The solution to last Monday’s problem is that White can punish Black’s greed by playing 1. Qc1 and the Black Queen is trapped. 1.. Qa5 is met by 2. Bb5+.
This week’s problem shows the pitfalls of making automatic replies.
White sees that his Queen is attacked and that the Black Pawn on b6 is en prise, and so automatically plays 1. Qxb6 after a few seconds thought. Black castled and White did not have a big edge.
What had White missed? How can he get a big advantage by keeping the Black King in the centre of the board where it can be attacked?