NEWS: Please check the general remarks as well! 2012.02.06 Games added - Fritz 13 vs Shredder 12 and Chiron 1.1a - 100 games. No change in rating. I started to add the missing games of Fritz 13 with the missing 25 openings. 2012.02.05 Games added - Junior 13 vs Fritz 13 - 150 games Junior gained one Elo, Fritz lost one Elo ... 2012.02.04 Engine added - Junior 13 - 2700 games The inital rating is +16 Elo to its predecessor. 2012.01.31 Engine added - Nemo 1.0.1 - 2700 games 2636 Elo as a start. Not bad for rudimentary pondering and a bad time management! 2012.01.28 IPON changes! From now on the IPON will be played with 75 openings. As a start I played the top 19 (Top 20 - F13) with the new set to have some basis for the rating. Here is a comparision of the results: Top Engines with 50 openings: 1 Houdini 2.0 STD 3015 12 12 3100 2 Critter 1.4a 2975 13 13 2600 3 Komodo 4 2972 13 13 2700 4 Deep Rybka 4.1 2954 10 10 3900 5 Stockfish 2.2.2 JA 2952 13 13 2500 6 Chiron 1.1a 2833 11 11 2800 7 Naum 4.2 2826 7 8 7000 8 Fritz 13 32b 2819 11 11 2800 9 Deep Shredder 12 2800 7 7 8100 10 Gull 1.2 2795 10 10 4000 11 Deep Sjeng c't 2010 32b 2788 9 9 5000 12 Spike 1.4 32b 2785 9 9 4100 13 Protector 1.4.0 2759 9 10 4200 14 Hannibal 1.1 2758 10 10 3500 15 spark-1.0 2755 9 9 4700 16 HIARCS 13.2 MP 32b 2748 9 9 4500 17 Deep Junior 12.5 2732 10 10 3800 18 Zappa Mexico II 2716 6 7 9400 19 Deep Onno 1-2-70 2684 8 8 6000 20 Strelka 2.0 B 2671 10 10 4100 Top Engines with 75 openings (ELO change at the end of each line) 1 Houdini 2.0 STD 3017 11 11 4000 +2 2 Critter 1.4a 2975 11 11 3500 = Komodo 4 SSE42 2975 11 11 3600 +3 4 Deep Rybka 4.1 2952 9 9 4800 -2 5 Stockfish 2.2.2 JA 2950 11 11 3400 -2 6 Chiron 1.1a 2830 10 10 3700 -3 7 Naum 4.2 2826 7 7 7900 = 8 Fritz 13 32b 2819 11 11 2800 (not tested) 9 Deep Shredder 12 2800 7 7 9000 = 10 Gull 1.2 2792 9 8 4900 -3 11 Deep Sjeng c't 2010 32b 2789 8 8 5900 +1 12 Spike 1.4 32b 2786 9 9 5000 +1 13 Protector 1.4.0 2761 9 9 5100 +2 14 spark-1.0 2759 8 8 5600 +4 (!) 15 Hannibal 1.1 2755 9 9 4400 -3 16 HIARCS 13.2 MP 32b 2749 9 9 5400 +1 17 Deep Junior 12.5 2731 9 9 4700 -1 18 Zappa Mexico II 2717 6 7 10300 +1 19 Deep Onno 1-2-70 2684 8 8 6900 = 20 Strelka 2.0 B 2668 9 9 5000 -3 Spark is the winner. It is the only engine which gained one position in ranking! More games, smaller error bars ... but there is a downside: The older engines can not be compared that good with the current ones anymore. The only thing you can look at is the rating - regarding this the IPON - for the time being - is exactly the same as the other lists. As soon as new engines enter it will come back to better comparision possibilities! SSE 4.2 is handled as default as of today! If there is an SSE4.2 version it will be tested! It is the same as for 64 bit engines. 2012.01.21 Engine added - Tornado 4.88 SSE42 - 2400 games Very nice 55 Elo jump! Stockfish 2.2.1 is substituted with 2.2.2 according to the authors ... (http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=444266&t=41999) 2012.01.15 Games added - Stockfish 2.2.1 JA SSE42 - 200 games 2 opponents added, Fritz 13 and Critter 1.4a (Loss on time bug fixed!) No change in rating. 2012.01.08 Engine added - Stockfish 2.2.1 JA SSE42 - 2200 games An initial 13 Elo increase from the last release. I had to remove the 100 game match Stockfish 2.2.1 vs Critter 1.4. There is an obvious bug in Critter which makes it loose 25% of the games on time. This bug is only showing to that extend in matches against Stockfish 2.2.1. As the author already found the problem and is mentiond a possible fix soon, I am waiting for that to finish the games. 2012.01.02 I had to stop testing Stockfish 2.2 as this version had an obvious timing bug. The IPON is accepting losses on time as an "engine feature" which belongs to the playing strenth in a tourney, but it makes no sence to leave an engine in the list its rating would be worse than the predecessor because of a very high loss on time rate ... ! ... Have a look for older news in the Archive!
© 2011/2012 by Ingo Bauer 