Tournament Info
Top15 round-robin tournament of free engines only, using Stefan Pohl's unbalanced 3-move book
Chess324xxl_big+090_+119.pgn played reversed sides per pairing.
Time Control: game in 2 minutes plus 1 second increment, 2'+1"
Hardware: Intel i7 12700, i9 10900 and AMD Ryzen 5900X (performance roughly equalised via
power settings)
CuteChess GUI: Concurrency limited to number of actual cores (P cores in case of i7 12700)
Each engine 512MB hash, 1 thread, ponder off
Each pairing 100 openings
Adjudication: Syzygy 5-men only - no eval based adjudication.
Endgame tablebases: Syzygy 5-men.
Ratings calculated with Ordo.
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# PLAYER : RATING ERROR POINTS PLAYED (%) W D L D(%) OppAvg CFS(%)
1 Stockfish 17.1 : 3859 9 2135.0 3000 71.2 1327 1616 57 53.9 3697 100
2 Obsidian 16 : 3797 7 1891.0 3000 63.0 1010 1762 228 58.7 3701 100
3 PlentyChess 5.0.0 : 3762 8 1743.0 3000 58.1 854 1778 368 59.3 3703 100
4 Berserk 13 : 3748 7 1681.0 3000 56.0 779 1804 417 60.1 3704 93
5 Caissa 1.22 : 3741 7 1648.5 3000 55.0 726 1845 429 61.5 3705 78
6 Alexandria 8.0.0 : 3736 7 1629.5 3000 54.3 724 1811 465 60.4 3705 54
7 Integral V7 : 3736 7 1627.0 3000 54.2 753 1748 499 58.3 3705 100
8 Viridithas 17.0.0 : 3714 7 1533.0 3000 51.1 591 1884 525 62.8 3707 97
9 Horsie 1.1 : 3704 7 1489.0 3000 49.6 579 1820 601 60.7 3707 96
10 Clover 8.1 : 3695 7 1448.0 3000 48.3 529 1838 633 61.3 3708 100
11 Stormphrax 6.0.0 : 3666 7 1321.0 3000 44.0 449 1744 807 58.1 3710 100
12 Starzix 6.0 : 3651 7 1254.5 3000 41.8 390 1729 881 57.6 3711 74
13 RubiChess 20240817 : 3647 7 1239.0 3000 41.3 356 1766 878 58.9 3711 100
14 Quanticade Orion 2.0 : 3624 7 1141.5 3000 38.0 277 1729 994 57.6 3713 67
15 Motor 0.8.0 : 3622 8 1130.5 3000 37.7 256 1749 995 58.3 3713 95
16 Renegade 1.2.0 : 3611 8 1088.5 3000 36.3 286 1605 1109 53.5 3713 ---
Total: 24'000 games played by 16 programs (games available on request)
White wins: 9'368 (39.0%)
Black wins: 518 (2.2%)
Draws: 14'114 (58.8%)
White score: 68.4%
Updated: 2025-05-26