should't black have traded bishops instead of taking the knight? i would have led to a two knights vs pawnless king, not enought material to mate...

Good puzzle. Very educational. Especially one of the last positions, where the bishop must capture the knight. Never knew that a mate with two knights could look like that!

very tricky..good ..

Ok.

Way over my head too.

Annoying

if i was black i would get a queen not a stupid knight

Nb3 and Kb4 end up quite similar in the end, but Kb4 is probably a better defensive move, as it makes white work a bit harder for the win.

nice

need lot of thoughts. nice one

great puzzle.

ya if they take the bishop its a draw!!!!!!these puzzles do have their drawbacks

I did it well until the 4th move, then I got a little bit lost and haven't been able to see Nb6 (2 knights vs king is usually a draw, at least 99% of the cases and that confused me).

Very nice. 

Time to post what I think of the variations of this puzzle. Correct me if I'm wrong. :)

In all, fantastic daily puzzle :) Didn't get it all right the first time though.

good puzzle

Nice not so short puzzle. I like promotion into knight, makes it more interesting. :)

nice

This is my analysis with stockfish. Black can escape early checkmate but white is far better :