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Up Topic The Rybka Lounge / Test Positions / Karjakin-Radjabov, Sochi 2008
- - By MoKy (**) [sk] Date 2012-05-29 11:20
8/5k2/p3pp2/2P3p1/p2Pn3/3R4/K7/8 b - -

What is the best move?
Parent - By Akbarfan (***) [de] Date 2012-05-29 19:41
Analysis by Houdini 1.5a x64 1T:

1. -+  (-2.83): 39...Ke7 40.Ka3 g4 41.Kb4 g3 42.d5 a5+ 43.Ka3 exd5 44.Rxd5 f5
2. -+  (-2.83): 39...g4 40.Ka3 Ke7 41.Kb4 g3 42.d5 a5+ 43.Ka3 exd5 44.Rxd5 f5
Parent - By Akbarfan (***) [de] Date 2012-05-31 16:30
With more depths: :smile:

Analysis by Houdini 1.5a x64 1T:

Depth=27 (1/17)
1. -+  (-4.13): 1...Ke7 2.Rh3 g4 3.Rh4 f5 4.Rh7+ Kd8 5.Rh8+ Kc7 6.Rh7+ Kc6 7.Re7 Ng5 8.Rg7 Nf3
2. =/+  (-0.36): 1...Ke8 2.Kb2 Kd7 3.Ra3 g4 4.Kc2 g3 5.Ra1 f5 6.Kd3 e5 7.dxe5 Nxc5+ 8.Ke3 Ke6
- - By Fishpov (*) [fr] Date 2012-05-29 22:24
Analysis by Houdini 2.0c Pro x64: says Ke7
sorry Re7 is french notation R for Roi and and T for Tour (Rook)

...
1...g4 2.c6
  -+  (-2.33 --)   Profondeur: 25/74   00:02:25  1324mN, tb=384
1...g4 2.c6
  -+  (-2.08 --)   Profondeur: 25/74   00:02:27  1334mN, tb=437
1...g4 2.c6
  -/+  (-1.47 --)   Profondeur: 25/74   00:02:29  1356mN, tb=574
1...Re7
  -+  (-2.57 ++)   Profondeur: 25/74   00:03:26  1874mN, tb=650
1...Re7
  -+  (-2.82 ++)   Profondeur: 25/74   00:04:27  2434mN, tb=706
1...Re7
  -+  (-3.43 ++)   Profondeur: 25/80   00:07:37  4165mN, tb=996
1...Re7 2.Ra3 g4 3.Rb4 g3 4.d5 exd5 5.Txd5 a5+ 6.Rxa5 Cc3 7.Td3 g2 8.Tg3 a3 9.Txg2 a2 10.Txa2 Cxa2 11.Rb5 Rd7 12.Rc4 Rc6 13.Rd4 Cb4 14.Re4 Rxc5 15.Rf5 Cd5 16.Re4 Cb4 17.Rf5
  -+  (-3.83)   Profondeur: 25/80   00:14:33  8054mN, tb=1897
1...Re7 2.Te3 f5 3.Th3 g4 4.Th7+ Rd8 5.Th8+ Rc7 6.Rb2 g3 7.Tf8 Cf2 8.d5 exd5 9.Txf5 g2 10.Tg5 Cd3+ 11.Ra3 Cf4 12.Rxa4 Rc6 13.Rb3 a5 14.Tg4 d4 15.Tg8 d3 16.Rc3 Ce2+ 17.Rxd3 g1D 18.Txg1 Cxg1 19.Rd4 Cf3+ 20.Rc3 Rxc5 21.Rb3 Ce5 22.Ra3 Rb6 23.Rb2 Rb5 24.Rb3 a4+ 25.Ra2
  -+  (-3.96)   Profondeur: 26/80   00:20:06  11186mN, tb=2680
1...Re7
  -+  (-4.14 ++)   Profondeur: 27/80   00:30:14  16950mN, tb=3987
1...Re7 2.Te3
  -+  (-3.78 --)   Profondeur: 27/80   00:34:52  19536mN, tb=4326
1...Re7
  -+  (-4.47 ++)   Profondeur: 27/80   00:44:09  24789mN, tb=5598
1...Re7 2.Th3 g4 3.Th7+ Rd8 4.Th4 f5 5.Th8+ Rc7 6.Th7+ Rc6 7.Te7 Cg5 8.Tg7 Cf3 9.Ra3 Cxd4 10.Rb4 a3 11.Rxa3 Rxc5 12.Rb2 e5 13.Rc3 a5 14.Tc7+ Rd5 15.Rd2 a4 16.Ta7 g3 17.Ta5+ Re4 18.Re1 a3 19.Ta4 Rd5 20.Rf1 Cc2 21.Ta5+ Re4 22.Re2 f4 23.Ta4+ Rd5 24.Ta5+ Rd4 25.Rf3 e4+ 26.Rxf4 g2 27.Ta4+ Rd3
  -+  (-4.52)   Profondeur: 27/80   01:12:07  40748mN, tb=9002
Parent - - By MoKy (**) [sk] Date 2012-05-30 10:28
Well done Fishpov. 39...Ke7 is the only winning move, because 39...g4 fails due to ...

8/5k2/p3pp2/2P5/p2Pn1p1/3R4/K7/8 w - -

Karjakin have found it!
Parent - By Pia (***) [ru] Date 2012-05-31 08:31
Analysis by Deep Rybka 4.1 w32 & Pia:

1.c6 Ke7 2.d5[] exd5 3.c7 Kd7[] 4.Rxd5+[] Kxc7 5.Rf5[] Kc6 6.Rf4[] Kd5 7.Rxg4[] f5 8.Rg1 Nc5 9.Rd1+ Ke4 10.Re1+ Kd4 11.Rf1 Ke5 12.Ka3 f4 13.Kb4 Nb7 14.Kxa4 a5 15.Kb5 Nd8 16.Ka4
  =  (0.00)   Depth: 27   00:04:14  39756kN, tb=21605
Up Topic The Rybka Lounge / Test Positions / Karjakin-Radjabov, Sochi 2008

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