Zappa v Rybka Game 9 - a Caro-Kann

[rlsuth]

Transmission from the two links posted has stopped, but the game can still be viewed on playchess.com apparently.

Rybka has BPPP v B (opposite coloured bishops), but kibitzers are arguing over whether or not there's a win.

It's dead drawn. Rybka blundered by allowing the rooks to trade off.

Would you be able to post the position Richard?

Drat, I'll have to fire up Playchess again

[rlsuth]

[d] 8/8/b7/4pk2/6p1/4KpB1/8/8 b



Black cant make the white king move, and white's bishop keeps the black king out.

[Graham Banks]

Thanks Richard.

So Zappa will go into the final game leading 5-4

Well done Anthony - hard to lose the match from there!

[AdminX]

Thanks Richard.

So Zappa will go into the final game leading 5-4

Well done Anthony - hard to lose the match from there!

Yes, Zappa can't lose the match now only win it. The funny part is Zappa only needs a Draw to win it. Great Job Erdo and Anthony!

[Event "Blitz:10'+15"]
[Site "?"]
[Date "2007.09.26"]
[Round "9"]
[White "Zappa Mexico X64 "]
[Black "Rybka"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "180"]
[EventDate "2007.??.??"]
[TimeControl "600+15"]

{4MB, ZapM X Wihte.ctg, ZAPPA} 1. e4 {B/0 0} c6 {8} 2. d4 {B/0 0} d5 {6} 3. Nc3
{B/0 0} dxe4 {11} 4. Nxe4 {B/0 0} Nd7 {7} 5. Bc4 {B/0 0} Ngf6 {10} 6. Ng5 {
B/0 0} e6 {9} 7. Qe2 {B/0 0} Nb6 {9} 8. Bd3 {B/0 0} h6 {9} 9. N5f3 {B/0 0} c5 {
10} 10. dxc5 {B/0 0} Bxc5 {8} 11. Ne5 {B/0 0} Nbd7 {9} 12. Ngf3 {B/0 0} Nxe5 {
13} 13. Nxe5 {B/0 0} O-O {7} 14. O-O {B/0 0} b6 {8} 15. Bf4 {B/0 0} Qd4 {707}
16. Bg3 {0.38/18 160} Bb7 {190} 17. c4 {0.39/19 0} Qd8 {74} 18. Rad1 {
0.41/19 50} Qe7 {104} 19. Kh1 {0.38/19 58} Rfd8 {136} 20. a3 {0.27/18 130} Bd4
{(Sd7) 127} 21. Bh4 {0.24/18 278} Rd6 {(Lxe5) 73} 22. f4 {0.30/18 169} Rad8 {
(a5) 10} 23. Bb1 {0.28/17 186} Kf8 {35} 24. Rd3 {0.28/17 103} Qc7 {12} 25. b4 {
0.26/17 118} a5 {(La6) 72} 26. Re1 {0.12/17 165} Ba1 {99} 27. Rc1 {0.19/18 314}
Rd4 {(axb4) 72} 28. Rcd1 {0.16/17 134} Rxd3 {18} 29. Bxd3 {0.00/18 187} Bc3 {9}
30. bxa5 {-0.09/18 144} Bxa5 {64} 31. Bg3 {-0.06/18 33} Kg8 {61} 32. Bf2 {
-0.20/18 72} Bc3 {(Se4) 59} 33. Bg1 {-0.23/18 132} Ne4 {196} 34. Qc2 {
-0.19/20 0} Bxe5 {321} 35. fxe5 {-0.16/21 0} Qxe5 {(Sc5) 45} 36. Bxb6 {
-0.24/18 159} Rd6 {(Td7) 9} 37. Bg1 {-0.14/18 104} Qh5 {(Td7) 23} 38. Be3 {
-0.21/17 108} Ng3+ {(Lc6) 10} 39. Kg1 {0.28/7 1} Nf5 {(De5) 22} 40. Bf4 {
-0.80/17 131} Rd4 {458} 41. Be2 {-0.96/19 26} Qh4 {13} 42. Bc1 {-0.95/18 102}
Qd8 {10} 43. Rf1 {-0.95/18 114} Qc7 {11} 44. Rf2 {-0.96/18 118} Rh4 {18} 45. h3
{-0.95/19 105} Nd4 {32} 46. Qb2 {-0.96/19 107} Nxe2+ {8} 47. Qxe2 {-0.96/19 30}
Re4 {25} 48. Qf1 {-0.96/18 4} Rxc4 {(La6) 33} 49. Bf4 {-0.91/17 34} Qc6 {11}
50. Rb2 {-0.89/17 27} Rc3 {44} 51. Qb5 {-0.99/18 0} Qxb5 {14} 52. Rxb5 {
-1.04/18 0} Bd5 {21} 53. Bd6 {-1.03/18 19} Rc1+ {30} 54. Kf2 {-1.11/18 6} Rc2+
{13} 55. Ke1 {-1.10/19 72} Rxg2 {(Lxg2) 14} 56. Rc5 {-1.25/18 34} g5 {11} 57.
Rc3 {-1.32/18 18} Ra2 {16} 58. h4 {-1.36/18 29} f5 {(gxh4) 12} 59. hxg5 {
-1.24/17 31} hxg5 {7} 60. Rg3 {-1.25/18 22} g4 {26} 61. Rc3 {-1.43/18 3} Kf7 {
30} 62. Be5 {-1.74/18 24} Kg6 {(Lf3) 37} 63. Rc8 {-1.95/18 47} Rxa3 {(Lf3) 29}
64. Rg8+ {-1.61/17 29} Kf7 {15} 65. Rg7+ {-1.61/18 0} Kf8 {13} 66. Kd2 {
-1.93/18 38} Ra4 {(Ta5) 9} 67. Kc3 {-1.93/17 59} Re4 {(Ta1) 11} 68. Bf6 {
-1.92/16 1} Bc4 {(Tc4+) 18} 69. Kd2 {-2.14/18 48} Be2 {14} 70. Rg5 {-2.34/18 35
} Kf7 {(Lf3) 10} 71. Bh8 {-2.49/18 42} f4 {(Lf3) 35} 72. Re5 {-1.98/19 35} Rxe5
{(Lf3) 29} 73. Bxe5 {-1.98/12 1} f3 {10} 74. Ke3 {-2.15/26 26} Kg6 {10} 75. Bd6
{-2.15/26 30} Kf6 {(Kf5) 56} 76. Bg3 {-2.15/26 24} Kf5 {(Kg5) 136} 77. Bh2 {
-2.15/28 42} e5 {12} 78. Bg3 {-2.15/28 0} Bc4 {(Ld1) 64} 79. Bh4 {-2.15/30 60}
Ba6 {(Lb3) 56} 80. Bg3 {-2.15/28 35} Ke6 {(Kf6) 49} 81. Be1 {-2.15/27 23} Kd5 {
(Kf6) 47} 82. Bh4 {-2.15/29 40} Bb5 {(Ke6) 11} 83. Be1 {-2.15/27 30} Be2 {
(Lc6) 95} 84. Bf2 {-2.15/28 27} Bc4 {94} 85. Be1 {-2.15/28 0} Bb3 {(Ke6) 83}
86. Kd3 {-2.15/26 22} Kc6 {(Lc4+) 41} 87. Ke4 {-2.15/23 22} Kd6 {13} 88. Bb4+ {
-2.15/24 9} Kd7 {(Ke6) 24} 89. Be1 {-2.15/25 24} Ke6 {13} 90. Ke3 {-2.15/27 8}
Bc2 {(Ld5) 44} 1/2-1/2

[Eelco de Groot]

[d]8/8/8/3kp3/6p1/4Kp2/4bB2/8 b - -

Zappa's last move 84. Bf2


8/8/8/3kp3/6p1/4Kp2/4bB2/8 b - -

Engine: Toga II 1.3.4 Checkov 2c bitbases (256 MB)
by Thomas Gaksch and Fabien Letouzey

24 0:10 +4.91 6...Bc4 7.Bh4 Kd6 8.Ke4 Bb5 9.Bf2 Ke6
10.Ke3 Bd7 11.Bg3 Kf6 12.Ke4 Bc6+
13.Ke3 Bb5 14.Be1 Kf5 15.Bf2 Bd7
16.Bh4 Be8 17.Be1 e4 18.Bg3 Bb5
19.Bd6 (3.825.558) 360

Black can make no progress it seems...
Incredible!
Eelco

[Graham Banks]

Thanks Richard.

So Zappa will go into the final game leading 5-4

Well done Anthony - hard to lose the match from there!

Yes, Zappa can't lose the match now only win it. The funny part is Zappa only needs a Draw to win it. Great Job Erdo and Anthony!

Yes - the credit is definitely Erdo's also.

[Nid Hogge]

Draw agreed.. Poor endgame by Rybka. 71..f4 probably the mistake.

Too bad for Rybka, but great for computer chess!

Good job Anthony&Erdo!

[George Tsavdaris]

Could you please post the position Richard?

Rybka made an amazing blunder playing 71...f4? and making the game a draw! It was outplaying Zappa all game long, and in the endgame managed to turn the good position to a win and suddenly played this stupid move so lost the half point.

Rybka played 71...f4? here losing the win:
[d]7B/5k2/4p3/5pR1/4r1p1/8/3Kb3/8 b - - 0 71

[AdminX]

Could you please post the position Richard?

Rybka made an amazing blunder playing 71...f4? and making the game a draw! It was outplaying Zappa all game long, and in the endgame managed to turn the good position to a win and suddenly played this stupid move so lost the half point.

Rybka played 71...f4? here losing the win:
[d]7B/5k2/4p3/5pR1/4r1p1/8/3Kb3/8 b - - 0 71

Yes George,

That's how I felt also. I have seen the human side of chess in this match and it came from Computers ....

[M ANSARI]

Yes Rybka went wrong with f4 ... there must have been a zillion ways to win this game ... all Rybka had to do is avoid a rook trade and keep white king out of the queening area ... then look for tactical opportunities to gain tempi. In many situations black can leave a piece hanging and not worry about it being taken due to an active pawn push. The only way that white can draw that is if rooks are off since then the king can get in the action. I tried this on my Quad against my version of Zappa Mexico and it was a very simple win. Rybka still needs some elementary endgame knowledge ... but man it plays a mean assed middle game. It is really impressive in this game how Rybka took control of the d file and punished Zappa for neglecting the d file. Rybka just needs a little more work in the endgame.