Sargon III (10mn/move) vs Prédateur (5mn/move)

[JuLieN]

After Fern's suggestion in this thread of running my engine against the Amiga version of Sargon III emulated inside WinUAE using a just in time compiler, I decided it could be a fun experiment.

As Prédateur is not a very strong engine, to say the least, and considering that Sargon III runs inside a just in time compiler, and hence retains most of the host CPU's speed, I decided to give Sargon III 10mn per move + ponder, and 5 mn to Prédateur without ponder. Hopefully the game will be interesting The game runs on my iMac (i5 CPU).

After 5 moves, Sargon III is out of book and just started to think :

[Event ""]
[Site "iMac with an i5 CPU"]
[Date "2011.10.09"]
[Round ""]
[White "Sargon III Amiga 500, 10mn/mv"]
[Black "Prédateur 2.x beta, 5mn/mv"]
[ECO "A05"]
[Result "*"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 Nf6 4.O-O O-O 5.d3 c5 *

[d]rnbq1rk1/pp1pppbp/5np1/2p5/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w - - 0 6

[JuLieN]

Sargon played 6. c2-C4, after actually thinking for half an hour, and Prédateur, now out of book too, answered with d7-d6, after only one minute of thinking...

[Event ""]
[Site "iMac with an i5 CPU"]
[Date "2011.10.09"]
[Round ""]
[White "Sargon III Amiga 500, 10mn/mv"]
[Black "Prédateur 2.x beta, 5mn/mv"]
[ECO "A05"]
[Result "*"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 Nf6 4.O-O O-O 5.d3 c5 *
6.c4 {-0.05/10 } d6 {+0.01/14 1:18m} *

[d]rnbq1rk1/pp2ppbp/3p1np1/2p5/2P5/3P1NP1/PP2PPBP/RNBQ1RK1 w - - 0 7



(If some Amigan here doesn't recognize Sargon's usual colors, it's because I'm running it inside a Workbench 3.1 OS.)

[JuLieN]

Sargon played Nc3 after another half hour, expecting Nc6 from Pred, but Prédateur, after a short 53s long pondering, went for Qb6 after disliking the line Nc6,Qb3,Qb6,Qxb6,axb6.

[Event ""]
[Site "iMac with an i5 CPU"]
[Date "2011.10.09"]
[Round ""]
[White "Sargon III Amiga 500, 10mn/mv"]
[Black "Prédateur 2.x beta, 5mn/mv"]
[ECO "A05"]
[Result "*"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 Nf6 4.O-O O-O 5.d3 c5 *
6.c4 d6 7.Nc3 Qb6 {0.00/13 53s} *

[d]rnb2rk1/pp2ppbp/1q1p1np1/2p5/2P5/2NP1NP1/PP2PPBP/R1BQ1RK1 w - - 2 8

(Hopefully I'm not spamming the forum: if you guys think I should update this thread less frequently, just say it. And btw, it's yet very late in Yuuurope, so I'll soon have to pause this hand-operated game.)

[JuLieN]

Sargon plays Qb3, expecting Qxb3,axb3,Nc6,Bg5,h6,Bd2,... with a 0.0 score.

Prédateur played the expected move, with the following PV: 8...Dxb3 9.axb3 Cc6 10.Fd2 Fd7 11.e4 Cb4 12.e5 Cg4 13.exd6 exd6 14.Ch4 Cxd3 15.Fxb7 Fxc3 ( 0.0 score too).

The pace of the game seems to be stable at 30mn for Sargon III (despite the 10mn/move setting) and a little bit less than 1mn for Prédateur (despite the 5mn/move setting...).

[Event ""]
[Site "iMac with an i5 CPU"]
[Date "2011.10.09"]
[Round ""]
[White "Sargon III Amiga 500, 10mn/mv"]
[Black "Prédateur 2.x beta, 5mn/mv"]
[ECO "A05"]
[Result "*"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 Nf6 4.O-O O-O 5.d3 c5 *
6.c4 d6 7.Nc3 Qb6 8.Qb3 Qxb3 {0.00/15 1:04m} *

[d]rnb2rk1/pp2ppbp/3p1np1/2p5/2P5/1qNP1NP1/PP2PPBP/R1B2RK1 w - - 0 9

[JuLieN]

Sargon played a bit faster, as the move was forced: axb3 (-0.24), and Prédateur answered with the non less expected Nc6 ( 9...Cc6 10.h3 Fe6 11.Fe3 a6 12.Cg5 Fd7 13.Tad1 h6 14.Cge4 Ca5 15.Cxf6+ exf6 16.g4 Cxb3; 0.0).

[Event ""]
[Site "iMac with an i5 CPU"]
[Date "2011.10.09"]
[Round ""]
[White "Sargon III Amiga 500, 10mn/mv"]
[Black "Prédateur 2.x beta, 5mn/mv"]
[ECO "A05"]
[Result "*"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 Nf6 4.O-O O-O 5.d3 c5 *
6.c4 d6 7.Nc3 Qb6 8.Qb3 Qxb3 9.axb3 Nc6 {0.00/14 1:17m} *

[d]r1b2rk1/pp2ppbp/2np1np1/2p5/2P5/1PNP1NP1/1P2PPBP/R1B2RK1 w - - 1 10

It's only the tenth move, and yet both sides castled and the queens were exchanged... It will be a looooong game, where Sargon's superior ending knowledge might end up doing the difference.

[JuLieN]

After having considered playing Bg5 up to the very last minute, Sargon decided for Bd2 (0.0) . To which Prédateur answered with Bd7 (10...Fd7 11.Ta3 Tac8 12.e4 Cg4 13.h3 Cf6 14.Taa1 h6 15.Fe3 a6 16.Tad1; 0.0 ).
Those engines do like symmetry...

[Event ""]
[Site "iMac with an i5 CPU"]
[Date "2011.10.09"]
[Round ""]
[White "Sargon III Amiga 500, 10mn/mv"]
[Black "Prédateur 2.x beta, 5mn/mv"]
[ECO "A05"]
[Result "*"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 Nf6 4.O-O O-O 5.d3 c5
6.c4 d6 7.Nc3 Qb6 8.Qb3 Qxb3 9.axb3 Nc6 10.Bd2 Bd7 {0.00/12 20s} *

[d]r4rk1/pp1bppbp/2np1np1/2p5/2P5/1PNP1NP1/1P1BPPBP/R4RK1 w - - 3 11

And that's all for today, folks. See you tomorrow.

[JuLieN]

Sargon: 11. Nb5 (-0.09)
Prédateur: 11. ..., a6 (11...a6 12.Cc3 e5 13.Tad1 Tac8 14.Cg5 Tcd8 15.Cge4 Cxe4 16.Cxe4 Ff5 17.h3 a5 18.h4 (-0.03))
Sargon: 12. Nc3 (-0.14)
Prédateur: 12. ..., Rac8 (12...Tac8 13.Tad1 Tce8 14.Fe3 e5 15.Cg5 Td8 16.h3 h6 17.Cge4 Cxe4 18.Cxe4 Ff5 (-0.02))
Sargon: 13. Na4 (0.0)
Prédateur: 13. ..., Rce8 (13...Tce8 14.Tad1 Fe6 15.Tfe1 Ff5 16.h3 h6 17.g4 Fd7 18.Cb6 Fe6 19.Fc3 Tb8 20.Tc1 Tbd8 (-0.02))
Sargon: 14. Nb6 (+0.06)
Prédateur: 14. ..., Be6 (14...Fe6 15.Tab1 h6 16.Tbd1 g5 17.Fc3 Cd7 18.Cxd7 Fxd7 19.Fxg7 Rxg7 20.e4 Ca5 21.Cd2 Cc6 (-0.02))
Sargon: 15. Bc3 (+0.01)
Prédateur : 15. ..., Nd7 (15...Cd7 16.Cxd7 Fxd7 17.Tad1 Fxc3 18.bxc3 Rg7 19.Tb1 Fg4 20.h3 Fd7 21.Tbc1 Ca5 22.b4 Cb3 23.Tcd1 (-0.03))
Sargon: 16. Nxd7 (+0.10)
Prédateur: 16. ..., Bxd7 (16...Fxd7 17.e3 Fxc3 18.bxc3 e5 19.Cd2 f5 20.Fd5+ Rg7 21.Tad1 g5 22.f4 exf4 23.exf4 g4 24.d4 Td8 (-0.03))
Sargon: 17. e3 (0.00)
Prédateur: 17. ..., Bxc3 (17...Fxc3 18.bxc3 e5 19.Cd2 f5 20.d4 h6 21.Tfd1 cxd4 22.cxd4 exd4 23.exd4 Cxd4 24.Fxb7 Ce2+ 25.Rg2 Cc3 (-0.02))
Sargon: 18. bxc3 (-0.19)
Prédateur: 18. ..., e5 (18...e5 19.Cd2 f5 20.d4 cxd4 21.Fd5+ Rg7 22.cxd4 g5 23.f3 exd4 24.exd4 Cxd4 25.Fxb7 Te2 26.Tad1 a5 (-0.01))
Sargon: 19. Nd2 (+0.13)
Prédateur: 19. ..., f5 (19...f5 20.d4 e4 21.Tac1 cxd4 22.cxd4 Cb4 23.Tcd1 h5 24.d5 Cd3 25.f3 exf3 26.Txf3 Rh7 27.Tdf1 (-0.02))

[Event ""]
[Site "iMac with an i5 CPU"]
[Date "2011.10.09"]
[Round ""]
[White "Sargon III Amiga 500, 10mn/mv"]
[Black "Prédateur 2.x beta, 5mn/mv"]
[ECO "A05"]
[Result "*"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 Nf6 4.O-O O-O 5.d3 c5
6.c4 d6 7.Nc3 Qb6 8.Qb3 Qxb3 9.axb3 Nc6 10.Bd2 Bd7
11.Nb5 a6 12.Nc3 Rac8 13.Na4 Rce8 14.Nb6 Be6 15.Bc3
Nd7 16.Nxd7 Bxd7 17.e3 Bxc3 18.bxc3 e5 19. Nd2 f5 *

[d]4rrk1/1p1b3p/p1np2p1/2p1pp2/2P5/1PPPP1P1/3N1PBP/R4RK1 w - - 0 20

[JuLieN]

Sargon: 20. Rfb1 (+0.13)
Prédateur: 20. ..., Rb8 (20...Tb8 21.b4 cxb4 22.cxb4 Ce7 23.Ta3 h6 24.f4 Rg7 25.Te1 g5 26.c5 dxc5 27.bxc5 Cg6 28.c6 bxc6 (0.00))
Sargon: 21. b4 (+0.31)
Prédateur: 21. ..., cxb4 (21...cxb4 22.cxb4 Ce7 23.b5 axb5 24.cxb5 Fe6 25.d4 Cd5 26.Ta7 Tfc8 27.Fxd5 Fxd5 28.Td1 Tc2 29.b6 (+0.01)
Sargon: 22. cxb4 (+0.23)
Prédateur 22. ..., Ne7 (22...Ce7 23.b5 axb5 24.cxb5 d5 25.e4 dxe4 26.dxe4 Tfc8 27.exf5 gxf5 28.Tb2 e4 29.Ta7 Tc1+ 30.Cf1 Cd5 31.b6 (+0.02))


[Event ""]
[Site "iMac with an i5 CPU"]
[Date "2011.10.09"]
[Round ""]
[White "Sargon III Amiga 500, 10mn/mv"]
[Black "Prédateur 2.x beta, 5mn/mv"]
[ECO "A05"]
[Result "*"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 Nf6 4.O-O O-O 5.d3 c5
6.c4 d6 7.Nc3 Qb6 8.Qb3 Qxb3 9.axb3 Nc6 10.Bd2 Bd7
11.Nb5 a6 12.Nc3 Rac8 13.Na4 Rce8 14.Nb6 Be6 15.Bc3
Nd7 16.Nxd7 Bxd7 17.e3 Bxc3 18.bxc3 e5 19. Nd2 f5
20.Rfb1 Rb8 21.b4 cxb4 22.cxb4 Ne7 *

[d]1r3rk1/1p1bn2p/p2p2p1/4pp2/1PP5/3PP1P1/3N1PBP/RR4K1 w - - 1 23

[JuLieN]

Sargon: 23. f4 (+0.35)
Prédateur: 23. ..., exf4 (23...exf4 24.gxf4 Fe6 25.b5 axb5 26.Txb5 b6 27.Ta6 Cc8 28.h4 Rg7 29.Cb3 Fd7 30.Tb4 Te8 31.Rf2 (+0.03)
Sargon: 24. exf4 (+0.26)
Prédateur: 24. ..., Tfc8 (24...Tfc8 25.d4 Cc6 26.Cf3 Tc7 27.d5 Ce7 28.Te1 Te8 29.Cd2 Rg7 30.Ted1 Tcc8 31.Tac1 Tcd8 32.Rf2 (+0.05))
Sargon: 25. d4 (+0.53)
Prédateur: 25. ..., h6 (25...h6 26.Te1 Cc6 27.Fxc6 Txc6 28.c5 dxc5 29.bxc5 g5 30.fxg5 hxg5 31.Cc4 Te6 32.Txe6 Fxe6 33.Tc1 (+0.05))

[Event ""]
[Site "iMac with an i5 CPU"]
[Date "2011.10.09"]
[Round ""]
[White "Sargon III Amiga 500, 10mn/mv"]
[Black "Prédateur 2.x beta, 5mn/mv"]
[ECO "A05"]
[Result "*"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 Nf6 4.O-O O-O 5.d3 c5
6.c4 d6 7.Nc3 Qb6 8.Qb3 Qxb3 9.axb3 Nc6 10.Bd2 Bd7
11.Nb5 a6 12.Nc3 Rac8 13.Na4 Rce8 14.Nb6 Be6 15.Bc3
Nd7 16.Nxd7 Bxd7 17.e3 Bxc3 18.bxc3 e5 19. Nd2 f5
20.Rfb1 Rb8 21.b4 cxb4 22.cxb4 Ne7 23.f4 exf4
24.exf4 Rfc8 25.d4 h6 *

[d]1rr3k1/1p1bn3/p2p2pp/5p2/1PPP1P2/6P1/3N2BP/RR4K1 w - - 0 26

Interestingly, the engines are so different that they rarely predict their opponent's answer... Sargon is starting to feel confident, and I must say the position looks good for white... And Prédateur is totally ignorant of what's happening in the center...

[JuLieN]

Sargon: 26. d5 (+0.70)
Prédateur: 26. ..., g5 (26...g5 27.fxg5 hxg5 28.c5 dxc5 29.d6 Cc6 30.bxc5 Cd8 31.Cb3 Ce6 32.Tb2 g4 33.Fd5 Td8 34.Tf1 Rg7 (+0.04))
Sargon: 27. fxg5 (+1.22)
Prédateur: 27. ..., hxg5 (27...hxg5 28.c5 dxc5 29.d6 Cc6 30.bxc5 Cd8 31.Ta5 Rg7 32.Tf1 Rg6 33.Cb3 Cc6 34.Fxc6 Fxc6 35.Cd4 Fe4 (+0.04))
Sargon: 28. c5 (+1.17)
Prédateur: 28. ... , dxc5 (28...dxc5 29.bxc5 Txc5 30.Txa6 bxa6 31.Txb8+ Rf7 32.Cb3 Tb5 33.Txb5 Fxb5 34.Cd4 Fd7 35.Rf1 Cg6 36.Cc6 g4 37.d6 (+0.04))

[Event ""]
[Site "iMac with an i5 CPU"]
[Date "2011.10.09"]
[Round ""]
[White "Sargon III Amiga 500, 10mn/mv"]
[Black "Prédateur 2.x beta, 5mn/mv"]
[ECO "A05"]
[Result "*"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 Nf6 4.O-O O-O 5.d3 c5
6.c4 d6 7.Nc3 Qb6 8.Qb3 Qxb3 9.axb3 Nc6 10.Bd2 Bd7
11.Nb5 a6 12.Nc3 Rac8 13.Na4 Rce8 14.Nb6 Be6 15.Bc3
Nd7 16.Nxd7 Bxd7 17.e3 Bxc3 18.bxc3 e5 19. Nd2 f5
20.Rfb1 Rb8 21.b4 cxb4 22.cxb4 Ne7 23.f4 exf4
24.exf4 Rfc8 25.d4 h6 26. d5 g5 27.fxg5 hxg5 28. c5 dxc5 *

[d]1rr3k1/1p1bn3/p7/2pP1pp1/1P6/6P1/3N2BP/RR4K1 w - - 0 29

Pred, I really have to teach you some rudimental positional play...