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Subject: Re: ECM.1354

Author: Ed Schröder

Date: 03:06:56 09/24/01

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On September 24, 2001 at 01:41:30, Michel Langeveld wrote:

>a3 seems to be also a very good move
>
>======================================================================
>! ECM.1354 !
>======================================================================
>
>       +---+---+---+---+---+---+---+---+
>    8  | *R|   |   | *Q|   | *R| *K|   |
>       +---+---+---+---+---+---+---+---+
>    7  | *P|   |   |   |   |   | *P| *P|
>       +---+---+---+---+---+---+---+---+
>    6  | *B| *N|   | *P|   | *P|   |   |
>       +---+---+---+---+---+---+---+---+
>    5  |   |   | *P| P |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    4  |   | *B| P |   | N | P |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   |   | B |   | R |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  | P | B | Q |   |   |   | P | P |
>       +---+---+---+---+---+---+---+---+
>    1  | R |   |   |   |   |   | K |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>solution 1. Ng5
>              time surplus   0.00  time limit 20:00 (20:00)
>         nss  depth   time  score   variation (1)
>                7     0.33   0.56   1. Ng3 Kh8 2. a3 Ba5 3. Re3 Re8 4.
>                                    Rxe8+ Qxe8 5. Rb1
>                7->   0.71   0.56   1. Ng3 Kh8 2. a3 Ba5 3. Re3 Re8 4.
>                                    Rxe8+ Qxe8 5. Rb1
>                8     0.88   0.42   1. Ng3 Kh8 2. a3 Ba5 3. Re3 Re8 4.
>                                    Nf5 Rxe3 5. Nxe3
>                8     1.54   0.47   1. Nf2 Kh8 2. Rh3 h6 3. Rb1 Re8 4.
>                                    Bg6 Re7
>                8->   4.18   0.47   1. Nf2 Kh8 2. Rh3 h6 3. Rb1 Re8 4.
>                                    Bg6 Re7
>                9     5.11   0.45   1. Nf2 h6 2. a3 Ba5 3. Re3 Re8 4. Re6
>                                    Rb8 5. Rb1
>                9     9.28   0.52   1. Rh3 h6 2. a3 Ba5 3. Rb1 Rb8 4. Re3
>                                    Re8 5. Qe2
>                9    14.25   0.54   1. Re3 Rb8 2. Ng3 Re8 3. Re6 Kf8 4.
>                                    Nf5 Nc8 5. Rb1
>                9->  15.43   0.54   1. Re3 Rb8 2. Ng3 Re8 3. Re6 Kf8 4.
>                                    Nf5 Nc8 5. Rb1
>               10    31.38   0.48   1. Re3 Qd7 2. Ng3 Kh8 3. a3 Ba5 4.
>                                    Rf1 Rae8 5. Bf5 Qc7 <HT>
>               10    46.82     ++   1. Ng5!!
>               10     1:02   2.45   1. Ng5 h6 2. Ne6 Qd7 3. Nxf8 Rxf8 4.
>                                    a3 Ba5 5. Bh7+ Kh8 6. Bf5
>               10->   1:03   2.45   1. Ng5 h6 2. Ne6 Qd7 3. Nxf8 Rxf8 4.
>                                    a3 Ba5 5. Bh7+ Kh8 6. Bf5
>               11     1:14   2.45   1. Ng5 h6 2. Ne6 Qc8 3. Nxf8 Qxf8 4.
>                                    a3 Ba5 5. Re3 Re8 6. Re6
>               11->   1:19   2.45   1. Ng5 h6 2. Ne6 Qc8 3. Nxf8 Qxf8 4.
>                                    a3 Ba5 5. Re3 Re8 6. Re6
>               12     2:07     ++   1. Ng5!!
>               12     5:37   3.08   1. a3 Ba5 2. Ng5 Re8 3. Bxh7+ Kf8 4.
>                                    Bg6 Nxc4 5. Rh3 Qb6 6. Rh8+ Ke7 7.
>                                    Rxe8+ Rxe8 8. Qe4+ Ne5 9. Bxe5 dxe5
>                                    10. Bxe8 Kxe8
>               12->   5:44   3.08   1. a3 Ba5 2. Ng5 Re8 3. Bxh7+ Kf8 4.
>                                    Bg6 Nxc4 5. Rh3 Qb6 6. Rh8+ Ke7 7.
>                                    Rxe8+ Rxe8 8. Qe4+ Ne5 9. Bxe5 dxe5
>                                    10. Bxe8 Kxe8
>               13     6:18   3.37   1. a3 Ba5 2. Ng5 Re8 3. Bxh7+ Kf8 4.
>                                    Bg6 Nxc4 5. Bxe8 Qxe8 6. Ne6+ Kg8 7.
>                                    Rg3 Kh8 8. Rxg7 Nxb2 9. Qxb2
>               13->   6:56   3.37   1. a3 Ba5 2. Ng5 Re8 3. Bxh7+ Kf8 4.
>                                    Bg6 Nxc4 5. Bxe8 Qxe8 6. Ne6+ Kg8 7.
>                                    Rg3 Kh8 8. Rxg7 Nxb2 9. Qxb2
>               14     8:47     --   1. a3
>               14     9:35   3.05   1. a3 Ba5 2. Ng5 h6 3. Bh7+ Kh8 4.
>                                    Rh3 Nxc4 5. Bg8 f5 6. Bf7 Qxg5 7. fxg5
>                                    Rxf7 8. gxh6 Nxb2 9. hxg7+ Kg8 10.
>                                    Qxb2 Rxg7
>              time=20:01  cpu=99%  mat=0  n=588469023  fh=92%  nps=489815
>              ext-> chk=29402175 pp=245159 1rep=3988293 mate=308781
>              predicted=0  nodes=588469023  evals=96984092
>              endgame tablebase-> probes done=0  successful=0
>              hashing-> trans/ref=21%  pawn=9%  used=99%
>----------------------> solution incorrect (104/113).


I don't have ECM 1354. What's the EPD?

Ed



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