Author: John Merlino
Date: 12:17:20 03/05/01
Go up one level in this thread
On March 05, 2001 at 14:11:51, Sune Larsson wrote: > > [D]3k4/1p4pP/4Rp2/3p3q/3N4/8/K2PP1PP/8 w - - 0 1 > > Kubbel, Shajmati 1925 > > In this position black can relax a bit. His main worry is the dangerous > pawn on h7, but now he's ready to send it to the blissful hunting-grounds. > Then he should be able to play for a win since white's pawns are somewhat > loose?! No, not this time monsigneur! Look above - the name Kubbel spells > brilliant co-operation of the white pieces. True - it's actually white > to move and win. This one is about covering and taking squares. And shows > what a rook and knight can do to a queen... > > > Test: White to move and win. The time for your program to find the correct > line, gives a clue about the performance in blitz, rapid game and > tournament level. Solution further down. > > > Sune > > > > > > > > > >Kubbel,L >Shajmati, 1925 > >1.Re3 Qxh7 2.Ne6+ Kc8 3.Rc3+ Kb8 4.Nf8 Qf5 5.e4 dxe4 6.Rc5 Qg4 7.h3 Qe2 8.Nd7+ >Ka7 9.Ra5+ 1-0 CM8000 failed on Re3 after about 3 minutes, so it MIGHT have taken the time to find it in tournament play, but it didn't report the PV until after 12:19 on a P3-600: Time Depth Score Positions Moves 0:00 1/4 0.51 7978 1. Rd6+ Ke8 2. h3 Qxh7 3. Rxd5 Qe4 0:00 3/6 -0.29 56211 1. h3 Qxh7 2. Rd6+ Ke8 3. Rxd5 Qe4 4. Rd6 Qxg2 0:01 3/6 0.41 99466 1. Rd6+ Kc7 2. Nb5+ Kc8 3. h3 Qxh7 4. Rxd5 Qc2+ 5. Ka3 Qb1 6. Nd4 0:03 4/7 0.25 252363 1. Rd6+ Ke8 2. Nf5 Qxh7 3. Rxd5 g6 4. Nd6+ Kf8 5. h3 Qc7 0:06 5/8 0.15 539486 1. Rd6+ Ke8 2. Nf5 Qxh7 3. Rxd5 Qxh2 4. Nxg7+ Kf8 5. Ne6+ Ke8 6. Kb3 Qxg2 7. Rd8+ Ke7 0:15 6/9 0.00 1470909 1. Rd6+ Ke8 2. Nf5 Qxh7 3. Rxd5 Qxh2 4. Nxg7+ Kf8 5. Ne6+ Ke8 6. Rd3 Qxg2 7. Rd8+ Ke7 0:55 7/10 -0.10 5523962 1. Rd6+ Ke8 2. Nf5 Qxh7 3. Rxd5 Qxh2 4. Nxg7+ Kf8 5. Nf5 Qxg2 6. Rd8+ Kf7 7. Rd7+ Ke6 2:59 8/11 -0.09 17986973 1. Rd6+ Ke8 2. Nf5 Qxh7 3. Rxd5 Qxh2 4. Nxg7+ Kf8 5. Nf5 Qxg2 6. Rd8+ Kf7 7. e4 Qf3 8. Rd7+ Ke8 12:19 8/11 2.10 68285185 1. Re3 Qxh7 2. Ne6+ Kc8 3. Rc3+ Kb8 4. Nf8 Qf5 5. e4 dxe4 6. Rc5 Qg4 7. h3 b6 8. hxg4 bxc5 15:23 9/12 2.10 86955071 1. Re3 Qxh7 2. Ne6+ Kc8 3. Rc3+ Kb8 4. Nf8 Qf5 5. e4 dxe4 6. Rc5 Qg4 7. h3 b6 8. hxg4 bxc5 jm
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