Chess System Tal 2.1 EAS

[towforce]

Is this system windows-only?

It might run under another OS's compatibility layer (like Wine).

I think so yes, all CS Tals and Rebels were built with MSVC in the past as that is Chris' compiler of choice and other compilers had trouble with the very large networks used at least that's what I remember. The .exe is uncompressed 139 Mb..

If it won't run under another OS's Windows compatibility layer, and if anyone is strongly enough motivated to do it, according to this page (link), C++ can be transpiled into Rust, Ruby, Java and GLSL.

C++ can also be compiled into WASM, which will run on a wide variety of platforms (including most browsers).

[Peter Berger]

Chris asked me to announce the new Chess System Tal 2.1 EAS

Quite the diva way of release;) - thx Ed and Chris.

Would be fun to have a panel (reasonably strong humans?) which took a few selected games from the strong EAS programs and awarded (somehow) a brilliancy prize or two.

Yes, this sounds fun. I wonder whether your ancient post about style isn't still true though. First impression: CSTal won't take material if it can be avoided and outsearches the old engines.
Stylewise the resulting games remind me of Smyslov as very first impression (kind of similar to Patricia).

Here is a nice (and strange) one:

[Event "Lang 120min+10sek"]
[Site "Berlin"]
[Date "2025.04.24"]
[Round "?"]
[White "Crafty 25.6"]
[Black "Chess System Tal 2.1 EAS"]
[Result "0-1"]
[ECO "C66"]
[PlyCount "204"]
[TimeControl "7200+10"]

{4096MB, DESKTOP-8OCGGEO} 1. e4 {[%emt 0:00:00]} e5 {[%eval 36,33] [%emt 0:03:44]} 2. Nf3 {[%emt 0:00:07]} Nc6 {[%eval 27,32] [%emt 0:01:28]} 3. Bb5 {[%emt 0:00:06]} Nf6 {[%eval 54,28] [%emt 0:00:55]} 4. O-O {[%emt 0:00:07]} Be7 {[%eval 36,26] [%emt 0:01:18]} 5. Re1 {[%emt 0:00:07] (d3)} d6 {[%eval 59,28] [%emt 0:02:38]} 6. d4 {[%emt 0:00:07]} exd4 {[%eval 59,25] [%emt 0:01:18]} 7. Nxd4 {[%emt 0:00:07]} Bd7 {[%eval 57,29] [%emt 0:03:57]} 8. Bf1 {[%emt 0:00:07]} O-O {[%eval 46,32] [%emt 0:02:49]} 9. Nc3 {[%emt 0:00:06]} Nxd4 {[%eval 62,32] [%emt 0:18:19]} 10. Qxd4 {[%emt 0:03:09]} Ng4 {[%eval 53,33] [%emt 0:05:22]} 11. Nd5 {[%emt 0:03:02] (h3)} Bh4 {[%eval 34,30] [%emt 0:02:49]} 12. g3 {[%emt 0:02:57]} c6 {[%eval 32,30] [%emt 0:02:50]} 13. gxh4 {[%emt 0:02:59] (Se3)} Ne5 {[%eval 0,30] [%emt 0:01:50]} 14. Bg2 {[%emt 0:02:47]} cxd5 {[%eval -10,35] [%emt 0:07:48]} 15. exd5 {[%emt 0:00:21]} Rc8 {[%eval 21,28] [%emt 0:03:42]} 16. Bf4 {[%emt 0:00:07]} Rc4 {[%eval 32,30] [%emt 0:01:36]} 17. Qd2 {[%emt 0:03:36]} Qf6 {[%eval 19,32] [%emt 0:01:52]} 18. Bg3 {[%emt 0:02:37]} Nf3+ {[%eval 17,34] [%emt 0:05:51]} 19. Bxf3 {[%emt 0:02:30]} Qxf3 {[%eval 14,35] [%emt 0:01:09]} 20. Re3 {[%emt 0:01:10]} Qg4 {[%eval 20,34] [%emt 0:01:26]} 21. Rae1 {[%emt 0:00:51]} Rd4 {[%eval 48,31] [%emt 0:01:32]} 22. Rd3 {[%emt 0:00:43]} Rxd3 {[%eval 34,34] [%emt 0:04:22]} 23. Qxd3 {[%emt 0:00:07]} h5 {[%eval 49,29] [%emt 0:02:43]} 24. f3 {[%emt 0:04:55]} Qa4 {[%eval 0,34] [%emt 0:01:29]} 25. b3 {[%emt 0:04:07] (Lxd6)} Qxa2 {[%eval 0,28] [%emt 0:00:58]} 26. Bxd6 {[%emt 0:01:09]} Rc8 {[%eval 0,36] [%emt 0:01:56]} 27. c4 {[%emt 0:02:06]} Bh3 {[%eval 0,36] [%emt 0:02:25]} 28. Re2 {[%emt 0:02:03]} Qa1+ {[%eval 0,37] [%emt 0:04:17]} 29. Kf2 {[%emt 0:00:07]} a5 {[%eval 0,36] [%emt 0:01:39]} 30. Kg3 {[%emt 0:05:30] (Te5)} Bd7 {[%eval 0,37] [%emt 0:01:59]} 31. Kg2 {[%emt 0:00:20]} a4 {[%eval 0,36] [%emt 0:01:15]} 32. Re7 {[%emt 0:02:07]} Rd8 {[%eval 0,38] [%emt 0:04:22]} 33. bxa4 {[%emt 0:00:08] (De2)} Qf6 {[%eval 0,26] [%emt 0:00:38]} 34. Ba3 {[%emt 0:03:54] (c5)} Qxh4 {[%eval 0,32] [%emt 0:00:39]} 35. Qe2 {[%emt 0:02:09] (Kh1)} Qh3+ {[%eval 10,28] [%emt 0:01:34]} 36. Kg1 {[%emt 0:01:40]} Qf5 {[%eval 0,33] [%emt 0:00:51]} 37. a5 {[%emt 0:02:15] (Lb2)} h4 {[%eval 0,32] [%emt 0:00:39]} 38. Kf2 {[%emt 0:00:43] (Lb4)} Qf4 {[%eval 31,26] [%emt 0:00:51]} 39. Kf1 {[%emt 0:00:27] (Ke1)} Bf5 {[%eval 0,25] [%emt 0:00:37]} 40. Bc5 {[%emt 0:02:45] (Ke1)} h3 {[%eval 0,28] [%emt 0:01:46]} 41. Rxb7 {[%emt 0:02:08] (Le3)} Rc8 {[%eval -32,28] [%emt 0:00:48]} 42. Be3 {[%emt 0:00:33]} Qe5 {[%eval -30,30] [%emt 0:01:49]} 43. Rb3 {[%emt 0:03:20] (Tb6)} Qa1+ {[%eval -31,30] [%emt 0:01:16]} 44. Kf2 {[%emt 0:00:29]} Qxa5 {[%eval -23,30] [%emt 0:00:31]} 45. Bd4 {[%emt 0:08:16] (c5)} Qd8 {[%eval -124,23] [%emt 0:00:29]} 46. Kf1 {[%emt 0:00:49] (Ke1)} Qg5 {[%eval -137,24] [%emt 0:00:38]} 47. Be3 {[%emt 0:01:13] (Tb2)} Qf6 {[%eval -137,25] [%emt 0:00:36]} 48. Bd2 {[%emt 0:01:55] (Lf4)} Bd7 {[%eval -128,25] [%emt 0:00:43]} 49. Rc3 {[%emt 0:01:39] (Le1)} Rb8 {[%eval -157,27] [%emt 0:01:02]} 50. Qe4 {[%emt 0:01:13]} Re8 {[%eval -166,26] [%emt 0:00:24]} 51. Qf4 {[%emt 0:00:20]} Qg6 {[%eval -140,29] [%emt 0:00:25]} 52. Qg5 {[%emt 0:00:12]} Qb1+ {[%eval -166,31] [%emt 0:00:40]} 53. Bc1 {[%emt 0:00:52]} f6 {[%eval -140,32] [%emt 0:01:08]} 54. Qd2 {[%emt 0:00:43] (Dh4)} Qg6 {[%eval -140,30] [%emt 0:00:21]} 55. Qf2 {[%emt 0:00:13]} Ra8 {[%eval -135,29] [%emt 0:00:24]} 56. d6 {[%emt 0:01:03] (Dg3)} Ra1 {[%eval -164,25] [%emt 0:00:21]} 57. Qb2 {[%emt 0:00:46] (Dd2)} Rb1 {[%eval -257,23] [%emt 0:00:24]} 58. Qd2 {[%emt 0:00:15]} Kh8 {[%eval -276,27] [%emt 0:00:37]} 59. Qf2 {[%emt 0:00:49] (Kf2)} Qg5 {[%eval -287,27] [%emt 0:00:30]} 60. f4 {[%emt 0:00:38]} Qg4 {[%eval -327,30] [%emt 0:01:14]} 61. Qd2 {[%emt 0:01:49] (Ke1)} Ra1 {[%eval -382,26] [%emt 0:00:22]} 62. Rg3 {[%emt 0:00:11]} Qe6 {[%eval -356,27] [%emt 0:00:13]} 63. Qc3 {[%emt 0:00:14]} Ra2 {[%eval -363,28] [%emt 0:00:46]} 64. Bd2 {[%emt 0:00:58]} Qe4 {[%eval -417,28] [%emt 0:00:36]} 65. Rxh3+ {[%emt 0:00:32]} Kg8 {[%eval -426,27] [%emt 0:00:14]} 66. Rg3 {[%emt 0:00:16]} Qh1+ {[%eval -406,28] [%emt 0:00:30]} 67. Kf2 {[%emt 0:00:08]} Bc6 {[%eval -441,29] [%emt 0:00:28]} 68. Rd3 {[%emt 0:00:35]} Qxh2+ {[%eval -443,29] [%emt 0:00:29]} 69. Ke3 {[%emt 0:00:43]} Qg1+ {[%eval -469,29] [%emt 0:00:22]} 70. Ke2 {[%emt 0:00:06]} Bd7 {[%eval -466,28] [%emt 0:00:14]} 71. Rd5 {[%emt 0:01:37]} Qg2+ {[%eval -468,30] [%emt 0:00:22]} 72. Kd3 {[%emt 0:00:13]} Bc6 {[%eval -469,28] [%emt 0:00:08]} 73. d7 {[%emt 0:00:18]} Bxd7 {[%eval -481,29] [%emt 0:00:22]} 74. Qc1 {[%emt 0:02:07]} Bc6 {[%eval -492,32] [%emt 0:00:40]} 75. Rd8+ {[%emt 0:00:45] (Td6)} Kf7 {[%eval -479,28] [%emt 0:00:16]} 76. Kc3 {[%emt 0:00:40] (Lb4)} Ba4 {[%eval -603,22] [%emt 0:00:11]} 77. Rd3 {[%emt 0:01:14] (De1)} Qb7 {[%eval -669,24] [%emt 0:00:14]} 78. f5 {[%emt 0:01:25] (Te3)} Qa6 {[%eval -737,22] [%emt 0:00:12]} 79. Rf3 {[%emt 0:00:46] (c5)} Qd6 {[%eval -833,25] [%emt 0:00:13]} 80. Re3 {[%emt 0:00:26]} Kg8 {[%eval -868,28] [%emt 0:00:27]} 81. Re1 {[%emt 0:01:40] (Td3)} Ra3+ {[%eval -1175,23] [%emt 0:00:12]} 82. Qxa3 {[%emt 0:00:27]} Qxa3+ {[%eval -1291,24] [%emt 0:00:08]} 83. Kd4 {[%emt 0:00:06]} Bc2 {[%eval -1325,24] [%emt 0:00:13]} 84. Re3 {[%emt 0:00:11] (Lc1)} Qa7+ {[%eval -1406,25] [%emt 0:00:16]} 85. Kc3 {[%emt 0:00:12] (Kd5)} Bxf5 {[%eval -1580,25] [%emt 0:00:19]} 86. Kb4 {[%emt 0:00:08] (Lc1)} Qb6+ {[%eval -1758,23] [%emt 0:00:12]} 87. Ka3 {[%emt 0:00:06] (Ka4)} Qd4 {[%eval -1970,24] [%emt 0:00:09]} 88. Re8+ {[%emt 0:00:18] (Kb4)} Kf7 {[%eval -32729,33] [%emt 0:00:05]} 89. Re3 {[%emt 0:00:38]} Qxd2 {[%eval -32737,67] [%emt 0:00:01]} 90. Rb3 {[%emt 0:00:06]} Be6 {[%eval -32739,66] [%emt 0:00:02]} 91. Rb7+ {[%emt 0:00:13]} Kg6 {[%eval -32741,70] [%emt 0:00:04]} 92. Ka4 {[%emt 0:00:07]} Qa2+ {[%eval -32743,70] [%emt 0:00:07]} 93. Kb5 {[%emt 0:00:06]} Qxc4+ {[%eval -32747,71] [%emt 0:00:11]} 94. Ka5 {[%emt 0:00:12]} Qc3+ {[%eval -32749,79] [%emt 0:00:01]} 95. Ka6 {[%emt 0:00:05] (Kb6)} Bc8 {[%eval -32751,61] [%emt 0:00:03]} 96. Ka7 {[%emt 0:00:13]} Qa5+ {[%eval -32753,79] [%emt 0:00:01]} 97. Kb8 {[%emt 0:00:05]} Bxb7 {[%eval -32755,99] [%emt 0:00:01]} 98. Kxb7 {[%emt 0:00:09]} Kf7 {[%eval -32757,116] [%emt 0:00:01]} 99. Kc6 {[%emt 0:00:05]} Ke7 {[%eval -32759,116] [%emt 0:00:00]} 100. Kb7 {[%emt 0:00:06]} Kd7 {[%eval -32761,116] [%emt 0:00:00]} 101. Kb8 {[%emt 0:00:05]} Kc6 {[%eval -32763,116] [%emt 0:00:00]} 102. Kc8 {[%emt 0:00:06]} Qa8# {[%eval -32765,116] [%emt 0:00:00]} 0-1

[mclane]

These EMT comments in the PGN are a pain in the ass. How good one can delete them in a good Chess GUI.

Crafty is a good victim, when i remember the old battles between bob and chris in the many years before now,

[Damir]

Here we go, Billy boy with his Crafty engine strikes again.

[pohl4711]

First impression: CSTal won't take material if it can be avoided and outsearches the old engines.
Stylewise the resulting games remind me of Smyslov as very first impression (kind of similar to Patricia).

CSTal 2.1 EAS and Patricia have both very high EAS-scores, so, of course, their playing style should be similar (aggressive), otherwise the EAS-scores would not be so high...

What I can confirm here, is, that CSTal 2.1 EAS uses the rule of Bobby Fischer very much stronger than other engines: "To take is a mistake". CSTal 2.1 EAS tries to avoid any captures, if possible.

[cpeters]

Tell you what, cpeters, you are specifically denied a licence to download or use any engine of mine. Erase what you have from your equipment. Have a nice day.

My view is myopic - guide me Sir.


Which engine of yours?

or this:
https://github.com/egh-s/Rebel-14.1.02- ... stem-TAL-1?

change the

licence to download or use

GPL? GUIDEMESIRE! HELP! WHICHONETOAVOID?

Wer ist wer?

Accompanied by lamas (or their lovelylovelywoolponcholovelywool) in lovely france with your trustworthy PC.

Lovely. Like the whoollleenn pnoncho. Be brief!
I need guidance. From you. To avoid legale troubleß (delete the data chess engine data for se gericht and se anwalt). To be safe.

deutsch/english/русский (whithin reason).

greetings

[Rebel]

Actually you don't deserve answer but lucky you I am in a good mood.

It's a bug in Arena, it wrongly installs Chess System Tal as an Xboard engine.

A change to UCI is required.

Be kind.

[Rebel]

Selected games Chess System Tal 2.1 EAS

Sacrifices and Shorties.

[Tibono]

Hi, thanks Ed.
I wouldn't consider the "queensac" to be an actual Queen sac... the Queen was sort of trapped and got little compensation from her walk. The game toggled significantly later in favor of CSTal II EAS thanks an opponent's mistake.
By the way, thanks to Chris for sharing!
All the best,
Eric

[cpeters]

Actually you don't deserve answer but lucky you I am in a good mood.

It's a bug in Arena, it wrongly installs Chess System Tal as an Xboard engine.

A change to UCI is required.

Be kind.

I know (neither do I use the mentioned gui nor the engine running). The screenie is from here:
viewtopic.php?p=943558#p943558

It's the Korniloff-bit that got me irritated. Well, an Arena-bug perhaps.
I disengage now from this.