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Subject: Re: The Grind?

Author: John Brownlee

Date: 03:13:48 05/02/05

Go up one level in this thread


On May 01, 2005 at 12:35:59, chandler yergin wrote:

>I think someone posted this position as 'the grind'?
>
>Shredder finds the Mate.
>
>[D]1rb3kr/p2q1ppp/1p1N4/3QPP2/8/8/P1P3PP/1R3R1K w
>
>.e6 Qc7 2.exf7+ Kf8 3.Rbe1 g6 4.fxg6 Be6
>  +-  (5.66)   Depth: 7/21   00:00:45  54kN
>1.e6 Qc7 2.exf7+ Kf8 3.Rbe1 Bb7 4.Re8+ Rxe8 5.fxe8Q#
>  +-  (6.16)   Depth: 7/21   00:00:47  62kN
>1.e6 Qc7 2.exf7+ Kf8 3.Rbe1 Bd7 4.Qe5 Qd8 5.f6 g6
>  +-  (6.44)   Depth: 7/29   00:00:49  77kN
>1.e6 Qc7 2.exf7+ Kf8 3.Rbe1 Bd7 4.Qe5 Qd8 5.f6 Qe7 6.Qxe7#
>  +-  (6.69)   Depth: 8/22   00:00:55  100kN


Slowchess found this mate in 16 (after 10 hrs on 1.8 GHz P4):
Regards,
John

Slow:
   7	00:00	     274.339	422.060	+4.92	e5e6 Qd7c7 e6xf7+ Kg8f8 Rb1e1 Bc8d7 Qd5e5
Qc7d8 Re1e2
   8	00:01	     653.600	466.857	+7.96	e5e6 Qd7d8 e6xf7+ Kg8f8 Rb1e1 Bc8d7 Re1e8+
Bd7xe8 f7xe8Q+ Qd8xe8 Nd6xe8 Rb8xe8 Rf1d1
   9	00:03	   1.441.542	513.004	+8.00	e5e6 Qd7c7 Rb1e1 h7h6 e6e7 Kg8h7 Qd5xf7
Qc7xd6 f5f6 Rh8g8 e7e8Q
  10	00:04	   2.239.218	506.610	+8.08	e5e6 Qd7c7 Rb1e1 h7h6 e6e7 Kg8h7 Qd5xf7
Qc7xd6 f5f6 Rh8g8 Qf7xg8+ Kh7xg8 e7e8Q+ Kg8h7 f6f7 Bc8d7 Qe8xb8 Qd6xb8 f7f8Q
Qb8xf8 Rf1xf8
  11	00:09	   4.901.716	523.128	+10.40	e5e6 f7xe6 f5xe6 Qd7e7 Nd6f5 Qe7f6 Nf5h6+
g7xh6 Rf1xf6 Bc8b7 Qd5d7 h6h5
  12	00:27	  14.727.290	549.115	+12.64	e5e6 f7xe6 f5xe6 Bc8b7 Qd5e5 Bb7xg2+
Kh1xg2 Qd7a4 Nd6f5 Qa4g4+ Kg2h1 h7h5 Rf1g1 Rb8b7 e6e7 Qg4f3+ Rg1g2 Rb7xe7
Nf5xe7+ Kg8f7 Qe5xg7+ Kf7e6 Qg7xh8 Ke6xe7
  13	01:03	  34.650.987	550.365	+13.20	e5e6 Bc8b7 e6xd7 Bb7xd5 Nd6c8 h7h6 d7d8Q+
Kg8h7 Qd8xd5 Rb8xc8 Qd5xf7 Rh8f8 Qf7xa7 Rc8xc2 f5f6 Rf8g8 Rb1xb6
  14	01:23	  44.788.703	539.622	+13.24	e5e6 Bc8b7 e6xd7 Bb7xd5 Nd6c8 Bd5xg2+
Kh1xg2 h7h6 Rb1e1 Kg8h7 Re1e8 Rb8a8 Re8xh8+ Kh7xh8 d7d8Q+ Kh8h7 Qd8d7 Kh7h8
Nc8xa7
  15	02:12	  70.378.285	532.362	+13.52	e5e6 Bc8b7 e6xd7 Bb7xd5 Nd6c8 h7h6 d7d8Q+
Kg8h7 Qd8xd5 Rh8xc8 Qd5xf7 Rc8xc2 Qf7g6+ Kh7h8 f5f6 Rc2c7 Rb1c1 Rc7d7 f6xg7+
Rd7xg7 Qg6xh6+ Kh8g8 Rc1c3
  16	04:24	 141.045.413	533.252	+14.04	e5e6 Bc8b7 e6xd7 Bb7xd5 Nd6c8 h7h6 d7d8Q+
Kg8h7 Qd8xd5 Rh8xc8 Qd5xf7 Rc8f8 Qf7g6+ Kh7g8 f5f6 Rf8f7 f6xg7 Rf7xg7 Qg6xh6
Rb8e8 Rb1e1 Re8xe1 Rf1xe1
  17	11:25	 370.452.728	540.625	+14.52	e5e6 Bc8b7 e6xd7 Bb7xd5 Nd6c8 h7h6 d7d8Q+
Kg8h7 Qd8xd5 Rb8xc8 Qd5xf7 Rh8g8 Qf7g6+ Kh7h8 f5f6 Rc8c7 Rb1d1 Rg8b8 f6f7 Rc7c8
Rd1d7 Rc8f8 Rd7xa7
  18	34:43	1.196.992.762	574.425	+15.92	e5e6 Bc8b7 e6xd7 Bb7xd5 Nd6c8 h7h6
d7d8Q+ Kg8h7 Qd8xd5 f7f6 Nc8xa7 Rh8d8 Qd5f7 Rd8d6 Qf7c7 Rb8d8 Na7c6 Rd8d7 Qc7xb6
Rd6d2
  19	1:30:32	3.265.802,122	601.168	+16.24	e5e6 Bc8b7 e6xd7 Bb7xd5 Nd6c8 h7h6
d7d8Q+ Kg8h7 Qd8xd5 f7f6 Nc8xa7 Rh8d8 Qd5f7 Kh7h8 Qf7c7 Rd8g8 a2a4 Rb8d8 Rb1xb6
Rd8d2 Na7b5
  20	6:53:22	15.461.528,968	360	+M16	e5e6 Bc8b7 e6xf7+ Kg8f8 Qd5e5 Bb7c6 f5f6
g7g6 Rb1d1 h7h5 Nd6b5 Qd7xf7 Qe5xb8+ Bc6e8 Rd1e1 h5h4 Nb5d6 Kf8g8 Re1xe8+ Qf7xe8
Qb8xe8+ Kg8h7 Qe8f7+ Kh7h6 Qf7g7+ Kh6h5 Qg7xh8+ Kh5g4 h2h3+ Kg4g3 Nd6e4+
  21	10:17:35	24.415.861,371	568	+M16	e5e6 Bc8b7 e6xf7+ Kg8f8 Qd5e5 Bb7c6 f5f6
g7g6 Rb1d1 h7h5 Nd6b5 Qd7xf7 Qe5xb8+ Bc6e8 Rd1e1 h5h4 Nb5d6 Kf8g8 Re1xe8+ Qf7xe8
Qb8xe8+ Kg8h7 Qe8d7+ Kh7h6 Qd7g7+ Kh6h5 Qg7xh8+ Kh5g4 h2h3+ Kg4g3 Nd6e4+




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