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   RandomVisitor has kibitzed 8565 times to chessgames   [more...]
   May-19-13 Spassky vs Fischer, 1972
 
RandomVisitor: After 13.Kh1 [DIAGRAM] Rybka 4.1 x64: [-0.05] d=28 13...Bd7 14.Nb1 Qb4 15.Qe3 Ne7 16.a3 Qa4 17.Nc3 Qc6 18.Na5 Qc5 19.Qxc5 dxc5 20.Nxb7 Nc6 21.Rab1 Nd4 22.Rfd1 Nxe2 23.Nxe2 Ba4 24.Rb2 Bc6 25.Nc3 f5 26.Na5 Bxe4 27.Nxe4 fxe4 28.Rb7 h4
 
   May-18-13 Staunton vs Von Der Lasa, 1853 (replies)
 
RandomVisitor: After 18...Qd7: [DIAGRAM] Rybka 4.1 x64: [+0.62] d=22 19.Nd2 Bb6 20.a4 a5 21.Rae1 Rag8 22.exd5 cxd5 23.d4 exd4 24.c4 Qc7 25.Qd3+ Kh8 26.Ndf3 Ng6 27.Nxg6+ Rxg6 28.Re8 Rxe8 29.Qxg6 Rg8 30.Qe6 d3 31.cxd5 Bxf2+ 32.Rxf2 Qc5 33.Qe1 Rc8 34.d6
 
   Apr-29-13 Fischer vs F Parham, 1964
 
RandomVisitor: Early improvements worth investigating: 11...Qxd6, 12...Ne7, 17.exd6
 
   Apr-08-13 D Byrne vs Fischer, 1956
 
RandomVisitor: 11.Be2 analysis Rybka 4.1 [+0.18] d=32 11...Re8 12.Qa3 Nh5 13.Be3 Qc7 14.e5 e6 15.0-0 f6 16.exf6 Nxf6 17.Rfe1 Nbd5 18.Bg5 Bf5 19.Ne5 a5 20.Bd3 Qb6 21.Nxd5 Nxd5 22.Bc4 h6 [+0.21] d=32 11...Nfd7 12.Qa3 Re8 13.e5 Nf8 14.Be3 Be6 15.Ng5 Bc4 16.Bxc4 Nxc4 17.Qb3 b5 18.0-0 a6 19.h3 ...
 
   Mar-17-13 R Cross vs D A Levy, 1971
 
RandomVisitor: After 6.Nxb5: [DIAGRAM] Rybka 4.1 x64: [+0.31] d=25 6...e6 7.dxe6 Qa5+ 8.Nc3 fxe6 9.Nf3 Be7 10.Bd2 Qb6 11.e3 Nc6 12.Bb5 0-0 13.0-0 d5 14.a4 Na7 15.Qe2 Nxb5 16.axb5 Bd7 17.Ne5 [+0.56] d=25 6...g6 7.Nc3 Bg7 8.e4 0-0 9.Nf3 e6 10.Be2 exd5 11.exd5 d6 12.0-0 Nbd7 13.Bb5 Ba6 ...
 
   Mar-15-13 Minic vs Fischer, 1970 (replies)
 
RandomVisitor: Final look after 12...Nd7: Rybka 4.1 x64: [+0.23] d=27 13.f5 0-0 14.Rg1 b4 15.Nce2 e5 16.f6 exd4 17.fxe7 Re8 18.Nxd4 Ne5 19.Qf4 Qc5 20.Rg3 Rxe7 21.Nf5 Rc7 22.Rg2 Qa5 23.Kb1 Be6 24.b3 Ng6 25.Qf2 Rc5 26.Nxd6
 
   Mar-12-13 Argue (replies)
 
RandomVisitor: <Caissanist><OK, everybody, what's 6 ÷ 2(1+2) ?>A sequence of ASCII characters, what else?
 
   Mar-11-13 A J Goldsby (replies)
 
RandomVisitor: Congratulations on your recent tournament performance. It took me a while to understand the passion you have for the game of chess and the intensity of your dedication. Good luck in your continued efforts.
 
   Mar-09-13 J Levin vs A Sandrin, 1946 (replies)
 
RandomVisitor: This game tracks the "game of the century" up to move 10.Qd3 when Byrne played 10.Qc5 - perhaps Fischer was even aware of it.
 
   Mar-09-13 Fischer vs Mednis, 1957
 
RandomVisitor: After 17...Bf8: [DIAGRAM] Rybka 4.1 x64: [+1.10] d=24 18.Qh5 Nc4 19.Nge2 Ne3 20.Nf4 Nxf5 21.Qf3 Qb6 22.Nce2 a5 23.g4 Ne7 24.c3 b4 25.cxb4 axb4 26.Nh5 Ng8 27.Nef4 [+1.10] d=24 18.Nh3 exf5 19.Qh5 Rg8 20.Ne2 Be6 21.Nef4 Ke7 22.Qf3 Kd7 23.Nh5 Kc7 24.Nf6 Rh8 25.Nf4 Qb4 26.c3 Qe7 ...
 
(replies) indicates a reply to the comment.

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 174 OF 238 ·  Later Kibitzing>
May-02-09  DanLanglois: <RV>, have you got anything for 17. h3 <h6>.
May-02-09  kormier: section C <DanLanglois> 17.h3,h6.by.
May-02-09
Premium Chessgames Member		  RandomVisitor: Proposed mainline:

<17.h3 Be5 18.Be3>

_______________________________________________

<Section A - Older Analysis>

[-0.23] d=28 16...Bc7 17.h3 Be5 18.Be3 Na6 19.g4 <Re8> 20.Qd2 Nb4 21.Bg5 h6 22.Bf4 h5 23.Bxe5 Qxe5 24.f4 Qb8 25.g5 Nfd5 26.Nxd5 Nxd5 27.Bxd5 cxd5 28.Kg2 Bd7 29.b3 Re4 30.Rf1 Qd6 (30:03.27) 31196783kN

[-0.13] d=28 16...Bc7 17.h3 Be5 18.Be3 Na6 19.g4 <Nb4> 20.Nf5 Rxd1 21.Rxd1 Qc7 22.Qb1 Be6 23.Bd4 g6 24.Bxe5 Qxe5 25.Nd4 Bd5 26.Nxd5 Nfxd5 27.e3 Nb6 28.b3 Qe7 (46:30.58) 36469476kN

[-0.13] d=27 16...Bc7 17.h3 Be5 18.Be3 Na6 19.g4 Nb4 20.Nf5 Rxd1 21.Rxd1 Qc7 22.Qb1 Be6 23.Bd4 g6 24.Bxe5 Qxe5 25.Nd4 Bd5 26.Nxd5 Nfxd5 27.e3 Nb6 28.b3 Qe7 29.Nf3 (18:19.09) 14914773kN

_______________________________________________

<Section B - Current Position>

[-0.23] d=29 17.h3 Be5 18.Be3 Na6 19.g4 <Re8> 20.Qd2 Nb4 21.Bg5 h6 22.Bf4 h5 (11:57.27) 11355331kN

[-0.14] d=25 17.h3 Be5 18.Be3 Na6 19.g4 <Nb4> 20.Nf5 Rxd1 21.Rxd1 Qc7 22.Qb1 Be6 23.Bd4 g6 24.Bxe5 Qxe5 25.Nd4 Bc4 26.Nf3 Qe7 27.Nd2 Be6 28.Qc1 Re8 (24:47.57)

[-0.28] d=25 17.Bf3 h6 18.Kg2 Re8 19.Kg1 Be5 20.e4 Bc7 (30:49.23)

[-0.36] d=25 17.Bg5 h6 18.Bxf6 (39:39.24)

[-0.36] d=24 17.Bf4 Bxf4 18.gxf4 Bg4 19.h3 Bh5 20.Rd2 h6 21.Rbd1 Qc7 22.Nb1 Qb6 23.Nc3 Re8 24.Rc1 Rac8 25.e4 Bg6 26.f5 Bh5 27.Re1 (17:40.17)

[-0.37] d=23 17.e4 Bg4 18.f3 Ne6 19.Be3 Nxd4 20.Rxd4 Rxd4 21.Bxd4 Be6 22.Qf2 Qb4 23.Rd1 Rd8 24.Bf1 h6 25.Bc5 Qb3 26.Rxd8 Bxd8 27.Qd2 Nd7 28.Bf2 Be7 29.f4 f6 30.f5 (8:55.31)

[-0.36] d=21 17.Bf1 Na6 18.e4 Bg4 19.Nf5 Bxf5 20.exf5 Nb4 21.Qe2 Qc5 22.Bh3 Rxd1 23.Qxd1 Rd8 24.Qe2 Nbd5 (18:22.31) 2729216kN

_______________________________________________

<Section C - 17.h3>

[-0.23] d=29 17.h3 Be5 18.Be3 Na6 19.g4 <Re8> 20.Qd2 Nb4 21.Bg5 h6 22.Bf4 h5 (11:57.27) 11355331kN

[-0.21] d=27 17...Be5 18.Be3 Na6 19.Rd2 Bd7 20.Qb3 Nb4 21.g4 c5 22.Nf5 Bxf5 23.gxf5 Rxd2 24.Bxd2 Rc8 25.Qc4 Rd8 26.Bg5 b6 27.e3 h6 28.Bh4 Rd2 29.Ne4 Rxb2 30.Nxf6 gxf6 31.Rxb2 (15:32.54) 10438476kN

[-0.06] d=23 17...Be6 18.Be3 Bd7 19.Nf5 Bxf5 20.Qxf5 Ne6 21.Qc2 h6 (10:31.18) 3908144kN

[+0.00] d=23 17...Bd7 18.e4 Re8 19.Be3 Rac8 20.Nde2 Na6 21.Nd4 Nc5 22.Nde2 Na6 23.Nd4 Nc5 24.Nde2 Na6 25.Nd4 Nc5 26.Nde2 Na6 27.Nd4 Nc5 28.Nde2 Na6 29.Nd4 Nc5 30.Nde2 Na6 31.Nd4 Nc5 32.Nde2 Na6 (14:07.47) 5120666kN

_______________________________________________

<Section C1 - 17.h3 h6>

[+0.00] d=19 18.e4 Re8 19.Re1 Bd7 20.e5 Rad8 21.f4 Nh5 22.Kh2 f6 23.Bd5+ cxd5 24.Nxd5 Qf8

[-0.12] d=19 18.Bf4 Bxf4 19.gxf4 g6 20.e3 Na6 21.Qe2 Nc7 22.Rbc1 Ne6 23.Nb3 Qb4 24.Qc2 Rxd1+ 25.Rxd1 Kg7 26.Nd4 Nc5

[-0.17] d=19 18.e3 Be5 19.Nce2 Na6 20.Bd2 Nb4 21.Nf5 Qf8 22.Bxb4 Rxd1+ 23.Rxd1 axb4 24.Nfd4 Qe7 25.Nf3 Bc7 26.Nfd4 Bd7 27.Nf4

[-0.26] d=18 18.Ra1 Be5 19.Be3 Na6 20.Nf5 Bxf5 21.Qxf5 Bxg3 22.Qxa5 Bc7 23.Qf5 Rxd1+ 24.Rxd1 Be5

_______________________________________________

<Section D - 17.h3 Be5 18.Be3>

<thanks Dionyseus>

[-0.16] d=25 18...Na6 19.Nf5* Bxf5 20.Qxf5 Bxg3 21.Qxa5 Bc7 22.Qf5 Be5 23.Bf4 Bxf4 24.Qxf4 Qb4 25.Qxb4 Nxb4 26.Kh2 g6 27.Bf3 Kf8 28.Kg3 h6 29.b3 Kg7 30.e3 05:06:31 5531mN

*19.g4 Nb4 20.Nf5 Rxd1 21.Rxd1 Qc7 22.Qb1 Be6 23.Bd4 g6 24.Bxe5 Qxe5 25.Nd4 Bc4 26.Nf3 Qe7 27.Nd2 now scores -0.11/24 27...Bd5 28.Nxd5 cxd5 29.e3 h5

_______________________________________________

<Section E - 17.h3 Be5 18.Be3 Na6 19.g4>

[-0.19] d=24 19...Re8 20.Nf5 [20.Qd2 Nb4 21.Bf4; 20.Qc1 Nb4 21.Bf4] Qc7 21.Rbc1 [21.Nd4] Nb4 22.Qb1 Bh2+ 23.Kf1 g6 24.Nh6+ [24.Nd6 Rxe3!] Kg7 25.Bd4 Be5 26.g5 Bxd4 27.Rxd4 Ng8 [27...Nh5 28.e3 f6 is much better for black] 28.Nxg8 Qh2 29.Rh4 Kxg8 30.Ne4 Nd5 31.Qd3 Be6 32.Qg3 Qxg3

[-0.15] d=23 19...Bd7 20.Ne4 Nd5 21.Bg5 f6 22.Bh4 Nf4 23.Bf1 Nb4 24.Qc4+ Nfd5 25.e3 Be8 26.Nf5 Qf8 27.Bg3 Bxg3 28.Nfxg3 Bf7 29.Qc5 Qxc5 30.Nxc5 b6 31.Nce4 Rd7

[-0.12] d=23 19...Nb4 20.Nf5 Rxd1+ 21.Rxd1 Qc7 22.Qb1 Be6 23.Bd4 g6 24.Bxe5 Qxe5 25.Nd4 Bd5 26.e4 Bc4 27.Qc1 Re8 28.Nf3 Qe7 29.e5 Nfd5 30.Rd4 Bb3

_______________________________________________

<Section F - 17.Bf3>

[-0.28] d=25 17.Bf3 h6 18.Kg2 Re8 19.Kg1 Be5 20.e4 Bc7 (30:49.23)

_______________________________________________

<Section G - 17.Bg5>

[-0.36] d=25 17.Bg5 h6 18.Bxf6 (39:39.24)

May-02-09  kormier: Hi <<RV>> current position: potential mobility; white 97--black 98. by by.
May-03-09  kormier: Hi <<RV>> in all his 3 comments on may-03-09, <Huggin> tell highly of Bd7: so i set-up after the propose line <17...Be5,Be3>; at d 26,it is (-0.15) p.s. i notice my software evaluation has always take white side.(It is propably -0.20 about).18...Bd7.19.Nf5, for now; to later, by by.
May-03-09  Dionyseus: <RV> After 17....Be5 18. Be3 Na6 19. Nf5 Bxf5 20. Qxf5 Bxg3 21. Qxa5 Bc7 22. Qf5 Be5


click for larger view

I have:
Analysis by Rybka 3 x64 4CPU:

23.Bf4 Rxd1+ 24.Rxd1[] Bxc3 25.bxc3 Qxe2 26.Rb1 Qe7 27.Be3 Rd8 28.a5 h6 29.c4 Rd7 30.Rb6 g6 31.Qb1 Nc5 32.Bxc5 Qxc5 33.Rxb7 Rxb7 34.Qxb7 Qxa5[] 35.Bxc6 Qg5+ 36.Bg2 Qc1+ 37.Bf1 Nh7 38.Qb8+ = (-0.13) Depth: 26 04:46:55 5584mN

May-03-09  Dionyseus: <kormier> <current position: potential mobility; white 97--black 98. >

How did you get those figures?

May-03-09  kormier: Hi <Dionyseus> on an empty board in one move: [a pawn is worth: 1 (or 2 if on it,s original square),a Kt;2,3,4,6 or 8,a B;7,9,11 or 13,a R always 14,the Q;21,23,25 or 27 and the K;3,5 or 8. Then add-up each individual single value to obtain a total amount of potential mobility, compare each side. There are other essential positional elements to take into account also. by.
May-04-09
Premium Chessgames Member		  truefriends: Is <18... Na6> the only plausible move after the 'proposed mainline' <17...Be5 18.Be3> ?
May-04-09
Premium Chessgames Member		  RandomVisitor: <All>Thanks for the comments. <truefriends>I have posted something for 18...Bd7.
May-04-09  kormier: <<RV>> <truefriends> i am set-up at depth 29 after the propose mainline,the evaluations i get are (-0.11) until now. by by.
May-05-09
Premium Chessgames Member		  RandomVisitor: Proposed mainline:

<17...Be5 18.Be3 Na6 or Bd7 or Re8>

_______________________________________________

<Section A - Older Analysis>

[-0.23] d=29 17.h3 Be5 18.Be3 Na6 19.g4 <Re8> 20.Qd2 Nb4 21.Bg5 h6 22.Bf4 h5 (11:57.27) 11355331kN

[-0.14] d=25 17.h3 Be5 18.Be3 Na6 19.g4 <Nb4> 20.Nf5 Rxd1 21.Rxd1 Qc7 22.Qb1 Be6 23.Bd4 g6 24.Bxe5 Qxe5 25.Nd4 Bc4 26.Nf3 Qe7 27.Nd2 Be6 28.Qc1 Re8 (24:47.57)

_______________________________________________

<Section B - Current Position>

[-0.18] d=30 17...Be5 18.Be3 Na6 19.g4 Re8 20.Nf5 Qc7 21.Nd4 Nb4 22.Qc1 Be6 23.Nxe6 Rxe6 24.Rd2 h6 25.Qd1 Ree8 26.Qf1 Rad8 27.Rbd1 Rd6 28.Rxd6 Bxd6 29.Rd2 Bh2 (53:53.55) 47766228kN

[-0.21] d=27 17...Be5 18.Be3 Na6 19.Rd2 Bd7 20.Qb3 Nb4 21.g4 c5 22.Nf5 Bxf5 23.gxf5 Rxd2 24.Bxd2 Rc8 25.Qc4 Rd8 26.Bg5 b6 27.e3 h6 28.Bh4 Rd2 29.Ne4 Rxb2 30.Nxf6 gxf6 31.Rxb2 (15:32.54) 10438476kN

[+0.00] d=25 17...Be6 18.Bg5 Be5 19.e3 Bxd4 20.Rxd4 h6 21.Bxf6 Qxf6 22.Nd5 Bxd5 23.Bxd5 Ne6 24.Bxe6 Qxe6 25.Rg4 Rd7 26.b4 axb4 27.Rgxb4 Qe7 28.Re4 Qf6 29.Reb4 Qe7 30.Re4 Qf6 31.Reb4 Qe7 32.Re4 Qf6 (21:02.23)

[+0.00] d=25 17...h6 18.e4 Re8 19.Re1 Bd7 20.Be3 Nfxe4 21.Bd2 f5 22.b4 axb4 23.Nxe4 Nxe4 24.Rxb4 Ba5 25.Bxe4 Bxb4 26.Bxf5 Bxf5 27.Nxf5 Qc5 28.Nxh6 Kh8 29.Rxe8 Rxe8 30.Nf7 Kg8 31.Nh6 Kh8 32.Nf7 Kg8 (22:31.57)

[+0.00] d=23 17...Bd7 18.e4 Re8 19.Be3 Rac8 20.Nde2 Na6 21.Nd4 Nc5 22.Nde2 Na6 23.Nd4 Nc5 24.Nde2 Na6 25.Nd4 Nc5 26.Nde2 Na6 27.Nd4 Nc5 28.Nde2 Na6 29.Nd4 Nc5 30.Nde2 Na6 31.Nd4 Nc5 32.Nde2 Na6 (14:07.47) 5120666kN

_______________________________________________

<Section C - 17...h6>

[+0.00] d=25 18.e4 Re8 19.Re1 Bd7 20.Be3 Rad8 21.Rbd1 Bc8 22.Nf5 Bxf5 23.exf5 Rxd1 24.Qxd1 Be5 25.Qc2 Na6 26.Ba7 Nb4 27.Qd1 Qc7 28.Bd4

[-0.12] d=24 18.Bf4 Bxf4 19.gxf4 Bd7 20.e3 Na6 21.Qe2 Qb4 22.f5 Be8 23.Rd2 Rd6 24.Rbd1 Rad8 25.Qf1 Qb6 26.Qe1 Kh8 27.Qe2 Nc5

[-0.23] d=24 18.e3 Be5 19.Nce2 Ne6 20.Nf5 Rxd1+ 21.Qxd1 Qf8 22.e4 Nc5 23.Qc2 Bxf5 24.exf5 Na6 25.Be3 Nb4 26.Qb3 Qc8 27.g4 Nfd5 28.Bc5 Qc7 29.Rd1 Re8 30.Nc3 b6 31.Bxd5 bxc5 32.Bc4

_______________________________________________

<Section D - 17...Be5>

<next best other than 18.Be3>

[-0.38] d=25 18.Nf3 Rxd1 19.Nxd1 Bc7 20.Nd4 Qd6 21.Bf4 Qxd4 22.Bxc7 Nxa4 23.Ra1 Nb6 24.Qc3 Qxc3 25.Nxc3 Nbd5 26.Nxd5 Nxd5 27.Bxd5 cxd5 28.Rxa5 Rxa5 29.Bxa5 Bxh3 (6:55.46)

_______________________________________________

<Section D1 - 17...Be5 18.Be3>

<thanks Dionyseus>

[-0.16] d=25 18...Na6 19.Nf5 Bxf5 20.Qxf5 Bxg3 21.Qxa5 Bc7 22.Qf5 Be5 23.Bf4 Bxf4 24.Qxf4 Qb4 25.Qxb4 Nxb4 26.Kh2 g6 27.Bf3 Kf8 28.Kg3 h6 29.b3 Kg7 30.e3 05:06:31 5531mN

<17...Be5 18.Be3 Bd7>

[-0.06] d=24 19.Nf5 Bxf5 20.Qxf5 Nb3 21.Qc2 Nd4 22.Bxd4 Bxd4 23.e3 Be5 24.Ne4 Nxe4 25.Qxe4 Bf6 26.Qxe7 Bxe7 27.f4 f5 28.Kf2 g6 29.g4 Bc5 30.Bf3 Rxd1 31.Rxd1 Re8 (31:57.57) 4639311kN

[-0.12] d=23 19.g4 h6 20.Nf3 Bd6 21.Rbc1 Be6 22.Nd4 Rac8 23.Rd2 Qe8 24.Rdd1 Bc7 25.Rb1 Qe7 26.Rd2 Rb8 27.Rbd1 (21:00.57) 2964172kN

[-0.30] d=23 19.f4 Bxd4 20.Bxd4 Bf5 21.Qxf5 Rxd4 22.Rxd4 Qe3 23.Kf1 Qxd4 24.Rd1 Qe3 25.Bf3 Re8 26.h4 Kf8 27.Qc2 h6 28.Rd6 Qe7 29.Rd4 Ne6 30.Rd3 Qb4 31.Qd2 Nc5 32.Rd6 (22:51.58) 3241773kN

<17...Be5 18.Be3 Re8>

[+0.00] d=24 18...Re8 19.Bc1 Bxd4 20.Rxd4 Qe5 21.Rf4 Ne6 22.Rf5 Qd6 23.Rxf6 gxf6 24.Ne4 Qe5 25.f4 Qd4 26.e3 Qd8 27.Qc3 Kg7 28.b3 Nxf4 29.exf4 Bf5 30.Bb2 Rxe4 31.Bxe4 Bxe4 32.Re1 Bd5 33.Re8 Qb6 (5:23.24) 2142846kN

[-0.14] d=23 18...Re8 19.g4 Be6 20.Nxe6 (0:03.41) 15892kN

_______________________________________________

<Section D2 - 17...Be5 18.Be3 Na6 19.g4>

[-0.19] d=24 19...Re8 20.Nf5 [20.Qd2 Nb4 21.Bf4; 20.Qc1 Nb4 21.Bf4] Qc7 21.Rbc1 [21.Nd4] Nb4 22.Qb1 Bh2+ 23.Kf1 g6 24.Nh6+ [24.Nd6 Rxe3!] Kg7 25.Bd4 Be5 26.g5 Bxd4 27.Rxd4 Ng8 [27...Nh5 28.e3 f6 is much better for black] 28.Nxg8 Qh2 29.Rh4 Kxg8 30.Ne4 Nd5 31.Qd3 Be6 32.Qg3 Qxg3

[-0.15] d=23 19...Bd7 20.Ne4 Nd5 21.Bg5 f6 22.Bh4 Nf4 23.Bf1 Nb4 24.Qc4+ Nfd5 25.e3 Be8 26.Nf5 Qf8 27.Bg3 Bxg3 28.Nfxg3 Bf7 29.Qc5 Qxc5 30.Nxc5 b6 31.Nce4 Rd7

[-0.12] d=23 19...Nb4 20.Nf5 Rxd1+ 21.Rxd1 Qc7 22.Qb1 Be6 23.Bd4 g6 24.Bxe5 Qxe5 25.Nd4 Bd5* 26.e4 Bc4 27.Qc1 Re8 28.Nf3 Qe7 29.e5 Nfd5 30.Rd4 Bb3

*25...Bc4 26.Nf3 Qe7 27.Nd2 now scores -0.11/24 27...Bd5 28.Nxd5 cxd5 29.e3 h5

_______________________________________________

<Section E - 17...Be6>

[+0.00] d=23 18.Bg5 Be5 19.e3 Bxd4 20.Rxd4 h6 21.Bxf6 Qxf6 22.Nd5 Bxd5 23.Bxd5 Qe7 24.Bc4 Rxd4 25.exd4 (10:16.16) 3954790kN

[-0.06] d=22 18.Be3 Bd7 19.Nf5 Bxf5 20.Qxf5 Ne6 21.Qc2 h6 (5:34.54) 2030246kN

[-0.10] d=22 18.e3 Rxd4 (6:32.24) 2569749kN

May-06-09  kormier: Hi <<RV>> current position: potential mobility; white 97 - black 102. by by.
May-06-09
Premium Chessgames Member		  SoltanGris: Could you run 18...Re8?

14: May509 - Rybka 3,

Analysis by Rybka 3 :

1. = (-0.14): 18...Re8 19.Nf5
2. = (-0.14): 18...Na6 19.g4 Nb4 20.Nf5 Rxd1+ 21.Rxd1 Qc7 22.Qb1 Be6 23.Bd4 g6 24.Bxe5 Qxe5 25.Nd4 Bc4 26.Qc1 Re8 27.g5 Nh5 28.Nf3 Qb8 29.e3 Bd3 30.Ne1 Bf5 31.Qd2

After 21 ply, 18...Re8 is the equal of 18...Na6

May-06-09
Premium Chessgames Member		  RandomVisitor: <SoltanGris>In Section C above I have:

<18.Be3 Re8>

[+0.00] d=24 18...Re8 19.Bc1 Bxd4 20.Rxd4 Qe5 21.Rf4 Ne6 22.Rf5 Qd6 23.Rxf6 gxf6 24.Ne4 Qe5 25.f4 Qd4 26.e3 Qd8 27.Qc3 Kg7 28.b3 Nxf4 29.exf4 Bf5 30.Bb2 Rxe4 31.Bxe4 Bxe4 32.Re1 Bd5 33.Re8 Qb6 (5:23.24) 2142846kN

[-0.14] d=23 18...Re8 19.g4 Be6 20.Nxe6 (0:03.41) 15892kN

May-06-09
Premium Chessgames Member		  SoltanGris: That's a big change going from d=23 to d=24!

19. Bc1 seems a much better line for white.

Seems like white found a draw. What does it look like ar d=25?

May-06-09
Premium Chessgames Member		  blue wave: <[-0.38] d=25 18.Nf3 Rxd1 19.Nxd1 Bc7 20.Nd4 Qd6 21.Bf4 Qxd4 22.Bxc7 Nxa4 23.Ra1 Nb6 24.Qc3 Qxc3 25.Nxc3 Nbd5 26.Nxd5 Nxd5 27.Bxd5 cxd5 28.Rxa5 Rxa5 29.Bxa5 Bxh3 (6:55.46)>

could you check 20.Nc3 Na6 21.Bf4 more deeply please. I think white may be able to get a good endgame. Black may have better then 20...Na6.

May-07-09  whatthefat: Hi <RandomVisitor>,

If you happen to get any free time, I'd be fascinated to see a move-by-move Rybka analysis of this game:

Kasparov vs Deep Blue, 1997

Kasparov's play is deep enough to outwit Deep Blue, and I think it would be extremely interesting to see how the evaluations of Rybka evolve across the game.

May-07-09
Premium Chessgames Member		  RandomVisitor: <blue wave>After 18.Nf3 Rxd1 19.Nxd1 Bc7 <20.Nc3> the computer likes 20...h6 or 20...g6, scoring roughly -0.40/17.

In any case, after 18.Nf3, 18...Rxd1 19.Nxd1 is virtually forced, and this will allow us some time to choose between 19...Bc7 and 19...Bd6 - two very good moves.

May-07-09
Premium Chessgames Member		  SoltanGris: RV, It took my dual core computer ten hours to calculate 3 billion nodes. One of your computers calculated 2.1 billion nodes in 5:23. I calculated from a position where Re8 was already made, so my calculation is one half move deeper at 23 and 24 ply, I believe.

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. g3 dxc4 6. Bg2 Nbd7 7. a4 Bb4 8. O-O O-O 9. Qc2 a5 10. Rd1 Qe7 11. Na2 Bd6 12. Qxc4 e5 13. Qc2 exd4 14. Nxd4 Nc5 15. Nc3 Rd8 16. Rb1 Bc7 17. h3 Be5 18. Be3 Re8

19.Bc1 h6 20.e4 Bc7 21.Re1 Bd7 22.e5 Rad8 23.f4 Nh5 24.Kh2 = (0.00) Depth: 24 10:00:44 2906mN

My analysis starts with having Re8 already made. My result is the same as yours. The score fell from -0.13 at depth 21 to 0.00 at depths 22, 23, and 24.

May-07-09
Premium Chessgames Member		  RandomVisitor: <SoltanGris>Thanks for that. I have one of my machines looking at the Re8 line now in the hopes that it will discover something. I will post something late this evening.
May-07-09
Premium Chessgames Member		  RandomVisitor: <whatthefat>I have a machine working on that now. I will post something this evening.
May-08-09
Premium Chessgames Member		  SoltanGris: 22 ply after <18. Be3 Re8 19. Bc1>, the three top moves are:

<(0.00): 19...Be6
(0.00): 19...Bd7
(0.00): 19...Rd8>

1. = (0.00): 19...Be6 20.Nxe6 Qxe6 21.Nd5 Nxd5 22.Qxc5 Qg6 23.Ra1 h6 24.Bxd5 cxd5 25.Qxd5 Bxg3 26.fxg3 Rad8 27.Qxd8 Qxg3+ 28.Kf1 Qxh3+ 29.Kg1 Qg3+ 30.Kh1 Qh3+

2. = (0.00): 19...Bd7 20.e4 Bc7 21.Be3 Rac8 22.Nde2 Na6 23.Nd4 Nc5 24.Nde2 Na6 25.Nd4 Nc5 26.Nde2 Na6 27.Nd4 Nc5 28.Nde2 Na6 29.Nd4 Nc5 30.Nde2 Na6 31.Nd4 Nc5 32.Nde2 Na6 33.Nd4 Nc5 34.Nde2 Na6

3. = (0.00): 19...Rd8

May-08-09
Premium Chessgames Member		  truefriends: Why is there no <Section - after 18.Be3 Na6>?
May-09-09  kormier: Hi <<RV>> current position: potential mobility; white 101 - black 102. by by.
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