Arcanum is a free UCI chess engine under the MIT license.
Rating CEDR=2923
v.1.12:
This version adds/improves:
Extension for single moves and pawn to 7th rank
Reverse Futility Pruning
Futility Pruning
SEE (Static Exchange Evaluation)
Tuning of HCE weights.
Loaded through hceWeights.dat (configurable in uci options)
HCE is now default instead of NNUE.
Support ucinewgame.
This was not implemented previously which had a large impact on TT performance.
The ucinewgame now clears the TT and resets the search generation.
Fix a bug where stopping search could result in random moves.
Improved time management
Arcanum 1.11.1 - results
| Lambergar 0.3.1c | 13/16 | +10 | 16 Games |
| Lynx 1.0.1 | 9.5/14 | +5 | 14 Games |
| Protej 20231118d | 9.5/14 | +5 | 14 Games |
| Kuma 1.2 | 3.5/14 | -7 | 14 Games |
| Freda 0.99 | 13/13 | +13 | 13 Games |
| Adachess 4.0 | 12/12 | +12 | 12 Games |
| Z5 3.0 | 1/12 | -10 | 12 Games |
| Dragon free | 0.5/12 | -11 | 12 Games |
| Eubos 2.25 | 10/10 | +10 | 10 Games |
| Lux 4.0 | 8/10 | +6 | 10 Games |
| Reckless 0.3.0 | 6.5/10 | +3 | 10 Games |
| Critter 1.6a | 4/10 | -2 | 10 Games |
| RukChess 3.0.17 | 2/10 | -6 | 10 Games |
| Carp 3.0.1 | 0.5/10 | -9 | 10 Games |
| Pawn 2.0 | 0/10 | -10 | 10 Games |
| SF-Pro 19.11.2023 | 0.5/4 | -3 | 4 Games |
| Incognito 4 | 0.5/4 | -3 | 4 Games |
| Stockfish 20231120 | 0/4 | -4 | 4 Games |
| Raid 3.1 | 0/4 | -4 | 4 Games |
| Polyfish 231120 | 0/4 | -4 | 4 Games |
| Patzer AI X-256 | 0/4 | -4 | 4 Games |

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