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New version chess engine: Tcheran 2.5

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Tcheran - UCI chess engine  Author: Jonathan Gilchrist
Rating Chess Engines Diary CEDR=2245

If you want to know what the ranking of the Tcheran engine is, we encourage you to visit the website with the monthly updated CEDR ranking - RATING page.

v.2.5:
Fix not storing moves that caused beta cutoffs in the TT (~50 Elo)
Pack midgame and endgame PhasedEval i16s into a single i32 (~19 Elo)
Do PVS by searching first move with the full window and the remainder with a zero-window (~4 Elo)
Perform all TT updates in the same place in negamax (~1 Elo)


Tcheran 2.3 - results:
Alouette 0.1.76/6+66 Games
Piglet 1.3.64/4+44 Games
GitChess 1.04/4+44 Games
Sloth 1.83.5/4+34 Games
Oxidation 0.7.03.5/4+34 Games
Akira CE 1.1.13.5/4+34 Games
Eubos 3.52.5/4+14 Games
Mayhem 8.22.5/4+14 Games
OpenTal 1.1 JA2/4+04 Games
Fatalii 0.7.01.5/4-14 Games
Rodent NN JA0.5/4-34 Games
Chess-Rikus 1.466 JA2/2+22 Games
Javelin 1.0.02/2+22 Games
Topas 1.3.32/2+22 Games
Alibaba 1.40 JA2/2+22 Games
Throttle 3.21.5/2+12 Games
Peripheral 1.1.31.5/2+12 Games
Jackychess 24.041/2+02 Games
Weiawaga 5.0.00.5/2-12 Games
Arcanum 2.10/2-22 Games
Critter 1.6a0/2-22 Games

 


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