Author: Eelco de Groot
Date: 11:20:32 06/29/05
Go up one level in this thread
On June 29, 2005 at 10:23:49, Richard Pijl wrote:
>The following position occurred in an ICC game between Amateur and the Baron
>[D]2r5/p2nnkNp/1pq1p1pP/3pPp2/2rP4/P1P3Q1/3B1PP1/R4RK1 b - -
>To my surprise Baron didn't hesitate to sac the exchange on c3 and won the game,
>probably partly because Amateur didn't handle the endgame too well (exchange of
>queens was probably not a good idea).
> ply time nodes score pv
> 8(13)+ 0:01.21 154487 -0.11 Rc4xc3 (Bd2xc3) (Qc6xc3) (Qg3-f4) (Rc8-c4)
>
> (Rf1-d1) (Ne7-c6)
> 8(13)& 0:01.32 182496 -0.05 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Rc8-c4
> Rf1-d1 Ne7-c6 Ra1-c1 (Qc3xa3)
> 8(13). 0:01.54 228566 -0.05 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Rc8-c4
> Rf1-d1 Ne7-c6 Ra1-c1 (Qc3xa3)
> 9(14)& 0:02.31 410928 -0.10 Rc4xc3 Bd2xc3 Qc6xc3 Qg3xc3 Rc8xc3
> Rf1-c1 Rc3-c6 Ra1-b1 a7-a5
> 9(14). 0:02.75 507685 -0.10 Rc4xc3 Bd2xc3 Qc6xc3 Qg3xc3 Rc8xc3
> Rf1-c1 Rc3-c6 Ra1-b1 a7-a5
> 10(15)& 0:04.40 898270 -0.09 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Rc8-c4
> Rf1-d1 Ne7-c6 Ra1-c1 Qc3xa3 Rc1-b1
> 10(15). 0:04.67 963660 -0.09 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Rc8-c4
> Rf1-d1 Ne7-c6 Ra1-c1 Qc3xa3 Rc1-b1
> 11(17)& 0:10.22 2126162 +0.02 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Qc3-d3
> Ra1-c1 Rc8-c4 Rc1xc4 d5xc4 g2-g4 Qd3xa3
> g4xf5 (Ne7xf5)
> 11(17). 0:11.26 2371526 +0.02 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Qc3-d3
> Ra1-c1 Rc8-c4 Rc1xc4 d5xc4 g2-g4 Qd3xa3
> g4xf5 (Ne7xf5)
> 12(18)& 0:23.35 4924705 +0.05 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Rc8-c4
> Rf1-d1 Nd7-c5 Ra1-c1 Nc5-d3 Rc1xc3 Nd3xf4
> Rc3-b3
> 12(18). 0:25.87 5454433 +0.05 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Rc8-c4
> Rf1-d1 Nd7-c5 Ra1-c1 Nc5-d3 Rc1xc3 Nd3xf4
> Rc3-b3
> 13(20)& 0:56.30 10926628 +0.13 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Rc8-c4
> Rf1-d1 Ne7-c6 Ra1-c1 Qc3-b3 g2-g4 Nd7xe5
> g4xf5 Ne5-f3 Kg1-g2
> 13(20). 1:05.48 12854192 +0.13 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Rc8-c4
> Rf1-d1 Ne7-c6 Ra1-c1 Qc3-b3 g2-g4 Nd7xe5
> g4xf5 Ne5-f3 Kg1-g2
> 14(22)& 3:03.13 27705221 -0.03 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Rc8-c4
> Rf1-d1 Nd7-c5 Ra1-c1 Qc3-b3 Rc1-b1 Qb3-c3
> Rb1-a1 Nc5-e4 f2-f3
> 14(22). 4:04.20 38905297 -0.03 Rc4xc3 Bd2xc3 Qc6xc3 Qg3-f4 Rc8-c4
> Rf1-d1 Nd7-c5 Ra1-c1 Qc3-b3 Rc1-b1 Qb3-c3
> Rb1-a1 Nc5-e4 f2-f3
>
>Game:
>
>[Event "ICC 5 3"]
>[Site "Internet Chess Club"]
>[Date "2005.06.29"]
>[Round "-"]
>[White "Amateur"]
>[Black "thebaron"]
>[Result "0-1"]
>[ICCResult "White resigns"]
>[WhiteElo "2706"]
>[BlackElo "2752"]
>[Opening "French: Winawer, classical variation"]
>[ECO "C18"]
>[NIC "FR.11"]
>[Time "09:37:14"]
>[TimeControl "300+3"]
>
>1. d4 e6 2. e4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 f5 8.
>Qg3 cxd4 9. cxd4 Ne7 10. Bd2 O-O 11. Bd3 b6 12. Ne2 Ba6 13. Nf4 Qd7 14. h4
>Bxd3 15. Qxd3 Rc8 16. h5 Rc4 17. c3 Qc6 18. Qg3 Nd7 19. h6 g6 20. Nh5 Kf7
>21. Ng7 Rc8 22. O-O Rxc3 23. Bxc3 Qxc3 24. Qxc3 Rxc3 25. Rfc1 Rc4 26. Rxc4
>dxc4 27. Rc1 b5 28. Rb1 a6 29. Kf1 Nb6 30. Ke2 Nbd5 31. Rh1 Nc6 32. Rc1
>Nxd4+ 33. Ke1 c3 34. g3 a5 35. g4 fxg4 36. Rb1 b4 37. axb4 axb4 38. Kd1 c2+
>{White resigns}
>0-1
I'm not sure the exchange sac is entirely correct, Richard?
Several Pro Deo versions after a deep think settle on 22..Qc7 and none of them
consider 22..Rxc3
Pro Deo 1.1 Vulcan {9i9p}
00:00:00.2 -0,68 3 1540 Kf8 Qg5 b5
00:00:00.2 -0,73 4 2506 Kf8 Qg5 b5 Rab1
00:00:00.2 -0,67 5 5205 Kf8 Qg5 b5 Rab1 Qa6
00:00:00.2 -0,65 6 17185 Kf8 Qg5 b5 Rab1 Qa6 f3
00:00:00.3 -0,71 7 36410 Kf8 Qg5 b5 Rab1 Qb6 f3
00:00:00.4 -0,68 8 100248 Kf8 Rab1 b5 Qh4 a5 Rfe1
00:00:00.6 -0,68 9 350522 Kf8 Qg5 b5 Rab1 Qb6 f3 a5 g3 Qc7
00:00:01.0 -0,74 10 698466 Kf8 Qg5 b5 Rfb1 Ng8 Ra2 Nb6 Rab2 a6
00:00:01.9 -0,71 10 1548125 b5 Qg5 Ng8 Rab1 Kf8 g3 Ra4 Rb2
00:00:04.9 -0,69 11 4395277 b5 Qg5 Kf8 Rab1 Ng8 g3 Ra4 f3 a5 Rb3 Rc4
00:00:09.3 -0,72 12 8667923 b5 Qg5 Kf8 Rab1 a6 f3 Ng8 g4 Ne7 gxf5 Nxf5
00:00:41.4 -0,87 13 41036946 b5 Qg5 a5 Rab1 Kf8 Rb2 Ra4 Ra2
00:01:19.4 -0,85 13 78757938 Rf8 Qg5 Nc8 g4 Nc5 gxf5 exf5 f3 Nb3
00:02:25.2 -0,95 14 145361447 Rf8 Qg5 Nc8 f4 Qc7
00:03:06.7 -0,88 14 187824832 b5 Qg5 Qa6 Rfb1 Kf8 Ra2 Qc6 Qh4 Ng8
00:04:43.0 -0,77 14 284216573 Qc7 Qg5 Qd8 Rab1 Kg8
00:05:10.7 -0,77 14 311610256 Qa8
00:05:13.5 -0,73 14 314334887 Qa8 a4
00:06:22.6 -0,84 15 388713770 Qa8 a4
00:15:10.6 -0,80 15 936181604 Qc7 a4 Nc6 Qg5
Pro Deo 1.1 Vulcan Q1e - Tactical Engine
00:00:00.2 -5,54 1 37 Rxc3 Bxc3 Qxc3
00:00:00.2 -0,78 1 40 Kg8
00:00:00.2 -1,00 2 182 Kg8 Nh5
00:00:00.2 -1,63 3 997 Kg8 Qg5 Kf8
00:00:00.2 -1,25 3 1583 Kf8 Qg5 f4 Qxf4+
00:00:00.3 -1,34 4 2856 Kf8 Qg5 f4 g4
00:00:00.3 -1,25 5 11371 Kf8 Qh4 f4 Qxf4+ Nf5
00:00:00.3 -1,33 6 29429 Kf8 Qg5 b5 Rab1 f4 g4
00:00:00.4 -1,31 7 89010 Kf8 Qg5 b5 Rfb1 Qa6 Nxe6+ Qxe6 Rxb5
00:00:00.6 -1,36 8 284023 Kf8 Qg5 b5 Rfb1 Qa6 g3 R4c7 f3
00:00:01.1 -1,43 9 784953 Kf8 Qg5 b5 Rfb1 Qa6 f3 R4c7 g3 Rc4 Nxe6+ Qxe6 Rxb5
00:00:02.5 -1,43 10 2136026 Kf8 Qg5 b5 Rfb1 a6 a4 bxa4 Qh4 f4 Qxf4+
00:00:08.3 -1,70 11 8230378 Kf8 Rfb1 Ng8 a4 Nb8 Bc1 Nd7 Qg5 Nc5 Ba3 Qd7 dxc5
00:00:14.5 -1,57 11 14537865 b5 Qg5 Kf8 Rab1 a6 Rb4 Qb6 Rfb1 R4c7 f3 f4 Qxf4+
00:00:17.4 -1,33 11 17669215 Rf8 Qg5 Nc8 f3 Kg8 g4 f4 Nh5 b5 Nxf4
00:00:22.6 -1,46 12 23420887 Rf8 Qg5 Nc8 f3 Kg8 g4 f4 Nh5 Rf7 Nxf4 Ne7 Rab1 b5
00:00:35.3 -1,74 13 37789752 Rf8 Qg5 Nc8 f3 Kg8 Nh5 Kh8
00:03:47.3 -1,69 13 248791283 Qc7 Rfb1
00:09:00.2 -1,71 14 608154374 Qc7 Qh4 Rc6 Rfb1 Kf8
after 22..Rxc3 Vulcan Q1e expects 23.Qg5 which fails low but then is still at
+2.5 for White
00:00:00.2 5,64 1 7 Bxc3 Qxc3
00:00:00.2 4,25 2 198 Bxc3 Kg8
00:00:00.3 3,68 3 1079 Bxc3 Qxc3
00:00:00.3 3,68 4 4070 Bxc3 Qxc3
00:00:00.3 3,84 5 10715 Bxc3 Qxc3
00:00:00.3 4,00 6 59914 Bxc3 Qxc3
00:00:00.4 4,30 7 124198 Bxc3 Qxc3
00:00:00.4 4,30 8 174929 Bxc3 Qxc3
00:00:00.7 2,46 9 556496 Bxc3 Qxc3
00:00:01.6 3,92 9 1419653 Qg5 Rc2 Rac1 Rxc1 Rxc1 a6 Rxc6
00:00:02.8 3,94 10 2721381 Qg5 Rc4 Bb4 Ng8 Bd6 Rxd4 Rac1 Rg4 Qe3
00:00:17.2 3,04 11 18913928 Qg5 Rc2 Bb4 Ng8 Rfe1 Nxh6 Qxh6 Kg8 Bd6
00:00:40.4 3,15 12 45492558 Qg5 Rc2 Bb4 Ng8 Rfe1 Nxh6 Qxh6 Kg8 Bd6
00:02:10.8 2,91 13 156897133 Qg5 Rc4 Bb4 Ng8 Rfe1 Rxd4 Nxf5 exf5 e6+ Qxe6 Rxe6
Kxe6 f4 Ne5
00:04:25.0 3,18 14 321541125 Qg5 Rc2 Rfc1 Rxc1+ Rxc1 Re8 Rxc6 Nxc6
00:21:30.9 2,49 15 1617974682 Qg5 Rc4 Bb4 Ng8 Rfe1 Rxd4 f3 Nc5
Pro Deo 1.1 Ripley after 22.0-0
00:00:00.2 -3,81 1 16 Nxe5 dxe5
00:00:00.2 -2,74 1 156 Rxc3 Bxc3 Qxc3
00:00:00.2 -0,40 1 159 Kg8
00:00:00.2 -0,45 2 331 Kg8 Rab1
00:00:00.2 -0,80 3 1057 Kg8 Qg5 Kf8
00:00:00.2 -0,69 3 1540 Kf8 Qg5 b5
00:00:00.2 -0,74 4 2516 Kf8 Qg5 b5 Rab1
00:00:00.2 -0,68 5 5997 Kf8 Qg5 b5 Rab1 Qa6
00:00:00.3 -0,66 6 19671 Kf8 Qg5 b5 Rab1 Qa6 f3
00:00:00.3 -0,71 7 59856 Kf8 Qg5 b5 Rab1 Qb6 f3
00:00:00.4 -0,66 8 175496 Kf8 Qg5 b5 Rab1 a5 f3 Qa6 g3
00:00:00.7 -0,66 9 419197 Kf8 Qg5 b5 Rab1 a5 f3 Qa6 Rfe1 R4c7
00:00:01.1 -0,74 10 817316 Kf8 Qg5 b5 Rab1 a6 Rb3 Ng8 Rfb1 Nb6
00:00:02.0 -0,60 10 1698104 Rf8 Qg5 Nc8 g4 f4 Bxf4 Kg8 Bd2 b5
00:00:03.4 -0,68 11 3099950 Rf8 Qg5 Nc8 g4 Kg8 gxf5 exf5 f3 f4 e6 Nf6 Qxf4
00:00:07.0 -0,62 12 6795232 Rf8 Qg5 Nc8 Rab1 b5 g4 f4 Qxf4+ Kg8 Qh2 Rf7
00:00:17.0 -0,60 13 17576429 Rf8 Qg5 Nc8 Rab1 b5 Rfe1 Kg8 Nh5 Rf7 Nf4 Ne7 Qh4
00:02:20.7 -0,89 14 147231175 Rf8 Qg5 Nc8 f3 Kg8 Nh5 b5 Be1 a6 Nf6+
00:12:39.1 -0,56 14 768993795 Qc7 Qh4 Nc6 Bg5
22..Qa8 is close in eval:
Pro Deo 1.1 Vulcan {9i9r}
00:08:17.9 -0,79 15 509940894 Qa8 a4 R8c6
Pro Deo 1.1 Vulcan {9i9s}
00:04:48.4 -0,77 15 298886064 Qa8 a4 R8c6 Rfb1 a6 Qh4 Kf8 Rb4 a5 Rxc4 dxc4 Rb1
Nd5 f3
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