Richard Funiok (1909) - GM N. Matinian (2470) Gran Canaria Online Blitz lichess.org INT (3), 2021.02.16
Richard Funiok (1909) - GM N. Matinian (2470) Gran Canaria Online Blitz lichess.org INT (3), 2021.02.16
This is a Chess 960 position. Click your king to see which rooks can castle. Drop the king on the rook to castle.
In opera mate, a rook checkmates the king. The rook is next to the king, but can't be captured, because it is protected by a bishop (or a queen on the diagonal), which also prevents the escape.