Engine Match: Rybka 4.1 x64 vs Stockfish 18 x64 (AVX2-1Pct)

Match Overview

#	Engine	Time Control	Hash	CPU	Score	Wins	Losses	Draws	Elo	Elo Δ
1	Rybka 4.1 x64 (Blitz)	Blitz: 3m + 2s	128 MB	1	62.0	49	25	26	2460	-30
2	Stockfish 18 x64 (AVX2-1Pct)	Bullet: 2s + 0.1s	8 MB	1	38.0	25	49	26	2352	+30

Performance Summary

#	Engine	Score	Games	Performance Elo	Rating	Elo Δ	Score %
1	Rybka 4.1 x64	62.0	100	2429.3	2460.0	-30.6	62.0%
2	Stockfish 18 x64 (AVX2-1Pct)	38.0	100	2382.6	2352.0	+30.6	38.0%

Head-to-Head Game Results

#	Pairing	Score	W–L–D	Score %	Elo Diff
1	Rybka 4.1 x64 - Stockfish 18 x64 (AVX2-1Pct)	62.0 / 100	49–25–26	62%	+85
2	Stockfish 18 x64 (AVX2-1Pct) - Rybka 4.1 x64	38.0 / 100	25–49–26	38%	-85

Game-by-game result strings

Rybka 4.1 x64 - Stockfish 18 x64 (AVX2-1Pct):

1=110011100=1=1=1=1==01=0=111010111=01101=1=111=0=00=0=00101=1==100==0=1101011==1101=1111011=0111111

Stockfish 18 x64 (AVX2-1Pct) - Rybka 4.1 x64:

0=001100011=0=0=0=0==10=1=000101000=10010=0=000=1=11=1=11010=0==011==1=0010100==0010=0000100=1000000