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rustc/library/stdarch/examples/connect5.rs
Ximin Luo cdc7bbd594 New upstream version 1.53.0+dfsg1
2021-10-02 01:29:42 +01:00

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//! <b>Outer-Open Gomoku</b> is a board game which is a enhanced version of connect5 (Gomoku).\
//! The game is a two-player game which played on a 15x15 Go board.\
//! Two players take turns placing a move on an empty intersection in this board.\
//! The winner is the first player to form an unbroken chain of five moves horizontally, vertically, or diagonally.\
//! Unlike Gomoku, the first move is required to be placed at the two outer rows or columns of this board.\
//! This program provides an AI playing with Minimax search with alpha-beta pruning which uses
//! patterns on evaluation.\
//! The avx512 intrinsic can do 32 pattern matching at one time.\
//! This avx512 is tested with non-avx512 code to verify its correctness.\
//!
//! On Intel i7-7800x using single thread with fixed AVX-512 clock at 4.0GHz, the avx512 is speed up about 9x.\
//! The average time for each move in the avx512 is around 14.00s <span>&#177;</span> 1.31s and in the non-avx512
//! is 129.02s <span>&#177;</span> 4.96s.\
//! On Intel Tiger Lake i7-1165G7, the avx512 is around 11.11s <span>&#177;</span> 1.31s.
//!
//! <b>Pattern Matching</b>\
//! Use 512-bit to present the board state. The location 0 is top left.\
//! 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 <b>15</b>\
//! 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 <b>31</b>\
//! ...\
//! Pattern "OOOOO" is matching through "0 1 2 3 4", "1 2 3 4 5", ...\
//! Using avx512, "0 1 2 3 4", "16 17 18 19 20", ... can be matched simultaneously.\
//!
//! //! You can test out this program via:
//!
//! cargo +nightly run --release --bin connect5
//!
//! You should see a game self-playing. In the end of the game, it shows the average time for
//! each move.
#![feature(stdsimd, avx512_target_feature)]
#![feature(stmt_expr_attributes)]
use rand::seq::SliceRandom;
use rand::thread_rng;
use std::cmp;
use std::time::Instant;
#[cfg(target_arch = "x86")]
use {core_arch::arch::x86::*, std_detect::is_x86_feature_detected};
#[cfg(target_arch = "x86_64")]
use {core_arch::arch::x86_64::*, std_detect::is_x86_feature_detected};
// types
#[derive(Clone, Copy, PartialEq, Eq)]
pub enum Color {
Black = 0,
White = 1,
Empty = 2,
Border = 3,
}
type Square = i32;
type Move = i32;
type Side = Color;
// constants
const FILE_SIZE: i32 = 15;
const RANK_SIZE: i32 = 15;
const SQUARE_SIZE: i32 = (FILE_SIZE + 1) * (FILE_SIZE + 4) + 16 + 4;
const EVAL_INF: i32 = FILE_SIZE * RANK_SIZE * 100;
const MOVE_NONE: Move = -1;
const SCORE_NONE: i32 = -EVAL_INF - 1;
/// DIRECTION 0: left to right\
/// DIRECTION 1: top to bottom\
/// DIRECTION 2: top left to bottom right\
/// DIRECTION 3: top right to bottom left
#[rustfmt::skip]
const DIRECTION: [[i32; 5]; 4] = [ [1, 2, 3, 4, 5],
[1 * (FILE_SIZE + 1), 2 * (FILE_SIZE + 1), 3 * (FILE_SIZE + 1), 4 * (FILE_SIZE + 1), 5 * (FILE_SIZE + 1)],
[1 * (FILE_SIZE + 2), 2 * (FILE_SIZE + 2), 3 * (FILE_SIZE + 2), 4 * (FILE_SIZE + 2), 5 * (FILE_SIZE + 2)],
[1 * (FILE_SIZE + 0), 2 * (FILE_SIZE + 0), 3 * (FILE_SIZE + 0), 4 * (FILE_SIZE + 0), 5 * (FILE_SIZE + 0)]];
/// A table to encode each location to a value in bit 31-0 in the bitboard for 4 direction
#[rustfmt::skip]
const MAPMOVEVALUE: [[i32; 239]; 4] = [ [// Direction 0
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17, 0,
1<<31, 1<<30, 1<<29, 1<<28, 1<<27, 1<<26, 1<<25, 1<<24, 1<<23, 1<<22, 1<<21, 1<<20, 1<<19, 1<<18, 1<<17],
[// Direction 1
1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 1<<31, 0,
1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 1<<30, 0,
1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 1<<29, 0,
1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 1<<28, 0,
1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 1<<27, 0,
1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 1<<26, 0,
1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 1<<25, 0,
1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 1<<24, 0,
1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 1<<23, 0,
1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 1<<22, 0,
1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 1<<21, 0,
1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 1<<20, 0,
1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 1<<19, 0,
1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 1<<18, 0,
1<<17, 1<<17, 1<<17, 1<<17, 1<<17, 1<<17, 1<<17, 1<<17, 1<<17, 1<<17, 1<<17, 1<<17, 1<<17, 1<<17, 1<<17],
[// Direction 2
1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 0, 0, 0, 0, 0,
1<<15, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 0, 0, 0, 0,
1<<15, 1<<14, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 0, 0, 0,
1<<15, 1<<14, 1<<13, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 0, 0,
1<<15, 1<<14, 1<<13, 1<<12, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 0,
1<<15, 1<<14, 1<<13, 1<<12, 1<<11, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 0,
1<<9, 1<<14, 1<<13, 1<<12, 1<<11, 1<<10, 1<<9, 1<<9, 1<<9, 1<<9, 1<<9, 1<<9, 1<<9, 1<<9, 1<<9, 0,
1<<8, 1<<8, 1<<13, 1<<12, 1<<11, 1<<10, 1<<9, 1<<8, 1<<8, 1<<8, 1<<8, 1<<8, 1<<8, 1<<8, 1<<8, 0,
1<<7, 1<<7, 1<<7, 1<<12, 1<<11, 1<<10, 1<<9, 1<<8, 1<<7, 1<<7, 1<<7, 1<<7, 1<<7, 1<<7, 1<<7, 0,
1<<6, 1<<6, 1<<6, 1<<6, 1<<11, 1<<10, 1<<9, 1<<8, 1<<7, 1<<6, 1<<6, 1<<6, 1<<6, 1<<6, 1<<6, 0,
1<<5, 1<<5, 1<<5, 1<<5, 1<<5, 1<<10, 1<<9, 1<<8, 1<<7, 1<<6, 1<<5, 1<<5, 1<<5, 1<<5, 1<<5, 0,
0, 1<<4, 1<<4, 1<<4, 1<<4, 1<<4, 1<<9, 1<<8, 1<<7, 1<<6, 1<<5, 1<<4, 1<<4, 1<<4, 1<<4, 0,
0, 0, 1<<3, 1<<3, 1<<3, 1<<3, 1<<3, 1<<8, 1<<7, 1<<6, 1<<5, 1<<4, 1<<3, 1<<3, 1<<3, 0,
0, 0, 0, 1<<2, 1<<2, 1<<2, 1<<2, 1<<2, 1<<7, 1<<6, 1<<5, 1<<4, 1<<3, 1<<2, 1<<2, 0,
0, 0, 0, 0, 1<<1, 1<<1, 1<<1, 1<<1, 1<<1, 1<<6, 1<<5, 1<<4, 1<<3, 1<<2, 1<<1],
[// Direction 3
0, 0, 0, 0, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 1<<15, 0,
0, 0, 0, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<14, 1<<15, 0,
0, 0, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<13, 1<<14, 1<<15, 0,
0, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<12, 1<<13, 1<<14, 1<<15, 0,
1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<11, 1<<12, 1<<13, 1<<14, 1<<15, 0,
1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<10, 1<<11, 1<<12, 1<<13, 1<<14, 1<<15, 0,
1<<9, 1<<9, 1<<9, 1<<9, 1<<9, 1<<9, 1<<9, 1<<9, 1<<9, 1<<10, 1<<11, 1<<12, 1<<13, 1<<14, 1<<9, 0,
1<<8, 1<<8, 1<<8, 1<<8, 1<<8, 1<<8, 1<<8, 1<<8, 1<<9, 1<<10, 1<<11, 1<<12, 1<<13, 1<<8, 1<<8, 0,
1<<7, 1<<7, 1<<7, 1<<7, 1<<7, 1<<7, 1<<7, 1<<8, 1<<9, 1<<10, 1<<11, 1<<12, 1<<7, 1<<7, 1<<7, 0,
1<<6, 1<<6, 1<<6, 1<<6, 1<<6, 1<<6, 1<<7, 1<<8, 1<<9, 1<<10, 1<<11, 1<<6, 1<<6, 1<<6, 1<<6, 0,
1<<5, 1<<5, 1<<5, 1<<5, 1<<5, 1<<6, 1<<7, 1<<8, 1<<9, 1<<10, 1<<5, 1<<5, 1<<5, 1<<5, 1<<5, 0,
1<<4, 1<<4, 1<<4, 1<<4, 1<<5, 1<<6, 1<<7, 1<<8, 1<<9, 1<<4, 1<<4, 1<<4, 1<<4, 1<<4, 0, 0,
1<<3, 1<<3, 1<<3, 1<<4, 1<<5, 1<<6, 1<<7, 1<<8, 1<<3, 1<<3, 1<<3, 1<<3, 1<<3, 0, 0, 0,
1<<2, 1<<2, 1<<3, 1<<4, 1<<5, 1<<6, 1<<7, 1<<2, 1<<2, 1<<2, 1<<2, 1<<2, 0, 0, 0, 0,
1<<1, 1<<2, 1<<3, 1<<4, 1<<5, 1<<6, 1<<1, 1<<1, 1<<1, 1<<1, 1<<1, 0, 0, 0, 0]
];
/// A table to encode each location to an index in the bitboard for 4 direction
#[rustfmt::skip]
const MAPMOVEIDX: [[i32; 239]; 4] = [ [// Direction 0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 0,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 0,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 0,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 0,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 0,
10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 0,
11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 0,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 0,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 0,
14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
[// Direction 1
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14],
[// Direction 2
10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0,
11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0,
12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0,
13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0,
14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0,
15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0,
1, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 0,
2, 1, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 0,
3, 2, 1, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 0,
4, 3, 2, 1, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 0,
5, 4, 3, 2, 1, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 0,
0, 5, 4, 3, 2, 1, 15, 14, 13, 12, 11, 10, 9, 8, 7, 0,
0, 0, 5, 4, 3, 2, 1, 15, 14, 13, 12, 11, 10, 9, 8, 0,
0, 0, 0, 5, 4, 3, 2, 1, 15, 14, 13, 12, 11, 10, 9, 0,
0, 0, 0, 0, 5, 4, 3, 2, 1, 15, 14, 13, 12, 11, 10],
[// Direction 3
0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 0,
0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 0,
0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 0,
0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0,
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 0,
3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 2, 0,
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 2, 3, 0,
5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 2, 3, 4, 0,
6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 2, 3, 4, 5, 0,
7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 2, 3, 4, 5, 0, 0,
8, 9, 10, 11, 12, 13, 14, 15, 1, 2, 3, 4, 5, 0, 0, 0,
9, 10, 11, 12, 13, 14, 15, 1, 2, 3, 4, 5, 0, 0, 0, 0,
10, 11, 12, 13, 14, 15, 1, 2, 3, 4, 5, 0, 0, 0, 0]
];
// structures
/// Use one-dimensional array to store the board state. The location 0 is top left.\
/// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 <b>15</b>\
/// 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 <b>31</b>\
/// ... \
/// position 15, 31, ... are Borders.\
/// position 0 is file 0, rank 0.\
/// position 17 is file 1, rank 1.\
///
/// Use a three-dimensional array to store the bitboard.\
/// The first dimension is color: Black, White and Empty.\
/// The second and third one are 2 x 512-bit. Direction 0 and 2 use the first 512-bit. Direction 1 and
/// 3 use the second 512-bit.\
/// Each 512-bit is a 32-bit x 16 array. Direction 0 and 1 store at bit 31-16 and Direction 2 and 3 store at bit 15-0.
pub struct Pos {
// position
state: [Color; SQUARE_SIZE as usize],
p_turn: Side,
bitboard: [[[i32; 16]; 2]; 3],
}
impl Pos {
pub fn init(&mut self) {
// starting position
// Set up the Border
for i in 0..SQUARE_SIZE as usize {
self.state[i] = Color::Border;
}
// In the beginning, all is Empty
for rk in 0..RANK_SIZE {
for fl in 0..FILE_SIZE {
let sq: Square = square_make(fl, rk);
self.state[sq as usize] = Color::Empty;
}
}
// first move is Black
self.p_turn = Color::Black;
let black = Color::Black as usize;
let white = Color::White as usize;
let empty = Color::Empty as usize;
// set up the corresponding bitboard
for i in 0..2 {
for j in 0..16 {
self.bitboard[black][i][j] = 0;
self.bitboard[white][i][j] = 0;
self.bitboard[empty][i][j] = 0;
}
}
for i in 0..2 {
// use bit 31-16 to store direction 0 and 1
#[rustfmt::skip]
for j in 0..FILE_SIZE as usize {
self.bitboard[empty][i][j] = (1<<31)|(1<<30)|(1<<29)|(1<<28)|(1<<27)|(1<<26)|(1<<25)|(1<<24)|(1<<23)|(1<<22)|(1<<21)|(1<<20)|(1<<19)|(1<<18)|(1<<17);
}
}
// use bit 15-0 to store direction 2 and 3. There are 21 for each one. We combine row1 and row16, row2 and row17, row3 and row18, row4 and row19, and row 5 and row20
#[rustfmt::skip]
for i in 0..2 {
self.bitboard[empty][i][0] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11); //row 0
self.bitboard[empty][i][1] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)/*row1*/|(1<<9)|(1<<8)|(1<<7)|(1<<6)|(1<<5)|(1<<4)|(1<<3)|(1<<2)|(1<<1);//row16
self.bitboard[empty][i][2] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)/*row2*/|(1<<8)|(1<<7)|(1<<6)|(1<<5)|(1<<4)|(1<<3)|(1<<2)|(1<<1);//row17
self.bitboard[empty][i][3] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)/*row3*/|(1<<7)|(1<<6)|(1<<5)|(1<<4)|(1<<3)|(1<<2)|(1<<1);//row18
self.bitboard[empty][i][4] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)/*row4*/|(1<<6)|(1<<5)|(1<<4)|(1<<3)|(1<<2)|(1<<1);//row19
self.bitboard[empty][i][5] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6)/*row5*/|(1<<5)|(1<<4)|(1<<3)|(1<<2)|(1<<1);//row20
self.bitboard[empty][i][6] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6)|(1<<5);//row6
self.bitboard[empty][i][7] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6)|(1<<5)|(1<<4);//row7
self.bitboard[empty][i][8] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6)|(1<<5)|(1<<4)|(1<<3);//row8
self.bitboard[empty][i][9] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6)|(1<<5)|(1<<4)|(1<<3)|(1<<2);//row9
self.bitboard[empty][i][10] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6)|(1<<5)|(1<<4)|(1<<3)|(1<<2)|(1<<1);//row10
self.bitboard[empty][i][11] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6)|(1<<5)|(1<<4)|(1<<3)|(1<<2);//row11
self.bitboard[empty][i][12] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6)|(1<<5)|(1<<4)|(1<<3);//row12
self.bitboard[empty][i][13] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6)|(1<<5)|(1<<4);//row13
self.bitboard[empty][i][14] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6)|(1<<5);//row14
self.bitboard[empty][i][15] |= (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6);//row15
}
}
pub fn do_move(&mut self, mv: Move) {
let atk: Side = self.p_turn;
let def: Side = side_opp(atk);
let mv = mv as usize;
let black = Color::Black as usize;
let white = Color::White as usize;
let empty = Color::Empty as usize;
match self.p_turn {
Color::Black => {
self.state[mv as usize] = Color::Black;
// update black move and remove empty move in bitboard
self.bitboard[black][0][MAPMOVEIDX[0][mv] as usize] |= MAPMOVEVALUE[0][mv];
self.bitboard[empty][0][MAPMOVEIDX[0][mv] as usize] ^= MAPMOVEVALUE[0][mv];
self.bitboard[black][1][MAPMOVEIDX[1][mv] as usize] |= MAPMOVEVALUE[1][mv];
self.bitboard[empty][1][MAPMOVEIDX[1][mv] as usize] ^= MAPMOVEVALUE[1][mv];
self.bitboard[black][0][MAPMOVEIDX[2][mv] as usize] |= MAPMOVEVALUE[2][mv];
self.bitboard[empty][0][MAPMOVEIDX[2][mv] as usize] ^= MAPMOVEVALUE[2][mv];
self.bitboard[black][1][MAPMOVEIDX[3][mv] as usize] |= MAPMOVEVALUE[3][mv];
self.bitboard[empty][1][MAPMOVEIDX[3][mv] as usize] ^= MAPMOVEVALUE[3][mv];
}
Color::White => {
self.state[mv as usize] = Color::White;
// update white move and remove empty move in bitboard
self.bitboard[white][0][MAPMOVEIDX[0][mv] as usize] |= MAPMOVEVALUE[0][mv];
self.bitboard[empty][0][MAPMOVEIDX[0][mv] as usize] ^= MAPMOVEVALUE[0][mv];
self.bitboard[white][1][MAPMOVEIDX[1][mv] as usize] |= MAPMOVEVALUE[1][mv];
self.bitboard[empty][1][MAPMOVEIDX[1][mv] as usize] ^= MAPMOVEVALUE[1][mv];
self.bitboard[white][0][MAPMOVEIDX[2][mv] as usize] |= MAPMOVEVALUE[2][mv];
self.bitboard[empty][0][MAPMOVEIDX[2][mv] as usize] ^= MAPMOVEVALUE[2][mv];
self.bitboard[white][1][MAPMOVEIDX[3][mv] as usize] |= MAPMOVEVALUE[3][mv];
self.bitboard[empty][1][MAPMOVEIDX[3][mv] as usize] ^= MAPMOVEVALUE[3][mv];
}
_ => panic! {},
}
self.p_turn = def;
}
fn turn(&self) -> Side {
self.p_turn
}
pub fn can_play(&self, from: Square) -> bool {
if self.state[from as usize] == Color::Empty {
true
} else {
false
}
}
}
pub struct List {
// legal move list
p_move: [Move; (FILE_SIZE * RANK_SIZE) as usize],
p_size: i32,
}
/// Use List to store legal moves.
impl List {
pub fn clear(&mut self) {
self.p_size = 0;
}
pub fn add(&mut self, mv: Move) {
self.p_move[self.p_size as usize] = mv;
self.p_size += 1;
}
pub fn size(&self) -> i32 {
self.p_size
}
pub fn shuffle(&mut self) {
let mut rng = thread_rng();
let num = self.p_size;
let mut new_move: Vec<Move> = vec![];
for x in 0..(num as usize) {
new_move.push(self.p_move[x]);
}
new_move.shuffle(&mut rng);
for x in 0..(self.p_size as usize) {
self.p_move[x] = new_move[x];
}
}
}
// functions
fn square_make(fl: i32, rk: i32) -> Square {
rk * (FILE_SIZE + 1) + fl
}
fn side_opp(sd: Side) -> Side {
match sd {
Side::White => Side::Black,
Side::Black => Side::White,
_ => panic!(""),
}
}
fn pos_is_winner(pos: &Pos) -> bool {
let current_side = side_opp(pos.p_turn);
check_pattern5(&pos, current_side)
}
fn pos_is_draw(pos: &Pos) -> bool {
let mut found: bool = true;
for rk in 0..RANK_SIZE {
for fl in 0..FILE_SIZE {
let sq: Square = square_make(fl, rk);
if pos.can_play(sq) {
found = false;
break;
}
if found == false {
break;
}
}
}
let mut out: bool = false;
if found == true && !pos_is_winner(pos) {
out = true;
}
out
}
#[target_feature(enable = "avx512f,avx512bw")]
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
unsafe fn pos_is_draw_avx512(pos: &Pos) -> bool {
let empty = Color::Empty as usize;
let board0org = _mm512_loadu_epi32(&pos.bitboard[empty][0][0]);
let answer = _mm512_set1_epi32(0);
// if all empty is 0, all board is filled.
let temp_mask = _mm512_mask_cmpneq_epi32_mask(0b11111111_11111111, answer, board0org);
if _popcnt32(temp_mask as i32) == 0 && !pos_is_winner_avx512(pos) {
return true;
} else {
return false;
}
}
fn pos_is_end(pos: &Pos) -> bool {
if pos_is_winner(pos) || pos_is_draw(pos) {
true
} else {
false
}
}
fn pos_disp(pos: &Pos) {
for rk in 0..RANK_SIZE {
for fl in 0..FILE_SIZE {
let sq: Square = square_make(fl, rk);
match pos.state[sq as usize] {
Color::Black => print!("# "),
Color::White => print!("O "),
Color::Empty => print!("- "),
Color::Border => print!("| "),
}
}
println!("");
}
match pos.turn() {
Color::Black => println!("black to play"),
Color::White => println!("white to play"),
_ => panic!(),
}
}
fn gen_moves(list: &mut List, pos: &Pos) {
list.clear();
for rk in 0..RANK_SIZE {
for fl in 0..FILE_SIZE {
let sq: Square = square_make(fl, rk);
if pos.can_play(sq) {
list.add(sq);
}
}
}
}
/// AI: use Minimax search with alpha-beta pruning
fn search(pos: &Pos, alpha: i32, beta: i32, depth: i32, _ply: i32) -> i32 {
assert!(-EVAL_INF <= alpha && alpha < beta && beta <= EVAL_INF);
// leaf?
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{
if is_x86_feature_detected!("avx512bw") {
unsafe {
if pos_is_winner_avx512(&pos) {
return -EVAL_INF + _ply;
}
if pos_is_draw_avx512(&pos) {
return 0;
}
}
} else {
if pos_is_winner(&pos) {
return -EVAL_INF + _ply;
}
if pos_is_draw(&pos) {
return 0;
}
}
}
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
{
if pos_is_winner(&pos) {
return -EVAL_INF + _ply;
}
if pos_is_draw(&pos) {
return 0;
}
}
if depth == 0 {
return eval(&pos, _ply);
}
let p_move_new: [Move; (FILE_SIZE * RANK_SIZE) as usize] =
[0; (FILE_SIZE * RANK_SIZE) as usize];
let mut list = List {
p_move: p_move_new,
p_size: 0,
};
let mut bm: Move = MOVE_NONE;
let mut bs: i32 = SCORE_NONE;
gen_moves(&mut list, &pos);
// move loop
if _ply == 0 {
list.shuffle();
}
for i in 0..list.size() {
if bs < beta {
let mv: Move = list.p_move[i as usize];
let mut new_pos = Pos {
state: pos.state,
p_turn: pos.p_turn,
bitboard: pos.bitboard,
};
new_pos.do_move(mv);
let sc: i32 = -search(&new_pos, -beta, -cmp::max(alpha, bs), depth - 1, _ply + 1);
if sc > bs {
bm = mv;
bs = sc;
}
}
}
assert!(bm != MOVE_NONE);
assert!(bs >= -EVAL_INF && bs <= EVAL_INF);
if _ply == 0 {
bm
} else {
bs
} //best move at the root node, best score elsewhere
}
/// Evaluation function: give different scores to different patterns after a fixed depth.
fn eval(pos: &Pos, _ply: i32) -> i32 {
let atk: Side = pos.turn();
let def: Side = side_opp(atk);
// check if opp has live4 which will win playing next move
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{
if is_x86_feature_detected!("avx512bw") {
unsafe {
if check_patternlive4_avx512(&pos, def) {
return -4096;
}
}
} else {
if check_patternlive4(&pos, def) {
return -4096;
}
}
}
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
{
if check_patternlive4(&pos, def) {
return -4096;
}
}
// check if self has live4 which will win playing next move
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{
if is_x86_feature_detected!("avx512bw") {
unsafe {
if check_patternlive4_avx512(&pos, atk) {
return 2560;
}
}
} else {
if check_patternlive4(&pos, atk) {
return 2560;
}
}
}
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
{
if check_patternlive4(&pos, atk) {
return 2560;
}
}
// check if self has dead4 which will win playing next move
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{
if is_x86_feature_detected!("avx512bw") {
unsafe {
if check_patterndead4_avx512(&pos, atk) > 0 {
return 2560;
}
}
} else {
if check_patterndead4(&pos, atk) > 0 {
return 2560;
}
}
}
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
{
if check_patterndead4(&pos, atk) > 0 {
return 2560;
}
}
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{
if is_x86_feature_detected!("avx512bw") {
unsafe {
let n_c4: i32 = check_patterndead4_avx512(&pos, def);
let n_c3: i32 = check_patternlive3_avx512(&pos, def);
// check if opp has 2 dead4 which will win playing next move
if n_c4 > 1 {
return -2048;
}
// check if opp has a dead 4 and live 3 which will win playing the next two move
if n_c4 == 1 && n_c3 > 0 {
return -2048;
}
if check_patternlive3_avx512(&pos, atk) > 1 {
return 2560;
}
// check if opp has 2 live3 which will win playing the next two move
if n_c3 > 1 {
return -2048;
}
}
} else {
let n_c4: i32 = check_patterndead4(&pos, def);
let n_c3: i32 = check_patternlive3(&pos, def);
// check if opp has 2 dead4 which will win playing next move
if n_c4 > 1 {
return -2048;
}
// check if opp has a dead 4 and live 3 which will win playing the next two move
if n_c4 == 1 && n_c3 > 0 {
return -2048;
}
// check if self has 2 live3 which will win playing the next two move
if check_patternlive3(&pos, atk) > 1 {
return 2560;
}
// check if opp has 2 live3 which will win playing the next two move
if n_c3 > 1 {
return -2048;
}
}
}
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
{
let n_c4: i32 = check_patterndead4(&pos, def);
let n_c3: i32 = check_patternlive3(&pos, def);
// check if opp has 2 dead4 which will win playing next move
if n_c4 > 1 {
return -2048;
}
// check if opp has a dead 4 and live 3 which will win playing the next two move
if n_c4 == 1 && n_c3 > 0 {
return -2048;
}
// check if self has 2 live3 which will win playing the next two move
if check_patternlive3(&pos, atk) > 1 {
return 2560;
}
// check if opp has 2 live3 which will win playing the next two move
if n_c3 > 1 {
return -2048;
}
}
0
}
/// Check <b>OOOOO</b>
fn check_pattern5(pos: &Pos, sd: Side) -> bool {
let mut n: i32 = 0;
for rk in 0..RANK_SIZE {
for fl in 0..FILE_SIZE {
let sq: Square = square_make(fl, rk);
for pat in 0..4 {
let idx0 = sq;
let idx1 = sq + DIRECTION[pat][0];
let idx2 = sq + DIRECTION[pat][1];
let idx3 = sq + DIRECTION[pat][2];
let idx4 = sq + DIRECTION[pat][3];
let val0 = pos.state[idx0 as usize];
let val1 = pos.state[idx1 as usize];
let val2 = pos.state[idx2 as usize];
let val3 = pos.state[idx3 as usize];
let val4 = pos.state[idx4 as usize];
#[rustfmt::skip]
if val0 == sd && val1 == sd && val2 == sd && val3 == sd && val4 == sd { n += 1; }
}
}
}
if n > 0 {
true
} else {
false
}
}
/// Check <b>-OOOO-</b>
fn check_patternlive4(pos: &Pos, sd: Side) -> bool {
let mut n: i32 = 0;
for rk in 0..RANK_SIZE {
for fl in 0..FILE_SIZE {
let sq: Square = square_make(fl, rk);
for pat in 0..4 {
let idx0 = sq;
let idx1 = sq + DIRECTION[pat][0];
let idx2 = sq + DIRECTION[pat][1];
let idx3 = sq + DIRECTION[pat][2];
let idx4 = sq + DIRECTION[pat][3];
let idx5 = sq + DIRECTION[pat][4];
let val0 = pos.state[idx0 as usize];
let val1 = pos.state[idx1 as usize];
let val2 = pos.state[idx2 as usize];
let val3 = pos.state[idx3 as usize];
let val4 = pos.state[idx4 as usize];
let val5 = pos.state[idx5 as usize];
#[rustfmt::skip]
if val0 == Color::Empty && val1 == sd && val2 == sd && val3 == sd && val4 == sd && val5 == Color::Empty { n += 1; }
}
}
}
if n > 0 {
true
} else {
false
}
}
/// Check <b>OOOO-, OOO-O, OO-OO, O-OOO, -OOOO</b>
fn check_patterndead4(pos: &Pos, sd: Side) -> i32 {
let mut n: i32 = 0;
for rk in 0..RANK_SIZE {
for fl in 0..FILE_SIZE {
let sq: Square = square_make(fl, rk);
for dir in 0..4 {
let idx0 = sq;
let idx1 = sq + DIRECTION[dir][0];
let idx2 = sq + DIRECTION[dir][1];
let idx3 = sq + DIRECTION[dir][2];
let idx4 = sq + DIRECTION[dir][3];
let val0 = pos.state[idx0 as usize];
let val1 = pos.state[idx1 as usize];
let val2 = pos.state[idx2 as usize];
let val3 = pos.state[idx3 as usize];
let val4 = pos.state[idx4 as usize];
#[rustfmt::skip]
if val0 == sd && val1 == sd && val2 == sd && val3 == sd && val4 == Color::Empty { n += 1; }
#[rustfmt::skip]
if val0 == sd && val1 == sd && val2 == sd && val3 == Color::Empty && val4 == sd { n += 1; }
#[rustfmt::skip]
if val0 == sd && val1 == sd && val2 == Color::Empty && val3 == sd && val4 == sd { n += 1; }
#[rustfmt::skip]
if val0 == sd && val1 == Color::Empty && val2 == sd && val3 == sd && val4 == sd { n += 1; }
#[rustfmt::skip]
if val0 == Color::Empty && val1 == sd && val2 == sd && val3 == sd && val4 == sd { n += 1; }
}
}
}
n
}
/// Check <b>-OOO-, -OO-O-, -O-OO-</br>
fn check_patternlive3(pos: &Pos, sd: Side) -> i32 {
let mut n: i32 = 0;
for rk in 0..RANK_SIZE {
for fl in 0..FILE_SIZE {
let sq: Square = square_make(fl, rk);
for dir in 0..4 {
let idx0 = sq;
let idx1 = sq + DIRECTION[dir][0];
let idx2 = sq + DIRECTION[dir][1];
let idx3 = sq + DIRECTION[dir][2];
let idx4 = sq + DIRECTION[dir][3];
let idx5 = sq + DIRECTION[dir][4];
let val0 = pos.state[idx0 as usize];
let val1 = pos.state[idx1 as usize];
let val2 = pos.state[idx2 as usize];
let val3 = pos.state[idx3 as usize];
let val4 = pos.state[idx4 as usize];
let val5 = pos.state[idx5 as usize];
#[rustfmt::skip]
if val0 == Color::Empty && val1 == sd && val2 == sd && val3 == sd && val4 == Color::Empty { n +=1; }
#[rustfmt::skip]
if val0 == Color::Empty && val1 == sd && val2 == sd && val3 == Color::Empty && val4 == sd && val5 == Color::Empty { n += 1; }
#[rustfmt::skip]
if val0 == Color::Empty && val1 == sd && val2 == Color::Empty && val3 == sd && val4 == sd && val5 == Color::Empty { n += 1; }
}
}
}
n
}
#[target_feature(enable = "avx512f,avx512bw")]
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
unsafe fn pos_is_winner_avx512(pos: &Pos) -> bool {
let current_side = side_opp(pos.p_turn);
let coloridx = current_side as usize;
let board0org: [__m512i; 2] = [
_mm512_loadu_epi32(&pos.bitboard[coloridx][0][0]),
_mm512_loadu_epi32(&pos.bitboard[coloridx][1][0]),
]; // load states from bitboard
#[rustfmt::skip]
let answer = _mm512_set1_epi16((1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)); // an unbroken chain of five moves
// use Mask to filter out which data is not processed.
// 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
// 1 x x x x _ _ _ _ _ _ _ _ _ _ _ 0 x o x o x 0 0 0 0 0 0 0 0 0 0 0
// 2 x _ _ _ _ o _ x o _ _ _ _ _ _ 0 x o _ _ _ _ _| x x o o o x x _ _
// . ...
// . ...
// . ...
// 16 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x o x o o o o o o o 0 0 0 0 0 0
//
// answer_mask[0]: 01_11..............: "0" is in row 16 and column 1-16.
// There is no data to match (x = black, o = white, _ = empty, 0 = no data).
//
//
// Then, shift one space left.
// 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
// 1 x x x _ _ _ _ _ _ _ _ _ _ _ 0 x o x o x 0 0 0 0 0 0 0 0 0 0 0 0
// . ...
// . ...
// . ...
// 16 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x o x o o o o o o o 0 0 0 0 0 0 0
// answer_mask[1]: ................_10: "0" is in row 1 and column 17-32;
// There is no enough data to match (o x o x but we want to match o o o o o).
//
// answer_mask[2]: mix 2 data together (column 17-23 and column 24-32). Using Mask to make it match correctly.
// For example, column 23,24,25,26,27 is not a pattern and 24,25,26,27,28 is a pattern.
// That is why some mask bits are set to 0 from answer_mask[2] to answer_mask[10].
#[rustfmt::skip]
let answer_mask: [__mmask32; 11] = [0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_11_11,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_11_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_10_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_10_10_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_10_10_10_10_10,
0b00_11_11_11_11_11_11_11_11_11_10_10_10_10_11_10,
0b00_10_11_11_11_11_11_11_11_10_10_10_10_11_11_10,
0b00_10_10_11_11_11_11_11_10_10_10_10_11_11_11_10,
0b00_10_10_10_11_11_11_10_10_10_10_11_11_11_11_10,
0b00_10_10_10_10_11_10_10_10_10_11_11_11_11_11_10];
let mut count_match: i32 = 0;
for dir in 0..2 {
// direction 0 and 1
let mut board0 = board0org[dir];
let boardf = _mm512_and_si512(answer, board0);
let temp_mask = _mm512_mask_cmpeq_epi16_mask(answer_mask[0], answer, boardf);
count_match += _popcnt32(temp_mask as i32);
for i in 1..11 {
// OOOOOOOOOOO----, the last 4 "-" cannot make an unbroken chain of five.
board0 = _mm512_slli_epi32(board0, 1); // shift one space left
let boardf = _mm512_and_si512(answer, board0); // focus on the pattern
let temp_mask = _mm512_mask_cmpeq_epi16_mask(answer_mask[i], answer, boardf); // see if it matches the pattern
count_match += _popcnt32(temp_mask as i32);
}
}
if count_match > 0 {
return true;
} else {
return false;
}
}
#[target_feature(enable = "avx512f,avx512bw")]
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
unsafe fn check_patternlive4_avx512(pos: &Pos, sd: Side) -> bool {
let coloridx = sd as usize;
let emptyidx = Color::Empty as usize;
#[rustfmt::skip]
let answer_color = _mm512_set1_epi16( (1<<14)|(1<<13)|(1<<12)|(1<<11) );
#[rustfmt::skip]
let answer_empty = _mm512_set1_epi16( (1<<15)| (1<<10) );
#[rustfmt::skip]
let answer = _mm512_set1_epi16( (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10) );
#[rustfmt::skip]
let answer_mask: [__mmask32; 10] = [0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_11_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_10_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_10_10_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_10_10_10_10_10,
0b00_11_11_11_11_11_11_11_11_11_10_10_10_10_10_10,
0b00_10_11_11_11_11_11_11_11_10_10_10_10_10_11_10,
0b00_10_10_11_11_11_11_11_10_10_10_10_10_11_11_10,
0b00_10_10_10_11_11_11_10_10_10_10_10_11_11_11_10,
0b00_10_10_10_10_11_10_10_10_10_10_11_11_11_11_10];
let board0org: [__m512i; 2] = [
_mm512_loadu_epi32(&pos.bitboard[coloridx][0][0]),
_mm512_loadu_epi32(&pos.bitboard[coloridx][1][0]),
];
let board1org: [__m512i; 2] = [
_mm512_loadu_epi32(&pos.bitboard[emptyidx][0][0]),
_mm512_loadu_epi32(&pos.bitboard[emptyidx][1][0]),
];
let mut count_match: i32 = 0;
for dir in 0..2 {
let mut board0 = board0org[dir];
let mut board1 = board1org[dir];
let boardf1 = _mm512_and_si512(answer_color, board0);
let boardf2 = _mm512_and_si512(answer_empty, board1);
let boardf = _mm512_or_si512(boardf1, boardf2);
let temp_mask = _mm512_mask_cmpeq_epi16_mask(answer_mask[0], answer, boardf);
count_match += _popcnt32(temp_mask as i32);
for i in 1..10 {
board0 = _mm512_slli_epi32(board0, 1);
board1 = _mm512_slli_epi32(board1, 1);
let boardf1 = _mm512_and_si512(answer_color, board0);
let boardf2 = _mm512_and_si512(answer_empty, board1);
let boardf = _mm512_or_si512(boardf1, boardf2);
let temp_mask = _mm512_mask_cmpeq_epi16_mask(answer_mask[i], answer, boardf);
count_match += _popcnt32(temp_mask as i32);
}
}
if count_match > 0 {
return true;
} else {
return false;
}
}
#[target_feature(enable = "avx512f,avx512bw")]
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
unsafe fn check_patterndead4_avx512(pos: &Pos, sd: Side) -> i32 {
let coloridx = sd as usize;
let emptyidx = Color::Empty as usize;
#[rustfmt::skip]
let answer_color: [__m512i; 5] = [_mm512_set1_epi16( (1<<14)|(1<<13)|(1<<12)|(1<<11) ),
_mm512_set1_epi16( (1<<15)| (1<<13)|(1<<12)|(1<<11) ),
_mm512_set1_epi16( (1<<15)|(1<<14) |(1<<12)|(1<<11) ),
_mm512_set1_epi16( (1<<15)|(1<<14)|(1<<13) |(1<<11) ),
_mm512_set1_epi16( (1<<15)|(1<<14)|(1<<13)|(1<<12) )];
#[rustfmt::skip]
let answer_empty: [__m512i; 5]= [_mm512_set1_epi16( 1<<15 ),
_mm512_set1_epi16( 1<<14 ),
_mm512_set1_epi16( 1<<13 ),
_mm512_set1_epi16( 1<<12 ),
_mm512_set1_epi16( 1<<11)];
#[rustfmt::skip]
let answer = _mm512_set1_epi16( (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11));
#[rustfmt::skip]
let answer_mask: [__mmask32; 11] = [0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_11_11,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_11_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_10_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_10_10_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_10_10_10_10_10,
0b00_11_11_11_11_11_11_11_11_11_10_10_10_10_11_10,
0b00_10_11_11_11_11_11_11_11_10_10_10_10_11_11_10,
0b00_10_10_11_11_11_11_11_10_10_10_10_11_11_11_10,
0b00_10_10_10_11_11_11_10_10_10_10_11_11_11_11_10,
0b00_10_10_10_10_11_10_10_10_10_11_11_11_11_11_10];
let board0org: [__m512i; 2] = [
_mm512_loadu_epi32(&pos.bitboard[coloridx][0][0]),
_mm512_loadu_epi32(&pos.bitboard[coloridx][1][0]),
];
let board1org: [__m512i; 2] = [
_mm512_loadu_epi32(&pos.bitboard[emptyidx][0][0]),
_mm512_loadu_epi32(&pos.bitboard[emptyidx][1][0]),
];
let mut count_match: i32 = 0;
for pattern in 0..5 {
for dir in 0..2 {
let mut board0 = board0org[dir];
let mut board1 = board1org[dir];
let boardf1 = _mm512_and_si512(answer_color[pattern], board0);
let boardf2 = _mm512_and_si512(answer_empty[pattern], board1);
let boardf = _mm512_or_si512(boardf1, boardf2);
let temp_mask = _mm512_mask_cmpeq_epi16_mask(answer_mask[0], answer, boardf);
count_match += _popcnt32(temp_mask as i32);
for i in 1..11 {
board0 = _mm512_slli_epi32(board0, 1);
board1 = _mm512_slli_epi32(board1, 1);
let boardf1 = _mm512_and_si512(answer_color[pattern], board0);
let boardf2 = _mm512_and_si512(answer_empty[pattern], board1);
let boardf = _mm512_or_si512(boardf1, boardf2);
let temp_mask = _mm512_mask_cmpeq_epi16_mask(answer_mask[i], answer, boardf);
count_match += _popcnt32(temp_mask as i32);
}
}
}
count_match
}
#[target_feature(enable = "avx512f,avx512bw")]
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
unsafe fn check_patternlive3_avx512(pos: &Pos, sd: Side) -> i32 {
let coloridx = sd as usize;
let emptyidx = Color::Empty as usize;
#[rustfmt::skip]
let board0org: [__m512i; 2] = [_mm512_loadu_epi32(&pos.bitboard[coloridx][0][0]), _mm512_loadu_epi32(&pos.bitboard[coloridx][1][0])];
#[rustfmt::skip]
let board1org: [__m512i; 2] = [_mm512_loadu_epi32(&pos.bitboard[emptyidx][0][0]), _mm512_loadu_epi32(&pos.bitboard[emptyidx][1][0])];
#[rustfmt::skip]
let answer_color: [__m512i; 1] = [_mm512_set1_epi16( (1<<14)|(1<<13)|(1<<12) )];
#[rustfmt::skip]
let answer_empty: [__m512i; 1] = [_mm512_set1_epi16( (1<<15)| (1<<11) )];
#[rustfmt::skip]
let answer: __m512i = _mm512_set1_epi16( (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11) );
let mut count_match: i32 = 0;
#[rustfmt::skip]
let answer_mask: [__mmask32; 11] = [0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_11_11,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_11_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_10_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_10_10_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_10_10_10_10_10,
0b00_11_11_11_11_11_11_11_11_11_10_10_10_10_11_10,
0b00_10_11_11_11_11_11_11_11_10_10_10_10_11_11_10,
0b00_10_10_11_11_11_11_11_10_10_10_10_11_11_11_10,
0b00_10_10_10_11_11_11_10_10_10_10_11_11_11_11_10,
0b00_10_10_10_10_11_10_10_10_10_11_11_11_11_11_10];
for pattern in 0..1 {
for dir in 0..2 {
let mut board0 = board0org[dir];
let mut board1 = board1org[dir];
let boardf1 = _mm512_and_si512(answer_color[pattern], board0);
let boardf2 = _mm512_and_si512(answer_empty[pattern], board1);
let boardf = _mm512_or_si512(boardf1, boardf2);
let temp_mask = _mm512_mask_cmpeq_epi16_mask(answer_mask[0], answer, boardf);
count_match += _popcnt32(temp_mask as i32);
for i in 1..11 {
board0 = _mm512_slli_epi32(board0, 1);
board1 = _mm512_slli_epi32(board1, 1);
let boardf1 = _mm512_and_si512(answer_color[pattern], board0);
let boardf2 = _mm512_and_si512(answer_empty[pattern], board1);
let boardf = _mm512_or_si512(boardf1, boardf2);
let temp_mask = _mm512_mask_cmpeq_epi16_mask(answer_mask[i], answer, boardf);
count_match += _popcnt32(temp_mask as i32);
}
}
}
#[rustfmt::skip]
let answer_color: [__m512i; 2] = [_mm512_set1_epi16( (1<<14)| (1<<12)|(1<<11) ),
_mm512_set1_epi16( (1<<14)|(1<<13) |(1<<11) )];
#[rustfmt::skip]
let answer_empty: [__m512i; 2] = [_mm512_set1_epi16( (1<<15)| (1<<13)| (1<<10) ),
_mm512_set1_epi16( (1<<15)| (1<<12)| (1<<10) )];
#[rustfmt::skip]
let answer: __m512i = _mm512_set1_epi16( (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(1<<10) );
#[rustfmt::skip]
let answer_mask: [__mmask32; 10] = [0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_11_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_11_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_11_10_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_11_10_10_10_10,
0b01_11_11_11_11_11_11_11_11_11_11_10_10_10_10_10,
0b00_11_11_11_11_11_11_11_11_11_10_10_10_10_10_10,
0b00_10_11_11_11_11_11_11_11_10_10_10_10_10_11_10,
0b00_10_10_11_11_11_11_11_10_10_10_10_10_11_11_10,
0b00_10_10_10_11_11_11_10_10_10_10_10_11_11_11_10,
0b00_10_10_10_10_11_10_10_10_10_10_11_11_11_11_10];
for pattern in 0..2 {
for dir in 0..2 {
let mut board0 = board0org[dir];
let mut board1 = board1org[dir];
let boardf1 = _mm512_and_si512(answer_color[pattern], board0);
let boardf2 = _mm512_and_si512(answer_empty[pattern], board1);
let boardf = _mm512_or_si512(boardf1, boardf2);
let temp_mask = _mm512_mask_cmpeq_epi16_mask(answer_mask[0], answer, boardf);
count_match += _popcnt32(temp_mask as i32);
for i in 1..10 {
board0 = _mm512_slli_epi32(board0, 1);
board1 = _mm512_slli_epi32(board1, 1);
let boardf1 = _mm512_and_si512(answer_color[pattern], board0);
let boardf2 = _mm512_and_si512(answer_empty[pattern], board1);
let boardf = _mm512_or_si512(boardf1, boardf2);
let temp_mask = _mm512_mask_cmpeq_epi16_mask(answer_mask[i], answer, boardf);
count_match += _popcnt32(temp_mask as i32);
}
}
}
count_match
}
fn main() {
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{
if is_x86_feature_detected!("avx512bw") {
println!("\n\nThe program is running with avx512f and avx512bw intrinsics\n\n");
} else {
println!("\n\nThe program is running with NO intrinsics.\n\n");
}
}
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
{
println!("\n\nThe program is running with NO intrinsics.\n\n");
}
loop {
let start = Instant::now();
println!("Hello, this is Connect5 (Outer-Open Gomoku)!");
println!("Self-playing with search depth = 4");
let test_state: [Color; SQUARE_SIZE as usize] = [Color::Empty; SQUARE_SIZE as usize];
let test_bitboard: [[[i32; 16]; 2]; 3] = [[[0; 16]; 2]; 3];
let mut test1 = Pos {
state: test_state,
p_turn: Color::Black,
bitboard: test_bitboard,
};
test1.init();
let mut count: i32 = 0;
for i in 0..(FILE_SIZE * RANK_SIZE) {
let mut next_move: Move = square_make(1, 7); // set the first move is (1,7)
if i > 0 {
next_move = search(&test1, -EVAL_INF, EVAL_INF, 4, 0);
} // search depth = 4
test1.do_move(next_move);
pos_disp(&test1);
if pos_is_end(&test1) {
println!("Game over!!!!!! at Move {}", i);
count = i + 1;
break;
}
}
let duration = start.elapsed();
println!(
"Average time for each move is: {:?}",
duration / count as u32
);
}
}
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