Author: Chessfun
Date: 21:10:13 11/13/01
Go up one level in this thread
On November 13, 2001 at 23:59:31, William Sprague wrote: >On November 13, 2001 at 23:35:00, Chessfun wrote: > >>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) default 1 meg >>>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. > >Sarah I did the first test with a default of 1 meg - this test is 32 meg. ss=12 > >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 98636 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 248383 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 709593 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 Mate12 806005 1. Rxf8+ Nxf8 2. Nf7+ Kh7 3. e5+ > g6 4. Qd2 Be3 5. Qxe3 Kg7 6. Qh6+ > Kxf7 7. Bxg6+ Nxg6 8. Nxg6 Qa3 > 9. Qh7+ Ke8 10. Qg8+ Qf8 11. Qxf8+ > Kd7 12. Qd8# >0:09 1/8 Mate11 1194625 1. Rxf8+ Nxf8 2. Qf1 Bf5 3. exf5 > Nbd7 4. fxe6 g6 5. Qf7 Nf6 6. Nxg6+ > Nxg6 7. Qxg6 Rf8 8. Qh6+ Kg8 9. > Bh7+ Kh8 10. Qxf8+ Ng8 11. Qxg8# >0:18 1/9 Mate10 2427702 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# >0:32 1/10 Mate10 4775354 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# >1:23 1/11 Mate10 12559675 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# > >So it looks like the 1 meg is much faster in this case. > >Bill Indeed it is. Same thing default with 12SS and it does find it at 1/8...Thanks Bill. Time Depth Score Positions Moves 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# 0:07 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# 0:17 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# Sarah.
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