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Subject: Re: Testposition (tactical)

Author: Gareth McCaughan

Date: 15:40:40 09/19/01

Go up one level in this thread


Eduard Nemeth wrote:

> [D]2qr3r/1p1n1ppk/p3p2p/5b2/2PP2NQ/6R1/P1B2PPP/R5K1 w - - 0 1
>
> 1.) What is here "real" the strongest move?
> 2.) Can your program it find?

Crafty 18.11, Athlon 1GHz, 12M+2.5M hash:

         nss  depth   time  score   variation (1)
                6->   0.24   1.44   1. Bxf5+ exf5 2. Ne3 Nf6 3. Rd1 Rde8
                                    4. d5 Ne4
                7     0.53   1.42   1. Bxf5+ exf5 2. Ne3 Nf6 3. f3 Rde8
                                    4. Re1 Qe6 5. d5
                7->   0.76   1.42   1. Bxf5+ exf5 2. Ne3 Nf6 3. f3 Rde8
                                    4. Re1 Qe6 5. d5
                8     1.28     --   1. Bxf5+
                8     1.43   1.06   1. Bxf5+ exf5 2. Ne3 Nf6 3. d5 Rhe8
                                    4. Rf3 Re4 5. Qh3 Ng4 6. Nxg4 fxg4
                8->   2.35   1.06   1. Bxf5+ exf5 2. Ne3 Nf6 3. d5 Rhe8
                                    4. Rf3 Re4 5. Qh3 Ng4 6. Nxg4 fxg4
                9     4.27   1.16   1. Bxf5+ exf5 2. Ne3 Nf6 3. Rd1 Rde8
                                    4. d5 Ne4 5. Rf3 Nd6 6. Re1
                9    10.26     ++   1. Rh3!!
                9    15.29   1.50   1. Rh3 Kg8 2. Bxf5 exf5 3. Ne3 Re8
                                    4. Rd1 Kf8 5. Qf4 Nb6
                9->  17.79   1.50   1. Rh3 Kg8 2. Bxf5 exf5 3. Ne3 Re8
                                    4. Rd1 Kf8 5. Qf4 Nb6
               10    21.71   1.54   1. Rh3 Kg8 2. Bxf5 exf5 3. Ne3 Nf8
                                    4. Nxf5 Ng6 5. Qe4 Qxc4 6. Qxb7
               10->  47.00   1.54   1. Rh3 Kg8 2. Bxf5 exf5 3. Ne3 Nf8
                                    4. Nxf5 Ng6 5. Qe4 Qxc4 6. Qxb7
               11    55.23   1.26   1. Rh3 Kg8 2. Bxf5 exf5 3. Ne3 Nf8
                                    4. Nxf5 Ng6 5. d5 b5 6. Qg4 bxc4
               11     2:20     ++   1. Re1!!
               11     3:20   2.23   1. Re1 Rde8 2. Nxh6 gxh6 3. Qh5 Rhf8
                                    4. Rxe6 Rxe6 5. Qxf5+ Rg6 6. Rxg6 Qxc4
               11     4:47   2.60   1. Nxh6 gxh6 2. Qh5 Ne5 3. dxe5 Qd7
                                    4. Bxf5+ exf5 5. Rg5 Rhg8 6. Rxf5 Rg6
                                    7. Qf3 Kg8
               11->   4:58   2.60   1. Nxh6 gxh6 2. Qh5 Ne5 3. dxe5 Qd7
                                    4. Bxf5+ exf5 5. Rg5 Rhg8 6. Rxf5 Rg6
                                    7. Qf3 Kg8
               12     5:29   2.71   1. Nxh6 gxh6 2. Qh5 Ne5 3. dxe5 Qd7
                                    4. Bxf5+ exf5 5. Rg5 Rhe8 6. Rxf5 Kg8
                                    7. c5 Qe6 8. Qg4+ Kh7
               12     7:31     ++   1. Re1!!
               12     9:26   3.43   1. Re1 Qxc4 2. Nxh6 gxh6 3. Qh5 Rhf8
                                    4. Rxe6 Qxe6 5. Bxf5+ Qxf5 6. Qxf5+
                                    Kh8 7. Qh5 Kh7 8. Rh3 Rde8 9. Qxh6+
               12->  10:09   3.43   1. Re1 Qxc4 2. Nxh6 gxh6 3. Qh5 Rhf8
                                    4. Rxe6 Qxe6 5. Bxf5+ Qxf5 6. Qxf5+
                                    Kh8 7. Qh5 Kh7 8. Rh3 Rde8 9. Qxh6+
               13    15:24   3.60   1. Re1 Bxc2 2. Nxh6 g6 3. Nxf7+ Kg7
                                    4. Nxh8 Rxh8 5. Qe7+ Kg8 6. Qxe6+ Kg7
                                    7. Re2 Bb1 8. Qe7+ Kg8 9. c5
               13->  17:49   3.60   1. Re1 Bxc2 2. Nxh6 g6 3. Nxf7+ Kg7
                                    4. Nxh8 Rxh8 5. Qe7+ Kg8 6. Qxe6+ Kg7
                                    7. Re2 Bb1 8. Qe7+ Kg8 9. c5
               14    28:27   3.55   1. Re1 Bxc2 2. Nxh6 g6 3. Nxf7+ Kg7
                                    4. Nxh8 Rxh8 5. Qe7+ Kg8 6. Qxe6+ Kg7
                                    7. Re2 Bb1 8. d5 Nc5 9. Qe7+ Kh6

Giving it 48M+10M hash makes it about 10% faster.



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