Author: John Merlino
Date: 13:31:51 02/28/01
Go up one level in this thread
On February 28, 2001 at 13:35:50, Sune Larsson wrote: > > [D]5nk1/2p3q1/1p1p1p2/3P1P1Q/2P1P1p1/5p2/PPB2P2/5K2 w - - 0 1 > > This is from Alekhine-Johner, Zurich 1934. A pawn down, black is about > to manoeuvre his knight to e5, with excellent prospects. On the other > hand the white bishop is in the need of more space, free lines to feel > alive again. So Alekhine took a deep breath, played 1.e5! and said: > "I need some more air." Well it could have been that way anyhow...;) > > 1.e5! dxe5 [If 1.-fxe5 2.f6 Qxf6 3.Qxg4+ Kf7 4.Be4 with white advantage] > 2.d6! [The crux of white's combination. On 2.-cxd6 3.c5! is murderous] > 2.-c5 3.Be4 Qd7 4.Qh6 1-0 > > The end could be 4.-Nh7 5.Bd5+ Kh8 6.Qg6 Qd8 7.d7 > > Test: Well, a few of the positions sent were rather easy, so for a > change some real stuff to chew on... If your program plays > 1.e5! you really have something going... > > Sune CM8000 comes close, as 1.e5 is its second best move: Time Depth Score Positions Moves 0:00 2/6 1.88 14459 1. Ba4 Nh7 2. Bc6 Nf8 3. a3 Nh7 4. Qe8+ Nf8 0:00 3/7 1.67 45735 1. Ba4 Nh7 2. Qg6 Ng5 3. Bd7 Nxe4 4. Qe8+ Kh7 5. Qxe4 Qxd7 6. Qxg4 0:01 3/8 1.53 114561 1. Ba4 Nh7 2. Kg1 Ng5 3. Qe8+ Qf8 4. Qg6+ Qg7 5. Bd7 Nh3+ 6. Kf1 Nf4 7. Qxg7+ Kxg7 0:03 4/9 1.47 272998 1. Ba4 Nh7 2. Bd1 Qg5 3. Qxg5+ Nxg5 4. Bc2 Nf7 5. Ba4 Ne5 6. Bb5 0:07 5/10 1.33 715093 1. Ba4 Nh7 2. a3 Qg5 3. Qxg5+ Nxg5 4. Bc2 Nf7 5. b3 Ne5 6. Ke1 Kf7 7. Kd2 0:23 6/11 1.32 2199424 1. Ba4 Nh7 2. a3 Qg5 3. Qxg5+ Nxg5 4. Bc2 Nf7 5. b3 Ne5 6. Ke1 Kf7 7. Kd2 Ke7 1:09 7/12 1.33 6602374 1. Ba4 Nh7 2. a3 Qg5 3. Qxg5+ Nxg5 4. Bc2 Nf7 5. b3 Ne5 6. Ke1 Kf7 7. Kd2 Ke7 8. Ke3 3:39 8/13 1.32 20960059 1. Ba4 Nh7 2. a3 Qg5 3. Qxg5+ Nxg5 4. Bc2 Nf7 5. b3 Ne5 6. Ke1 Kf7 7. Kd2 Ke7 8. Ke3 Kd7 jm
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