Author: Robert Hyatt
Date: 12:54:16 03/12/00
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On March 12, 2000 at 15:39:57, John Coffey wrote: >[D]1Q6/K7/8/3k4/8/8/8/8 w - - > >I had this position in a game and I wondered what the shortest route to mate >is. I have seen methods by which one advances the king first and other methods >where one advances the queen first. > >I think that Qf4 might be the best move although I can't prove it. > >I gave the problem to Fritz6 thinking that it would either know the answer >immediately or would be able to find it quickly. After some searching it came >up with mate in 31, but after playing a move or two it quickly turned into mate >in 9. > >After searching several hours Fritz came up with Qb4 mate in 26. I don't know >if that is the fastest solution since I have heard that one can mate with this >in less than 20 moves. > >John Here is the right answer: White(1): egtb ! 1. Qf4! Kc5 2. Qe4 Kb5! 3. Qd4 Ka5 4. Kb7! Kb5! 5. Kc7! Ka5! 6. Kc6! Ka6! 7. Qb6# Obviously a mate in 7. Moves with a ! after them are the _only_ move that provides the best resistance (all other moves there result in a shorter mate). (the above is output from Crafty).
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