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Chess engine: Obsidian dev. 13.19

on


Obsidian, an UCI chess engine written in c++
Rating Chess Engines Diary CEDR=3705
Author: gabe
GNU General Public License v3.0


Obsidian 13 - results:
OpponentScore+-Games
PlentyChess 3.0.0119.5/240-1240 Partii
Alexandria 7.0.058.5/109+8109 Partii
Chess-System-Tal-255.5/97+1497 Partii
Berserk 1345.5/95-495 Partii
Ethereal 14.2545.5/83+883 Partii
Titan 1.1.039.5/68+1168 Partii
RubiChess 2024011234.5/65+465 Partii
Uralochka 3.41a JA38/64+1264 Partii
Lizard 10.536.5/64+964 Partii
Caissa 1.1934/63+563 Partii
Caissa 1.20 JA23.5/49-249 Partii
Seer 2.8.030/48+1248 Partii
Viridithas 13.0.028.5/46+1146 Partii
Stockfish 16.118/44-844 Partii
Clover 6.223/40+640 Partii
JigSaw 5.917/38-438 Partii
Motor 0.7.019.5/37+237 Partii
Clover 7.0 JA22.5/36+936 Partii
Peacekeeper 3.0121.5/35+835 Partii
Caissa 1.2017/32+232 Partii
Lizard 10.419/31+731 Partii
Viridithas 14.0.017/29+529 Partii
Yuliana 5.011.5/28-528 Partii
Stormphrax16.5/26+726 Partii
Stockfish 202408038/26-1026 Partii
Koivisto 9.216.5/25+825 Partii
Clover 7.1 JA14/25+325 Partii
Motor 0.6.013.5/19+819 Partii

Obsidian 13 - Tournament Results:
2024.07.16 NewEnginesTest 202447.5/65+30
2024.07.18 NewEnginesTest 202440.5/56+25
2024.07.20 NewEnginesTest 202439/55+23
2024.07.22 NewEnginesTest 202443/54+32
2024.07.26 NewEnginesTest 202433/50+16
2024.07.28 NewEnginesTest 202447.5/64+31
2024.07.03 ArenaTopEnginesTest 202410.5/21+0
2024.07.03 NewEnginesTest 202446/68+24
2024.07.05 1LeagueCEDR.ed.05.2024 202416.5/30+3Rank 4
2024.07.06 NewEnginesTest 202439.5/58+21
2024.07.08 NewEnginesTest 202437.5/49+26
2024.08.11 NewEnginesTest 202441/58+24
2024.08.15 NewEnginesTest 202443.5/62+25
2024.08.17 NewEnginesTest 202451/72+30
AquariumSwissTournament.08.08.20245/8+2Rank 4
CEDRCup.28.08.2024.PlentyObsidian11.5/22+1Winner of the Match
CEDRCup.08.2024.PlentyChessObsidian18.5/37+0Draw in the match
2024.08.04.NewEnginesTest 202437/54+20
2024.08.12.FritzStrongEnginesTest30.5/56+5
2024.09.08.NewEnginesTest 202427/44+10
2024.09.17.NewEnginesTest 202427/46+8


Neural network
Obsidian evaluates positions with a neural network trained on Lc0 data.



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