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Polaris 1.4.0
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@Ciekce Ciekce released this 01 Apr 13:28
· 186 commits to main since this release
v1.4.0
d680858
  • added history (finally)
  • implemented chess960
  • fixed longstanding bug with evaluation scaling in endgames
  • various fixes, tweaks and internal changes

1.4.0 is more of a bugfix and feature release than pure strength improvement, unlike 1.3.0.
nevertheless, it is significantly stronger than 1.3.0, especially at LTC:

STC (10+0.1):

Score of polaris_1.4.0 vs polaris_1.3.0: 157 - 40 - 53  [0.734] 250
...      polaris_1.4.0 playing White: 90 - 16 - 19  [0.796] 125
...      polaris_1.4.0 playing Black: 67 - 24 - 34  [0.672] 125
...      White vs Black: 114 - 83 - 53  [0.562] 250
Elo difference: 176.3 +/- 41.9, LOS: 100.0 %, DrawRatio: 21.2 %

LTC (2'+1):

Score of polaris_1.4.0 vs polaris_1.3.0: 131 - 17 - 52  [0.785] 200
...      polaris_1.4.0 playing White: 78 - 4 - 18  [0.870] 100
...      polaris_1.4.0 playing Black: 53 - 13 - 34  [0.700] 100
...      White vs Black: 91 - 57 - 52  [0.585] 200
Elo difference: 225.0 +/- 46.4, LOS: 100.0 %, DrawRatio: 26.0 %

Elo testing done with the UHO_4060_v2 book.
Fewer games run than normal due to CPU time constraints (and LTC testing takes forever).

Full Changelog: v1.3.0...v1.4.0

Assets 6
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