Queen against bishop is won for the side with the queen (the tablebases confirm it). Black, who has the queen against White's bishop, is to move here. The queen is far stronger than a minor piece: she threatens mate and attacks the bishop at the same time.
White has the king on g5 and the bishop on d6; Black has the king on c2 and the queen on a1. The plan is simple: drive the enemy king to the edge, separate king and bishop, then win the bishop with an attack or deliver mate. Without the king's support the bishop cannot hold out for long.
The main thing for the stronger side is to be accurate and not walk into perpetual check or stalemate. Technically an easy ending, but a useful one for grasping how far a queen outguns a minor piece.
Drag a piece onto the board, or click a piece and then click the squares. The cross beside the pieces sweeps every piece of that colour off the board, and a single piece can be dragged off the edge.
The pieces will be arranged into the chosen pattern.
It is the mating side to move. Find mate in one.
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