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Subject: Re: tough position (Crafty)

Author: Mikael Bäckman

Date: 02:28:38 05/05/05

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On May 05, 2005 at 05:00:50, Renze Steenhuisen wrote:

>On May 04, 2005 at 21:22:57, Will Singleton wrote:
>
>>On May 04, 2005 at 17:48:32, Renze Steenhuisen wrote:
>>
>>>On May 04, 2005 at 11:50:52, Will Singleton wrote:
>>>
>>>>[d]r2qrbk1/1b1n2p1/pn1p3p/8/2p1N3/R6P/1P1B1PPN/1B1QR1K1 w - - bm Ng4;
>>>>
>>>>This is from a recent ICC game, Amateur-Tinker.  Amateur played Rg3, which
>>>>works, but the surprising Ng4 should win.
>>>
>>>              time surplus   0.00  time limit 166666:39 (166666:39)
>>>              depth   time  score   variation (1)
>>>                1     0.00  -0.61   1. Qf3
>>>                1->   0.00  -0.61   1. Qf3
>>>                2     0.00     --   1. Qf3
>>>                2     0.00  -1.21   1. Qf3 Qh4
>>>                2     0.00  -1.13   1. Qg4 Qe7
>>>                2->   0.00  -1.13   1. Qg4 Qe7
>>>                3     0.00     --   1. Qg4
>>>                3     0.01  -3.31   1. Qg4 d5 2. Rae3 dxe4 3. Bxe4 Bxe4
>>>                                    4. Rxe4 Rxe4 5. Rxe4
>>>                3     0.01  -1.05   1. Bb4 Qc7 2. Qf3
>>>                3->   0.01  -1.05   1. Bb4 Qc7 2. Qf3
>>>                4     0.02  -1.30   1. Bb4 Qc7 2. Rae3 d5
>>>                4->   0.05  -1.30   1. Bb4 Qc7 2. Rae3 d5
>>>                5     0.07  -1.10   1. Bb4 d5 2. Nd6 Bxd6 3. Rxe8+ Qxe8
>>>                                    4. Bxd6
>>>                5->   0.14  -1.10   1. Bb4 d5 2. Nd6 Bxd6 3. Rxe8+ Qxe8
>>>                                    4. Bxd6
>>>                6     0.29  -1.37   1. Bb4 Nf6 2. Qf3 d5 3. Nxf6+ Qxf6
>>>                                    4. Qxf6 Rxe1+ 5. Bxe1 gxf6
>>>                6     0.59  -1.19   1. Rae3 d5 2. Nc3 Rxe3 3. Bxe3 Qf6
>>>                                    4. Qg4
>>>                6->   0.61  -1.19   1. Rae3 d5 2. Nc3 Rxe3 3. Bxe3 Qf6
>>>                                    4. Qg4
>>>                7     0.66  -1.38   1. Rae3 d5 2. Nc3 Rxe3 3. Bxe3 Qf6
>>>                                    4. Bd4 Qf4
>>>                7     1.08  -1.25   1. Bb4 d5 2. Nd6 Bxd6 3. Rxe8+ Qxe8
>>>                                    4. Bxd6 Qe6 5. Bf4
>>>                7->   1.93  -1.25   1. Bb4 d5 2. Nd6 Bxd6 3. Rxe8+ Qxe8
>>>                                    4. Bxd6 Qe6 5. Bf4
>>>                8     2.47  -1.47   1. Bb4 d5 2. Bxf8 Rxf8 3. Nd6 Nc5 4.
>>>                                    Nxb7 Nxb7 5. Re6 d4
>>>                8     3.83  -1.08   1. Rae3 d5 2. Nc3 Rxe3 3. Bxe3 Bb4
>>>                                    4. Bd4 Bxc3 5. Bxc3 Qg5
>>>                8->   4.75  -1.08   1. Rae3 d5 2. Nc3 Rxe3 3. Bxe3 Bb4
>>>                                    4. Bd4 Bxc3 5. Bxc3 Qg5
>>>                9     5.58  -1.29   1. Rae3 d5 2. Nc3 Rxe3 3. Bxe3 Bd6
>>>                                    4. Qg4 Qf6 5. Bd4 Ne5
>>>                9     8.07  -1.25   1. Bb4 d5 2. Nd6 Bxd6 3. Rxe8+ Qxe8
>>>                                    4. Bxd6 Qe6 5. Bf4 Re8 6. Qf3
>>>                9->  12.11  -1.25   1. Bb4 d5 2. Nd6 Bxd6 3. Rxe8+ Qxe8
>>>                                    4. Bxd6 Qe6 5. Bf4 Re8 6. Qf3
>>>               10    23.54  -1.37   1. Bb4 Nf6 2. Ng3 Nfd5 3. Qc2 Rxe1+
>>>                                    4. Bxe1 Nf6 5. Qf5 d5 6. Re3 d4
>>>               10    28.52  -1.26   1. Rae3 d5 2. Nc3 Rxe3 3. Bxe3 Bc5
>>>                                    4. Bg6 Qf6 5. Qh5 Bxe3 6. Rxe3 Rd8
>>>               10     1:01  -1.23   1. Ng3 Rxe1+ 2. Qxe1 Qf6 3. Ng4 Qf7
>>>                                    4. Bf5 Nc5 5. Bb4 Nba4 6. Bxc5 Nxc5
>>>                                    7. Re3
>>>               10->   1:07  -1.23   1. Ng3 Rxe1+ 2. Qxe1 Qf6 3. Ng4 Qf7
>>>                                    4. Bf5 Nc5 5. Bb4 Nba4 6. Bxc5 Nxc5
>>>                                    7. Re3
>>>               11     1:29  -1.17   1. Ng3 Rxe1+ 2. Qxe1 Qf6 3. Ng4 Qf7
>>>                                    4. Bf5 Nc5 5. Be3 Nba4 6. Bd4 Qd5 7.
>>>                                    Bxc5 Nxc5
>>>               11     2:20     ++   1. Rg3!!
>>>               11     3:24  -0.52   1. Rg3 Bxe4 2. Bxe4 d5 3. Ng4 Kh8 4.
>>>                                    Bg6 Rxe1+ 5. Qxe1 Qc7 6. Re3 Bc5 7.
>>>                                    Re6 Rd8 <HT>
>>>               11->   3:32  -0.52   1. Rg3 Bxe4 2. Bxe4 d5 3. Ng4 Kh8 4.
>>>                                    Bg6 Rxe1+ 5. Qxe1 Qc7 6. Re3 Bc5 7.
>>>                                    Re6 Rd8 <HT>
>>>               12     5:12  -0.42   1. Rg3 Bxe4 2. Bxe4 d5 3. Ng4 Kh8 4.
>>>                                    Bg6 Rxe1+ 5. Qxe1 Bc5 6. Bf4 Qe7 7.
>>>                                    Qxe7 Bxe7 8. Kh2
>>>               12->   5:46  -0.42   1. Rg3 Bxe4 2. Bxe4 d5 3. Ng4 Kh8 4.
>>>                                    Bg6 Rxe1+ 5. Qxe1 Bc5 6. Bf4 Qe7 7.
>>>                                    Qxe7 Bxe7 8. Kh2
>>>               13     8:33  -0.55   1. Rg3 Bxe4 2. Bxe4 d5 3. Bg6 Rxe1+
>>>                                    4. Qxe1 Qe7 5. Qb1 Qh4 6. Nf3 Qf6 7.
>>>                                    Bc3 Qf4 8. Rg4 Qc7
>>>               13    23:28  -0.32   1. Qc2 d5 2. Nd6 Rxe1+ 3. Bxe1 Nf6
>>>                                    4. Nxb7 Qc7 5. Na5 Bxa3 6. bxa3 d4
>>>                                    7. Ng4 Nxg4 8. Qh7+ Kf7 9. hxg4
>>>               13    24:24  10/51*  1. Ng4
>>>ok.
>>>               13->  25:03  -0.32   1. Qc2 d5 2. Nd6 Rxe1+ 3. Bxe1 Nf6
>>>                                    4. Nxb7 Qc7 5. Na5 Bxa3 6. bxa3 d4
>>>                                    7. Ng4 Nxg4 8. Qh7+ Kf7 9. hxg4
>>>               14    35:25  -0.28   1. Qc2 d5 2. Nd6 Rxe1+ 3. Bxe1 Nf6
>>>                                    4. Nxb7 Qe7 5. Bc3 Qxb7 6. Bxf6 gxf6
>>>                                    7. Rf3 Rd8 8. Ng4 Qf7 9. Nxf6+ Kh8
>>>               14    42:15  13/51*  1. Ng4
>>>ok.
>>>               14->  45:02  -0.28   1. Qc2 d5 2. Nd6 Rxe1+ 3. Bxe1 Nf6
>>>                                    4. Nxb7 Qe7 5. Bc3 Qxb7 6. Bxf6 gxf6
>>>                                    7. Rf3 Rd8 8. Ng4 Qf7 9. Nxf6+ Kh8
>>>               15    65:21  -0.30   1. Qc2 Bxe4 2. Rxe4 Rxe4 3. Qxe4 Nf6
>>>                                    4. Qd4 d5 5. Rf3 Be7 6. Bf5 Qc7 7.
>>>                                    Be3 Rb8 8. Be6+ Kh8 9. Bf4 Bd6
>>>               15    67:00   3/51*  1. Ng4
>>>ok.
>>>               15   124:15   3/51*  1. Ng4
>>
>>I don't understand the output relating to Ng4, can you explain?
>
>               15    65:21  -0.30   1. Qc2 Bxe4 2. Rxe4 Rxe4 3. Qxe4 Nf6
>                                    4. Qd4 d5 5. Rf3 Be7 6. Bf5 Qc7 7.
>                                    Be3 Rb8 8. Be6+ Kh8 9. Bf4 Bd6
>               15   173:45   0.01   1. Ng4 Bxe4 2. Bxe4 d5 3. Nxh6+ gxh6
>                                    4. Rg3+ Bg7 5. Rxg7+ Kxg7 6. Qg4+ Kh8
>                                    7. Qg6 dxe4 8. Qxh6+ Kg8 9. Qg6+ Kh8
>                                    10. Qh6+
>               15-> 190:53   0.01   1. Ng4 Bxe4 2. Bxe4 d5 3. Nxh6+ gxh6
>                                    4. Rg3+ Bg7 5. Rxg7+ Kxg7 6. Qg4+ Kh8
>                                    7. Qg6 dxe4 8. Qxh6+ Kg8 9. Qg6+ Kh8
>                                    10. Qh6+
>               16   680:30     ++   1. Ng4!!
>               16   795:00   1/51*  1. Ng4
>
>
>And the output relating to Ng4 was to show when it was being considered at the
>root.
>
>Cheers!


What hardware are you using? I'm surprised it takes this long for crafty to find
it.

/Mikael




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