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Alexandria 7.0.0
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@PGG106 PGG106 released this 25 May 18:22
· 84 commits to master since this release
v7.0.0
2d628c8

LTC Progression test

Elo   | 26.46 +- 3.35 (95%)
Conf  | 60.0+0.60s Threads=1 Hash=64MB
Games | N: 5000 W: 561 L: 181 D: 4258
Penta | [0, 114, 1915, 448, 23]

Progression test was run on the 8moves_v3.epd book.

Search Changes

  • A new fully staged movepicker.
  • Improved lmrDepth formula.
  • Improved SEE accuracy.
  • Fixed a bug that would render TT moves illegal when unpacking them.
  • Introduced upcoming draw detection via cuckoo tables.
  • Faster makemove.
  • Faster evaluation achieved by removing one accumulator copy and saving the eval in the TT during QS.
  • General simplifications and improvements.

NNUE Changes

  • The net shipped with this release has a new arch, the L1 size was increased to 1536 and 8 output buckets were added,
    resulting in a final arch of (768->1536)x2->1x8
  • Several hyperparameters improvements in the net training

Me thanking people

A big thank you as always to anyone who contributed to Alex, either with hw or patches.
The Alex project would like to officially state we don't like Viren.

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