Author: Paulo Soares
Date: 23:25:19 03/28/99
Go up one level in this thread
On March 28, 1999 at 22:47:56, James T. Walker wrote: >On March 28, 1999 at 20:34:41, Paulo Soares wrote: > >>On March 28, 1999 at 19:01:19, James T. Walker wrote: >> >>>On March 28, 1999 at 13:54:58, blass uri wrote: >>> >>>> >>>>On March 28, 1999 at 13:46:49, José de Jesús García Ruvalcaba wrote: >>>> >>>>>On March 28, 1999 at 13:30:30, blass uri wrote: >>>>> >>>>>> >>>>>>On March 28, 1999 at 13:19:16, José de Jesús García Ruvalcaba wrote: >>>>>> >>>>>>>On March 28, 1999 at 05:46:46, blass uri wrote: >>>>>>> >>>>>>>>I looked in gambitsofrt forum >>>>>>>>and I found that Junior5 won Wchess2000 in mclane's tournament >>>>>>>> >>>>>>>>Junior got a drawn KQP vs KQ >>>>>>>> >>>>>>>>8/8/6Q1/3p4/1K1k4/8/8/7q b - - 0 1 >>>>>>>> >>>>>>>>Junior5 did not use tablebases and played Qe1+ >>>>>>>> >>>>>>>>Junior5 won after a mistake of wchess2000 (Kb5) >>>>>>>> ><snip,snip,snip> > >>Jim, >> >>I tested the position with Fritz5.32( Version March/99, >>with tablebases), see below: >> >>1... Ke3 2. Qb6+ d4 3. Qe6+ Kd2 4. Qf7 d3 5. Qg7 >>Kc1 6. Qe5?? (6. Qa1+ Wins.). >> >>Tablebases yet have problems, and Fritz5.32 also >>has some problems with problems with promotions. >> >>Another problem, what Chessbase wants to say with >>"engine now mates with bishop and knight"? I >>don't understand. >> >>Best regards, >> >>Paulo Soares, from Brazil > >Hello Paulo, >I'm not sure what problems Fritz 5.32 has with promotions. Can you tell me? >When Chessbase says "Fritz 5.32 now mates with Bishop & Knight" they are saying >they fixed the problem it had with the KBNK ending. I pointed out to them that >Fritz 5.32 was not able to mate with the King,Bishop & Knight vs the lone King >in January. The latest SP1 update is supposed to have fixed that problem. But >they still have problems with the endgame CD ROM. >Jim Walker Jim, I was missed writing that Fritz5.32 presents problems with promotions, I must have written that the problem is with promotion of Nigths. The study below is of Smyslov, and I found it in the site of Valentim Albillo. Whites play and win: [Event "Estudo de Smyslov"] [Site "Valentim Albillo"] [Date "????.??.??"] [Round "?"] [White "?"] [Black "?"] [Result "1-0"] [Annotator "Paulo Soares"] [SetUp "1"] [FEN "8/2B2pPb/7k/4K3/3p2P1/8/8/8 w - - 0 1"] [PlyCount "?"] 1. g8=N+ Bxg8 2. Kf6 Kh7 (2... d3 3. Bf4+ Kh7 4. g5 Kh8 5. Be5 Kh7 6. Bc3 d2 7. Bxd2 Kh8 8. Bc3 Kh7 9. Bd4 Kh8 10. g6 fxg6 11. Kxg6#) 3. g5 d3 4. Bf4 Kh8 5. Be5 Kh7 6. Bc3 d2 7. Bxd2 Kh8 8. Bc3 Kh7 9. Bd4 Kh8 10. g6 fxg6 11. Kxg6# 1-0 Look the test with some programs: Program Move Depth Time(sec) Evaluation Fritz5.32..... Kf6 20 105 +0.63 Kf6 21 192 +0.63 Kf6 22 294 +0.63 Genius 6...... g8=N+ 12 40 +1.09 g8=N+ 13 53 +1.69 g8=N+ 13 233 +2.00 Crafty 16.5 T.. g8=N+ 15 96 +0.71 g8=N+ 16 194 +3.25 Comet B00...... Kf6 13 78 +0.86 g8=N+ 14 189 +1.67 Uri placed here in the CCC, has approximately 1 month, a problem that he elaborated, with promotion of nights, if I am not deceived, mate in 17. For a mate in less moves, following the main line of Uri, Genius 6 and Crafty 16.x had decided. Fritz5.32 did not obtain because the promotion of nigths. I think that best is that more tests become, to verify if I am certain. Best regards, Paulo Soares
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.