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Subject: Re: Hard test position (Crafty)

Author: Renze Steenhuisen

Date: 04:47:03 05/04/05

Go up one level in this thread


On May 04, 2005 at 01:04:09, Randy Lovelace wrote:

>[D] rn3rk1/p2q1pp1/4p2p/2ppP1NQ/P7/2P1P3/2P3PP/R4RK1 w - - 0 17
>
>
>Can any program find Rf6?
>
>[Event "URS-ch06 Odessa qf1 "]
>[Site "?"]
>[Date "1929.01.01"]
>[Round "?"]
>[White "Bernstein, A"]
>[Black "Sorokin, N"]
>[Result "1-0"]
>[ECO "C17"]
>[Opening "French"]
>[Variation "Winawer, advance, Bogolyubov variation"]
>
>1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Bd2 Ne7 6.a3 Bxc3 7.bxc3 b6 8.Nf3 Ba6
>9.Bxa6 Nxa6 10.O-O Qd7 11.a4 Nb8 12.Be3 Nf5 13.dxc5 Nxe3 14.fxe3 bxc5 15.
>Ng5 O-O 16.Qh5 h6 17.Rf6 Nc6 18.Rxh6 gxh6 19.Qxh6 f6 20.exf6 Ne5 21.Rf1
>Rab8 22.Rf4 Rb1+ 23.Kf2 Rxf6 24.Qxf6 1-0

Crafty v19.6
              time surplus   0.00  time limit 166666:39 (166666:39)
              depth   time  score   variation (1)
                1     0.00   0.11   1. Nf3
                1->   0.00   0.11   1. Nf3
                2     0.00     --   1. Nf3
                2     0.00  -0.35   1. Nf3 f5 2. exf6 Rxf6
                2     0.00  -0.29   1. Nh3 Nc6
                2->   0.00  -0.29   1. Nh3 Nc6
                3     0.00  -0.05   1. Nh3 Nc6 2. Rab1
                3->   0.01  -0.05   1. Nh3 Nc6 2. Rab1
                4     0.01  -0.29   1. Nh3 Nc6 2. Rab1 Rab8
                4->   0.02  -0.29   1. Nh3 Nc6 2. Rab1 Rab8
                5     0.02  -0.46   1. Nh3 Nc6 2. Rad1 Qc7 3. c4 dxc4
                5     0.03  -0.34   1. Nf3 f5 2. exf6 Rxf6 3. Ne5 Rxf1+
                                    4. Kxf1 Qd6
                5->   0.03  -0.34   1. Nf3 f5 2. exf6 Rxf6 3. Ne5 Rxf1+
                                    4. Kxf1 Qd6
                6     0.05  -0.36   1. Nf3 Nc6 2. c4 dxc4 3. Rad1 Qc7
                6->   0.06  -0.36   1. Nf3 Nc6 2. c4 dxc4 3. Rad1 Qc7
                7     0.11  -0.43   1. Nf3 Nc6 2. Rab1 f5 3. exf6 Rxf6
                                    4. Rb5 Qd6
                7->   0.16  -0.43   1. Nf3 Nc6 2. Rab1 f5 3. exf6 Rxf6
                                    4. Rb5 Qd6
                8     0.28  -0.39   1. Nf3 Nc6 2. Rab1 f5 3. exf6 Rxf6
                                    4. Rb5 Rf5 5. Qg6
                8->   0.38  -0.39   1. Nf3 Nc6 2. Rab1 f5 3. exf6 Rxf6
                                    4. Rb5 Rf5 5. Qg6
                9     0.97  -0.53   1. Nf3 Nc6 2. Rad1 Rab8 3. e4 Rb2 4.
                                    Qg4 Rd8 5. exd5 exd5
                9->   1.30  -0.53   1. Nf3 Nc6 2. Rad1 Rab8 3. e4 Rb2 4.
                                    Qg4 Rd8 5. exd5 exd5
               10     2.71  -0.66   1. Nf3 Nc6 2. Qg4 Qc7 3. Qh5 Rab8 4.
                                    Rf2 Rb2 5. Raf1 Rfb8 <HT>
               10->   3.24  -0.66   1. Nf3 Nc6 2. Qg4 Qc7 3. Qh5 Rab8 4.
                                    Rf2 Rb2 5. Raf1 Rfb8 <HT>
               11     6.45  -0.72   1. Nf3 Nc6 2. Rf2 Rab8 3. Raf1 Na5
                                    4. Ne1 Qxa4 5. Rxf7 Qe4 6. R1f3 Rxf7
                                    7. Qxf7+
               11     9.41  -0.68   1. Nh3 Nc6 2. Rad1 Qc7 3. c4 dxc4 4.
                                    Rd6 Rad8 5. Rfd1 g6 6. Qxh6 Nxe5
               11->   9.93  -0.68   1. Nh3 Nc6 2. Rad1 Qc7 3. c4 dxc4 4.
                                    Rd6 Rad8 5. Rfd1 g6 6. Qxh6 Nxe5
               12    13.46  -0.80   1. Nh3 Nc6 2. Nf2 Rab8 3. e4 Rb2 4.
                                    Qe2 c4 5. exd5 Qxd5 6. Nd1 Rb6 7. Re1
               12    19.90  -0.79   1. Nf3 Nc6 2. Qg4 f5 3. exf6 Rxf6 4.
                                    Nd2 Raf8 5. Rxf6 Rxf6 6. Rf1 Qf7 7.
                                    Rxf6 Qxf6
               12->  20.89  -0.79   1. Nf3 Nc6 2. Qg4 f5 3. exf6 Rxf6 4.
                                    Nd2 Raf8 5. Rxf6 Rxf6 6. Rf1 Qf7 7.
                                    Rxf6 Qxf6
               13    37.20  -0.80   1. Nf3 Nc6 2. Qg4 f5 3. exf6 Rxf6 4.
                                    Nd2 Raf8 5. Rxf6 Rxf6 6. Rf1 Rxf1+
                                    7. Kxf1 Ne5 8. Qh5 Qf7+ 9. Qxf7+ Kxf7
                                    10. Ke2
               13->  48.90  -0.80   1. Nf3 Nc6 2. Qg4 f5 3. exf6 Rxf6 4.
                                    Nd2 Raf8 5. Rxf6 Rxf6 6. Rf1 Rxf1+
                                    7. Kxf1 Ne5 8. Qh5 Qf7+ 9. Qxf7+ Kxf7
                                    10. Ke2
               14     1:22  -0.74   1. Nf3 Nc6 2. Qg4 f5 3. exf6 Rxf6 4.
                                    c4 Qf7 5. cxd5 exd5 6. c4 Rd8 7. cxd5
                                    Rxd5 8. Qc8+ Nd8 9. Qg4
               14->   1:36  -0.74   1. Nf3 Nc6 2. Qg4 f5 3. exf6 Rxf6 4.
                                    c4 Qf7 5. cxd5 exd5 6. c4 Rd8 7. cxd5
                                    Rxd5 8. Qc8+ Nd8 9. Qg4
               15     4:42  -0.79   1. Nf3 Nc6 2. Qg4 Qc7 3. Qf4 f6 4.
                                    exf6 Qxf4 5. exf4 Rxf6 6. Ne5 Nxe5
                                    7. fxe5 Rxf1+ 8. Rxf1 Rf8 9. Rxf8+
                                    Kxf8 10. Kf2 Ke7
               15->   5:19  -0.79   1. Nf3 Nc6 2. Qg4 Qc7 3. Qf4 f6 4.
                                    exf6 Qxf4 5. exf4 Rxf6 6. Ne5 Nxe5
                                    7. fxe5 Rxf1+ 8. Rxf1 Rf8 9. Rxf8+
                                    Kxf8 10. Kf2 Ke7
               16     9:50  -0.78   1. Nf3 Nc6 2. Qg4 Qc7 3. Qf4 Rad8 4.
                                    Kh1 Rd7 5. Rf2 g5 6. Qg3 c4 7. Qh3
                                    Kg7 8. Qg3 f5 9. exf6+ Rxf6
               16->  20:30  -0.78   1. Nf3 Nc6 2. Qg4 Qc7 3. Qf4 Rad8 4.
                                    Kh1 Rd7 5. Rf2 g5 6. Qg3 c4 7. Qh3
                                    Kg7 8. Qg3 f5 9. exf6+ Rxf6
               17    29:39  -0.91   1. Nf3 Nc6 2. Qg4 Qc7 3. Qf4 Qa5 4.
                                    c4 Qc3 5. cxd5 exd5 6. Rae1 Rab8 7.
                                    e4 Rb4 8. Qd2 Qxd2 9. Nxd2 Rd8 10.
                                    exd5 Rxd5
               17    64:28  -0.83   1. Nh3 Qb7 2. Nf2 Nd7 3. e4 dxe4 4.
                                    Rae1 Qd5 5. Nxe4 Rad8 6. Ng3 Qd2 7.
                                    Ne4 Qxc2 8. Nd6 Qg6 9. Qf3
               17    73:30   8/40*  1. Rf6
ok.
               17->  78:56  -0.83   1. Nh3 Qb7 2. Nf2 Nd7 3. e4 dxe4 4.
                                    Rae1 Qd5 5. Nxe4 Rad8 6. Ng3 Qd2 7.
                                    Ne4 Qxc2 8. Nd6 Qg6 9. Qf3
               18   220:25  -0.74   1. Nh3 Nc6 2. Nf2 Qe8 3. e4 Rd8 4.
                                    Rae1 Ne7 5. exd5 Nxd5 6. a5 Qa4 7.
                                    Qf3 f6 8. Qh3 f5 9. Rb1 Rf7 10. Nd3
                                    Qxa5
               18-> 231:11  -0.74   1. Nh3 Nc6 2. Nf2 Qe8 3. e4 Rd8 4.
                                    Rae1 Ne7 5. exd5 Nxd5 6. a5 Qa4 7.
                                    Qf3 f6 8. Qh3 f5 9. Rb1 Rf7 10. Nd3
                                    Qxa5
               19   277:30   1/40*  1. Nh3



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