Author: Joachim Rang
Date: 07:13:15 05/05/03
Go up one level in this thread
On May 05, 2003 at 10:06:12, Andreas Stabel wrote: >On May 05, 2003 at 09:59:27, Joachim Rang wrote: > >>On May 05, 2003 at 09:40:48, Enrique Irazoqui wrote: >> >>>This is a study that Grigoriev published in 1931 as "white to move and win". I >>>think it is a mate in 28, but I'm not sure. I find the first move and the >>>maneuvre beautiful. >>> >>>[d]8/1p3p2/1p2p3/7p/2P1P3/k6P/6P1/4K3 w - - 0 1 >>> >>>Grigoriev,N - Study >>>Mate in 28?, 1931 >>>[El País, 3-5-2003] >>> >>>1.e5 Kb4 2.h4 Kxc4 3.g4 Kd4 4.gxh5 Kxe5 5.h6 Kf6 6.h5 b5 7.Kd2 b4 8.Kc2 e5 9.Kb3 >>>e4 10.Kxb4 e3 11.Kc3 b5 12.Kd3 b4 13.Kxe3 b3 14.Kd3 Kg5 15.h7 b2 16.Kc2 b1Q+ >>>17.Kxb1 Kxh5 18.h8Q+ Kg5 19.Qg7+ Kf5 20.Qxf7+ Ke4 21.Qe6+ Kf3 22.Qf5+ Ke3 23.Kc2 >>>Kd4 24.Qe6 Kc5 25.Kc3 Kb5 26.Qd6 Ka5 27.Kc4 Ka4 28.Qb4# 1-0 >>> >>>Enrique >> >>yes very beautiful. I found the idea without a comp and relized that whit will >>win any pawn race, but I overlooked the possibility for black not to advance its >>b pawns and to walk straight to the kingside. The beautiful move 6.h5! secures >>the win for white. I'm interested how long does todays programs need to find the >>solution? > >Ruffian 1.01: >18--> 16.61 -1.62 1. h4 f5 2. exf5 exf5 3. Kd2 Kb4 4. Kd3 b5 5. cxb5 > Kxb5 6. Kd4 Kc6 7. Ke5 b5 8. Kxf5 b4 9. Ke4 b3 > 10. Kd3 >19/29 17.23 -- h4 >19/34 20.03 -2.17 1. h4 f5 2. exf5 exf5 3. Kd2 Kb4 4. Kd3 b5 5. cxb5 > Kxb5 6. Kd4 Ka5 7. Ke5 b5 8. Kxf5 b4 9. Ke4 b3 > 10. Kd3 b2 11. Kc2 >19/34 23.11 x.xx e5 >19/34 24.45 -1.73 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kc2 e5 9. Kb3 e4 10. Kxb4 >19--> 24.51 -1.73 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kc2 e5 9. Kb3 e4 10. Kxb4 >20/36 26.33 -1.87 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kd3 e5 9. Kc4 e4 10. h7 > Kg7 11. Kd4 >20--> 28.34 -1.87 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kd3 e5 9. Kc4 e4 10. h7 > Kg7 11. Kd4 >21/36 31.73 -1.87 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kd3 e5 9. Kc4 b5+ 10. Kd3 > b3 11. Kc3 e4 12. Kxb3 e3 >21--> 34.64 -1.87 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kd3 e5 9. Kc4 b5+ 10. Kd3 > b3 11. Kc3 e4 12. Kxb3 e3 >22/41 40.44 -2.12 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Ke3 e5 9. Kd3 b3 10. Kc3 > e4 11. Kxb3 e3 >22--> 48.16 -2.12 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Ke3 e5 9. Kd3 b3 10. Kc3 > e4 11. Kxb3 e3 >23/44 1:00 -2.16 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Ke3 e5 9. Kd3 b5 10. Kd2 > e4 11. Ke3 b3 12. h7 Kg7 >23--> 1:11 -2.16 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Ke3 e5 9. Kd3 b5 10. Kd2 > e4 11. Ke3 b3 12. h7 Kg7 >24/44 2:06 ++ e5 >24/45 2:41 -1.70 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kc2 e5 9. Kb3 b5 10. Kxb4 > e4 11. Kc3 >24--> 2:56 -1.70 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kc2 e5 9. Kb3 b5 10. Kxb4 > e4 11. Kc3 >25/50 4:04 -1.70 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kc2 e5 9. Kb3 b5 10. Kxb4 >25--> 4:30 -1.70 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kc2 e5 9. Kb3 b5 10. Kxb4 >26/51 9:21 ++ e5 >26/51 17:57 -0.67 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kc2 e5 9. Kb3 e4 10. Kxb4 > b5 11. Kc3 e3 12. Kd3 b4 13. Kxe3 b3 >26--> 18:39 -0.67 1. e5 Kb4 2. h4 Kxc4 3. g4 Kd4 4. gxh5 Kxe5 5. h6 > Kf6 6. h5 b5 7. Kd2 b4 8. Kc2 e5 9. Kb3 e4 10. Kxb4 > b5 11. Kc3 e3 12. Kd3 b4 13. Kxe3 b3 > >Regards >Andreas Stabel Interesting! It seems that other moves than e5 loose quickly. Ruffe finds e5 it quite fast at depth 19, but it can't spot that it is winning!
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.