zobrist: add zobrist hashing to nodes
This commit is contained in:
parent
94bd4ec01c
commit
412b019584
56
res/scripts/gen_zobrist_keys.py
Executable file
56
res/scripts/gen_zobrist_keys.py
Executable file
|
|
@ -0,0 +1,56 @@
|
|||
#!/usr/bin/env python3
|
||||
"""Generate Zobrist keys."""
|
||||
|
||||
import random
|
||||
|
||||
|
||||
random.seed("vatu stop playing your queen first you have other pieces")
|
||||
|
||||
TEMPLATE = """\
|
||||
pub const ZOBRIST_PIECES: [[[ZobristHash; 64]; 6]; 2] = [
|
||||
{}
|
||||
];
|
||||
|
||||
pub const ZOBRIST_BLACK_TURN: ZobristHash = {};
|
||||
|
||||
pub const ZOBRIST_CASTLE_WH_K: usize = 0;
|
||||
pub const ZOBRIST_CASTLE_WH_Q: usize = 1;
|
||||
pub const ZOBRIST_CASTLE_BL_K: usize = 2;
|
||||
pub const ZOBRIST_CASTLE_BL_Q: usize = 3;
|
||||
|
||||
pub const ZOBRIST_CASTLES: [ZobristHash; 4] = [
|
||||
{}
|
||||
];
|
||||
|
||||
pub const ZOBRIST_EN_PASSANT: [ZobristHash; 8] = [
|
||||
{}
|
||||
];
|
||||
"""
|
||||
|
||||
|
||||
def gen_hash():
|
||||
return random.getrandbits(64)
|
||||
|
||||
|
||||
def gen_pieces_keys():
|
||||
pieces_str = ""
|
||||
for color in range(2):
|
||||
pieces_str += " [\n"
|
||||
for piece in range(6):
|
||||
pieces_str += " [\n"
|
||||
for square in range(64):
|
||||
k = gen_hash()
|
||||
pieces_str += " {},\n".format(k)
|
||||
pieces_str += " ],\n"
|
||||
pieces_str += " ],\n"
|
||||
return pieces_str
|
||||
|
||||
|
||||
print(
|
||||
TEMPLATE.format(
|
||||
gen_pieces_keys(),
|
||||
gen_hash(),
|
||||
"\n".join([" {},".format(gen_hash()) for _ in range(4)]),
|
||||
"\n".join([" {},".format(gen_hash()) for _ in range(8)]),
|
||||
)
|
||||
)
|
||||
|
|
@ -190,10 +190,13 @@ impl Analyzer {
|
|||
let mut best_score = MIN_F32;
|
||||
let mut best_move = None;
|
||||
for m in &mut moves {
|
||||
node.apply_move(m);
|
||||
let hash_changes = node.apply_move(m);
|
||||
let result = self.negamax(node, -beta, -alpha, depth + 1);
|
||||
node.unmake_move(m);
|
||||
node.unmake_move(m, hash_changes);
|
||||
let score = -result.0;
|
||||
if self.debug && depth == 0 {
|
||||
self.log(format!("move {} evaluated {}", m.to_uci_string(), score));
|
||||
}
|
||||
if score > best_score {
|
||||
best_score = score;
|
||||
best_move = Some(m.to_owned());
|
||||
|
|
|
|||
|
|
@ -1,5 +1,6 @@
|
|||
//! Basic type definitions and functions.
|
||||
|
||||
// Reexport all precomputed board data for simplicity.
|
||||
pub use crate::precomputed::*;
|
||||
|
||||
/// Color type, used to index `Board.color`.
|
||||
|
|
|
|||
|
|
@ -186,7 +186,9 @@ impl Engine {
|
|||
|
||||
/// Apply a series of moves to the current node.
|
||||
fn apply_moves(&mut self, moves: &mut Vec<Move>) {
|
||||
moves.iter_mut().for_each(|m| m.apply_to(&mut self.node.board, &mut self.node.game_state));
|
||||
for m in moves.iter_mut() {
|
||||
m.apply_to(&mut self.node.board, &mut self.node.game_state);
|
||||
}
|
||||
}
|
||||
|
||||
/// Start working on board, returning the best move found.
|
||||
|
|
|
|||
|
|
@ -11,6 +11,7 @@ pub mod precomputed;
|
|||
pub mod rules;
|
||||
pub mod stats;
|
||||
pub mod uci;
|
||||
pub mod zobrist;
|
||||
|
||||
fn main() {
|
||||
let args = App::new("Vatu")
|
||||
|
|
|
|||
|
|
@ -5,6 +5,7 @@ use std::fmt;
|
|||
use crate::board::*;
|
||||
use crate::castling::*;
|
||||
use crate::rules::GameState;
|
||||
use crate::zobrist::*;
|
||||
|
||||
/// A movement, with before/after positions and optional promotion.
|
||||
#[derive(Clone, PartialEq)]
|
||||
|
|
@ -45,66 +46,106 @@ impl Move {
|
|||
///
|
||||
/// Set automatic queen promotion for pawns, register captured
|
||||
/// pieces and castle options.
|
||||
pub fn apply_to(&mut self, board: &mut Board, game_state: &mut GameState) {
|
||||
pub fn apply_to(&mut self, board: &mut Board, game_state: &mut GameState) -> ZobristHash {
|
||||
// Changes to a Zobrist hash due to this move.
|
||||
let mut changes: ZobristHash = 0;
|
||||
// Save current castling options to unmake later.
|
||||
self.old_castles = game_state.castling;
|
||||
|
||||
let piece = board.get_piece_on(self.source);
|
||||
// Handle king castling.
|
||||
if piece == KING {
|
||||
// Handle king castling.
|
||||
if let Some(castle) = self.get_castle() {
|
||||
match castle {
|
||||
CASTLE_WH_K => {
|
||||
board.move_square(E1, G1);
|
||||
board.move_square(H1, F1);
|
||||
game_state.castling &= !CASTLE_WH_MASK;
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_WH_K];
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_WH_Q];
|
||||
}
|
||||
CASTLE_WH_Q => {
|
||||
board.move_square(E1, C1);
|
||||
board.move_square(A1, D1);
|
||||
game_state.castling &= !CASTLE_WH_MASK;
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_WH_K];
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_WH_Q];
|
||||
}
|
||||
CASTLE_BL_K => {
|
||||
board.move_square(E8, G8);
|
||||
board.move_square(H8, F8);
|
||||
game_state.castling &= !CASTLE_BL_MASK;
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_BL_K];
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_BL_Q];
|
||||
}
|
||||
CASTLE_BL_Q => {
|
||||
board.move_square(E8, C8);
|
||||
board.move_square(A8, D8);
|
||||
game_state.castling &= !CASTLE_BL_MASK;
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_BL_K];
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_BL_Q];
|
||||
}
|
||||
_ => { panic!("Invalid castle.") }
|
||||
}
|
||||
game_state.color = opposite(game_state.color);
|
||||
return
|
||||
changes ^= ZOBRIST_BLACK_TURN;
|
||||
return changes
|
||||
} else {
|
||||
// If the king moved from starting square, remove it from castling options.
|
||||
if self.source == E1 { game_state.castling &= !CASTLE_WH_MASK; }
|
||||
else if self.source == E8 { game_state.castling &= !CASTLE_BL_MASK; }
|
||||
if self.source == E1 {
|
||||
game_state.castling &= !CASTLE_WH_MASK;
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_WH_K];
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_WH_Q];
|
||||
}
|
||||
else if self.source == E8 {
|
||||
game_state.castling &= !CASTLE_BL_MASK;
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_BL_K];
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_BL_Q];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Record captured piece if any.
|
||||
if !board.is_empty(self.dest) {
|
||||
self.capture = Some(board.get_piece_on(self.dest));
|
||||
let captured_piece = board.get_piece_on(self.dest);
|
||||
changes ^= get_piece_hash(opposite(game_state.color), captured_piece, self.dest);
|
||||
self.capture = Some(captured_piece);
|
||||
}
|
||||
|
||||
// Move the piece.
|
||||
// Move the piece and apply promotion if any.
|
||||
board.move_square(self.source, self.dest);
|
||||
|
||||
// Apply promotion if any.
|
||||
if let Some(piece) = self.promotion {
|
||||
board.set_piece(self.dest, PAWN, piece);
|
||||
changes ^= get_piece_hash(game_state.color, piece, self.source);
|
||||
if let Some(promotion_piece) = self.promotion {
|
||||
board.set_piece(self.dest, PAWN, promotion_piece);
|
||||
changes ^= get_piece_hash(game_state.color, promotion_piece, self.dest);
|
||||
} else {
|
||||
changes ^= get_piece_hash(game_state.color, piece, self.dest);
|
||||
}
|
||||
|
||||
// If a rook moved, remove the castle side.
|
||||
if self.source == A1 || self.dest == A1 { game_state.castling &= !CASTLE_WH_Q; }
|
||||
else if self.source == H1 || self.dest == H1 { game_state.castling &= !CASTLE_WH_K; }
|
||||
else if self.source == A8 || self.dest == A8 { game_state.castling &= !CASTLE_BL_Q; }
|
||||
else if self.source == H8 || self.dest == H8 { game_state.castling &= !CASTLE_BL_K; }
|
||||
if self.source == A1 || self.dest == A1 {
|
||||
game_state.castling &= !CASTLE_WH_Q;
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_WH_Q];
|
||||
}
|
||||
else if self.source == H1 || self.dest == H1 {
|
||||
game_state.castling &= !CASTLE_WH_K;
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_WH_K];
|
||||
}
|
||||
else if self.source == A8 || self.dest == A8 {
|
||||
game_state.castling &= !CASTLE_BL_Q;
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_BL_Q];
|
||||
}
|
||||
else if self.source == H8 || self.dest == H8 {
|
||||
game_state.castling &= !CASTLE_BL_K;
|
||||
changes ^= ZOBRIST_CASTLES[ZOBRIST_CASTLE_BL_K];
|
||||
}
|
||||
|
||||
// Finally, switch to the opposing player in the game state.
|
||||
game_state.color = opposite(game_state.color);
|
||||
changes ^= ZOBRIST_BLACK_TURN;
|
||||
|
||||
// Return changes as a Zobrist hash.
|
||||
changes
|
||||
}
|
||||
|
||||
/// Unmake a move.
|
||||
|
|
|
|||
13
src/node.rs
13
src/node.rs
|
|
@ -4,6 +4,7 @@ use crate::board;
|
|||
use crate::movement::Move;
|
||||
use crate::rules;
|
||||
use crate::stats;
|
||||
use crate::zobrist;
|
||||
|
||||
/// Analysis node: a board along with the game state.
|
||||
#[derive(Clone, PartialEq)]
|
||||
|
|
@ -12,6 +13,8 @@ pub struct Node {
|
|||
pub board: board::Board,
|
||||
/// Game state.
|
||||
pub game_state: rules::GameState,
|
||||
/// Zobrist hash of the node.
|
||||
pub hash: zobrist::ZobristHash,
|
||||
}
|
||||
|
||||
impl Node {
|
||||
|
|
@ -20,16 +23,20 @@ impl Node {
|
|||
Node {
|
||||
board: board::Board::new_empty(),
|
||||
game_state: rules::GameState::new(),
|
||||
hash: zobrist::get_new_game_hash(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Apply a move to this node.
|
||||
pub fn apply_move(&mut self, m: &mut Move) {
|
||||
m.apply_to(&mut self.board, &mut self.game_state);
|
||||
pub fn apply_move(&mut self, m: &mut Move) -> zobrist::ZobristHash {
|
||||
let changes = m.apply_to(&mut self.board, &mut self.game_state);
|
||||
self.hash ^= changes;
|
||||
changes
|
||||
}
|
||||
|
||||
pub fn unmake_move(&mut self, m: &Move) {
|
||||
pub fn unmake_move(&mut self, m: &Move, changes: zobrist::ZobristHash) {
|
||||
m.unmake(&mut self.board, &mut self.game_state);
|
||||
self.hash ^= changes;
|
||||
}
|
||||
|
||||
/// Return player moves from this node.
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
//! Ugly module with all kind of precomputed stuff.
|
||||
|
||||
use crate::board::{Square, Bitboard};
|
||||
use crate::zobrist::ZobristHash;
|
||||
|
||||
// Generated by gen_squares.py.
|
||||
pub const A1: Square = 0;
|
||||
|
|
@ -480,3 +481,828 @@ pub const KNIGHT_RAYS: [Bitboard; 64] = [
|
|||
0b00000000_00010000_10100000_00000000_00000000_00000000_00000000_00000000,
|
||||
0b00000000_00100000_01000000_00000000_00000000_00000000_00000000_00000000,
|
||||
];
|
||||
|
||||
// Generated by gen_zobrist_keys.py.
|
||||
pub const ZOBRIST_PIECES: [[[ZobristHash; 64]; 6]; 2] = [
|
||||
[
|
||||
[
|
||||
5230485930162234062,
|
||||
5238617895699405985,
|
||||
4709781846936492931,
|
||||
6480409461267432904,
|
||||
8432831256155652419,
|
||||
8368355871961019630,
|
||||
6670979618372292347,
|
||||
13946322022735355958,
|
||||
11653327786003412444,
|
||||
8911941857523270608,
|
||||
14005495020294378149,
|
||||
7052745365841946574,
|
||||
14947898973004813754,
|
||||
16568135084751874917,
|
||||
14416690837965125032,
|
||||
15250579260894613093,
|
||||
10390215563440607572,
|
||||
10539080371013975717,
|
||||
2553434971954616332,
|
||||
5946151574540099307,
|
||||
3953350499910303773,
|
||||
16353801647154993729,
|
||||
14581683459460399592,
|
||||
1588972894843982356,
|
||||
13601876592648600167,
|
||||
16416266883070977994,
|
||||
9498392293510493264,
|
||||
13935546522649706747,
|
||||
6020751534528485649,
|
||||
8481597454884198476,
|
||||
3376136817935597300,
|
||||
16450565490057008108,
|
||||
11565074623839806700,
|
||||
4890233796396413560,
|
||||
7215116870678099835,
|
||||
6873794952473427236,
|
||||
12300072587696359993,
|
||||
12162893891482918104,
|
||||
5465257053616860384,
|
||||
1622610263387597088,
|
||||
13686827634038573028,
|
||||
323412062311704186,
|
||||
12098218147116926368,
|
||||
11932768958909542210,
|
||||
4444153107121266078,
|
||||
9161358716497556452,
|
||||
9947823074072941469,
|
||||
16309853711454380872,
|
||||
10504119364825006378,
|
||||
7304017004164526840,
|
||||
2899661874339449941,
|
||||
15814184842154281937,
|
||||
7769082256869284807,
|
||||
17091389954059441018,
|
||||
16266438976026480979,
|
||||
3399909120097633104,
|
||||
17134297913307189661,
|
||||
7030596002635703563,
|
||||
247181462978570943,
|
||||
6993118257489773878,
|
||||
1300066214503768042,
|
||||
8616306703287618245,
|
||||
1444595249263426016,
|
||||
4472454400157367567,
|
||||
],
|
||||
[
|
||||
16870012156278751333,
|
||||
531833467239086523,
|
||||
9300020637154512591,
|
||||
10876403266138686713,
|
||||
11787037162931018360,
|
||||
16538542051640854716,
|
||||
2949365786808992369,
|
||||
200838742228975756,
|
||||
8948813227225445730,
|
||||
10860405833994886076,
|
||||
4982180702366509177,
|
||||
5541485968845342698,
|
||||
853747588266163105,
|
||||
9229530084210432146,
|
||||
10947913297977533433,
|
||||
1244374236106306927,
|
||||
9232078576388207554,
|
||||
5527939322396785193,
|
||||
7696495816285323401,
|
||||
8904890533379453265,
|
||||
8480684627479039053,
|
||||
368307738068001454,
|
||||
6340118528067380120,
|
||||
16831094406902436384,
|
||||
5305160523794712359,
|
||||
10004070766540006939,
|
||||
2318610231532354318,
|
||||
6228289580979833937,
|
||||
3413706597318350256,
|
||||
14521183780808125600,
|
||||
8905240684232440196,
|
||||
6051976334467601141,
|
||||
997466049696971043,
|
||||
10673900210924698162,
|
||||
8080663635672823570,
|
||||
16143246986091152429,
|
||||
3300934437120469004,
|
||||
12358684583582252763,
|
||||
3402331348166657827,
|
||||
13595117835485601528,
|
||||
13577678374328595748,
|
||||
8347496403565110819,
|
||||
7046818044845410377,
|
||||
838543581671692622,
|
||||
16423566748540790443,
|
||||
4821719899858903922,
|
||||
12202768873245030842,
|
||||
11112996853809213683,
|
||||
14379622223737851468,
|
||||
7168991259989620371,
|
||||
16516371120162298062,
|
||||
15768904307445868256,
|
||||
8154280165316852227,
|
||||
16841648413657914243,
|
||||
3860684121863922252,
|
||||
4560635471784971154,
|
||||
7158282956013622068,
|
||||
10365812987614738050,
|
||||
7890642237019126437,
|
||||
13638092628572997837,
|
||||
14796019704389458835,
|
||||
1273290748015117130,
|
||||
1176795631218840500,
|
||||
6137083668319746386,
|
||||
],
|
||||
[
|
||||
11820931779894469784,
|
||||
15136277269875643918,
|
||||
1632615076551529723,
|
||||
4430323096565861505,
|
||||
14135954698602281472,
|
||||
6412278352810143263,
|
||||
11785524538973515208,
|
||||
17872198660253372378,
|
||||
7321590440299771707,
|
||||
10783017979692218988,
|
||||
15746091964388443398,
|
||||
3258285182274634132,
|
||||
16921418972504038773,
|
||||
10232453762703303187,
|
||||
10926463029142964703,
|
||||
15108466217066884775,
|
||||
10751464182876849481,
|
||||
1900754345963399717,
|
||||
3424380236092961889,
|
||||
15836961247546890804,
|
||||
8124151540008929094,
|
||||
1716123330670750891,
|
||||
10253502390064916806,
|
||||
10350280256867581143,
|
||||
10584339840087513696,
|
||||
2251844348262642756,
|
||||
5165203963665674531,
|
||||
7556420914025941152,
|
||||
14715570898020776859,
|
||||
308630325998876035,
|
||||
10881885677771945928,
|
||||
6092365519022576559,
|
||||
10960750208698426147,
|
||||
6513460910848563992,
|
||||
4724146390064169895,
|
||||
6125334314524488599,
|
||||
11194397157478649499,
|
||||
7411374102826659960,
|
||||
8715426332997605026,
|
||||
7046906076992602354,
|
||||
16059272986481347448,
|
||||
12154129336412631215,
|
||||
2203988157688612704,
|
||||
11964328410181526149,
|
||||
16783977506495967848,
|
||||
2196724851160901293,
|
||||
9707361195379456616,
|
||||
12107810442518181902,
|
||||
16245560280933258534,
|
||||
735089856153651190,
|
||||
12667980741379685296,
|
||||
11976659714899734855,
|
||||
7714345689451818744,
|
||||
1838922122073170261,
|
||||
15035167043576194306,
|
||||
13198765821092057705,
|
||||
14290087918526366009,
|
||||
5792555790677224273,
|
||||
2313714371703668635,
|
||||
5879913901733308876,
|
||||
16179508217608549630,
|
||||
7181718019999081044,
|
||||
15777331336889182193,
|
||||
9272183542523540901,
|
||||
],
|
||||
[
|
||||
3046185151057768643,
|
||||
14999586703302978877,
|
||||
13016617089055366688,
|
||||
8101427684087419781,
|
||||
6240826148646721820,
|
||||
8269892959398732848,
|
||||
1307609977570482725,
|
||||
3146103343867840173,
|
||||
9586450071772290087,
|
||||
883546145042464039,
|
||||
12608000109279142266,
|
||||
14842973106852154561,
|
||||
8758836295588085341,
|
||||
6157186482470916499,
|
||||
5634623593539930052,
|
||||
4011391109192342465,
|
||||
252089486792519421,
|
||||
3211079009194937730,
|
||||
12304488700211518999,
|
||||
15695461864144928959,
|
||||
735639318468489544,
|
||||
4410058956507662326,
|
||||
1323285479418479885,
|
||||
3510608953685353427,
|
||||
15715296895112106230,
|
||||
3995833941249399976,
|
||||
5592511922822441728,
|
||||
2014379508941983134,
|
||||
3767549817103239211,
|
||||
12135306195399658233,
|
||||
11912764703813954387,
|
||||
12072295067365749250,
|
||||
9989979334209867805,
|
||||
10279700592288875857,
|
||||
17180330294388796088,
|
||||
581680140188195831,
|
||||
13185390910770158320,
|
||||
1480786962918473773,
|
||||
1137526092632836347,
|
||||
18089465931170292009,
|
||||
16006945081263834594,
|
||||
10670909949953786768,
|
||||
14574761639302612804,
|
||||
3143717041590487110,
|
||||
4714433656712106516,
|
||||
16732415614325784944,
|
||||
11144981911800849461,
|
||||
9068268952495590689,
|
||||
8146473186249219623,
|
||||
11291207280774372049,
|
||||
8487888294281363475,
|
||||
9086838583787313729,
|
||||
16954388340088140291,
|
||||
2135489908827437031,
|
||||
6018463847348107150,
|
||||
4498422873403632086,
|
||||
4767690060912814747,
|
||||
15780301696369031282,
|
||||
2488967008364257007,
|
||||
13920892508696217591,
|
||||
1687587573781656772,
|
||||
9675178683652863201,
|
||||
11324406578001815999,
|
||||
4228976538028331567,
|
||||
],
|
||||
[
|
||||
13924609616876551493,
|
||||
11147755785187061885,
|
||||
13092168412607830334,
|
||||
1122056342410353647,
|
||||
18146748013082870701,
|
||||
346060088367599844,
|
||||
13812010867645191279,
|
||||
504406042431043033,
|
||||
3222493086482886149,
|
||||
2477347116527048194,
|
||||
16229167715210064341,
|
||||
1381582240984556552,
|
||||
1981983069924379277,
|
||||
17296996880625752274,
|
||||
15689296760981280414,
|
||||
7154623696341899352,
|
||||
547285491505630409,
|
||||
3952248124965140480,
|
||||
9876781192270354538,
|
||||
14712400399965568809,
|
||||
6110890492936363585,
|
||||
6147339827009351917,
|
||||
2814931877793493925,
|
||||
15398170493100801629,
|
||||
5589314031846282669,
|
||||
6716683194641517943,
|
||||
14297939873221436852,
|
||||
7898996115215236681,
|
||||
16130345910674899169,
|
||||
13262143235009989280,
|
||||
6132121931715262458,
|
||||
13763963812999466126,
|
||||
5678139041278340963,
|
||||
7683187023717558620,
|
||||
2818448602564797489,
|
||||
7238872793005137867,
|
||||
17076056835961669551,
|
||||
15164919369839388812,
|
||||
12551309276841615101,
|
||||
16110780632881205055,
|
||||
3333579759449921317,
|
||||
40601572334588286,
|
||||
1712074107114000760,
|
||||
17334986079120239204,
|
||||
18314810228509582538,
|
||||
15350477369611077335,
|
||||
483704842904417018,
|
||||
11629959256108132178,
|
||||
5026536033685037585,
|
||||
556275634622862705,
|
||||
10206026998377231793,
|
||||
7940672859110387176,
|
||||
15599207977245592326,
|
||||
12763859418009364437,
|
||||
9013530784510263267,
|
||||
13952660324072064054,
|
||||
6527463565827187791,
|
||||
13300684702214000711,
|
||||
13614065249110795442,
|
||||
3882097314759228874,
|
||||
11901624115337304263,
|
||||
4603165982595088914,
|
||||
14027182079153010850,
|
||||
6292834061292910612,
|
||||
],
|
||||
[
|
||||
13415969423978073000,
|
||||
15984816522666103434,
|
||||
2652819057256759760,
|
||||
13621025970954576642,
|
||||
17449665072142616387,
|
||||
2605497450396760237,
|
||||
2730510600837337463,
|
||||
14785795532520840425,
|
||||
14938657157125707085,
|
||||
9011303197525585286,
|
||||
7263803361144685429,
|
||||
18134094269181316634,
|
||||
11161398315458363906,
|
||||
2893524915217510140,
|
||||
11543032553397817006,
|
||||
15816713703548814680,
|
||||
936191770742044571,
|
||||
8107399726839812303,
|
||||
7465519389244948553,
|
||||
10361884399467622288,
|
||||
15824431441299020940,
|
||||
12091629518780759593,
|
||||
4558438721296307423,
|
||||
13555890473828982007,
|
||||
16587759019945493860,
|
||||
2412077016767068627,
|
||||
9830609194755089279,
|
||||
3264443740839586061,
|
||||
17653890994902772286,
|
||||
3772083050313312581,
|
||||
7736380384575961560,
|
||||
4339139737758913996,
|
||||
10632771085655320231,
|
||||
11285161069857782675,
|
||||
10682185725861156935,
|
||||
13637965460951329980,
|
||||
4649344561846442339,
|
||||
12243470822564023182,
|
||||
3669339468858074705,
|
||||
6198269073190788754,
|
||||
9460527905908789128,
|
||||
9858505120448085116,
|
||||
5409940172565343524,
|
||||
7867268640165599320,
|
||||
8461123480813018984,
|
||||
17372600184640900943,
|
||||
7836103424799911754,
|
||||
6396276906594577713,
|
||||
3672488628096147826,
|
||||
14326625140932074604,
|
||||
4831191327853310068,
|
||||
8889797966048701450,
|
||||
1326857005228918419,
|
||||
16337461021431511547,
|
||||
13418379275080705069,
|
||||
12082996700572671516,
|
||||
16449704894881531984,
|
||||
14923027788355565995,
|
||||
8547791828218885799,
|
||||
14893932023895762368,
|
||||
7369376787490348042,
|
||||
5012733833855988234,
|
||||
14075011178452042417,
|
||||
10573894700557322171,
|
||||
],
|
||||
],
|
||||
[
|
||||
[
|
||||
1742532124052654467,
|
||||
11967260896221628601,
|
||||
7164205857163048909,
|
||||
809534787767160907,
|
||||
9909420791491645007,
|
||||
12126342127885623034,
|
||||
17923189097659138712,
|
||||
5928814002664070936,
|
||||
8560083204044088212,
|
||||
17411824408910571758,
|
||||
8863551055862989127,
|
||||
11119275295977703800,
|
||||
17583371545237180824,
|
||||
12095934975286897442,
|
||||
12958033763224041640,
|
||||
13270504314151635314,
|
||||
2456880627446127921,
|
||||
4451545295463721916,
|
||||
6268066738683655454,
|
||||
11772498000016058949,
|
||||
4123460670492272064,
|
||||
3701207562325584661,
|
||||
908408386271318093,
|
||||
2709175176654747444,
|
||||
9006545962788494332,
|
||||
7370624428636005747,
|
||||
17521483724668444084,
|
||||
18229567195295402798,
|
||||
4347671518863650257,
|
||||
18246377464295426097,
|
||||
4259051261706305040,
|
||||
2067080301851755164,
|
||||
7859088528902513789,
|
||||
7854654128819978086,
|
||||
1216030243531466191,
|
||||
14763093689341304995,
|
||||
1007999414859646207,
|
||||
2094657247121490203,
|
||||
13766997540106969045,
|
||||
7162825543639524618,
|
||||
10831570360831795991,
|
||||
15816761341358764433,
|
||||
14434804918032708126,
|
||||
14120812743157381482,
|
||||
8086479632455681168,
|
||||
4764601050213262762,
|
||||
681952129739260857,
|
||||
7213384526472144975,
|
||||
11866391103176903891,
|
||||
1629451314563510778,
|
||||
4145271991793565767,
|
||||
195442615079529527,
|
||||
14920636409777197788,
|
||||
3246236324255893399,
|
||||
16904213395482842837,
|
||||
3837194334247967091,
|
||||
8717852727742508324,
|
||||
1553148405430043724,
|
||||
16951703481381774464,
|
||||
15843193418920071477,
|
||||
12309712557884273432,
|
||||
12925573032594108612,
|
||||
5082870261613725953,
|
||||
5695297769753158695,
|
||||
],
|
||||
[
|
||||
2321317948404450511,
|
||||
1690929461481693223,
|
||||
5790862553086425076,
|
||||
3831996358965766015,
|
||||
5015090086762085776,
|
||||
4124427119168405360,
|
||||
3922206345093411535,
|
||||
6095962377070474522,
|
||||
13978110275238658500,
|
||||
16983473964374000251,
|
||||
5869403875434980156,
|
||||
15078678498642844340,
|
||||
9556710579694672296,
|
||||
14583140214087300984,
|
||||
17890653399731240071,
|
||||
14355915781299387729,
|
||||
13496513445026544319,
|
||||
4179030626971037619,
|
||||
7886116688869835054,
|
||||
1032512653546172102,
|
||||
12279556070489957177,
|
||||
18406392320738512665,
|
||||
18013165103942671844,
|
||||
9792582845781379318,
|
||||
9229934059385004114,
|
||||
12833918208592925403,
|
||||
14841086554108225200,
|
||||
13137274196078793342,
|
||||
16425890809400729170,
|
||||
543748023531482226,
|
||||
12911341824757765867,
|
||||
6130769529492555516,
|
||||
17464364513773308529,
|
||||
8135024473411487036,
|
||||
8199952496605296533,
|
||||
17000930268239208350,
|
||||
11365150528198970098,
|
||||
3910609664632887504,
|
||||
17015736495475695160,
|
||||
15830184836163169787,
|
||||
779275451287805172,
|
||||
9736929721512721880,
|
||||
10080335247001726566,
|
||||
15227726128874100012,
|
||||
1393190085778692529,
|
||||
9302463979857124089,
|
||||
14146909236891718692,
|
||||
6360433927422710088,
|
||||
1068109297951168379,
|
||||
14970291317558514300,
|
||||
18251834742899831204,
|
||||
8337441932856161550,
|
||||
8975764957939407830,
|
||||
16723933604537809656,
|
||||
14181029625715872807,
|
||||
8964235540437354159,
|
||||
7158553321742828616,
|
||||
2352463493722653363,
|
||||
3655135188814725195,
|
||||
10346795930764610188,
|
||||
6386044658556652360,
|
||||
16515536397065299998,
|
||||
2892694445438428269,
|
||||
990540318472389857,
|
||||
],
|
||||
[
|
||||
14849741581356091611,
|
||||
13953047772310366332,
|
||||
10633261504326595800,
|
||||
5733708757747985702,
|
||||
2556390231574911162,
|
||||
10626917001579573345,
|
||||
10633509801202537940,
|
||||
1686911392781141410,
|
||||
5639129121430519872,
|
||||
2985632805118924439,
|
||||
11423786337194206539,
|
||||
14618590950960551662,
|
||||
3062699519276168020,
|
||||
11566866649592852901,
|
||||
16633187448966215935,
|
||||
8834693927249245073,
|
||||
872180695736142129,
|
||||
10358972481939290612,
|
||||
9801768435872660888,
|
||||
14596026222927642280,
|
||||
2829854436173100462,
|
||||
13378812551658757200,
|
||||
17503623502361840337,
|
||||
4897629636187619580,
|
||||
1968018396796990407,
|
||||
5516379291872860712,
|
||||
14575598225767317841,
|
||||
6465311422799298575,
|
||||
6705914018783256253,
|
||||
9078148970688696767,
|
||||
12268291135902803407,
|
||||
3721447081500569193,
|
||||
8521178113410734205,
|
||||
265511362559666379,
|
||||
7110064706961992866,
|
||||
8464788157842975536,
|
||||
12486131210347647095,
|
||||
9171851522810154092,
|
||||
376253057309073521,
|
||||
1954075553568124000,
|
||||
16233425577355320017,
|
||||
12891218820996378536,
|
||||
3118609758744696679,
|
||||
17458579353753392132,
|
||||
12317353753597871574,
|
||||
13862746674503522835,
|
||||
11722307545198100664,
|
||||
13591439439148402981,
|
||||
13951670265160855627,
|
||||
9267431564010354000,
|
||||
17286601790357282787,
|
||||
9350425316280663882,
|
||||
9697163920834931593,
|
||||
10529134727302704903,
|
||||
15720421915194499552,
|
||||
13128851462050784572,
|
||||
3942937226007518902,
|
||||
9591161745312598409,
|
||||
3556667090572903329,
|
||||
16189383950414263960,
|
||||
428210347219958151,
|
||||
2795766616179392388,
|
||||
6411935405426735200,
|
||||
3704905749615557748,
|
||||
],
|
||||
[
|
||||
18016845575650718377,
|
||||
10276613593154530350,
|
||||
10640091575455315298,
|
||||
1221661866903636906,
|
||||
14365332218531812981,
|
||||
13544364184423968337,
|
||||
12461384581630362830,
|
||||
997242709366829489,
|
||||
13622312128853790825,
|
||||
8072786099502180970,
|
||||
8158663003131535196,
|
||||
9367349114229485217,
|
||||
9461383047484438844,
|
||||
2357242016491822549,
|
||||
12755474712998509663,
|
||||
9768458552620615774,
|
||||
4823809135465785107,
|
||||
2768308362137845456,
|
||||
3012883833502871742,
|
||||
6006390139055901721,
|
||||
8028824787201366396,
|
||||
7482246287535462233,
|
||||
17523133526919708402,
|
||||
2894859123557708669,
|
||||
17951399237407115697,
|
||||
15377386222094209036,
|
||||
17836204611672644168,
|
||||
12413029210400035613,
|
||||
8615403705959355031,
|
||||
6554537249093636763,
|
||||
17919666759153485338,
|
||||
4144167350879495211,
|
||||
983027456863392320,
|
||||
7724128919774820252,
|
||||
576099001832218419,
|
||||
12029185248175818703,
|
||||
8258924543961817504,
|
||||
9491805652083256113,
|
||||
11142164475553972407,
|
||||
4450491108098721368,
|
||||
3697489051241740604,
|
||||
4326070667946664398,
|
||||
14654980775062674677,
|
||||
7164393759970224779,
|
||||
6763621709896032169,
|
||||
4935071616379639239,
|
||||
15556627948684922602,
|
||||
16150662434123662642,
|
||||
15498002696461857780,
|
||||
2383098017664197063,
|
||||
15229497595935011607,
|
||||
13845162191801702183,
|
||||
9290775142145407982,
|
||||
5362909295303904739,
|
||||
136843864736711469,
|
||||
13057412136774387333,
|
||||
11060519906354337380,
|
||||
691208480072817593,
|
||||
5547215092743600855,
|
||||
9624087952374212334,
|
||||
15245986767878542936,
|
||||
6789734335256095458,
|
||||
8487287581332487525,
|
||||
11194381536812049039,
|
||||
],
|
||||
[
|
||||
14207499017760900374,
|
||||
14255228210761312180,
|
||||
12306900719525692526,
|
||||
10853161885522385616,
|
||||
13742277460701985870,
|
||||
15424334704761443115,
|
||||
12623321747943706707,
|
||||
17007035125949577966,
|
||||
3870822864152586264,
|
||||
7103311141794728179,
|
||||
17896833069581151675,
|
||||
2526832568692956128,
|
||||
3720866533358506086,
|
||||
17480154805493686218,
|
||||
15930467061899039405,
|
||||
17864964785419997219,
|
||||
17532658365710397682,
|
||||
10912855042689744124,
|
||||
12513916581746061895,
|
||||
936935090392388560,
|
||||
13347203578323605449,
|
||||
14118791656941390670,
|
||||
12677494567154340266,
|
||||
11651086515179508131,
|
||||
16543173710358132147,
|
||||
11277211671730677128,
|
||||
16874253062173679499,
|
||||
4485773131975877215,
|
||||
12833420558295790217,
|
||||
5368804114189644308,
|
||||
15899843864346960792,
|
||||
4508630623041454643,
|
||||
4116501047047189033,
|
||||
3529911464254879893,
|
||||
8491613217643546421,
|
||||
15578530492689893350,
|
||||
10967593072213245006,
|
||||
13526615399064781462,
|
||||
12005253469821520463,
|
||||
8951873683334129929,
|
||||
43518471402116944,
|
||||
3676389635540963717,
|
||||
13317191900089677469,
|
||||
5496688994596819218,
|
||||
17550867738688964971,
|
||||
14086963724633041570,
|
||||
249330153296993310,
|
||||
11307936793550706388,
|
||||
8712714125162934974,
|
||||
3337072566160888171,
|
||||
6995842130683462841,
|
||||
7215747697135091496,
|
||||
1546719819110900761,
|
||||
12849678058830286779,
|
||||
6314765524031697288,
|
||||
12419321953553988797,
|
||||
13650838063968793391,
|
||||
7958321890726488655,
|
||||
9015242661226385446,
|
||||
9769997204575419550,
|
||||
12190760804169107899,
|
||||
7798029174446179423,
|
||||
3173677334948865050,
|
||||
11797262036420789896,
|
||||
],
|
||||
[
|
||||
10460283023326496648,
|
||||
9437377412875693802,
|
||||
9921446917421829860,
|
||||
14599931889493045991,
|
||||
4268961049545963187,
|
||||
10848046681051236983,
|
||||
8578515789525175315,
|
||||
18290826087628927976,
|
||||
16703578029935928755,
|
||||
18246642560319906381,
|
||||
18310894933839866902,
|
||||
18189899495436209883,
|
||||
12245776650375205206,
|
||||
16950137755876869212,
|
||||
9294919412670909687,
|
||||
17653999331604650245,
|
||||
15507904384226397701,
|
||||
3149575904724991841,
|
||||
11773323204420371092,
|
||||
3635993261633686332,
|
||||
14760776134300129234,
|
||||
16413291273644443483,
|
||||
17247602357216070292,
|
||||
8546494309023155788,
|
||||
11896551736492725008,
|
||||
2574543911485860628,
|
||||
3418106081237248405,
|
||||
15876995998136068791,
|
||||
17745810661562334105,
|
||||
364732677102562669,
|
||||
6499259181196633520,
|
||||
17619214483464993001,
|
||||
1755375795884948711,
|
||||
15557023861829569960,
|
||||
2694521391989289169,
|
||||
3464852456067954004,
|
||||
15646777514161168311,
|
||||
12660697365465988554,
|
||||
7447210235083966536,
|
||||
4810973013228237082,
|
||||
6795350034557181509,
|
||||
11381865254854243368,
|
||||
7863880077475816918,
|
||||
13421787618868641563,
|
||||
9679728077436941505,
|
||||
17234589101232576295,
|
||||
16231530893888101938,
|
||||
6580659246984078181,
|
||||
9987433780337895460,
|
||||
8696404782017294090,
|
||||
12360032408990421426,
|
||||
6870496981670331011,
|
||||
12033158465144986566,
|
||||
17737575184655076961,
|
||||
4096614345953467746,
|
||||
10474845723594311031,
|
||||
3072380023051822731,
|
||||
12934338818107793655,
|
||||
6904395950861413644,
|
||||
13081228377736438990,
|
||||
4449691796442505131,
|
||||
14530599618042092556,
|
||||
11883685823810881117,
|
||||
14397843411117512826,
|
||||
],
|
||||
],
|
||||
];
|
||||
|
||||
pub const ZOBRIST_BLACK_TURN: ZobristHash = 10021213122433903175;
|
||||
|
||||
pub const ZOBRIST_CASTLE_WH_K: usize = 0;
|
||||
pub const ZOBRIST_CASTLE_WH_Q: usize = 1;
|
||||
pub const ZOBRIST_CASTLE_BL_K: usize = 2;
|
||||
pub const ZOBRIST_CASTLE_BL_Q: usize = 3;
|
||||
|
||||
pub const ZOBRIST_CASTLES: [ZobristHash; 4] = [
|
||||
2292886189061561677,
|
||||
1107787351814947557,
|
||||
2627339987452959789,
|
||||
9362433047582633881,
|
||||
];
|
||||
|
||||
pub const ZOBRIST_EN_PASSANT: [ZobristHash; 8] = [
|
||||
13446489326168201208,
|
||||
16561127554913736295,
|
||||
706457826239777201,
|
||||
6940085010112087595,
|
||||
16571136595117891883,
|
||||
14041807556703902103,
|
||||
8978789431920423267,
|
||||
5492414369570698233,
|
||||
];
|
||||
|
|
|
|||
49
src/zobrist.rs
Normal file
49
src/zobrist.rs
Normal file
|
|
@ -0,0 +1,49 @@
|
|||
//! Functions related to Zobrist hashes.
|
||||
|
||||
use crate::board::*;
|
||||
|
||||
pub type ZobristHash = u64;
|
||||
|
||||
pub fn get_new_game_hash() -> ZobristHash {
|
||||
return
|
||||
get_piece_hash(WHITE, ROOK, A1)
|
||||
^ get_piece_hash(WHITE, KNIGHT, B1)
|
||||
^ get_piece_hash(WHITE, BISHOP, C1)
|
||||
^ get_piece_hash(WHITE, QUEEN, D1)
|
||||
^ get_piece_hash(WHITE, KING, E1)
|
||||
^ get_piece_hash(WHITE, BISHOP, F1)
|
||||
^ get_piece_hash(WHITE, KNIGHT, G1)
|
||||
^ get_piece_hash(WHITE, ROOK, H1)
|
||||
^ get_piece_hash(WHITE, PAWN, A2)
|
||||
^ get_piece_hash(WHITE, PAWN, B2)
|
||||
^ get_piece_hash(WHITE, PAWN, C2)
|
||||
^ get_piece_hash(WHITE, PAWN, D2)
|
||||
^ get_piece_hash(WHITE, PAWN, E2)
|
||||
^ get_piece_hash(WHITE, PAWN, F2)
|
||||
^ get_piece_hash(WHITE, PAWN, G2)
|
||||
^ get_piece_hash(WHITE, PAWN, H2)
|
||||
^ get_piece_hash(BLACK, PAWN, A7)
|
||||
^ get_piece_hash(BLACK, PAWN, B7)
|
||||
^ get_piece_hash(BLACK, PAWN, C7)
|
||||
^ get_piece_hash(BLACK, PAWN, D7)
|
||||
^ get_piece_hash(BLACK, PAWN, E7)
|
||||
^ get_piece_hash(BLACK, PAWN, F7)
|
||||
^ get_piece_hash(BLACK, PAWN, G7)
|
||||
^ get_piece_hash(BLACK, PAWN, H7)
|
||||
^ get_piece_hash(BLACK, ROOK, A8)
|
||||
^ get_piece_hash(BLACK, KNIGHT, B8)
|
||||
^ get_piece_hash(BLACK, BISHOP, C8)
|
||||
^ get_piece_hash(BLACK, QUEEN, D8)
|
||||
^ get_piece_hash(BLACK, KING, E8)
|
||||
^ get_piece_hash(BLACK, BISHOP, F8)
|
||||
^ get_piece_hash(BLACK, KNIGHT, G8)
|
||||
^ get_piece_hash(BLACK, ROOK, H8)
|
||||
^ ZOBRIST_CASTLES[ZOBRIST_CASTLE_WH_K]
|
||||
^ ZOBRIST_CASTLES[ZOBRIST_CASTLE_WH_Q]
|
||||
^ ZOBRIST_CASTLES[ZOBRIST_CASTLE_BL_K]
|
||||
^ ZOBRIST_CASTLES[ZOBRIST_CASTLE_BL_Q]
|
||||
}
|
||||
|
||||
pub fn get_piece_hash(color: Color, piece: Piece, square: Square) -> ZobristHash {
|
||||
ZOBRIST_PIECES[color][piece][square as usize]
|
||||
}
|
||||
Reference in a new issue