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games-board/stockfish

Free UCI chess engine, claimed to be the strongest in the world

Screenshots

  • stockfish-11
    ~amd64 ~x86
    cpu_flags_arm_v7 cpu_flags_x86_avx2 cpu_flags_x86_popcnt cpu_flags_x86_sse debug general-32 general-64 +optimize

    View      Download      Browse     License: GPL-3   
    Overlay: gentoo (distro)
  • stockfish-10
    amd64 x86
    cpu_flags_arm_v7 cpu_flags_x86_avx2 cpu_flags_x86_popcnt cpu_flags_x86_sse debug general-32 general-64 +optimize

    View      Download      Browse     License: GPL-3   
    Overlay: gentoo (distro)
  • Stockfish-4
    ~amd64 ~x86
    debug optimization popcnt

    View      Download      Browse     License: GPL-3   
    Overlay: seeds (layman)

USE Flags

cpu_flags_arm_v7
* This flag is undocumented *
cpu_flags_x86_avx2
* This flag is undocumented *
cpu_flags_x86_popcnt
* This flag is undocumented *
cpu_flags_x86_sse
* This flag is undocumented *
debug
Global: Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
general-32
* This flag is undocumented *
general-64
* This flag is undocumented *
+optimize
* This flag is undocumented *
optimization
Global: Adds several supplemental CXXFLAGS/LDFLAGS for optimization that upstream endorses. Absense of this USE flag does not strip user's *FLAGS
popcnt
* This flag is undocumented *