src/bitboard.c


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#include "bitboard.h"

position starting_position() {
  return (position) {
    .bitboards = {
      1152921504606846976ULL,
      576460752303423488ULL,
      9295429630892703744ULL,
      4755801206503243776ULL,
      2594073385365405696ULL,
      71776119061217280ULL,
      16ULL,
      8ULL,
      129ULL,
      66ULL,
      36ULL,
      65280ULL
    },
    .castling =
      (1 << WHITE_SHORT_CASTLE) |
      (1 << WHITE_LONG_CASTLE) |
      (1 << BLACK_SHORT_CASTLE) |
      (1 << BLACK_LONG_CASTLE),
  };
}