Capture / Material Decision
Can you find it?
Find 43. Qxc4. What is the idea?
Drag the move on the board, or type the move if you already see it.
Need a hint?
The answer is a capture / material decision idea. Start by checking forcing moves.
Solution: Qxc4 — Qxc4 is a forcing move. It keeps initiative by using capture / material decision pressure, so the defender has to respond before solving the larger king-safety problem.