Since you’re here...

We hope you will consider supporting us today. We need your support to continue to exist, because good entries are more and more work time. Every reader contribution, however big or small, is so valuable. Support "Chess Engines Diary" even a small amount– and it only takes a minute. Thank you.
============================== My email: jotes@go2.pl



Chess Engine: Altair 2.0.0

Altair is a uci chess engine that succeeds my old python engine Antares.
Rating CEDR=2496 author: Alexander Tian

v.2.0.0:
This is the second version of Altair. There have been around 150-180 ELO rating gains from changes in its search, and the rest 250+ have been from tuning the evaluation and new evaluation features.

A huge thanks to Gedas, as many of the rating gains are the result of tuning using his texel tuner.

8 + 0.08 Versus Altair1.0.0
Score of Altair1.5.6 vs Altair1.0.0: 89 - 1 - 10 [0.940]
...      Altair1.5.6 playing White: 46 - 1 - 4  [0.941] 51
...      Altair1.5.6 playing Black: 43 - 0 - 6  [0.939] 49
...      White vs Black: 46 - 44 - 10  [0.510] 100
Elo difference: 478.0 +/- 121.0, LOS: 100.0 %, DrawRatio: 10.0 %```

60 + 0.6 Versus Glaurung2.2 1CPU
Score of Altair1.5.6 vs glaurung-w64: 155 - 150 - 82 [0.506]
...      Altair1.5.6 playing White: 75 - 77 - 42  [0.495] 194
...      Altair1.5.6 playing Black: 80 - 73 - 40  [0.518] 193
...      White vs Black: 148 - 157 - 82  [0.488] 387
Elo difference: 4.5 +/- 30.8, LOS: 61.3 %, DrawRatio: 21.2 %
The engine should be around 2800-2850 in CCRL ratings.

github:https://github.com/Alex2262/AltairChessEngine/releases/tag/v2.0.0

Comments