Author: Steffen Jakob
Date: 19:15:46 02/05/01
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Hi Paul! >>>4k3/8/1p1p4/pPpPp1p1/P1P1PpPp/5P1P/2BB4/K7 w - - id White Wins; bm Bxf4 >> >>I don't see the win after Bxf4 gxf4. Therefore Bxf4 isn't better than other >>moves. > >You're absolutely right! Silly me ... and the funny thing is (I just looked this >up in the archives of CCC), it appears to be from message 47367 by ... Steffen >Jakob!! :) You said: > >"Is there a program which sees that white cannot break through blacks pawn wall >(with knowledge and not with depth)?" > >Sorry! Hehehe, you can even find this position on Hossa´s homepage (http://www.jakob.at/steffen/hossa.html)! [...] >>>8/8/8/1k3p2/p1p1pPp1/PpPpP1Pp/1P1P3P/QNK2NRR w - - id WW; bm Kd1 >> >>Same as in the first position: I dont see a win here. Black simply doesnt take a >>white piece. > >Hmmm, also looked this one up ... there is a very deep win here, goes something >like this: > >1. Kd1 Kb6 2. Rg2 Kc6 3. Re2 Kb6 4. Rg1 Kc6 5. Rgg2 Kb6 6. Ke1 Ka6 7. Kf2 >Kb6 8. Re1 Ka6 9. Rc1 Kb6 10. Ke1 Ka6 11. Re2 Kb6 12. Kd1 Ka6 13. Re1 Kb6 >14. Rc2 Ka6 15. Kc1 Kb6 16. Qa2 bxa2 17. b4 a1=Q 18. Rb2 Kb5 19. Rd1 Kb6 >20. b5 Kc7 21. b6 > >But it's just too deep I think, something to look at again in 5/10 years :) Wowwwww!!!!! That is incredible!!! Even the end position of your line isnt trivial. Black has to let run the passer on the b file because of Zugzwang. What a cool position! It rather reminds me on such small puzzles where you have to shift some squares to get a certain order instead of chess. :-) What is the source of this position? >>>8/3k3p/5p2/p1p1pPpP/PpPpP1P1/RP1P4/8/5K1R w - - id WW; bm h6 >> >>At least Hossa would play h6 here :-) >> >> depth value time nodes pv >> 1 +12.39 0.08 2 1.a3a2 >> <1> +12.39 0.08 16 1.a3a2 >> 2 +12.35 0.08 27 1.a3a2 d7c6 >> <2> +12.35 0.10 54 1.a3a2 d7c6 >> 3 +12.46 0.10 118 1.a3a2 d7c6 2.f1g2 >> <3> +12.46 0.10 309 1.a3a2 d7c6 2.f1g2 >> 4 +12.46 0.11 433 1.a3a2 d7c6 2.f1g2 c6d6 >> <4> +12.46 0.12 729 1.a3a2 d7c6 2.f1g2 c6d6 >> 5 +12.52 0.15 1319 1.a3a2 d7c6 2.f1g2 c6d6 3.g2f3 >> <5> +12.52 0.22 3218 1.a3a2 d7c6 2.f1g2 c6d6 3.g2f3 >> 6 +12.52 0.23 4097 1.a3a2 d7c6 2.f1g2 c6d6 3.g2f3 d6c6 >> <6> +12.52 0.28 6680 1.a3a2 d7c6 2.f1g2 c6d6 3.g2f3 d6c6 >> 7 +12.52 0.39 11592 1.a3a2 d7c6 2.f1g2 c6d6 3.g2f3 d6c6 >> 4.h6 >> <7> +12.52 0.61 21864 1.a3a2 d7c6 2.f1g2 c6d6 3.g2f3 d6c6 >> 4.h6 >>? 8 +7.36 1.26 70387 1.a3a2 h6 2.h1h2 d7c6 3.a2a3 b4xa3 >> 4.h2a2 c6d6 5.a2xa3 >>? 9/8 +7.39 1.67 100125 1.h6 b4xa3 2.f1g2 d7c6 3.h1a1 c6d6 >> 4.a1xa3 d6c6 >>? <8> +7.39 1.69 101058 1.h6 b4xa3 2.f1g2 d7c6 3.h1a1 c6d6 >> 4.a1xa3 d6c6 > >This last one is the real test of course, and you solve it ... impressive! Thank you, but please dont forget that Hossa can only solve them with experimental code which would prob. brake a lot of things if Hossa would use it in normal play. Best wishes, Steffen.
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