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Igel 3.0.0

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@vshcherbyna vshcherbyna released this 04 Apr 18:56
· 60 commits to master since this release
3.0.0
1f2116f
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Learn about vigilant mode.

What's new:

  • Train a new network using Igel 2.6.0 (HCE) and Igel 2.9.0 (NNUE) data: ign-1-139b702b
  • Remove 'EvalFile' option - as of Igel 3.0.0 the network file is always embedded in the executable
  • Fix in check extensions
  • Use incbin on Linux to inject network file into the binary
  • Tune null move prunning conditions
  • Tune probcut prunning conditions
  • Tune quiets prunning
  • Fix bogus condition for history calculation
  • Implement more aggressive null move prunning
  • Stop extension of captures
  • Prevent explosion of history extensions
  • Implement better time management for sudden death time control
  • Count not played quiets for LMP prunning
  • Remove dummy 100 multiplier for history ordering calculation
  • Fix compilation issues with gcc 10 and Android NDK's Clang
  • Remove unused counter move table
  • Fix out of boundary access for history array
  • Fix issue with singular extensions - reported by ChizhovVadim (author of CounterGo chess engine)
  • Fix crash when 'ucinewgame' command is not issued - reported by Ipmanchess
  • Fix crash when thread position is not initialized - reported by Ipmanchess

Regression run against Igel 2.9.0:

Short Time Control No Increment

ELO   | 115.05 +- 3.88 (95%)
SPRT  | 10.0+0.0s Threads=1 Hash=8MB
LLR   | 0.00 (-2.94, 2.94) [0.00, 0.00]
Games | N: 20652 W: 9913 L: 3314 D: 7425

Short Time Control With Increment

ELO   | 75.88 +- 3.53 (95%)
SPRT  | 10.0+0.1s Threads=1 Hash=8MB
LLR   | 0.00 (-2.94, 2.94) [0.00, 0.00]
Games | N: 20904 W: 8061 L: 3567 D: 9276

Long Time Control No Increment

ELO   | 83.16 +- 4.04 (95%)
SPRT  | 60.0+0.0s Threads=1 Hash=64MB
LLR   | 0.00 (-2.94, 2.94) [0.00, 0.00]
Games | N: 13508 W: 4814 L: 1641 D: 7053

Long Time Control With Increment

ELO   | 58.22 +- 3.81 (95%)
SPRT  | 60.0+0.6s Threads=1 Hash=64MB
LLR   | 0.00 (-2.94, 2.94) [0.00, 0.00]
Games | N: 13540 W: 4023 L: 1775 D: 7742
Assets 7
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