[FEN "4Q/4p1bk/1p1qp2p/p1p1n2B/4P/2P3B1/PP4P/6K b - - 0 1"] 1. Nf3
Side Note: The answer is of no importance here, so no spoilers from me. :)
The puzzle is tagged with avoiding-perpetual, yet I cannot see the perpetual check here. It has been discussed in the comments under the puzzle:
- Why not just gxf3 and after Qxg3+, run away with the king to the left board edge and hide between pawns?
- Because he can’t hide. When the king reaches c2, the black queen attacks from e2. When the king is on b3, the queen moves to b5, and perpetual.
However, I do not think this is quite right. b5 is protected by the White queen. So, where and how is perpetual reached on this board? I would appreciate a hint instead of the full solution. :)