Author: John Merlino
Date: 11:44:59 07/17/02
Go up one level in this thread
On July 17, 2002 at 09:35:42, José Antônio Fabiano Mendes wrote: > Kunneman vs NN,Berlin 1934 > [D]6k1/pp3p1p/1qp3pB/3rb3/8/2P2QP1/PP3P1P/4R1K1 b > Source ==> http://www.chesscafe.com/REVIEWS/books.HTM > Dvoretsky gives the game continuation ==> > 1...Qxb2! 2 Qf6 Qxc3? 3. Qg7+ Bxg7 Re8+ 1-0. > However,the position turns out to be incredibly complex. > He devotes three pages of analysis to describe his conclusions about this > position. After 1...Qxb2! 2. Qf6 Black has 2...Qc1!! 3. Qxe5 Qxh6 ! > with equal chances. So he tries the alternative 2. Kg2 but concludes > 2...f5! is good. So he tries 2. Qe3 until one of his > students finds 2...Qa3!! Finally, he concludes that the > improvement of 2. g4!! f5 3. c4! is the correct solution. > But another defense, found later, of 3...Rd7! still gives > Black a draw. Current assessment of the position: Who knows!? Chessmaster 9000 needs one second (on a PIII-600) to find 1...Qxb2 and includes the 2.Qf6 line in the PV. After 34 seconds it scores it as a draw: Time Depth Score Positions Moves 0:00 1/3 -0.41 1953 1...Qxb2 2.Qf6 Qc1 0:00 1/4 0.14 4618 1...Qxb2 2.Qf6 Qc1 3.Qxe5 Qxh6 4.Qb8+ Qf8 5.Qxb7 0:00 1/4 -0.06 6018 1...f5 2.Qe2 Qd8 3.h4 0:00 1/4 -0.10 13396 1...Qa5 2.a3 Qd8 3.Qe2 g5 0:00 1/5 0.18 26284 1...Qa5 2.Qe2 b5 3.a3 Qd8 0:00 1/5 0.14 32030 1...f5 2.Qe3 Kf7 3.Qxb6 axb6 4.Bg5 0:01 1/6 0.20 69165 1...f5 2.Qe2 Kf7 3.Bg5 Qa5 4.b4 Qb5 0:01 1/6 0.07 88401 1...Qxb2 2.Qf6 Qc1 3.Qxe5 Qxh6 4.Qb8+ Kg7 5.Qxb7 Qd2 0:02 1/7 0.05 147898 1...Qxb2 2.Qf6 Qc1 3.Qxe5 Qxh6 4.Qb8+ Kg7 5.Qxb7 Qd2 6.Re7 Qd1+ 7.Kg2 0:04 1/8 0.05 338515 1...Qxb2 2.Qf6 Qc1 3.Qxe5 Qxh6 4.Qb8+ Kg7 5.Qxb7 Qd2 6.Re7 Qd1+ 7.Kg2 0:12 1/9 0.14 1019020 1...Qxb2 2.Qf6 Qc1 3.Qxe5 Qxh6 4.Qb8+ Kg7 5.Qxb7 Qd2 6.Re7 Rf5 7.Qxa7 Qc1+ 8.Kg2 Qxc3 0:34 2/10 0.00 2913245 1...Qxb2 2.Qf6 Qc1 3.Qxe5 Qxh6 4.Qb8+ Kg7 5.Qxb7 Qd2 6.Re7 Rf5 7.Qxa7 Qd1+ 8.Kg2 Qf3+ 9.Kg1 Qd1+ 1:54 3/11 0.00 10191079 1...Qxb2 2.Qf6 Qc1 3.Qxe5 Qxh6 4.Qb8+ Kg7 5.Qxb7 Qd2 6.Re7 Rf5 7.Qxa7 Qd1+ 8.Kg2 Qf3+ 9.Kg1 Qd1+ jm
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