Author: Richard Pijl
Date: 13:04:21 05/05/03
Go up one level in this thread
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 The Latest Baron (single CPU) version sees e5 within a second and shows a positive score in 3 seconds (AMD 2000+): 7( 9). 0 11154 -81 h3h4 f7f5 e4f5 e6f5 e1d2 a3b4 d2d3 b4c5 8(11)- 0 17882 -116 h3h4 f7f5 e4f5 e6f5 e1d2 a3b4 d2d3 b6b5 d3e3 8(17)& 0 22421 -176 h3h4 f7f5 e4f5 e6f5 e1d2 a3b4 d2d3 b6b5 c4b5 8(17). 0 23652 -176 h3h4 f7f5 e4f5 e6f5 e1d2 a3b4 d2d3 b6b5 c4b5 9(21)& 0 43389 -172 h3h4 f7f5 e4f5 e6f5 e1d2 a3b4 d2d3 b6b5 c4b5 b4b5 g2g3 9(21). 0 52541 -172 h3h4 f7f5 e4f5 e6f5 e1d2 a3b4 d2d3 b6b5 c4b5 b4b5 g2g3 10(20)& 0 102241 -176 h3h4 f7f5 e4f5 e6f5 e1d2 a3b4 d2e3 b4c4 e3f4 b6b5 f4f5 10(20). 0 118289 -176 h3h4 f7f5 e4f5 e6f5 e1d2 a3b4 d2e3 b4c4 e3f4 b6b5 f4f5 11(25)& 0 258590 -168 h3h4 f7f5 e1d2 a3b4 d2d3 b6b5 c4b5 b4b5 e4f5 e6f5 d3d4 b7b6 d4e5 11(27)> 0 402411 -167 e4e5 11(27)+ 0 408031 -141 e4e5 h5h4 g2g3 h4g3 h3h4 a3b3 h4h5 b3b2 h5h6 b2c1 h6h7 g3g2 e1f2 f7f5 11(27)& 1 459538 -137 e4e5 b6b5 c4b5 a3b4 h3h4 b4c4 e1e2 c4d4 e2f3 d4e5 f3e3 11(27). 1 490641 -137 e4e5 b6b5 c4b5 a3b4 h3h4 b4c4 e1e2 c4d4 e2f3 d4e5 f3e3 12(29)& 1 691180 -137 e4e5 b6b5 c4b5 a3b4 h3h4 b4c4 g2g4 h5g4 h4h5 c4d4 h5h6 d4e5 h6h7 12(29). 1 779631 -137 e4e5 b6b5 c4b5 a3b4 h3h4 b4c4 g2g4 h5g4 h4h5 c4d4 h5h6 d4e5 h6h7 13(31)+ 2 1132621 -102 e4e5 b6b5 c4b5 a3b4 h3h4 b4c4 g2g4 h5g4 h4h5 c4d4 h5h6 d4e5 h6h7 f7f6 13(31)+ 2 1237813 -12 e4e5 b6b5 c4b5 a3b4 h3h4 b4c4 g2g4 h5g4 h4h5 c4d4 h5h6 d4e5 h6h7 f7f6 13(31)& 3 1425906 64 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 13(31). 3 1546635 64 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 14(34)& 5 2353212 74 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 d2e3 14(34). 5 2625226 74 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 d2e3 15(36)& 10 4221448 49 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 d2c2 f6g5 15(36). 11 4817400 49 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 d2c2 f6g5 16(42)& 24 9037504 71 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 d2c2 b7b6 c2d3 16(42). 26 9964494 71 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 d2c2 b7b6 c2d3 17(42)& 66 20539974 52 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 d2c2 b7b5 c2b3 17(42). 73 22745694 52 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 d2c2 b7b5 c2b3 18(45)& 218 60977081 81 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 d2c2 b7b5 c2b3 18(45). 229 64923823 81 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b5b4 d2c2 b7b5 c2b3 19(49)& 663 176925026 72 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b7b6 d2c2 e6e5 c2c3 19(49). 699 190342505 72 e4e5 a3b4 h3h4 b4c4 g2g4 c4d4 g4h5 d4e5 h5h6 e5f6 h4h5 b6b5 e1d2 b7b6 d2c2 e6e5 c2c3 Richard
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