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Release V1.41

V1.41 was released on 2020-Aug-29 and is the current stable version. You can download the release ZIP file (4 MB):

Changes from V1.40

  • Improved fail-high handling at root.
  • Increased check deepening from two to three moves.
  • Endgames with a minor piece ahead but no pawns are recognised as drawish.
  • Improved mate score reliability from hashtables.
  • More opening knowledge.

UCI versions

  • Using “searchmoves” does not block the internal opening book.


  • Changed time measurement to native Windows functions.


  • The Android build chain has been updated from NDK r21 to r21d.
  • Dropped binaries for x86 CPUs. Only ARM is supported.

Raspberry Pi

  • Rolled back the GCC version from 8.3.0 (Buster) to 6.3.0 (Stretch).

Known issues

There are no known issues in V1.41.

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.