A rather passive position from a casual game. Black should have probably tried to hold out for a draw.

or try to push with b5....

mariop wrote: or try to push with b5....

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...and lose the b-pawn to black's restricting pawn on a6.

i would have played b5 as well

How does that win a pawn?

don't know.    how does h3 win a pawn?  because i don't see it.

the only way i see it is that the bishop is forced to take the knight because its only two retreat squares are no good due to g4 or e4 so it would go 1Bf3 2Bf3 then blacks move doesnt matter which is followed by 2Bc6 c6 3Qc6.  Unless black moves the knight then Bb7

1.     h3     Bxf3

2.     Bxf3

The knight is attacked three times, but only defended twice. It is also pinned to the pawns on b7 and c7.

If black does nothing on the queenside, then white plays Bxc6 and wins the b-pawn.

If black moves the knight to d8 to defend b7, then the c-pawn falls.

If Ne7, then black loses both pawns - Bxb7 followed by Qxc7.

lol, but if black respond with Bh5, we would win a bishop instead of a pawn - evidently failing the puzzle. =)

Nimzo33 wrote: lol, but if black respond with Bh5, we would win a bishop instead of a pawn - evidently failing the puzzle. =)

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 With a bishop more, we may achieve to win a pawn (or more) ^^

I think Bf5 and Bh5 can be ruled out as possible responses by black, as they are pretty obvious mistakes.

matthiassmall wrote: I think Bf5 and Bh5 can be ruled out as possible responses by black, as they are pretty obvious mistakes.

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 *cough* I'm joking *cough*

... you may also have a small case of bronchitis