Fun to solve. The three mating positions are obvious, and the challenge is to ensure that the black grasshopper used as a hurdle for the mate must be either obstructed or have no hurdle to leap over.
Definitions
Grasshopper: Moves in queen directions, but the penultimate square must be occupied by a piece (the "hurdle") which can be of either colour and is unaffected by the move.
Fun to solve. The three mating positions are obvious, and the challenge is to ensure that the black grasshopper used as a hurdle for the mate must be either obstructed or have no hurdle to leap over.
Definitions
Grasshopper: Moves in queen directions, but the penultimate square must be occupied by a piece (the "hurdle") which can be of either colour and is unaffected by the move.