Sunday, January 6, 2013

4 positions from game 17 Fidelity Phantom- MM II

During the 17th game, I have taken 4 positions which can be used as tests for your engine (or you).
The solutions are given at the end.
 
1k2r2r/pp2b1pp/2p3n1/Q3P3/PP1N2q1/2P5/3B2PP/R3R1K1 b - a3 0 25 ; game 17 Phantom - MMII black wins (hard)
 
1k6/p5pp/1b2r3/3QP3/PP4qn/2P5/R2B1rPP/4R2K w - - 7 32 ; game 17 Phantom - MMII white is lost even with their best move (hard)

1k6/p5pp/1b4r1/3QP3/PP4qn/2P5/R4rPP/2B1R2K w - - 9 33 ; game 17 Phantom - MMII white wins (hard)
 
4k3/4P1p1/p2Br3/P1P4p/1P5n/8/5b1P/5R1K w - - 0 44 ; game 17 Phantom - MMII white wins (easy)
 
 Solutions :
 
1/ unseen winning move 25...Nh4
2/ even the best move 32.... Bc1 (or Be3) is loosing, for instance look at the Fruit 2.1 analyses lines:
 
14/47 00:37   39 267 399 1 058 211 -2,48 1.Bc1 Rxa2 2.Qxa2 Rxe5 3.Qg8+ Kb7 4.Qf7+ Bc7 5.Rg1 Rh5 6.a5 a6 7.b5 Rxb5 8.Be3 Rb2 9.Bf2
14/48 00:52   56 288 295 1 072 223 -2,26 1.Be3 Rxa2 2.Qxa2 Bxe3 3.h3 Qxg2+ 4.Qxg2 Nxg2 5.Kxg2 Bd2 6.Rf1 Bxc3 7.Rf8+ Kb7 8.Rf7+ Kb6 9.Rxg7 Bxb4 10.Rxh7 Rxe5 11.Rd7
15/51 02:11  139 916 580 1 062 940 -2,25 1.Be3 Rxa2 2.Qxa2 Bxe3 3.h3 Qxg2+ 4.Qxg2 Nxg2 5.Re2 Nf4 6.Rxe3 Nd5 7.Rf3 Rxe5 8.Kg2 Re7 9.Kg3 Kb7 10.b5
3/ after 32...Rg6?? winning move 33. Rxf2
4/ after 43...a6?? winning move 44. b5

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