Anodos 1.2.0 - new version chess engine

Anodos - UCI chess engine

github:https://github.com/tomcant/anodos/releases

Author: Tom Cant (London, United Kingdom)

Anodos 1.2.0 what's new?

This release brings the largest strength increase the engine has seen so far, driven mostly by the introduction of HCE terms.

Additions

• Handcrafted evaluation:
  • King safety with pawn-shield scoring.
  • Doubled, isolated, and passed pawns.
  • Open and half-open files for rooks.
  • General piece mobility scoring.
• Late move reductions to speed up search in unpromising branches.

Enhancements

• Think for longer in complex positions.
• Reuse the transposition table across moves.
• Stop searching beyond mate when working with a time limit.
• Play forced moves immediately instead of spending time searching.

SPRT result vs 1.1.0

Results of 1.2.0 vs 1.1.0 (10+0.1, NULL, 64MB, 8moves_v3.pgn):
Elo: 432.56 +/- 65.28, nElo: 629.13 +/- 38.07
LOS: 100.00 %, DrawRatio: 7.50 %, PairsRatio: 73.00
Games: 320, Wins: 284, Losses: 13, Draws: 23, Points: 295.5 (92.34 %)
Ptnml(0-2): [0, 2, 12, 19, 127], WL/DD Ratio: 11.00
LLR: 2.96 (100.7%) (-2.94, 2.94) [0.00, 5.00]

Anodos 1.1.0 vs other engines:

Bytechess 1.3.0	3.5/4	+3	4 games
Chessnut 1.0	2.5/4	+1	4 games
Kreveta 2.2.2	2/4	+0	4 games
Prune 3.1.0	0/4	-4	4 games
Gyatso 1.1.0	0/4	-4	4 games
Critter 1.6a	0/4	-4	4 games
Lozza 10	0/4	-4	4 games
Chess-3 3.0	0/4	-4	4 games
Rusty-rival 1.0.20 rc5	2/2	+2	2 games
Gc-engine 1.2 JA	2/2	+2	2 games
Annie 1.2	2/2	+2	2 games
RuthIron18.9.6	2/2	+2	2 games
Byte 2.0	2/2	+2	2 games
Rusty-rival 1.0.21 rc6	1.5/2	+1	2 games
Rusty-rival 1.0.23	1/2	+0	2 games
Raphael 2.2 JA	0/2	-2	2 games
Grail 1.0.4	0/2	-2	2 games
Monty 20260111	0/2	-2	2 games
Caligula 3.1 JA	0/2	-2	2 games
Stockfish dev-20260101	0/2	-2	2 games
Yakka 1.5	0/2	-2	2 games

Anodos 1.2.0 download

#chessengine  #Anodos