moves

Documentation

Overview

Pre-calculated move bitboards, including "fancy magic" bitboards for sliding pieces

Index

• Variables
• func CalculateBishopMoves(square int, cb *board.Board) uint64
• func CalculateRookMoves(square int, cb *board.Board) uint64

Variables

var BishopMagicAttacks [64][512]uint64 = buildBishopMagicBB()

var BishopMagics = [64]uint64{
	0x89a1121896040240, 0x2004844802002010, 0x2068080051921000, 0x62880a0220200808,
	0x4042004000000, 0x100822020200011, 0xc00444222012000a, 0x28808801216001,
	0x400492088408100, 0x201c401040c0084, 0x840800910a0010, 0x82080240060,
	0x2000840504006000, 0x30010c4108405004, 0x1008005410080802, 0x8144042209100900,
	0x208081020014400, 0x4800201208ca00, 0xf18140408012008, 0x1004002802102001,
	0x841000820080811, 0x40200200a42008, 0x800054042000, 0x88010400410c9000,
	0x520040470104290, 0x1004040051500081, 0x2002081833080021, 0x400c00c010142,
	0x941408200c002000, 0x658810000806011, 0x188071040440a00, 0x4800404002011c00,
	0x104442040404200, 0x511080202091021, 0x4022401120400, 0x80c0040400080120,
	0x8040010040820802, 0x480810700020090, 0x102008e00040242, 0x809005202050100,
	0x8002024220104080, 0x431008804142000, 0x19001802081400, 0x200014208040080,
	0x3308082008200100, 0x41010500040c020, 0x4012020c04210308, 0x208220a202004080,
	0x111040120082000, 0x6803040141280a00, 0x2101004202410000, 0x8200000041108022,
	0x21082088000, 0x2410204010040, 0x40100400809000, 0x822088220820214,
	0x40808090012004, 0x910224040218c9, 0x402814422015008, 0x90014004842410,
	0x1000042304105, 0x10008830412a00, 0x2520081090008908, 0x40102000a0a60140,
}

var BishopOneBitCounts [64]int

var BishopRelevantOccs [64]uint64

var King = makeKingBBs()

var Knight = makeKnightBBs()

var Pawn = makePawnBBs()

var RookMagicAttacks [64][4096]uint64 = buildRookMagicBB()

TODO: only a few squares have 4096 possible blocker configurations. Try to use [64][]uint64 slices instead

var RookMagics = [64]uint64{
	0xa8002c000108020, 0x6c00049b0002001, 0x100200010090040, 0x2480041000800801,
	0x280028004000800, 0x900410008040022, 0x280020001001080, 0x2880002041000080,
	0xa000800080400034, 0x4808020004000, 0x2290802004801000, 0x411000d00100020,
	0x402800800040080, 0xb000401004208, 0x2409000100040200, 0x1002100004082,
	0x22878001e24000, 0x1090810021004010, 0x801030040200012, 0x500808008001000,
	0xa08018014000880, 0x8000808004000200, 0x201008080010200, 0x801020000441091,
	0x800080204005, 0x1040200040100048, 0x120200402082, 0xd14880480100080,
	0x12040280080080, 0x100040080020080, 0x9020010080800200, 0x813241200148449,
	0x491604001800080, 0x100401000402001, 0x4820010021001040, 0x400402202000812,
	0x209009005000802, 0x810800601800400, 0x4301083214000150, 0x204026458e001401,
	0x40204000808000, 0x8001008040010020, 0x8410820820420010, 0x1003001000090020,
	0x804040008008080, 0x12000810020004, 0x1000100200040208, 0x430000a044020001,
	0x280009023410300, 0xe0100040002240, 0x200100401700, 0x2244100408008080,
	0x8000400801980, 0x2000810040200, 0x8010100228810400, 0x2000009044210200,
	0x4080008040102101, 0x40002080411d01, 0x2005524060000901, 0x502001008400422,
	0x489a000810200402, 0x1004400080a13, 0x4000011008020084, 0x26002114058042,
}

var RookOneBitCounts [64]int

var RookRelevantOccs [64]uint64

var Sliding = makeSlidingAttackBBs()

Functions

func CalculateBishopMoves

func CalculateBishopMoves(square int, cb *board.Board) uint64

func CalculateRookMoves

func CalculateRookMoves(square int, cb *board.Board) uint64

Captures and protection are included in move gen.