Author: Bernhard Bauer
Date: 02:38:52 03/26/99
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On March 25, 1999 at 16:15:12, Howard Exner wrote: >On March 25, 1999 at 04:19:27, Harald Faber wrote: > >>On March 25, 1999 at 03:42:20, Howard Exner wrote: > >>>Instead of Kd6, h4 looks like it should win. Black will have to eventually >>>play h6 or h5 but then white plays f6. > >8/p5pp/P7/4KP2/2k5/8/7P/8 w - - id Prog X - Prog Y; bm h2h4; >h3 also wins but this is a good position to test computers to see if they avoid >Kd6 and choose instead h4 or h3. It's often difficult to give only one *best* move for a certain position. While I agree that h4 wins Ke6 instead of h4 should be considered too. On a 2xPPro 232 MHz system crafty16.6 finds h4 at ply 12 within 9 sec whith a score of 2.86. Crafty fails high within 10 sec and after 24 sec it returns a score of 7.1 at ply 13. However, after 134 sec crafty fails high at ply 16 with Ke6! At ply 19 the score is 16.6 and at ply 20 crafty fails high again. IMHO Ke6! is even easier to see from a human perspective. Kind regards B. Bauer sc > >>Seems correct. 44.h4 h5 45.f6! +- or after 44...h6 white can play 45.Kd6 because >>the stalemate doesn't work, black will come into Zugzwang because white has the >>move h4-h5. So 44...h5 is forced. >>I also found it at this moment with Genius6, took him some seconds to find it on >>P2-350. Also WChess2000 gets it quickly. Zarkov5 doesn't up to 6 min... >>White was MChessPro8 and black pieces were WChess2000. >> >>I admit I was close to interrupt the game and take 1-0 as result when I saw an >>eval of +7.xx. Now I am a bit more careful. :-) >> >>Thanks for the answer. > >The march of the white king to the kingside, then the march back to >pick up the queenside pawn takes a few plys, and just seems to make it by one >tempo. > >44. h4 h5 45. f6 gxf6+ 46. Kxf6 Kd5 47. Kg5 Ke5 48. Kxh5 Kf5 >49. Kh6 Kf6 50. h5 Kf7 51. Kg5 Kg7 52. Kf5 Kh6 53. Ke6 Kxh5 54. Kd6 Kg6 >55. Kc7 Kf6 56. Kb7 Ke7 57. Kxa7 Kd7 (just misses the the c8 square) 1-0. > > Is this just sheer calculating power or can knowledge intervene >to assist? This one for humans is friendly as it is just a straight forward >series of moves - a sort of "toes and fingers" counting exercise.
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