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Subject: Re: Pawn endgame, solution correct?

Author: Dann Corbit

Date: 09:08:18 10/15/01

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On October 15, 2001 at 10:22:09, Rafael Andrist wrote:

>[D]8/2p5/1pP3k1/1P3p2/8/5pP1/5P2/3K4 w - - bm Kc2; id "APE.704"; c0 "M. Sinar,
>1983";
>
>According to M. Sinar, White wins with Kc2. But after analyzing the position
>with chess programs (without TBs), I could not find a winning line. The score
>swaps between +2 and 0. What do other programs say?

ChessMaster:

Time	Depth	Score	Positions	Moves

0:00	15/16	2.12	63842		1. Kc2 Kh5 2. Kd3 Kg5 3. Kd4 f4
					4. gxf4+ Kxf4 5. Kd3 Kg5 6. Ke3
					Kg4 7. Ke4 Kg5 8. Kxf3 Kf5 9. Ke3
					Ke5
0:00	17/18	1.72	225673		1. Kd2 Kg5 2. Kd3 Kh5 3. Kd4 Kg5
					4. Ke5 Kg4 5. Ke6 Kh3 6. Kd7 Kg2
					7. Kxc7 Kxf2 8. Kxb6 Kxg3 9. c7
					f2 10. Kc5 f1=Q 11. c8=Q
0:01	19/20	1.43	377296		1. Kc2 Kg5 2. Kd2 f4 3. gxf4+ Kxf4
					4. Kd3 Ke5 5. Ke3 Kd5 6. Kxf3 Kc5
					7. Ke4 Kxb5 8. Kd5 Ka4 9. Ke6 b5
					10. Kd7 b4 11. Kxc7
0:02	20/21	1.74	573123		1. Kc2 Kg5 2. Kd2 f4 3. gxf4+ Kxf4
					4. Kd3 Ke5 5. Ke3 Kd5 6. Kxf3 Kc5
					7. Ke4 Kxb5 8. Kd5 Ka4 9. Ke6 b5
					10. Kd7 b4 11. Kxc7 b3 12. Kd7
0:03	21/22	1.31	847361		1. Kc2 Kg5 2. Kd3 Kh5 3. Kd4 Kg5
					4. Ke5 Kg4 5. Ke6 Kh3 6. Kd7 Kg2
					7. Kxc7 Kxf2 8. Kxb6 Kxg3 9. c7
					f2 10. c8=Q f1=Q 11. Qc3+ Kf4 12.
					Qd4+ Kg3 13. Qe3+ Kg4 14. Kc5 f4
0:07	22/23	1.04	1698333		1. Kc2 Kg5 2. Kd2 f4 3. gxf4+ Kxf4
					4. Kd3 Ke5 5. Ke3 Kd5 6. Kxf3 Kc5
					7. Ke4 Kxb5 8. Kd5 Ka5 9. f4 b5
					10. f5 b4 11. Kd4 Ka4 12. f6 b3
0:37	23/24	2.82	7867145		1. Kc2 Kf6 2. Kd3 Ke5 3. Ke3 Kd5
					4. Kf4 Kc4 5. Kxf5 Kd3 6. Ke6 Ke2
					7. Kd7 Kxf2 8. Kxc7 Kxg3 9. Kxb6
					f2 10. c7 f1=Q 11. c8=Q Qd3 12.
					Qb8+ Kf3 13. Qe5 Qd8+ 14. Qc7 Qd4+
					15. Ka5 Ke4
1:13	24/25	2.95	14639920	1. Kc2 Kf6 2. Kd3 Ke5 3. Ke3 Kd5
					4. Kf4 Kc4 5. Kxf5 Kd3 6. Ke6 Ke2
					7. Kd7 Kxf2 8. Kxc7 Kxg3 9. Kxb6
					f2 10. c7 f1=Q 11. c8=Q Qd3 12.
					Ka6 Qa3+ 13. Kb7 Qf3+ 14. Qc6 Qf4
					15. b6
3:07	25/26	3.01	36679784	1. Kc2 Kf6 2. Kd3 Ke5 3. Ke3 Kd5
					4. Kf4 Kc4 5. Kxf5 Kd3 6. Ke6 Ke2
					7. Kd7 Kxf2 8. Kxc7 Kxg3 9. Kxb6
					f2 10. c7 f1=Q 11. c8=Q Qb1 12.
					Qc7+ Kf2 13. Qc6 Qa2 14. Kb7 Qf7+
					15. Qc7 Qf3+ 16. Ka6
9:44	26/27	3.12	111641888	1. Kc2 Kf6 2. Kd3 Ke5 3. Ke3 Kd5
					4. Kf4 Kc4 5. Kxf5 Kd3 6. Ke6 Ke2
					7. Kd7 Kxf2 8. Kxc7 Kxg3 9. Kxb6
					f2 10. c7 f1=Q 11. c8=Q Qe2 12.
					Qg8+ Kh4 13. Ka6 Kh5 14. Qd5+ Kg4
					15. Qd7+ Kf4 16. Qc7+

• Re: Pawn endgame, solution correct? Rafael Andrist 09:52:32 10/15/01
  • Re: Pawn endgame, solution correct? Simon Finn 11:21:21 10/15/01
    • Re: Pawn endgame, solution correct? Rafael Andrist 11:42:33 10/15/01

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