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the official solution 21.f6 is a good move but an even better one is 21.Ne6+,Kf8 22.Ba4+,Rc6 23.f6 winning according to Stockfish 10. The 21.Ne6+ is wrongly considered as a mistake.

I dwelled a little deeper into this issue. It seems that the problem does not stem from js version but from Stockfish version 10 itself. For example, in this position (7k/p2qQ1p1/P1pP1r1p/1p3p2/4p3/2P…

maybe the clearest example is 36.d6 which is best by Stockfish-10 but the scor drops from 6.3 to 4.0

Sorry for not getting a clear example. Here is a clear one (https://lichess.org/3FuxKxSV#82). 42.hxg6 the score drops from 13 to 9.7 even though this is the best move by Stockfish 10 on my computer. T…

There seems to be a severe bug in version 10: the scores of the computer analysis of a game change rapidly when moving 1 ply ahead having nothing with mistakes. This creates a visual image of a jigsaw…

the third White move in the solution is BxQ, however, checking first is even better (3.Qd8+ ... 4.BxQ). Unfortunattly, this move is regarded as a mistake.

Letting making one mistake go unpunished, or droping some point but not all of them would be a great improvment

Hi, Though the mechanism for problems creation seems ingénues (bravo!) it can be quite frustrating: a) It is not rare to find puzzles with several good moves. This makes it hard to solve the problem a…

I just played a game and while waiting to my opponent resposnse suddenly my move was taken back and a message "White left the game, Black is victorious". Since I was White and I was waiting to my oppo…