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Subject: Re: Beautiful Rook Sacrifice..!

Author: Robert Hyatt

Date: 07:25:17 03/27/02

Go up one level in this thread


On March 27, 2002 at 09:14:09, Art Basham wrote:

>Here white ( a GM) played Rxd5+ and won...!
>
>Sorry I do not have all of the moves in this exciting game...
>
>I posted this same diagram several years ago, and someone here said that a
>certain personality in ChessMaster 4000 (or 5000)
>found it in 1 sec. at only about 4 ply..!!
>
>[D]r1bk3r/pp2n2p/2n2N2/1R1p3Q/2p4P/P1p5/2qBBPP1/4K2R w - -
>
>The Doctor?  program also finds it in about 5 sec. on my machine.


Crafty finds it in just under 4 seconds, and thinks it is a perpetual...

                7->   1.22  -1.91   1. Bf4 Be6 2. Rxb7 Qa2 3. Bc1 Kc8 4.
                                    Rb5
                8     2.05  -2.06   1. Bf4 Be6 2. Rxb7 Qa2 3. Qh6 Qa1+
                                    4. Bc1 Kc8 5. Rb5
                8     3.86     ++   1. Rxd5+!!
                8     4.27   0.00   1. Rxd5+ Nxd5 2. Qxd5+ Kc7 3. Bf4+
                                    Kb6 4. Be3+ Kc7 5. Bf4+
         (3)    8->   4.27   0.00   1. Rxd5+ Nxd5 2. Qxd5+ Kc7 3. Bf4+
                                    Kb6 4. Be3+ Kc7 5. Bf4+
         (2)    9     5.35   0.00   1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+
                                    Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+
                                    Kf7 7. Bh5+
                9->   5.58   0.00   1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+
                                    Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+
                                    Kf7 7. Bh5+
               10     8.52   0.00   1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+
                                    Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+
                                    Kf7 7. Bh5+
               10->   9.46   0.00   1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+
                                    Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+
                                    Kf7 7. Bh5+
               11    17.11   0.00   1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+
                                    Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+
                                    Kf7 7. Bh5+
               11->  20.61   0.00   1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+
                                    Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+
                                    Kf7 7. Bh5+
               12    43.10   0.00   1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+
                                    Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+
                                    Kf7 7. Bh5+



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