Nezhmetdinov-Zagorovsky, URS 1967

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jdart
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Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

Nezhmetdinov-Zagorovsky, URS 1967

Post by jdart »

[D] 7q/3k2p1/n1p1p1Pr/1pPpPpQ1/3P1N1p/1P2KP2/6P1/7R w - -

bm Nxd5!

Arasan finds this but takes quite a while, about 400 seconds (depth 17) with 2 cores on a Q6600.

--Jon
bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: Nezhmetdinov-Zagorovsky, URS 1967

Post by bob »

jdart wrote:[D] 7q/3k2p1/n1p1p1Pr/1pPpPpQ1/3P1N1p/1P2KP2/6P1/7R w - -

bm Nxd5!

Arasan finds this but takes quite a while, about 400 seconds (depth 17) with 2 cores on a Q6600.

--Jon
Current version of Crafty picks up on this at about 1 minute on my 2.0ghz laptop (core2 duo). Working on some pruning ideas I haven't tried previously.

Code: Select all

               18    20.19   1.56   1. g4 fxg4 2. fxg4 Qf8 3. Rf1 Qe7 4.
                                    Nxe6 Qxg5+ 5. Nxg5 Rxg6 6. Rf7+ Ke8
                                    7. Ra7 Rxg5 8. Kf4 h3 9. Kxg5 h2 10.
                                    Ra8+ Kd7 11. Rh8
               18    59.48     +1   1. Nxd5!                         
               18     1:45     +3   1. Nxd5!                         
               18     2:04   2.47   1. Nxd5 cxd5 2. c6+ Kxc6 3. Qe7 Qa8
                                    4. Qxe6+ Kb7 5. Qxd5+ Ka7 6. Qf7+ Qb7
                                    7. d5 Rh5 8. d6 Kb6 9. d7 Qc7 10. Qe6+
                                    Ka7 11. Kf4 b4 12. Qd5