Houdini 3 Pro x64 - Rybka 4.1 SSE42 x64

1   Houdini 3 Pro x64          +52/=33/-15 68.50%   68.5/100
2   Rybka 4.1 SSE42 x64   +15/=33/-52 31.50%   31.5/100

Compare these results to the Houdini 2 Pro x64 - Rybka 4.1 SSE42 x64 match, where Houdini won by 12 points instead of 37.

Games here: http://goo.gl/QJmt2

Fritz 13 - Rybka 4.1 SSE42 x64

1   Rybka 4.1 SSE42 x64 1CPU   +45/=45/-10   67.5/100
2   Fritz 13                                     +10/=45/-45   32.5/100

Download the games here: http://goo.gl/oB1x6

Rybka 4.1 SSE42 x64 - Vitruvius 1.11C HEM x64 Match Results

1   Rybka 4.1 SSE42 x64 1CPU        +25/=59/-16   54.5/100
2   Vitruvius 1.11C HEM x64 1CPU    +16/=59/-25   45.5/100

Download the games here: http://goo.gl/hVv8A

Rybka 4.1 SSE42 x64 - Strelka 5.1 x64 Match Results

1 Strelka 5.1 x64                         56.0/100  +29/=54/-17
2 Rybka 4.1 SSE42 x64 1CPU   44.0/100  +17/=54/-29

As of round 89, Rybka was only 5 points behind. Strelka scored 7 more wins in the last 11 games.

Download the games here: http://goo.gl/YkxjO

Junior 13 x64 - Rybka 4.1 SSE42 x64 Match Results

1   Rybka 4.1 SSE42 x64 1CPU  +64/=28/-8  78.0/100
2   Deep Junior 13 64-bit              +8/=28/-64  22.0/100

Download the games here: http://goo.gl/ieF4l

Rybka 4.1 SSE42 x64 - Saros 3 x64 Match Results

1   Rybka 4.1 SSE42 x64 1CPU   +39/=48/-13  63.0/100
2   DeepSaros ver.3.0 x64            +13/=48/-39  37.0/100

Download the games here: http://goo.gl/hZbDq

Critter 1.4a SSE4 - Rybka 4.1 SSE42 Match Results

1   Critter 1.4a 64-bit SSE4 1CPU      +29/=47/-24 52.50%   52.5/100
2   Rybka 4.1 SSE42 x64 1CPU         +24/=47/-29 47.50%   47.5/100

It's interesting to see which engines understand which positions. Rounds 99 and 100 are especially interesting for me. It's a King's Indian, Classical: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 *. In this match, it was Rybka who scored the full point as White and Black. Usually the win goes to White, but here, Rybka showed its understanding was superior.

Download the games here: http://goo.gl/LA15i

Rybka 4.1 SSE42 x64 - Stockfish 2.2.2 SSE42 x64 Match Results

1   Stockfish 2.2.2 JA SSE42 1CPU    +26/=51/-23 51.50%   51.5/100
2   Rybka 4.1 SSE42 x64 1CPU          +23/=51/-26 48.50%   48.5/100

Download the games here: http://goo.gl/u7xQV

Komodo64 4 SSE - Rybka 4.1 SSE42 x64 Match Results

1   Komodo64 SSE Version 4 1CPU   +29/=52/-19 55.00%   55.0/100
2   Rybka 4.1 SSE42 x64 1CPU          +19/=52/-29 45.00%   45.0/100

What was interesting to me is that Komodo was +9 over Rybka in the first 50 games and Houdini was drawn vs Rybka at that point. Even so, Houdini finished with the better score (+12 vs +10).

Download the games here: http://goo.gl/2zuoK

Houdini 2.0c Pro x64 - Rybka 4.1 x64 SSE42 Match Results

1   Houdini 2.0c Pro x64 1CPU     +36/=40/-24 56.00%   56.0/100
2   Rybka 4.1 SSE42 x64 1CPU   +24/=40/-36 44.00%   44.0/100

If the match were to have stopped half way through, it would have been in a draw. Houdini got its +12 score in the final 50 rounds.

Download the games here: http://goo.gl/7I2f3