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TCEC round 1 concluded, Rybka and Equinox held to draw

TCEC round 1 of stage 1 has been completed. All but two 3000+ engines – Houdini, Critter, Gull, Komodo, Vitruvius, and Stockfish won their games at the start of the computer chess championship.

The biggest surprise of the round was Rybka 4.1, that was held to a draw by the 300+ ELO lower rated Scorpio 2.75. TCEC does not seem to be a lucky competition for Rybka, as in the first edition of the event it lost to Houdini, and later on was defeated again by the same engine 23.5 – 16.5 in a long match. This time Rybka could not outplay Scorpio and it will be interesting to see whether Scorpio’s version is playing above it’s initially assigned strength of 2787, or Rybka 4.1 is overrated.

Gaviota 0.86b3 brought the second surprise of the round, as it held the 3077 rated Equinox to a draw. Moreover, Gaviota did it with black, rightly evaluating a complex endgame.
All other games finished with expected results, as Houdini with version 3.0 PRO made its first step for defending the title.
Replay all TCEC games with analysis here / Official website of TCEC

 

TCEC round 1 results

Engine ELO Engine ELO Results
Chiron 1.5 2990  - Arasan 15.1 2692 1_0
Critter 1.6a 3104  - Texel 1.01 2789 1_0
Dirty 190113 2745  - Gull II 3083 0-1
Equinox 1.65 3077  - Gaviota 0.86b3 2700 ½-½
Exchess 6.71b 2678  - Hiarcs 14.0b 2970 0-1
Houdini 3.0 3191  - Minkochess 1.3 2865 1_0
Nebula 2.0b 2422  - Junior 13.3 2896 0-1
Nemo 1.01b 2862  - Komodo 4534 3126 0-1
Octochess 4741 2696  - Vitruvius 1.19 3070 0-1
Quazar 0.4 2905  - Danasah 5.0 2504 1_0
Redqueen 1.13 2626  - Hannibal 1.3 2955 0-1
Scorpio 2.75 2787  - Rybka 4.1 3101 ½-½
Shredder 12.0 2960  - Prodeo 1.83c 2645 1_0
Spike 1.4 2926  - Rodent 0.17 2613 1_0
Stockfish 2.31 3086  - Crafty 23.5 2774 1_0
The Baron 3.34b 2551  - Protector 1.5b2 2921 0-1

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