Author: Steven J. Brann
Date: 19:17:28 10/09/01
Go up one level in this thread
On October 09, 2001 at 13:01:13, Uri Blass wrote: >[D]8/1P6/8/5k2/2K4p/7r/1r4p1/6R1 b - - 0 61 > >This position is from the game Tao-Deep Junior7 in the last WMCCC > >Chest need some hours on p200 to see mate in 10(I used chest by the way that was >explained by paul some days ago > >see http://www.icdchess.com/forums/1/message.shtml?191857 > >Solution:61...Rg3 62.Kd4 h3 63.Kd5 h2 64.b8Q Rxb8 65.Re1 Rd3+ 66.Kc4 h1Q 67.Re5+ >Kxe5 68.Kxd3 Qd1+ 69.Kc3 Rb3+ 70.Kc4 Qc2# > >15961 seconds,292,407,791 nodes > >In the game Deep Junior7 missed the right move(Rg3) but it did not help Tao that >resigned after Rxb7. > >How much time does your program need to see mate in 10 with the full 5 piece >tablebases and without tablebases? > >Uri CM8000 with a my custom personality on a PIII 933 finds Mate in 12 in 16:24. CM will usually tighten the results to mate in the minimum number of moves rather quickly but resource time is not available for a protracted analysis. Time Depth Score Positions Moves 0:02 1/8 -16.02 239074 1...Rg3 2. Kc5 h3 3. Kd4 h2 4. Rxg2 Rgxg2 5. b8=Q Rg4+ 6. Ke3 Re4+ 7. Kd3 Rxb8 0:08 2/9 -18.44 1098176 1...Rg3 2. Kc5 h3 3. b8=Q Rxb8 4. Kd6 h2 5. Rxg2 Rxg2 6. Kc7 Rc2+ 7. Kxb8 h1=Q 0:22 3/10 -20.43 3216433 1...Rg3 2. Rd1 h3 3. Rd5+ Ke6 4. b8=Q Rxb8 5. Rd2 h2 6. Re2+ Kf6 7. Rf2+ Kg5 8. Rf3 Rg4+ 9. Kd3 h1=Q 0:59 4/11 -20.80 8879594 1...Rg3 2. Rd1 h3 3. Rd5+ Ke6 4. b8=Q Rxb8 5. Rd1 h2 6. Re1+ Kd6 7. Rd1+ Ke5 8. Re1+ Kf4 9. Kd5 Rd8+ 10. Kc6 Rc3+ 11. Kb5 g1=Q 3:24 5/12 -24.13 31947558 1...Rg3 2. Rd1 h3 3. Rd5+ Ke6 4. b8=Q Rxb8 5. Rd1 Rc8+ 6. Kb4 g1=Q 7. Rxg1 Rxg1 8. Kb3 h2 9. Kb2 Rg2+ 10. Kb3 Rg3+ 11. Kb4 h1=Q 16:24 6/13 -Mate12 155425046 1...Rg3 2. Kc5 h3 3. b8=Q Rxb8 4. Rd1 h2 5. Rd5+ Kf6 6. Rd6+ Ke7 7. Kd5 g1=Q 8. Re6+ Kf7 9. Kc4 Qc1+ 10. Kd4 Qc3+ 11. Kd5 h1=Q+ 12. Kd6 Qhc6# 22:34 7/14 -Mate12 220779102 1...Rg3 2. Kc5 h3 3. Rd1 h2 4. Rd5+ Kf6 5. Rd6+ Ke7 6. Kc6 g1=Q 7. Rd7+ Ke8 8. b8=Q+ Rxb8 9. Kd6 Qd4+ 10. Ke6 Qe4+ 11. Kd6 Rg6+ 12. Kc7 Qb7# Steve
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.