Mate in 1 Black to move
Pawn G4
The problem with this puzzle is, there are no coordinates. The composers probably missed that, if Black's pawns are going up, 1...a1R# and 1...a1Q# are both checkmate. Do you see it? If it were the other way around, 1...g4# would be the only checkmate.
But alas, there are no coordinates, so all 3 answers above can be valid!
Pawn G4
The problem with this puzzle is, there are no coordinates. The composers probably missed that, if Black's pawns are going up, 1...a1R# and 1...a1Q# are both checkmate. Do you see it? If it were the other way around, 1...g4# would be the only checkmate.
But alas, there are no coordinates, so all 3 answers above can be valid!
All these are correct but if the black pawns are going down, then it would be G4