Release V1.11

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

Download V1.11

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.
Capturing a castling enabled rook and then recapturing with another rook keeps the castling rights.

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.
The firmware is not compatible with the Olimex H405 mainboard variant that has a GigaDevice GD32F405 controller instead of an STMicroelectronics STM32F405.

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.