Author: Slater Wold
Date: 19:17:46 07/28/02
Go up one level in this thread
6 seconds on the first isn't bad at all. Better than anything I've tested.
4 hours on the other, I don't know. I haven't let any program think that long.
But still impressive it finds it.
On July 28, 2002 at 16:39:57, Dieter Buerssner wrote:
>On July 28, 2002 at 00:40:23, Slater Wold wrote:
>
>>8/8/8/7n/8/7N/3kp1K1/5n2 w - - 0 1
>>
>>Nf1 to draw. Sure you find Nf1, but do you see the draw?
>
>With TBs, Yace on K6-2 475 sees a draw score in 6 seconds.
>
> 153577 1.528 -6.86 9++ 1. Ng1 Nf4+ 2. Kh1 Ng3+ 3. Kh2 Kd3 4. Nf3 Ng6
> 5. Ne1+ Kd2 6. Nf3+ Kc3
> 167408 1.637 -5.86 9++ 1. Ng1 Nf4+ 2. Kh1 Ng3+ 3. Kh2 Ng2 4. Kxg2 e1=R
> 238819 2.006 -0.94 9t 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 Nd5
> 5. Nxe2H Nge3H 6. Kg1H Kd3H 7. Nf4+H Kd2H {-340}
> 239456 2.022 -0.94 9. 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 Nd5
> 5. Nxe2 Nge3 6. Kg1 Kd3 7. Nf4+ Kd2 {-340}
> 302625 2.375 -0.94 10t 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 e1=B
> 5. Nf3+ Kd3 6. Nxe1+ Kd4 7. Nd3H Nd5H 8. Kg2H
> Nge3+H 9. Kh3H {-340}
> 303756 2.406 -0.94 10. 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 e1=B
> 5. Nf3+ Kd3 6. Nxe1+ Kd4 7. Nd3 Nd5 8. Kg2
> Nge3+ 9. Kh3 {-340}
> 414226 2.958 -0.94 11t 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 e1=N
> 5. Nf3+ Ke3 6. Nxe1 Ne2 7. Nf3 Nf2+ 8. Kg2 Nf4+
> 9. Kg3H N2d3H {-340}
> 416173 2.982 -0.94 11. 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 e1=N
> 5. Nf3+ Ke3 6. Nxe1 Ne2 7. Nf3 Nf2+ 8. Kg2 Nf4+
> 9. Kg3 N2d3 {-340}
> 523494 3.531 -0.91 12t 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 Nf2+
> 5. Kh2 e1=Q 6. Nf3+ Ke3 7. Nxe1 Ne2 8. Ng2+ Kf3
> 9. Nf4 Ng3 10. Kg1H Nge4H 11. Kf1H {-340}
> 527313 3.623 -0.91 12. 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 Nf2+
> 5. Kh2 e1=Q 6. Nf3+ Ke3 7. Nxe1 Ne2 8. Ng2+ Kf3
> 9. Nf4 Ng3 10. Kg1 Nge4 11. Kf1 {-340}
> 777635 4.984 -0.90 13t 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 Nf2+
> 5. Kh2 e1=Q 6. Nf3+ Ke3 7. Nxe1 Ne2 8. Nc2+ Ke4
> 9. Nd4 Nf4H 10. Ne6H Nd5H 11. Ng5+H Kd4H 12.
> Ne6+H Ke5H {-340}
> 783191 5.047 -0.90 13. 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 Nf2+
> 5. Kh2 e1=Q 6. Nf3+ Ke3 7. Nxe1 Ne2 8. Nc2+ Ke4
> 9. Nd4 Nf4 10. Ne6 Nd5 11. Ng5+ Kd4 12. Ne6+
> Ke5 {-340}
> 917370 5.821 0.00 14++ 1. Ng1 Ne3+ 2. Kh3 Nf4+ 3. Kh2 Ng4+ 4. Kh1 Nf2+
> 5. Kh2 e1=Q 6. Nf3+ Ke3 7. Nxe1 {EGTB} 7...N2d3
> 8. Nc2+ Kf3 9. Na3 Nb4 10. Nc2 Nbd3 11. Na3 Nb4
> 12. Nc2 Nbd3 {repetition} {-340}
> 929766 5.989 0.00 14t 1. Ng1 Ne3+ 2. Kh3 Nf4+H 3. Kh2H Ng4+H 4. Kh1H
> Nf2+H 5. Kh2H e1=QH 6. Nf3+H Ke3H 7. Nxe1H
> {EGTB} 7...Nd5 8. Nc2+ Kf3 9. Na3 Nb6 10. Nc2
> Nd5 11. Na3 Nb6 12. Nc2 Nd5 {repetition} {-340}
>[And no change anymore]
>
>
>>8/4kP2/6P1/8/3rB1r1/2P3P1/6PK/8 w - - 0 1
>>
>>Bf5 to draw. And Bf3 does _not_ work.
>
>Here Yace needs a very long time - over 4 hours:
>
> 43167727 4:23.4 -0.25 16. 1. Bf3 Ra4 2. Bd1 Kf8 3. Kh3 Ra1 4. Kxg4 Rxd1
> 5. Kg5 Rd2 6. g4 Rxg2 7. Kf5 Rc2H {HT} {-180}
> 71564719 7:17.3 -0.52 17t 1. Bf3 Ra4 2. Bd1 Kf8 3. Kh3 Ra1 4. Kxg4 Rxd1
> 5. Kg5 Rd2 6. c4 Rxg2 7. Kf5 Rxg3 8. c5 Rf3+ 9.
> Ke6 Rc3 10. Kf6 {-260}
> 94812369 9:45.1 -0.52 17. 1. Bf3 Ra4 2. Bd1 Kf8 3. Kh3 Ra1 4. Kxg4 Rxd1
> 5. Kg5 Rd2 6. c4 Rxg2 7. Kf5 Rxg3 8. c5 Rf3+ 9.
> Ke6 Rc3 10. Kf6 {-260}
> 157519608 16:04.4 -0.70 18t 1. Bf3 Ra4 2. Bd1 Kf8 3. Kh3 Ra1 4. Kxg4 Rxd1
> 5. Kg5 Rd2 6. Kf6 Rf2+ 7. Ke6 Rxg2 8. Kf6 Rf2+
> 9. Kg5 Rf3 10. c4 Rxg3+ 11. Kf6 Rf3+ 12. Ke6H
> Re3+H 13. Kf6H Re5H {HT} {-260}
> 204514965 20:45.3 -0.70 18. 1. Bf3 Ra4 2. Bd1 Kf8 3. Kh3 Ra1 4. Kxg4 Rxd1
> 5. Kg5 Rd2 6. Kf6 Rf2+ 7. Ke6 Rxg2 8. Kf6 Rf2+
> 9. Kg5 Rf3 10. c4 Rxg3+ 11. Kf6 Rf3+ 12. Ke6
> Re3+ 13. Kf6 Re5 {HT} {-260}
> 339480577 33:49.2 -0.86 19t 1. Bf3 Ra4 2. Bd1 Kf8 3. Kh3 Ra1 4. Kxg4 Rxd1
> 5. Kg5 Rd2 6. Kf6 Rf2+ 7. Ke6 Rxg2 8. Kf6 Rf2+
> 9. Ke6 Ra2 10. g4 Ra6+ 11. Kf5 Rc6 12. g5 {-180}
> 441511568 43:45.4 -0.86 19. 1. Bf3 Ra4 2. Bd1 Kf8 3. Kh3 Ra1 4. Kxg4 Rxd1
> 5. Kg5 Rd2 6. Kf6 Rf2+ 7. Ke6 Rxg2 8. Kf6 Rf2+
> 9. Ke6 Ra2 10. g4 Ra6+ 11. Kf5 Rc6 12. g5 {-180}
> 778827879 1:15:36 -0.87 20t 1. Bf3 Ra4 2. Bd1 Rge4 3. Bc2 Kf8 {HT}
> 996656418 1:36:40 -0.87 20. 1. Bf3 Ra4 2. Bd1 Rge4 3. Bc2 Kf8
>1143630376 1:50:28 -1.27 21-- 1. Bf3 Ra4 2. Bd1 Kf8 3. Kh3 Ra1 4. Kxg4 Rxd1
> 5. Kg5 Kg7 6. g4 Rg1 7. Kf4 Rxg2 8. g5 Rc2 9.
> c4 Rxc4+ 10. Ke5 Rc5+ 11. Kd6 Rxg5 12. Ke6
>1722588210 2:46:18 -1.28 21t 1. Bf3 Ra4 2. Bd1 Kf8 {HT}
>2703962187 4:21:08 -1.27 21t+ 1. Bf5 Rc4 2. Be6 Kxe6 3. f8=Q Rxc3
>3769914951 6:03:26 -1.07 21t 1. Bf5 Rc4 2. Be6 Kf8 3. Kh3 Rge4 4. Bd5 Kg7 5.
> Kh2 Ra4 6. Bc6 Rec4 7. Bb5 Rg4 8. Bd7 Rac4 9.
> Be6 Rce4 10. Bf5 Kf8 11. Kh3 {-250}
>4220097892 6:46:50 -1.07 21. 1. Bf5 Rc4 2. Be6 Kf8 3. Kh3 Rge4 4. Bd5 Kg7 5.
> Kh2 Ra4 6. Bc6 Rec4 7. Bb5 Rg4 8. Bd7 Rac4 9.
> Be6 Rce4 10. Bf5 Kf8 11. Kh3 {-250}
>2512939255 11:01:48 -0.68 22t 1. Bf5 Ra4 2. Bd7 Rgc4 3. Bb5H Rxc3H {HT} {-330}
>
>Regards,
>Dieter
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