Author: Janosch Zwerensky
Date: 02:28:47 09/19/01
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>White(1): epdpfga test.epd test.out >PFGA: EPD record: 1 ID: test.1 >end-game phase > clearing hash tables > time surplus 0.00 time limit 120:00 (120:00) > nss depth time score variation (1) >starting thread 1 > (2) 9 0.16 2.57 1. Re6 Kd7 2. Re2 Kc7 3. Rc2+ Kb7 4. > Rd2 Be5 5. Rd7+ Bc7 6. Kb4 > 9 0.19 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Rg7 Bd4 6. Rd7 <HT> > (2) 9-> 0.21 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Rg7 Bd4 6. Rd7 <HT> > 10 0.24 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Rg7 Bd4 6. Rd7 <HT> > (4) 10-> 0.30 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Rg7 Bd4 6. Rd7 <HT> > (3) 11 0.33 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Rg7 Bd4 6. Rd7 <HT> > (4) 11-> 0.47 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Rg7 Bd4 6. Rd7 <HT> > (3) 12 0.54 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bc5 6. Rb7+ Ka8 7. > Rd7 Kb8 8. a5 > (4) 12-> 0.72 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bc5 6. Rb7+ Ka8 7. > Rd7 Kb8 8. a5 > (3) 13 0.83 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Kb5 Bd4 7. > Rd7 Bc5 8. a5 > (4) 13-> 1.13 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Kb5 Bd4 7. > Rd7 Bc5 8. a5 > (3) 14 1.27 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rd7 Kb8 8. Kb5 Bc5 9. a5 <HT> > (4) 14-> 1.97 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rd7 Kb8 8. Kb5 Bc5 9. a5 <HT> > (3) 15 2.24 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rd7 Kb8 8. Kb5 Bc5 9. a5 Kc8 > (4) 15-> 3.85 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rd7 Kb8 8. Kb5 Bc5 9. a5 Kc8 > (3) 16 4.55 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Kb5 Bg1 9. Rd7 Bc5 10. a5 > <HT> > (4) 16-> 14.24 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Kb5 Bg1 9. Rd7 Bc5 10. a5 > <HT> > (3) 17 15.04 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Kb5 Bg1 9. Rd7 Bc5 10. a5 > Kc8 > (4) 17-> 24.04 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Kb5 Bg1 9. Rd7 Bc5 10. a5 > Kc8 > (3) 18 25.16 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Bd4 9. Rb7+ Ka8 10. > Rd7 Be3 11. Kb5 Bc5 > (4) 18-> 42.14 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Bd4 9. Rb7+ Ka8 10. > Rd7 Be3 11. Kb5 Bc5 > (3) 19 44.21 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Be3 9. Rb7+ Ka8 10. > Rh7 Bd4 11. Kd5 Bc3 12. Rc7 > (4) 19-> 1:08 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Be3 9. Rb7+ Ka8 10. > Rh7 Bd4 11. Kd5 Bc3 12. Rc7 > (3) 20 1:10 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Be3 9. Rb7+ Ka8 10. > Rh7 Bd4 11. Rd7 Be3 12. Kb5 Bc5 > (3) 20-> 2:18 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Be3 9. Rb7+ Ka8 10. > Rh7 Bd4 11. Rd7 Be3 12. Kb5 Bc5 > (2) 21 2:22 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Bd4 9. Rb7+ Ka8 10. > Rd7 Be3 11. Kd6 Bd4 12. Kc7 Bc5 13. > Kc6 > (4) 21-> 3:42 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Bd4 9. Rb7+ Ka8 10. > Rd7 Be3 11. Kd6 Bd4 12. Kc7 Bc5 13. > Kc6 > (3) 22 3:50 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Bd4 9. Rb7+ Ka8 10. > Rd7 Be3 11. Re7 Bg1 12. Kb5 Bd4 13. > Kc4 Bc5 > (3) 22-> 5:36 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Bd4 9. Rb7+ Ka8 10. > Rd7 Be3 11. Re7 Bg1 12. Kb5 Bd4 13. > Kc4 Bc5 > (2) 23 5:49 2.83 1. Rc6+ Kb7 2. Rd6 Be3 3. Rd7+ Ka8 > 4. Kc6 Kb8 5. Re7 Bf2 6. Rb7+ Ka8 7. > Rh7 Kb8 8. Rg7 Bd4 9. Rb7+ Ka8 10. > Rd7 Be3 11. Rd8+ Ka7 12. Kb5 Kb7 13. > Rd3 Bf2 14. Rd7+ Ka8 15. Kc6 Bc5 > 23 10:49 ++ 1. Ka6!! > 23 10:50 3.23 1. Ka6 Bf2 2. Rg5 Kb8 3. Rb5 Kc8 4. > Ka7 Bd4 5. Rb4 Bf2 6. Rc4+ Kd7 7. Kb7 > Bg1 8. Rc7+ Kd6 9. Rh7 Ke6 10. Ka6 > Kf5 11. Rh6 Bd4 12. Rxb6 Ke4 13. Rd6 > (4) 23-> 11:00 3.23 1. Ka6 Bf2 2. Rg5 Kb8 3. Rb5 Kc8 4. > Ka7 Bd4 5. Rb4 Bf2 6. Rc4+ Kd7 7. Kb7 > Bg1 8. Rc7+ Kd6 9. Rh7 Ke6 10. Ka6 > Kf5 11. Rh6 Bd4 12. Rxb6 Ke4 13. Rd6 > 24 12:26 ++ 1. Ka6!! > (3) 24 12:47 3.63 1. Ka6 Bf2 2. Rg5 Kb8 3. Rb5 Kc8 4. > Rf5 Bd4 5. Rf8+ Kc7 6. Rf4 Bg1 7. Rf7+ > Kc6 8. Rh7 Bc5 9. Rh8 Bg1 10. Rc8+ > Kd5 11. Rd8+ Kc4 12. Rb8 Kb3 13. a5 > Bh2 14. Rb7 Be5 15. axb6 > That's possibly quite impressive and interesting. The crafty main line as well as its evaluation suggest that it might have found a way of forcing capture of the black pawn on b6, and though its mainline seems to more or less follow the ideas underlying the Fischer/Ham/Finn/Andersson/Froeyman plan for the first few moves, after that it obiously does things completely different. So, if it can somehow be verified that Crafty can force a won position like the one that it arrives at at the end of its PV, then this might in fact tell us something new about this fascinating endgame. I'll take a closer look at Crafty's analysis when I'll have more time. It might also be interesting to see what Crafty thinks about this position when it has access to all five-men tablebases, since no doubt the position at the end of its current PV is a tablebase win. Regards, Janosch.
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