Author: Heiner Marxen
Date: 16:58:05 01/25/01
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On January 25, 2001 at 19:11:04, John Merlino wrote: >On January 25, 2001 at 09:57:29, leonid wrote: > >>Hi! >> >>If you like to solve some average mate position... >> >>[D]R1brkrnR/1N1qqqbN/3qqq1B/1B1bQNbQ/1bn1Q2B/3Q1Q2/3Q1Q2/1K6 w - - [I inserted the N at h7] >>Please indicate your result. >> >>If you can depose here just one forced mate position from some world chess >>championship, it will be nice. Indicate exactly where this competition happened. >>I speak about championship where human found forced mate. Never mind if this >>championship was between two humans or man and machine. It could give an >>opportinity to see which program is best in real life situation. Even more that >>this, it will permit to tune selective search for forced mate to make it more >>effective. >> >>Thanks, >>Leonid. > >Chessmaster 8000 announces Mate in 9! > >Time Depth Score Positions Moves >0:02 3 25.61 82040 1. Nbxd6+ Bxd6 2. Bxd7+ Q7xd7 3. > Nxf6+ B7xf6 4. Qxf7+ Qxf7 5. Nxd6+ > Rxd6 6. Qxe6+ Qxe6 7. B6xg5 >0:07 4 25.45 379067 1. Nbxd6+ Nxd6 2. Nxf6+ B7xf6 3. > Bxd7+ Bxd7 4. Qxf7+ Q7xf7 5. Nxd6+ > Bxd6 6. Rxd8+ Kxd8 7. Qxe6 B7xe6 > 8. B6xg5 >0:14 4 Mate11 712825 1. Nxf6+ B7xf6 2. Ng7+ Bxg7 3. > Qfxf7+ Q6xf7 4. Qhxf7+ Bxf7 5. > Nxd6+ Bxd6 6. Qxf7+ Rxf7 7. Rxg8+ > Bf8 8. Rxf8+ Rxf8 9. Qg6+ Rf7 10. > Qg8+ Rf8 11. Qxf8# >0:24 5 Mate10 1244943 1. Nxf6+ B7xf6 2. Ng7+ Bxg7 3. > Qfxf7+ Q6xf7 4. Qhxf7+ Bxf7 5. > Bxd7+ Kxd7 6. Qdxd6+ Qxd6 7. Nc5+ > Bxc5 8. Ra7+ Bxa7 9. Qxa7+ Bb7 > 10. Qaxb7# >1:46 6 Mate09 5361333 1. Nxf6+ B7xf6 2. Ng7+ Bxg7 3. > Qfxf7+ Q6xf7 4. Qxe7+ Nxe7 5. Nxd6+ > Nxd6 6. Qfxf7+ Nxf7 7. Qdxd5 Bxh8 > 8. Bxd7+ Bxd7 9. Qxd7# >4:41 7 Mate09 14984703 1. Nxf6+ B7xf6 2. Ng7+ Bxg7 3. > Qfxf7+ Q6xf7 4. Qxe7+ Nxe7 5. Nxd6+ > Nxd6 6. Qfxf7+ Nxf7 7. Qdxd5 Bxh8 > 8. Bxd7+ Bxd7 9. Qxd7# > >jm [ From the key move I see that you have used the corrected FEN. ] Great! CM always was a great mate finder. Now I _have_ to check that with Chest, but that will take some time (I expect around 8 hours). Heiner
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