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Release V1.11

V1.11 was released on 2017-Jun-17. You can download the release ZIP file (5 MB):

Changes from V1.10

  • There is a PC version available, including pre-built Windows binaries in both 32 and 64 bit. This engine uses the Winboard protocol.
  • The hash tables are not completely cleared before a move.
  • Added some openings for passive knowledge (Shirov Gambit, Elephant Gambit, Budapest Gambit).

Known issues

All versions

  • In pawn endgames with opposite coloured bishops, the king positions can overrule a pawn loss.
  • In KR:KB, the correct defender edge is not highlighted enough over its adjacent rim squares, which occasionally might lose a game.
  • With the 50 moves rule, checkmate is not given precedence over draw in the 50th move.

Embedded target

  • In complicated middlegame positions, the pre-search alone can take 10 seconds.
  • Manually saving and loading a game in game-in or tournament mode adds Fischer delay and player bonus to the player’s clock.
  • Undoing or redoing moves within the opening book range deletes the little ‘b’ that denotes book moves.
  • When entering a new position after undoing or redoing moves, the move list in the main screen is not cleared.
  • Building the firmware with GCC 7.0 or higher fails because of false positive warnings that are treated as errors.

Winboard version

  • The “quick reply” feature does not always work.

Note: issues are fixed with new releases only – there are no backports. However, if an issue is found, it will be listed for the previous releases where applicable.