Can You Find The Winning Path?

How quickly can you find the winning path without resorting to the Nalimov Tablebase?

I don't expect a full solution to this puzzle since the key juncture in the solution leads to what I consider an inhuman ending, but see how far you can get before consulting the Nalimov Tablebase to determine whether or not you have a winning position for white.

k2N4/8/K2P4/8/8/2n5/2b5/8 w - - 0 1

No. 1-5
Yancey_Ward

Editor

What eventually happens in most of the winning lines is that white uses mate threats against the cornered black king to force black's knight to the edge of the board where the white bishop and the king trap him leading to the standard bishop and knight ending.

Yancey_Ward

Editor

That's not bad Alena. When I was looking at this puzzle last week, I got a bit further than you before throwing in the towel after about an hour realizing that the position was likely won, but I would never be able to work it out conclusively. When I put the position into the Nalimov after move 8, I realized right then that the point of the puzzle wasn't to find a final solution to mate (it was like white to mate in 84 moves or something like that), but to find the position after the under-promotion to bishop. I actually did study some of the line in the Nalimov Tablebase, but I couldn't really understand the winning plan even in a superficial way.

DaveCubby

Exactly, Susan!! Truly insane!!! We humans are trying to solve it till hell freezes over!! LOL LOL

SusanPolgar

Editor

Don't worry, most humans can never solve this :)

Alena

1.d7 Nd5
2.Ne6 Nb4+
3.Kb6 Nc6
4.Nd4 Bf5
5.Nxf5 Nb8
6.d8=B Nd7+

The only winning move is promotion to the bishop because I can't mate with the help of my two knights.
And I don't know what to do next. I can't understand where to move my king.

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