Daily chess puzzle

Today’s problem is blogged live whilst watching the semi-finals of the Riga Grand Prix. Whilst written live, it is posted with a delay, since I write my posts sometime in advance.

As has been my custom on this blog for a while, I adopt the style of only saying which side is to play: and not giving an idea if the move wins or otherwise, unless on occasion I think signposting would be helpful. Instead, the problems are posed with the instruction to decide what you would play, as in a game.

White to play: can White win the b pawn?

So v Mamedyarov, 19/7/19, Riga

Solution

No, he can’t. It took me a few moments to see why. After 13 ab Nd4 14 Bd4 ab 15 Bb5?? would be a losing blunder: 15…Qd5 would be a double attack on the LPDO Bb5 and the Pg2. The bishop would be lost.