> Can White win?
It's a draw if you remove b7 and a4 so I guess not.
I wonder if you have found a possible drawing variation for Black in one of the main lines????
> This looks like more analysis from the Botvinnik-Bronstein game
Yes, that's correct :) I decided to do some additional analysis of 55...N8e7 56.Bg5 Ke6 and then I ran into this endgame again.
> I wonder if you have found a possible drawing variation for Black in one of the main lines????
I'm not sure what you mean by the main lines, but I will probably have a closer look at the above variation and perhaps 55...Kf5 too, although 56.Bh2 seems strong.
Maybe I'm missing some subtlety, but this
is a tablebase draw - so I find it very hard to believe that your position is not drawn, too.
Monte Carlo gives a result of 85% draws in default settings and after 1000 games
The contrary happens with the bishop pair, only Lolli's fortress draws
> The contrary happens with the bishop pair, only Lolli's fortress draws
There are similar fortresses that can push the win past 50 moves in some cases.
Bishop + knight also loses with the exception of Bb7+Nd5 and mirrors. I don't know if there's another fortress that even comes close.
Yes too according to theory, Bb7+Nd5 and mirrors are the exceptions, B+N are lost in the rest of the cases
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