A question to Chess Experts

[Sedat Canbaz]

Hello dear Chess Experts,

With respect to all,i just wonder a lot about SCCT 3 Type Tournaments-Without books:
-Why the bellow Chess Programs are repeated exactly with same opening:C42 Petroff Defence ?
-Is that can be the reason that almost all Chess Programs are each other relative ?
-Why the Chess Programs dont prefer to play e.g Sicilian or Caro-Kann openings ?
-Is there any Chess Program which plays oftenly Sicilian or Caro-Kann openings ?
-In my opinion,any 100 % original work should play different own opening styles ?!

Some Notes based on 2100 games:
-23 % of the played openings are:D00=279 games / C42=220 games
-there are only 37 games (1.76 %) by Sicilian and Caro-Kann
-the most strange thing:no any one of the strongest openings with B90,B67,B66

For more details:
http://sedatchess.110mb.com/index.php?p=1_32

Crosstable- based on only C42 games-without books


Overall Opening Statistics-without books:





Thanks in advance,
Sedat Canbaz

[Edmund]

Firstly, because databases are available generally, I don't spend too much time writing specific opening-related code.
Secondly, chess engines usually embody only very general rules (increase mobility, centralize pieces, keep up the development of pieces, doubled-pawns ...). Rarely you also see predefined values for certain castling configurations. These rules may be prioritized differently for certain engines, but they still give a bias on the choice of openings.

[Sedat Canbaz]

Hello,

I am not a Chess Programmer,but it seems the current tested engines have similar opening-related code
Plus...C42 is not one of the most strongest openings for Blacks,even i can say the engines winning percentage are approx 40 %


In other words,i have a wish from Chess Programmers:
-its will be great if any Programmer will release a engine,which will play the most popular / strongest openings

And unfortunately the current tested engines opening styles are far away from the current modern opening theory


Kind Regards,
Sedat

[CRoberson]

We put in general heuristics that make it play well. If we put in more specific heuristics, then a program may not play somebody's favorite opening well.

In the opening, the focus is on piece development and mobility. 1. e4 e5 2. Nf3 Nf6 does produce an opening that develops and increases piece mobility along with getting the kings castled quickly.

The problem with getting a program to play the Sicilian (maybe even the Accelerated Dragon variation) is that you'd have to search deeper than possible with the typical time constraints. Even humans don't play the Sicilian due to search, they do it due to years of experience, previous preparation and memory. The only thing a computer program has for previous experience is an opening book.

[Sedat Canbaz]

Even humans don't play the Sicilian

Thank you...

Just i dont agree with you about Sicilian Defence that is not playing by TOP Grandmasters

I dont know what kind of database do you have,but believe me the Sicilian Defence is one of the most popular,powerful,strongest openings

And from my experience i can say that the chess engines with both sides have the highest winning percentage or at least equal chances to win (in case of playing the Sicilian Defence)

Perfect 2012 book is based on only Grandmaster games average 2600 ELO and see the number of the Sicilian games:


See the winning percentage of Sicilian defence-based on some SCCT games


Another example-Magnus Carlsen:
http://chessgames.com/player/magnus_carlsen.html


Best,
Sedat

[CRoberson]

I just ran some old and new versions of Ares and Telepath. I gave them the start position in infinite analysis mode. The opening is far from static. A long analysis shows it changing openings several times as it searches deeper. I didn't see any Petroff's.

Older version:
At 8 ply: 1. Nf3 d5 2. d4 Nf6 3. Nc3 Nc6
At 12 ply: 1. d4 e6 2. e4 d5 3. Nc3 Nc6
At 15 ply: 1. d4 Nf6 2. Nc3 d5 3. Nf3 Bf5

Newer version:
At 10 ply: 1. Nc3 d5 2. d4 Nc6
At 18 ply: 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 BxN

The more complicated openings come out when they are given more search time.

[CRoberson]

Even humans don't play the Sicilian

Thank you...

Just i dont agree with you about Sicilian Defence that is not playing by TOP Grandmasters

I dont know what kind of database do you have,but believe me the Sicilian Defence is one of the most popular,powerful,strongest openings

And from my experience i can say that the chess engines with both sides have the highest winning percentage or at least equal chances to win (in case of playing the Sicilian Defence)

Perfect 2012 book is based on only Grandmaster games average 2600 ELO and see the number of the Sicilian games:


See the winning percentage of Sicilian defence-based on some SCCT games


Another example-Magnus Carlsen:
http://chessgames.com/player/magnus_carlsen.html


Best,
Sedat

You misunderstood. Of course, humans play the Sicilian; even I do. If they didn't it wouldn't have a name.

What I said was they don't play it because they sat down at the board during a tournament and respond to e4 with c5 without ever having heard of the Sicilian before. Based on all the opening theory that has been taught for decades, c5 is less natural than e5 when responding to e4. When I say "theory", I mean all the general opening rules such as develop pieces, control the center, castle early ..... I don't mean what you find in databases; that is not theory that is practice.

The GM's most certainly don't respond with c5 without previous preparation which includes reviewing opening books and previous games. After that, they come to the board with prepared lines not just search at the board.

[Sedat Canbaz]

I just ran some old and new versions of Ares and Telepath. I gave them the start position in infinite analysis mode. The opening is far from static. A long analysis shows it changing openings several times as it searches deeper. I didn't see any Petroff's.

Older version:
At 8 ply: 1. Nf3 d5 2. d4 Nf6 3. Nc3 Nc6
At 12 ply: 1. d4 e6 2. e4 d5 3. Nc3 Nc6
At 15 ply: 1. d4 Nf6 2. Nc3 d5 3. Nf3 Bf5

Newer version:
At 10 ply: 1. Nc3 d5 2. d4 Nc6
At 18 ply: 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 BxN

The more complicated openings come out when they are given more search time.

I see you are tested Ares and Telepath,but i was meaning for the engines which are tested under SCCT 3 Type Tournaments's conditions

Btw,just another interesting note,during SCCT FINAL 2010 - 24 Hours per Game

As we see up 5 moves,both engines (in both games) have exactly same identical moves

[Event "SCCT FINAL 2010 - 24 Hours per Game"]
[Site "Antalya/Turkey"]
[Date "2010.12.22"]
[Round "1"]
[White "Rybka 4 x64 T4"]
[Black "Houdini 1.5 x64 T4"]
[Result "1/2-1/2"]
[ECO "E11"]
[Annotator "0.12;0.08"]
[PlyCount "118"]
[EventDate "2010.??.??"]
[TimeControl "43200"]

{Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz 3300 MHz W=24.3 plies; 434kN/ s B=27.6
plies; 10.432kN/s} 1. d4 {Both last book move [%eval 12,24] [%emt 0:22:53]} Nf6
{[%eval 8,27] [%emt 0:20:29]} 2. Nf3 {[%eval 19,23] [%emt 0:15:27]} e6 {
[%eval 6,27] [%emt 0:20:53]} 3. c4 {[%eval 18,22] [%emt 0:13:37]} Bb4+ {
(Be7) [%eval 5,26] [%emt 0:10:11]} 4. Bd2 {[%eval 22,23] [%emt 0:20:22]} Qe7 {
[%eval 4,27] [%emt 0:11:53]} 5. g3 {(e3) [%eval 21,23] [%emt 0:20:08]} Bxd2+ {
[%eval 3,28] [%emt 0:23:21]} 6. Qxd2 {[%eval 26,24] [%emt 0:19:05]} Nc6 {
[%eval 7,28] [%emt 0:12:48]} 7. e3 {(Nc3) [%eval 22,22] [%emt 0:11:36]} b6 {
(0-0) [%eval 9,26] [%emt 0:13:07]} 8. Bg2 {[%eval 29,23] [%emt 0:32:09]} Bb7 {
(0-0) [%eval 11,27] [%emt 0:11:24]} 9. O-O {(Nc3) [%eval 30,25] [%emt 0:40:39]}
O-O {[%eval 12,26] [%emt 0:09:42]} 10. Nc3 {[%eval 36,23] [%emt 0:07:17]} Na5 {
[%eval 14,26] [%emt 0:15:40]} 11. b3 {[%eval 31,20] [%emt 0:14:28]} Ne4 {
(Rfe8) [%eval 13,25] [%emt 0:16:04]} 12. Qc2 {[%eval 36,22] [%emt 0:15:16]}
Nxc3 {[%eval 16,26] [%emt 0:13:14]} 13. Qxc3 {[%eval 36,22] [%emt 0:03:10]} Be4
{[%eval 13,26] [%emt 0:13:22]} 14. b4 {(Nd2) [%eval 35,22] [%emt 0:17:26]} Nc6
{[%eval 15,26] [%emt 0:12:07]} 15. a3 {[%eval 35,19] [%emt 0:06:48]} f6 {
(Qe8) [%eval 16,24] [%emt 0:08:45]} 16. Rfd1 {
(Rac1) [%eval 38,20] [%emt 0:14:59]} d6 {(Rfc8) [%eval 20,26] [%emt 0:12:29]}
17. Rac1 {[%eval 40,21] [%emt 0:13:13]} Nd8 {[%eval 17,26] [%emt 0:07:26]} 18.
c5 {[%eval 30,21] [%emt 0:09:43]} d5 {[%eval 19,27] [%emt 0:35:34]} 19. Nd2 {
(Ne1) [%eval 30,20] [%emt 0:16:52]} Bxg2 {[%eval 16,26] [%emt 0:12:34]} 20.
Kxg2 {[%eval 33,21] [%emt 0:04:51]} Qd7 {(Nf7) [%eval 18,26] [%emt 0:12:00]}
21. Qb3 {(cxb6) [%eval 27,22] [%emt 0:46:50]} Rb8 {
(c6) [%eval 13,25] [%emt 0:11:41]} 22. Rc2 {[%eval 32,22] [%emt 1:04:33]} b5 {
(Nc6) [%eval 16,27] [%emt 0:18:53]} 23. c6 {[%eval 33,24] [%emt 0:09:35]} Qd6 {
(Qe8) [%eval 20,28] [%emt 0:08:40]} 24. Rc5 {[%eval 41,25] [%emt 0:15:40]} Rb6
{[%eval 24,28] [%emt 0:10:55]} 25. Rdc1 {[%eval 42,26] [%emt 0:17:58]} f5 {
[%eval 22,29] [%emt 0:05:40]} 26. a4 {[%eval 48,25] [%emt 0:09:53]} bxa4 {
[%eval 22,29] [%emt 0:18:06]} 27. Qxa4 {[%eval 48,25] [%emt 0:04:14]} Nf7 {
(a6) [%eval 30,29] [%emt 0:54:34]} 28. Qxa7 {[%eval 43,24] [%emt 0:06:20]} g5 {
(Rxb4) [%eval 26,27] [%emt 0:06:50]} 29. Qa4 {(b5) [%eval 70,22] [%emt 0:08:23]
} Rfb8 {[%eval 20,26] [%emt 0:08:29]} 30. b5 {
(Rb1) [%eval 70,22] [%emt 0:06:06]} Qf8 {[%eval 23,26] [%emt 0:04:22]} 31. Nb1
{(h3) [%eval 74,20] [%emt 0:02:40]} Ra8 {(g4) [%eval 25,26] [%emt 0:06:14]} 32.
Qb3 {[%eval 60,21] [%emt 0:10:22]} Nd6 {[%eval 22,25] [%emt 0:11:18]} 33. Nc3 {
[%eval 60,21] [%emt 0:07:54]} Rbb8 {[%eval 25,24] [%emt 0:04:47]} 34. Rb1 {
(Rf1) [%eval 62,19] [%emt 0:03:35]} Qf7 {(Qf6) [%eval 26,24] [%emt 0:08:57]}
35. Qd1 {[%eval 60,19] [%emt 0:21:35]} h5 {(Qf6) [%eval 20,24] [%emt 0:03:50]}
36. Na4 {[%eval 77,19] [%emt 0:04:49]} f4 {(Ne4) [%eval 28,23] [%emt 0:05:23]}
37. exf4 {[%eval 57,18] [%emt 0:01:46]} Ne4 {(Qg6) [%eval 24,23] [%emt 0:18:44]
} 38. Rcc1 {(Nc3) [%eval 95,19] [%emt 0:08:09]} gxf4 {
[%eval 38,22] [%emt 0:05:34]} 39. Nc3 {[%eval 95,19] [%emt 0:17:13]} fxg3 {
[%eval 38,23] [%emt 0:03:14]} 40. Nxe4 {[%eval 54,18] [%emt 0:01:12]} dxe4 {
[%eval 36,22] [%emt 0:00:01]} 41. Qe2 {[%eval 35534,19] [%emt 0:02:45]} gxf2 {
[%eval 32,24] [%emt 0:03:14]} 42. Qxf2 {[%eval 35534,20] [%emt 0:04:22]} Ra3 {
[%eval 24,25] [%emt 0:03:19]} 43. b6 {[%eval 35534,19] [%emt 0:04:01]} cxb6 {
[%eval 23,26] [%emt 0:04:08]} 44. Qe2 {[%eval 71,19] [%emt 0:02:10]} Qf3+ {
(Rf3) [%eval 24,25] [%emt 0:07:04]} 45. Qxf3 {[%eval 77,19] [%emt 0:00:35]}
exf3+ {[%eval 20,24] [%emt 0:00:00]} 46. Kf2 {[%eval 76,24] [%emt 0:01:12]} Kf7
{[%eval 18,28] [%emt 0:02:58]} 47. c7 {[%eval 76,24] [%emt 0:00:59]} Rc8 {
[%eval 18,27] [%emt 0:00:00]} 48. Rxb6 {[%eval 76,24] [%emt 0:01:41]} Ke7 {
[%eval 15,30] [%emt 0:04:44]} 49. h3 {(h4) [%eval 52,22] [%emt 0:03:50]} Kd7 {
[%eval 8,28] [%emt 0:03:42]} 50. Rbc6 {[%eval 51,26] [%emt 0:06:54]} Ra7 {
(Rd3) [%eval 8,32] [%emt 0:02:52]} 51. Kxf3 {
(R1c5) [%eval 108,27] [%emt 0:01:21]} Raxc7 {
(Rcxc7) [%eval 4,36] [%emt 0:02:49]} 52. Rxc7+ {[%eval 107,30] [%emt 0:02:19]}
Rxc7 {[%eval 3,35] [%emt 0:00:00]} 53. Rc5 {
(Rxc7+) [%eval 107,31] [%emt 0:00:40]} Rxc5 {(Ra7) [%eval 1,48] [%emt 0:02:49]}
54. dxc5 {[%eval 138,34] [%emt 0:00:17]} Kc6 {(e5) [%eval 0,34] [%emt 0:00:00]}
55. Ke4 {[%eval 138,39] [%emt 0:04:54]} Kxc5 {[%eval 0,34] [%emt 0:00:00]} 56.
Ke5 {[%eval 138,42] [%emt 0:00:09]} Kc4 {(h4) [%eval 0,34] [%emt 0:00:00]} 57.
Kxe6 {[%eval 138,46] [%emt 0:01:01]} Kd4 {[%eval 0,34] [%emt 0:00:00]} 58. Kf5
{[%eval 0,49] [%emt 0:03:12]} Ke3 {[%eval 0,34] [%emt 0:00:00]} 59. h4 {
[%eval 0,48] [%emt 0:02:00]} Kf3 {
adjud. Draw accepted [%eval 0,34] [%emt 0:00:00]} 1/2-1/2

[Event "SCCT FINAL 2010 - 24 Hours per Game"]
[Site "Antalya/Turkey"]
[Date "2010.12.23"]
[Round "1"]
[White "Houdini 1.5 x64 T4"]
[Black "Rybka 4 x64 T4"]
[Result "1-0"]
[ECO "E20"]
[Annotator "0.22;0.20"]
[PlyCount "161"]
[EventDate "2010.??.??"]
[TimeControl "43200"]

{Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz 3300 MHz W=27.3 plies; 10. 566kN/s
B=23.3 plies; 425kN/s} 1. d4 {Both last book move [%eval 22,27] [%emt 0:23:51]}
Nf6 {[%eval 20,24] [%emt 0:52:15]} 2. c4 {[%eval 23,26] [%emt 0:10:30]} e6 {
[%eval 16,23] [%emt 0:35:06]} 3. Nf3 {(Nc3) [%eval 23,26] [%emt 0:16:37]} Be7 {
(Bb4+) [%eval 19,22] [%emt 0:20:44]} 4. Nc3 {[%eval 27,27] [%emt 0:13:25]} O-O
{(d5) [%eval 20,23] [%emt 0:36:59]} 5. e4 {[%eval 32,28] [%emt 0:14:02]} d5 {
[%eval 14,23] [%emt 0:12:39]} 6. e5 {[%eval 30,27] [%emt 0:10:33]} Ne4 {
[%eval 12,23] [%emt 0:07:52]} 7. cxd5 {[%eval 30,27] [%emt 0:14:36]} exd5 {
[%eval 15,24] [%emt 0:40:27]} 8. Bd3 {[%eval 30,28] [%emt 0:16:08]} Nxc3 {
[%eval 15,23] [%emt 0:08:17]} 9. bxc3 {[%eval 31,26] [%emt 0:00:00]} c5 {
[%eval 14,24] [%emt 0:17:11]} 10. O-O {[%eval 26,26] [%emt 0:34:53]} c4 {
[%eval 14,23] [%emt 0:08:29]} 11. Bc2 {[%eval 26,28] [%emt 0:34:16]} Nc6 {
[%eval 14,22] [%emt 0:16:19]} 12. a4 {[%eval 26,26] [%emt 0:12:57]} a6 {
(Bg4) [%eval 16,20] [%emt 0:12:45]} 13. Be3 {(Bd2) [%eval 18,24] [%emt 0:10:33]
} Bg4 {(Rb8) [%eval 8,23] [%emt 0:36:36]} 14. h3 {[%eval 21,26] [%emt 0:07:41]}
Bh5 {[%eval 8,23] [%emt 0:14:05]} 15. Qb1 {[%eval 16,26] [%emt 0:07:33]} Bxf3 {
(Bg6) [%eval 0,23] [%emt 0:11:24]} 16. gxf3 {[%eval 13,28] [%emt 0:26:18]} g6 {
[%eval 1,23] [%emt 0:11:10]} 17. Kg2 {(Qxb7) [%eval 7,26] [%emt 0:07:00]} Rb8 {
(Qa5) [%eval 0,23] [%emt 0:27:11]} 18. h4 {(f4) [%eval 40,26] [%emt 0:11:20]}
f5 {[%eval 15,21] [%emt 0:18:43]} 19. Bh6 {(Rh1) [%eval 45,26] [%emt 0:06:49]}
Rf7 {[%eval 26,21] [%emt 0:22:04]} 20. Rh1 {[%eval 40,26] [%emt 0:07:26]} Bxh4
{(Qd7) [%eval 26,21] [%emt 0:18:08]} 21. e6 {[%eval 31,27] [%emt 0:07:24]} Rc7
{[%eval 32,21] [%emt 0:08:18]} 22. Bf4 {[%eval 30,28] [%emt 0:13:44]} Bf6 {
(Bg5) [%eval 35534,21] [%emt 0:07:56]} 23. a5 {[%eval 35,26] [%emt 0:06:54]}
Re7 {[%eval 20,21] [%emt 0:12:32]} 24. Bxb8 {[%eval 50,26] [%emt 0:06:34]} Qxb8
{[%eval 13,22] [%emt 0:03:30]} 25. Bxf5 {[%eval 47,27] [%emt 0:13:45]} Qf8 {
[%eval 9,22] [%emt 0:03:58]} 26. Bg4 {[%eval 43,28] [%emt 0:12:30]} Bg5 {
[%eval 18,22] [%emt 0:02:57]} 27. f4 {(Qa2) [%eval 46,27] [%emt 0:05:41]} Bxf4
{[%eval 18,22] [%emt 0:09:25]} 28. Qd1 {[%eval 52,27] [%emt 0:05:31]} Qf6 {
[%eval 18,22] [%emt 0:05:57]} 29. Qf3 {[%eval 44,28] [%emt 0:08:35]} Qg5 {
[%eval 18,22] [%emt 0:02:17]} 30. Kf1 {[%eval 44,26] [%emt 0:00:01]} Na7 {
[%eval 35,22] [%emt 0:08:56]} 31. Rg1 {[%eval 59,29] [%emt 0:07:56]} Kg7 {
(Nb5) [%eval 72,20] [%emt 0:10:03]} 32. Bh3 {[%eval 83,28] [%emt 0:05:29]} Qf6
{[%eval 72,20] [%emt 0:03:01]} 33. Qxd5 {[%eval 83,26] [%emt 0:00:02]} Nb5 {
[%eval 68,20] [%emt 0:01:26]} 34. Re1 {(Qxc4) [%eval 125,25] [%emt 0:12:44]}
Bd2 {[%eval 106,21] [%emt 0:06:53]} 35. Re5 {[%eval 125,23] [%emt 0:00:00]}
Bxc3 {[%eval 106,22] [%emt 0:02:52]} 36. Rg3 {[%eval 152,23] [%emt 0:00:30]}
Bb4 {[%eval 35534,20] [%emt 0:01:56]} 37. Qe4 {
(Qxc4) [%eval 156,25] [%emt 0:06:38]} Bd6 {[%eval 70,23] [%emt 0:11:19]} 38.
Rf3 {[%eval 156,23] [%emt 0:00:00]} Bxe5 {[%eval 70,24] [%emt 0:00:41]} 39.
Rxf6 {[%eval 161,27] [%emt 0:06:47]} Bxf6 {[%eval 70,24] [%emt 0:00:27]} 40. d5
{[%eval 146,26] [%emt 0:00:00]} Rc7 {[%eval 71,24] [%emt 0:03:45]} 41. Bg4 {
[%eval 146,29] [%emt 0:06:47]} Nd6 {[%eval 71,26] [%emt 0:03:44]} 42. Qf4 {
[%eval 146,27] [%emt 0:00:01]} Be7 {[%eval 71,27] [%emt 0:00:39]} 43. Bd1 {
(Qd4+) [%eval 152,32] [%emt 0:24:29]} Kg8 {(Rc8) [%eval 77,26] [%emt 0:06:54]}
44. Qe3 {[%eval 153,31] [%emt 0:06:01]} Kg7 {(Rc8) [%eval 77,26] [%emt 0:06:03]
} 45. Bc2 {(Qd4+) [%eval 158,29] [%emt 0:04:20]} Rc8 {
[%eval 77,27] [%emt 0:05:40]} 46. Ke1 {(Qe5+) [%eval 158,29] [%emt 0:07:26]}
Rf8 {[%eval 78,24] [%emt 0:03:41]} 47. f4 {[%eval 158,29] [%emt 0:05:13]} Kh8 {
(Rf6) [%eval 84,24] [%emt 0:06:16]} 48. Qg3 {[%eval 158,30] [%emt 0:05:52]} Rf6
{[%eval 85,23] [%emt 0:02:42]} 49. Ke2 {(Bb1) [%eval 158,30] [%emt 0:03:55]}
Rf8 {[%eval 85,28] [%emt 0:06:05]} 50. Qc3+ {[%eval 158,29] [%emt 0:05:58]} Kg8
{[%eval 85,28] [%emt 0:03:12]} 51. Qd4 {[%eval 166,29] [%emt 0:07:49]} Rf6 {
[%eval 85,27] [%emt 0:07:37]} 52. Qg1 {(Qe3) [%eval 164,29] [%emt 0:03:32]} Kh8
{[%eval 85,25] [%emt 0:02:44]} 53. Qb6 {(Qa1) [%eval 164,30] [%emt 0:05:13]}
Kg7 {[%eval 85,25] [%emt 0:04:12]} 54. Qc7 {(Qf2) [%eval 164,30] [%emt 0:07:57]
} Kf8 {[%eval 80,25] [%emt 0:00:23]} 55. Ke3 {
(Kf3) [%eval 164,31] [%emt 0:04:33]} h5 {[%eval 103,25] [%emt 0:07:51]} 56.
Qb8+ {[%eval 180,30] [%emt 0:14:09]} Kg7 {[%eval 114,26] [%emt 0:00:25]} 57.
Qa7 {[%eval 187,29] [%emt 0:08:11]} Kg8 {(Kf8) [%eval 104,22] [%emt 0:05:51]}
58. Qd4 {(Ke2) [%eval 190,29] [%emt 0:05:35]} Kf8 {
[%eval 129,26] [%emt 0:13:18]} 59. Ke2 {(Qe5) [%eval 193,29] [%emt 0:04:24]}
Kg7 {(h4) [%eval 144,24] [%emt 0:11:45]} 60. Bb1 {[%eval 246,27] [%emt 0:07:51]
} h4 {(Kg8) [%eval 159,23] [%emt 0:02:39]} 61. Kf3 {
[%eval 278,27] [%emt 0:02:51]} Kh6 {(Kh7) [%eval 185,24] [%emt 0:05:09]} 62.
Qg1 {(Qb6) [%eval 274,26] [%emt 0:02:45]} Kg7 {[%eval 191,23] [%emt 0:01:28]}
63. Kg4 {[%eval 274,24] [%emt 0:00:00]} Kf8 {[%eval 191,24] [%emt 0:01:03]} 64.
Qd4 {[%eval 276,29] [%emt 0:03:01]} Bd8 {(Ke8) [%eval 224,22] [%emt 0:03:40]}
65. Qe5 {[%eval 345,27] [%emt 0:03:35]} Be7 {[%eval 224,22] [%emt 0:00:30]} 66.
Kh3 {[%eval 345,26] [%emt 0:00:00]} Kg8 {[%eval 254,23] [%emt 0:01:44]} 67. Qe2
{[%eval 377,26] [%emt 0:03:07]} Kg7 {[%eval 254,23] [%emt 0:02:44]} 68. Qg4 {
[%eval 377,24] [%emt 0:00:00]} Kh7 {(Ne8) [%eval 283,23] [%emt 0:02:30]} 69.
Qxh4+ {[%eval 465,25] [%emt 0:03:04]} Kg7 {[%eval 283,24] [%emt 0:00:24]} 70.
Qg3 {[%eval 465,24] [%emt 0:00:00]} Kh7 {[%eval 283,22] [%emt 0:01:04]} 71. Qg1
{[%eval 522,27] [%emt 0:09:29]} Kg7 {(Kh6) [%eval 397,21] [%emt 0:01:25]} 72.
f5 {(Qd4) [%eval 563,26] [%emt 0:08:16]} g5 {(c3) [%eval 394,22] [%emt 0:02:36]
} 73. Qxg5+ {[%eval 522,23] [%emt 0:00:00]} Kf8 {[%eval 460,26] [%emt 0:01:30]}
74. Qh5 {[%eval 602,30] [%emt 0:02:45]} Kg8 {
(Kg7) [%eval 460,26] [%emt 0:02:19]} 75. Kg3 {
(Kg2) [%eval 621,30] [%emt 0:03:10]} Kg7 {[%eval 460,25] [%emt 0:02:07]} 76.
Qh3 {[%eval 624,30] [%emt 0:04:21]} c3 {(Bd8) [%eval 491,24] [%emt 0:00:52]}
77. Kg2 {(Qg4+) [%eval 703,30] [%emt 0:04:02]} Kg8 {
[%eval 491,24] [%emt 0:00:47]} 78. Qxc3 {[%eval 724,32] [%emt 0:03:46]} Kf8 {
[%eval 705,21] [%emt 0:02:53]} 79. Qh3 {(Qf3) [%eval 813,29] [%emt 0:02:35]}
Kg8 {[%eval 705,27] [%emt 0:02:38]} 80. Bc2 {
(Bd3) [%eval 813,27] [%emt 0:00:00]} Kg7 {[%eval 705,25] [%emt 0:00:22]} 81.
Qg3+ {[%eval 827,28] [%emt 0:02:39]} 1-0

[gerold]

Hi Sedat.
I have been looking for book to play in Arena with top 5 engines.
The book i would like to have would be a book with all unusual or
irregular openings. Just to see how the top engines play with all
irregular openings.
Any help from you or anyone with an opening book for engines with these opening is appreciated.

Best,
Gerold.

[hgm]

In reply to 1. e4, micro-Max plays c6 at 0 ply (weird it plays anything at all there, as it is supposed to only search captures...), c5 at 1 ply, e5 at 2-5 ply, d5 at 6 ply and Nc6 at 7-9 ply.

Joker plays d5 at 1-4 ply, e6 at 5-10 ply, and e5 at 11-12 ply.