Komodo 2.03 release is imminent

[Don]

I remember McEnroe having a stink in a match against Connors once and refusing to play. Connors came to the net and told him he would knock his block off if he didn't.

McEnroe stared at him for maybe two seconds and promptly got into position to serve.

My favorite was a match with McEnroe and Lendl in Dallas indoors I think. It was really ugly. They both appeared to be in a sour mood and Lendl at one point packed up his bag and started heading out when some big shot talked to him in private and evidently convinced him to stay and finish the match. At one point McEnroe came to net and hit a short volley and Lendl went right at him with one of his big forehands and knocked him to the ground. While lying on the ground McEnroe just glared at Lendl and Lendl really looked uncomfortable and nervous but you could see he was pretending to be calm.

[Trahald]

+1

I enjoy a good king-hunt, but I think there are sufficient engines like that out there if one is interested in that type of thing, I don't believe Komodo is any slouch in this aspect of the game in any case.

Personally I get far more pleasure out of watching Komodo squash Houdini or Rybka positionally by virtue of a superior evaluation.

As good as Stockfish and Critter are I don't think they can torture their opposition the way Komodo can! Please don't change the style!

EDIT** Incidentally I'd also love to see Gaviota TB support as part of a multi-core version. Keep up the good work!

[tomgdrums]

I agree that Karpov got the short end of the stick. Karpov was a true champion! He always played and never ducked a challenge.

To put it bluntly Fischer was a coward AND the WORST chess champion of all time!

Hello Tom,

Worst? Coward?

I seem to recall more than one chess champion ducking a challenge. It is called fear. Even two of the ones I admire the most - Capablanca and Alekhine - instituted conditions after they became champions to make beating them more difficult. That tradition lingers to this day incidentally.

Max Euwe, to his credit, did not duck Alekhine for the re-match so as far as world champions go he was special.

I guess I am not so concerned about the machinations as I am about the games they left behind and even though much of Fischer's chess legacy is above my understanding, worst world champion pales in comparison to those games and ideas he left behind.

Just my two cents is all...

Later.

I don't think he was a coward, he was just crazy and paranoid. He was truly a broken person and it was incredibly sad how it all turned out.

His career in chess was way too short when he stopped playing, but he did change chess as much or more than anyone before him in my opinion. Certainly he changed it in the U.S. which did not care about chess until Bobby came along. If it were not for him, I might not even be a computer chess programmer, I was in high school at the time he was playing in the world championship match and benefited over the years from the attention he brought to chess.

I feel really badly for Karpov - who was never given the opportunity to win the championship fair and square. It would have been better to lose than to be world champion but have everyone say that it's only because Fischer wouldn't play. So just by not playing Karpov Fischer managed to dishonor him and minimizing his accomplishments. I think those two could have played some great matches.

As I replied to Roger's post, Fischer's games were great but everyone acquiesced to his demands and wants and he thanked them and chess by quitting and running away. Fischer had problems and the attitude of "his games and his chess are what important" are exactly what caused everyone to give into his whims instead of trying to maybe help him earlier in his life.

I know he brought a lot of people TO chess but I also think his later behavior caused some people to look askance at chess.

He was a horrible champion.

Great player but a crappy champion.

I agree with everything you said - it's exactly how I feel. I have always been irked when certain people get extra consideration because they happen to be especially good. The average Joe would be booted out of any tournament or match behaving like he did. I remember seeing John McEnroe getting away with much more than I think anyone else would have been allowed at the time because he happened to be the dominant player at the time. It's just people bowing to pressure - had they been tough on Fischer like they should have, they would have had to put up with some heat and they couldn't handle it.

And the sad thing is what if someone (or a few people) had called Fischer out early in his life? Maybe just maybe he wouldn't have gone in to seclusion. Maybe he could have been helped!

Maybe he would not have had to run from the very country that so truly wanted to adopt and embrace him.

[tomgdrums]

Larry and I both have the same philosophy about how we want Komodo to play chess. We both want the program to be impressive in terms of playing strength and we want it to play as much like humans as we can. Other than that, we are not desperate to make it play any particular way.

We know that many users will prefer an aggressive style but that there are many players who really like Komodo's current style.

Variety is the spice of life. Komodo is great just the way it is.

Thank your for saying that. I think more people like Komodo's playing style than not by far from the comments I have received in public and in private, but there will always be a few who don't. But that is normal, it would be boring if we all liked the same exact thing.

Komodo definitely has some different evaluations. Which is nice! It is also working great now with the Shredder GUI. I don't really do much engine vs. engine stuff. I mostly use for analysis, opening study and for sparring partners. (which is why it would be neat to see some sort of limit strength option for Komodo---I would gladly pay for that.)

[jpqy]

I hope Don get Komodo SMP ready when next year AMD Komodo cpu come out

http://www.amdzone.com/phpbb3/search.ph ... rds=komodo

Great result i see on the IPON testings!
So..we will see soon a Komodo 2.03 with SSE4-JA release now,then we can start testing!

JP.

[Thomas Lagershausen]

[quote="Don
Larry and I both have the same philosophy about how we want Komodo to play chess. We both want the program to be impressive in terms of playing strength and we want it to play as much like humans as we can. Other than that, we are not desperate to make it play any particular way.

We know that many users will prefer an aggressive style but that there are many players who really like Komodo's current style.

Most of your points do not accurately describe Komodo by the way. I have seen it many times do all the things you say it cannot or will not do. For example I found a small PGN file of Komodo games and found that it castled long 53 times and this was out of book. It is quite good at pawn storm attacks and has specific code to make it do that. It has even done that when it was unsound so there goes your theory about it never playing risky moves.[/quote]

Thx for sharing your philosophy with us, but it is a clear gap between it and the reality.

Human chess at the top is differnt as the playingstyle of Komodo.

Look at one of the latest games of superstar Magnus Carlsen.

He castle long because he is ahead in devopment and so there is no danger for his king on the queeenside.

You didn´t find 10.0-0-0 under Komodos eight best moves.

See the printout of Komodo 2.03 64bit in a multipv-analysis:

[d]rn1qk1nr/pp2bpp1/2p3p1/3p4/3P1B2/2N1P3/PPQ2PPP/R3K1NR w KQkq - 0 10

---------------------------------------------------------------------------
23 38:14 1.890.199.653 852.635 -0,05 f2f3 Sg8f6 Lf4g3 Le7d6 Sg1h3 OO OO Sb8a6 a2a3 Sa6c7 Sh3f4 Tf8e8 Ta1e1 Dd8d7 Sf4d3 Ta8d8 Dc2a4 Td8a8 Da4c2
23 38:14 1.890.199.653 823.723 -0,04 Lf4e5 Sg8f6 Sg1f3 Sb8d7 a2a3 OO OO Tf8e8 h2h3 Ta8c8 Tf1d1 Le7f8 Le5f4 Sd7b6 Dc2b3 Lf8d6 Lf4xd6 Dd8xd6 Db3b4 Dd6c7 Db4a5 Sb6c4 Da5xc7 Tc8xc7 b2b3 Sc4d6 Sf3e5
23 38:14 1.890.199.653 950.610 -0,04 Ta1c1 Sg8f6 Sg1f3 OO OO Sb8d7 a2a3 Sd7b6 Dc2b3 Le7d6 h2h3 Tf8e8 Tf1e1 Dd8e7 Lf4xd6 De7xd6 Tc1c2 Ta8c8 Db3b4 Dd6xb4 a3xb4 Sb6c4 Te1a1 a7a6 b2b3
23 38:14 1.890.199.653 1.281.369 -0,01 Sg1e2 Sg8f6 Ta1d1 Sb8d7 OO OO Tf1e1 Tf8e8 Se2c1 Dd8b6 Sc1d3 Sf6h5 Lf4e5 Sh5f6 Le5g3 Sf6e4 Te1e2 Db6a5 Lg3f4 Ta8d8 f2f3 Se4d6 a2a3 Da5c7 e3e4 d5xe4
23 38:14 1.890.199.653 999.461 -0,01 Ta1d1 Sg8f6 Sg1f3 OO OO Tf8e8 Sf3e5 Sb8a6 h2h3 Sa6c7 Dc2b3 Ta8b8 e3e4 a7a5 Tf1e1 Le7b4 f2f3 Lb4d6 Lf4g3 Sf6h5 Lg3h2 Sh5f6 Db3b6
23 38:14 1.890.199.653 921.901 0,00 a2a3 Sb8d7 Sg1f3 Sg8f6 OO Sd7b6 Tf1e1 OO Te1e2 Tf8e8 Ta1e1 Dd8d7 h2h3 Ta8d8 Lf4e5 Dd7e6 Sf3g5 De6d7 e3e4 d5xe4 Sc3xe4 Sf6xe4 Sg5xe4 Dd7d5 Se4c3 Dd5c4 b2b3
23 38:14 1.890.199.653 1.040.599 +0,01 Sg1f3 Sb8d7 a2a4 a7a5 Dc2b3 Dd8b6 Db3xb6 Sd7xb6 OO Sg8f6 h2h3 Sb6c4 b2b3 Sc4d6 Sf3g5 Sf6h5 Lf4h2 OO Tf1c1 Sd6f5 Sg5f3 Sh5f6 Lh2c7 Sf5d6 Tc1c2
23 38:14 1.890.199.653 823.717 +0,03 h2h3 Sg8f6 Sg1f3 OO OO Sb8d7 Tf1e1 Tf8e8 Ta1c1 Sd7b6 Dc2b3 Le7d6 Sf3e5 Ld6xe5 Lf4xe5 Sf6d7 Le5h2 Dd8e7 Lh2f4 Ta8c8 Lf4g3 Sd7f6 Lg3e5 Tc8d8 e3e4 d5xe4

[Event "5th Kings Tournament"]
[Site "Medias ROU"]
[Date "2011.06.11"]
[Round "1"]
[White "Carlsen, Ma"]
[Black "Nakamura, Hi"]
[Result "1-0"]
[BlackElo "2774"]
[Time "09:44:25"]
[WhiteElo "2000"]
[TimeControl "4200"]
[Termination "normal"]
[PlyCount "76"]
[WhiteType "human"]
[BlackType "program"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Bf4 c6 6. Qc2 Bg4 7. e3 Bh5 8.
Bd3 Bg6 9. Bxg6 hxg6 10. O-O-O Nf6 11. f3 Nbd7 12. Nge2 b5 13. e4 b4 14.
Na4 dxe4 15. fxe4 Qa5 16. Kb1 O-O 17. h4 Rfe8 18. e5 Nd5 19. h5 g5 20. h6
g6 21. Bc1 N7b6 22. Nc5 Bxc5 23. dxc5 b3 24. Qxb3 Qxc5 25. Nd4 Rxe5 26. Nf3
Re2 27. Nxg5 Qe7 28. Qd3 Rf8 29. Rdf1 f5 30. g4 Na4 31. Qd4 Qe5 32. Qxe5
Rxe5 33. gxf5 gxf5 34. Nf3 Re7 35. Rfg1+ Kh7 36. Rg7+ Kh8 37. Rhg1 Rfe8 38.
Nh4 Rxg7 1-0

The difference of the chessphilosophy between M Carlsen and Komodo is evident.

10.O-O-O never came in the consideration of Komodo in the multipv-analysis.

This difference is a enormous gap of chessunderstanding between human and machine.

Is it not possible to close this gap?

By the way i am a big fan of your chessprograms.

I loved the games i played against Socrates 3.0

Greetings

[Albert Silver]

You didn´t find 10.0-0-0 under Komodos eight best moves.

See the printout of Komodo 2.03 64bit in a multipv-analysis:

[d]rn1qk1nr/pp2bpp1/2p3p1/3p4/3P1B2/2N1P3/PPQ2PPP/R3K1NR w KQkq - 0 10

The difference of the chessphilosophy between M Carlsen and Komodo is evident.

10.O-O-O never came in the consideration of Komodo in the multipv-analysis.

It also was not in the top eight moves of Houdini and Critter.

[Thomas Lagershausen]

After analysing the position over 1 hour, it is the best move for Shredder 12, on a Quad core machine.

FEN: rn1qk1nr/pp2bpp1/2p3p1/3p4/3P1B2/2N1P3/PPQ2PPP/R3K1NR w KQkq - 0 10

DeepShredder 12:
1/2 00:00 26 151 -0,33 Lf4xb8 Ta8xb8
1/2 00:00 69 401 +0,63 Sg1f3
2/6 00:00 565 3.284 +0,30 Sg1f3 Sb8d7
3/6 00:00 2.129 12.377 +0,51 Sg1f3 Sg8f6 OO Sb8d7
4/6 00:00 3.868 22.488 +0,51 Sg1f3 Sg8f6 OO Sb8d7
5/14 00:00 10.113 53.792 +0,48 Sg1f3 Sb8a6 a2a3 Sg8f6 OO OO
6/13 00:00 15.429 82.069 +0,50 Sg1f3 Sb8a6 a2a3 Sg8f6 OO OO h2h3
7/14 00:00 36.774 181.152 +0,50 Sg1f3 Sb8d7 OO Sg8f6 a2a4 Sd7b6 e3e4 OO
8/16 00:00 70.182 320.465 +0,38 Sg1f3 Sb8d7 OO Sg8f6 a2a4 OO h2h3 Le7b4 Sc3a2 Lb4a5
9/24 00:00 123.156 492.624 +0,41 Sg1f3 Sb8d7 OO Sg8f6 a2a4 OO a4a5 Sf6h5 Lf4e5 a7a6 h2h3
10/22 00:00 249.854 761.750 +0,35 Sg1f3 Sb8d7 OO Sg8f6 a2a4 a7a5 e3e4 d5xe4 Sc3xe4 OO Tf1e1 Le7b4 Te1e2 Sf6d5
11/23 00:00 516.088 1.100.400 +0,29 Sg1f3 Sb8d7 OO Sg8f6 h2h3 OO Lf4g3 Sd7b6 Sf3e5
11/24 00:00 917.472 1.305.081 +0,32 Sg1e2 Sg8f6 OO Sb8d7 f2f3
12/27 00:00 1.100.597 1.353.747 +0,32 Sg1e2 Sg8f6 OO Sb8d7 f2f3 Sd7b6 e3e4 OO e4e5 Sf6h5 Lf4d2 Sb6c4 Sc3a4 Le7g5 f3f4
13/30 00:01 1.895.465 1.516.372 +0,28 Sg1e2 Sg8f6 OO Sb8d7 a2a4 OO a4a5 a7a6 Dc2b3 b7b5 a5xb6/ep Dd8xb6 Se2c1 a6a5 Db3xb6 Sd7xb6 Sc1d3 Sb6c4 f2f3
14/31 00:03 6.336.158 1.661.725 +0,19 Sg1e2 Sg8f6 OO Sb8d7 a2a4 Sd7b6
14/31 00:05 8.700.931 1.672.291 +0,27 Sg1f3 Sb8d7 OO Sg8f6 a2a3 OO b2b3 Dd8a5 Tf1e1 a7a6 b3b4 Da5d8 e3e4 d5xe4 Sc3xe4 Sf6xe4 Dc2xe4 Tf8e8 De4c2 Sd7f6
15/32 00:06 11.077.849 1.712.451 +0,27 Sg1f3 Sb8d7 OO Sg8f6 a2a3 OO b2b3 Dd8a5 Tf1e1 a7a6 h2h3 Da5d8 Te1d1 Sf6h5 Lf4e5 f7f5 Sc3a4 Sh5f6 Sa4c5 Sd7xc5 d4xc5
16/40 00:10 17.509.328 1.731.882 +0,26 Sg1f3 Sb8d7 OO Sg8f6 a2a3 OO b2b3 Dd8b6 h2h3 Ta8c8 Tf1d1 Db6a6 b3b4 Sd7b6 Td1b1 Sf6h5 Lf4h2 Sb6c4 a3a4
17/41 00:18 33.074.046 1.755.150 +0,23 Sg1f3 Sb8d7 OO Sg8f6 a2a3 OO h2h3 Sd7b6 a3a4 Sb6c4 b2b3 Sc4d6 Sf3e5 Sf6h5 Lf4h2 Tf8e8 Se5d3 a7a6 Sd3c5 b7b6 Sc5d3
18/46 01:24 150.274.384 1.774.447 +0,18 Sg1f3 Sg8f6 a2a4 Sb8a6 OO OO Dc2d1
19/44 03:32 381.105.150 1.798.463 +0,16 Sg1f3 Sg8f6 h2h4 Sb8d7 OOO OO Kc1b1 Tf8e8 Td1c1 Sd7b6 Lf4g5 Sb6d7 Sc3a4 Dd8c7 g2g3 Le7d6 Lg5f4 Ld6xf4 g3xf4
20/42 05:36 609.036.622 1.808.905 +0,16 Sg1f3 Sg8f6 h2h4 Sb8d7 OOO OO Kc1b1 Tf8e8 Td1c1 Sd7b6 Lf4g5 Sb6d7 Sc3a4 Dd8c7 g2g3 Le7d6 Lg5f4 Ld6xf4 g3xf4 Dc7a5 Th1g1 Sf6e4 Sa4c3
21/48 10:48 1.176.539.697 1.814.421 +0,26 Sg1f3 Sg8f6 h2h4 Sb8d7 OOO Le7b4 Kc1b1 Dd8e7 Sc3e2 Sf6e4 Se2g3 Sd7f6 Sf3e5 Se4xg3 Lf4xg3 OO Se5d3 a7a5 Lg3e5 Lb4d6 Le5xf6 De7xf6 h4h5 g6g5
22/59 16:31 1.798.659.240 1.815.166 +0,26 Sg1f3 Sg8f6 h2h4 Sb8d7 OOO Le7b4 Kc1b1 Dd8e7 Sc3e2 Sf6e4 Se2g3 Sd7f6 Sf3e5 Se4xg3 Lf4xg3 OO Se5d3 a7a5 Lg3e5 Lb4d6 Le5xd6 De7xd6 g2g4 Sf6xg4
23/52 21:17 2.311.309.474 1.809.598 +0,24 Sg1f3 Sg8f6 h2h4 Sb8d7 OOO Le7b4 Kc1b1 Dd8e7 Sc3e2 Sf6e4 Se2g3 Sd7f6 Sf3e5 Se4xg3 Lf4xg3 OO Se5d3 Lb4d6 Lg3xd6 De7xd6 Sd3c5 Dd6c7
24/56 31:30 3.400.551.210 1.798.876 +0,22 Sg1f3 Sg8f6 h2h4 Sb8d7 OOO Le7b4 Kc1b1 Dd8e7 Sc3e2 Sf6e4 Se2g3 Sd7f6 Sf3e5 Se4xg3 Lf4xg3 OO Se5d3 Lb4d6 Lg3xd6 De7xd6 Sd3c5 Dd6c7
24/56 1:09:32 7.301.101.065 1.749.703 +0,28 OOO Sg8f6 Kc1b1 Sb8d7 h2h4 OO Sg1e2 Sd7b6 Se2g3 Sf6g4 f2f3 Sg4h6 Sg3f1 Tf8e8 g2g3 Le7d6 Lf4g5 Ld6e7 Lg5xe7 Dd8xe7 e3e4 d5xe4
25/60 1:47:50 11.279.670.360 1.743.355 +0,29 OOO Sg8f6 Kc1b1 Sb8d7 h2h4 a7a5 Sg1f3 a5a4 a2a3 Dd8b6 Sc3xa4 Db6a6 Sa4c3 b7b5 Dc2b3 b5b4 a3xb4 OO b4b5 Da6b7 Kb1c2
26/61 2:22:53 15.091.458.550 1.760.247 +0,27 OOO Sg8f6 Kc1b1 Sb8d7 h2h4 a7a5 Sg1f3 a5a4 a2a3 Dd8b6 Sc3xa4 Db6a5 Sa4c3 b7b5 Dc2b3 OO Sc3a2 Sf6e4 Td1c1 Tf8c8 Lf4g5 Le7d6
27/67 4:07:47 26.507.267.951 1.782.883 +0,26 OOO Sg8f6 Kc1b1 Sb8d7 h2h4 a7a5 Sg1f3 Sd7b6 Sf3e5 a5a4 a2a3 Sf6d7 e3e4 Sd7xe5 d4xe5 d5d4 Lf4g5 Le7xg5 h4xg5 Th8h5 f2f4 Sb6c4 Th1xh5

[Don]

See my announcement, the fast sse4.2 version is now available.

The Jim Ablett version is now available from Jim Abletts web site as well as the komodoches web site.

We are working on a PGO version that is GCC based and has sse4.2 support. When that is available you will want to see which version runs best on your particular platform.

The Komodo 2.03 release is imminent. Release 2.01 was short lived due to problems.

Version 2.03 is to be viewed as a separate version, not just a bug fix release as it has some improvements, perhaps 5-10 additional ELO.

But it also has a major bug fix that has caused problems in testing. This bug has been in Komodo since the beginning of time ...

Get it here: http://komodochess.com

Komodo 2.03 is significantly stronger than Komodo 1.3.

Various platform specific versions will be posted as they become available and there may be multiple versions for your platform. If you don't see anything, check back frequently. At the time of this post only 2 version are ready, the Android version and the Mac version. But more will soon follow. Some versions may run better on your machine than others so you may wish to use the version that runs fastest on your hardware.

You can always get the latest release versions of Komodo here:

http://komodochess.com

Again, many thanks to Jim Ablett and Dann Corbit and Aart Bilk for helping me debug and compile. Clemens Keck was very helpful also in helping me test.

Feedback is always welcome.

Don and Larry

[Don]

Thanks to you and your team.

Don't start testing yet until we get the SSE42 (ABM) version ready. Preliminary results show that it is about 8% faster and these binaries appear to run even better on AMD. But you can evaluate this for yourself when it's ready.

Don

Ok, I now have the fast SSE4.2 version on the web site. See my announcement in another post in its own thread.