Author: Chessfun
Date: 20:35:00 11/13/01
Go up one level in this thread
On November 13, 2001 at 23:13:43, William Sprague wrote: >On November 13, 2001 at 23:01:34, John Merlino wrote: > >>On November 13, 2001 at 19:53:14, John Merlino wrote: >> >>>Here's a position from a game the 1988 US Championship in Cambridge Springs. Of >>>special interest, note the move number. >>> >>>[D]rn3r1k/ppBnN1p1/2p1p3/6Np/q2bP1b1/3B4/PPP3PP/R2Q1R1K w - - 0 17 >>> >> >>Ok. It appears to really be a Mate in 10. My original post was using the default >>personality. Sorry about that! >> >>Here's the report from an SS=12, 32MB personality (PIII-600): >> >>Time Depth Score Positions Moves >>0:00 1/3 2.36 4894 17. Rxf8+ Nxf8 18. Nf7+ Kh7 19. >> e5+ g6 20. Qd2 Kg7 21. Rf1 Bf5 >> 22. Nxf5+ exf5 >>0:00 1/3 2.52 7750 17. Ng6+ Kg8 18. Rxf8+ Nxf8 19. >> Ne7+ Kh8 20. Nf7+ Kh7 21. e5+ g6 >> 22. Qd2 Kg7 23. Rf1 >>0:00 1/4 2.36 21760 17. Ng6+ Kg8 18. Rxf8+ Nxf8 19. >> Ne7+ Kh8 20. Nf7+ Kh7 21. e5+ g6 >> 22. Qd2 Kg7 23. Rf1 Bf5 24. Nxf5+ >> exf5 >>0:01 1/5 4.58 99311 17. Ng6+ Kg8 18. Rxf8+ Nxf8 19. >> Ne7+ Kh8 20. Qf1 Nbd7 21. Qf7 Nf6 >> 22. e5 Bf5 23. exf6 >>0:03 1/6 6.40 248761 17. Ng6+ Kg8 18. Rxf8+ Nxf8 19. >> Ne7+ Kh8 20. Qf1 Bf2 21. Qxf2 Nbd7 >> 22. e5 g6 23. Nxg6+ Nxg6 24. Bxg6 >>0:09 1/7 Mate14 701333 17. Ng6+ Kg8 18. Rxf8+ Nxf8 19. >> Ne7+ Kh8 20. Nf7+ Kh7 21. e5+ g6 >> 22. Qd2 Be3 23. Qxe3 Kg7 24. Qh6+ >> Kxf7 25. Bxg6+ Nxg6 26. Nxg6 Qa3 >> 27. Qh7+ Ke8 28. Qg8+ Qf8 29. Qxf8+ >> Kd7 30. Qd8# >>0:10 1/7 Mate12 797706 17. Rxf8+ Nxf8 18. Nf7+ Kh7 19. >> e5+ g6 20. Qd2 Be3 21. Qxe3 Kg7 >> 22. Qh6+ Kxf7 23. Bxg6+ Nxg6 24. >> Nxg6 Qa3 25. Qh7+ Ke8 26. Qg8+ >> Qf8 27. Qxf8+ Kd7 28. Qd8# >>0:14 1/8 Mate11 1189940 17. Rxf8+ Nxf8 18. Qf1 Bf5 19. >> exf5 Nbd7 20. fxe6 g6 21. Qf7 Nf6 >> 22. Nxg6+ Nxg6 23. Qxg6 Rf8 24. >> Qh6+ Kg8 25. Bh7+ Kh8 26. Qxf8+ >> Ng8 27. Qxg8# >>0:26 1/9 Mate10 2428429 17. Rxf8+ Nxf8 18. Qf1 Bf6 19. >> Nf7+ Kh7 20. e5+ Qe4 21. Bxe4+ >> Bf5 22. Bxf5+ g6 23. Bxg6+ Nxg6 >> 24. Ng5+ Bxg5 25. Qf7+ Kh8 26. >> Qg8# >>0:48 1/10 Mate10 4781777 17. Rxf8+ Nxf8 18. Qf1 Bf6 19. >> Nf7+ Kh7 20. e5+ Qe4 21. Bxe4+ >> Bf5 22. Bxf5+ g6 23. Bxg6+ Nxg6 >> 24. Ng5+ Bxg5 25. Qf7+ Kh8 26. >> Qg8# >> >>jm > >John I did the test again running ss=12 (p4 1.3gig) >Time Depth Score Positions Moves >0:00 1/3 2.36 4849 1. Rxf8+ Nxf8 2. Nf7+ Kh7 3. e5+ > g6 4. Qd2 Kg7 5. Rf1 Bf5 6. Nxf5+ > exf5 >0:00 1/3 2.52 7705 1. Ng6+ Kg8 2. Rxf8+ Nxf8 3. Ne7+ > Kh8 4. Nf7+ Kh7 5. e5+ g6 6. Qd2 > Kg7 7. Rf1 >0:00 1/4 2.36 21725 1. Ng6+ Kg8 2. Rxf8+ Nxf8 3. Ne7+ > Kh8 4. Nf7+ Kh7 5. e5+ g6 6. Qd2 > Kg7 7. Rf1 Bf5 8. Nxf5+ exf5 >0:01 1/5 4.58 98644 1. Ng6+ Kg8 2. Rxf8+ Nxf8 3. Ne7+ > Kh8 4. Qf1 Nbd7 5. Qf7 Nf6 6. e5 > Bf5 7. exf6 >0:02 1/6 6.40 248972 1. Ng6+ Kg8 2. Rxf8+ Nxf8 3. Ne7+ > Kh8 4. Qf1 Bf2 5. Qxf2 Nbd7 6. > e5 g6 7. Nxg6+ Nxg6 8. Bxg6 >0:06 1/7 Mate14 723251 1. Ng6+ Kg8 2. Rxf8+ Nxf8 3. Ne7+ > Kh8 4. Nf7+ Kh7 5. e5+ g6 6. Qd2 > Be3 7. Qxe3 Kg7 8. Qh6+ Kxf7 9. > Bxg6+ Nxg6 10. Nxg6 Qa3 11. Qh7+ > Ke8 12. Qg8+ Qf8 13. Qxf8+ Kd7 > 14. Qd8# >0:06 1/7 Mate13 825046 1. Rxf8+ Nxf8 2. Nf7+ Kh7 3. e5+ > g6 4. Qd2 Be3 5. Qxe3 Kg7 6. Qh6+ > Kxf7 7. Bxg6+ Nxg6 8. Qxg6+ Kxe7 > 9. Bd6+ Kd8 10. Qf6+ Kc8 11. Qf8+ > Kd7 12. Qe7+ Kc8 13. Qe8# >0:09 1/8 Mate10 1151176 1. Rxf8+ Nxf8 2. Qf1 Bf6 3. Nf7+ > Kh7 4. e5+ Qe4 5. Bxe4+ Bf5 6. > Bxf5+ g6 7. Bxg6+ Nxg6 8. Ng5+ > Bxg5 9. Qf7+ Kh8 10. Qg8# >0:15 1/9 Mate10 2121087 1. Rxf8+ Nxf8 2. Qf1 Bf6 3. Nf7+ > Kh7 4. e5+ Qe4 5. Bxe4+ Bf5 6. > Bxf5+ g6 7. Bxg6+ Nxg6 8. Ng5+ > Bxg5 9. Qf7+ Kh8 10. Qg8# >Mate in 10 in 9 seconds > >Bill Since John's line is; 0:26 1/9 Mate10 2428429 17. Rxf8+ Nxf8 18. Qf1 Bf6 19. And Bill's is; 0:09 1/8 Mate10 1151176 1. Rxf8+ Nxf8 2. Qf1 Bf6 3. Nf7+ And they both have the same settings. Why is the depth and therefore NPS different. My own TB at 1.4 ghz SS12 32 mb hash won't find this till depth 1/9 like John's in 19 seconds. What ever way I work it 1/8 is always mate in 11. Can other CM users find this in 1/8? Sarah.
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