Author: blass uri
Date: 01:10:31 03/29/99
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On March 29, 1999 at 02:25:19, Paulo Soares wrote: >Jim, > >I was missed writing that Fritz5.32 presents problems >with promotions, I must have written that the problem >is with promotion of Nigths. I know that Junior has a problem with underpromotions It does not consider them at all. >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 > Fritz5.16 is probably better than Fritz5.32 in the endgame that you posted. It can see g8=N+ at depth 15 with evaluation 1.13 > >Uri placed here in the CCC, has approximately 1 month, >a problem that he elaborated, with promotion of nights white did mate with only king and knight in the final position but there were no promotion of knights The position was mate in 17.5 Here it is again: 8/p2q4/4pQ2/p2p4/p1pQ1K2/2p2b2/1N1N1n1p/2B4k b - - 0 1 black can say mate in 17 against itself when the main line is: 1...e5+ 2.Kxf3 Qh3+ 3.Kxf2 Qg2+ 4.Ke1 exd4 5.Qf1+(I do not know about a program which can find 5.Qf1+) 5...Qxf1 6.Kxf1 cxb2 7.Bxb2 c3 8.Nb1 cxb2 9.Kf2 a3 10.Nxa3 a4 11.Nb1 a3 12.Nxa3 d3 13.Nb1 a5 14.Nd2 b1Q 15.Nxb1 a4 16.Nd2 a3 17.Nf1 a2 18.Ng3# Uri
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