Sting SF 9.6

[lech]

Hi Marek, thanks for this new version

Chinese Wall from Otto Blathy, "Chess Amateur", 1921
This problem seems to be impossible for computer !

[d]4k3/6p1/8/3p3b/p1pPp1pP/BpP1PpP1/1P3P1R/K2N3N w - - 0 0[/d]

explanation for position
https://www.youtube.com/watch?v=ZEq_X-yE9nU

I took a look at the position and I think a next version of Sting can be much closer to solve this very complex problem (similar to "The horse Trojan").

[Dann Corbit]

Hi Marek, thanks for this new version

Chinese Wall from Otto Blathy, "Chess Amateur", 1921
This problem seems to be impossible for computer !

[d]4k3/6p1/8/3p3b/p1pPp1pP/BpP1PpP1/1P3P1R/K2N3N w - - 0 0[/d]

explanation for position
https://www.youtube.com/watch?v=ZEq_X-yE9nU

I took a look at the position and I think a next version of Sting can be much closer to solve this very complex problem (similar to "The horse Trojan").

See my post:
http://rybkaforum.net/cgi-bin/rybkaforu ... ?tid=32459

[lech]

Hi Marek, thanks for this new version

Chinese Wall from Otto Blathy, "Chess Amateur", 1921
This problem seems to be impossible for computer !

[d]4k3/6p1/8/3p3b/p1pPp1pP/BpP1PpP1/1P3P1R/K2N3N w - - 0 0[/d]

explanation for position
https://www.youtube.com/watch?v=ZEq_X-yE9nU]

I took a look at the position and I think a next version of Sting can be much closer to solve this very complex problem (similar to "The horse Trojan").

See my post:
http://rybkaforum.net/cgi-bin/rybkaforu ... ?tid=32459

Thanks Dann, the followig positions:
[d]8/3k4/8/2Bp2pb/p1pPp1p1/1pP1PpP1/1PRK1P2/3N3N w - - 0 1
seems to be impossible to win after 1. Kc1 bxc2!

[fishpov]

Hi Dan and Marek
I thing you're right

1. Kc1 bxc2 2. Kxc2 Kc6 3. b4 axb3+ 4. Kb2 Kb5 5. Ka3 Be8 6. Nb2 Bc6 7. Na4 Ka6 8. Nb6 Kb7 and black can prevent white knight breakthrough