chess:programming:polyglot_book_format:castle
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Chess - Programming - Polyglot Book Format - Castle
castle is the exclusive or of entries from the RANDOM_CASTLE sub-array.
The offsets are computed as:
| White can castle short | 0 |
| white can castle long | 1 |
| black can castle short | 2 |
| black can castle long | 3 |
If none of these flags apply then castle=0.
NOTE: These flags are all true in the starting position and are only updated after the appropriate King, Rook or Castling moves.
chess/programming/polyglot_book_format/castle.1641908837.txt.gz · Last modified: 2022/01/11 13:47 by peter