Author: Peter Berger
Date: 05:34:15 04/28/02
Go up one level in this thread
On April 28, 2002 at 08:00:15, Vincent Vega wrote: >Simplified position to show the bug: >[D]8/8/8/8/8/8/4KP2/R1Qn3k w - - 0 1 > >This is a mate in 2 (1. Qxd1+). > >But CHEST says: > >CHEST version 3.19, 18-Dec-1999 >Input file: 'xx' >Reading job: ># xx >W: Ke2 Qc1 Ra1 Pf2 (4) >B: Kh1 Nd1 (2) >FEN: 8/8/8/8/8/8/4KP2/R1Qn3k w - - >analysing (mate in 2 moves): >No solution in 2 moves. >refu 1: Qxd1+ -- [ 1-] M2: move >refu 2: Qc6+ -- [ 1-] M2: move >refu 3: Qh6+ Kg1 [ 1-] >refu 4: f3 -- [ 1-] M2: move >refu 5: f4 -- [ 1-] M2: move >refu 6: Rb1 -- [ 1-] M2: move >refu 7: Ra2 -- [ 1-] M2: move >refu 8: Ra3 -- [ 1-] M2: move >refu 9: Ra4 -- [ 1-] M2: move >refu 10: Ra5 -- [ 1-] M2: move >refu 11: Ra6 -- [ 1-] M2: move >refu 12: Ra7 -- [ 1-] M2: move >refu 13: Ra8 -- [ 1-] M2: move >refu 14: Qb1 -- [ 1-] M2: move >refu 15: Qc2 -- [ 1-] M2: move >refu 16: Qc3 -- [ 1-] M2: move >refu 17: Qc4 -- [ 1-] M2: move >refu 18: Qc5 -- [ 1-] M2: move >refu 19: Qc7 Kg1 [ 1-] >refu 20: Qc8 -- [ 1-] M2: move >refu 21: Qd2 -- [ 1-] M2: move >refu 22: Qe3 -- [ 1-] M2: move >refu 23: Qf4 Kg1 [ 1-] >refu 24: Qg5 -- [ 1-] M2: move >refu 25: Qb2 -- [ 1-] M2: move >refu 26: Qa3 -- [ 1-] M2: move >refu 27: Kd2 -- [ 1-] M2: move >refu 28: Ke1 -- [ 1-] M2: move >refu 29: Kf3 -- [ 1-] M2: move >refu 30: Kxd1 -- [ 1-] M2: move >refu 31: Kf1 Ne3+ [ 1-] >refu 32: Kd3 -- [ 1-] M2: move >Time (virt) = 0.000 sec How do you deliver mate after 1. Qxd1+ Kg2 ?? Peter
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