Werner Schmoll, Die Schwalbe 2022 (Hilfsmatt in 3 Zügen, 3 Lösungen)
Position: RN4K1/P3p3/2b1k3/8/8/8/8/8 w - - 0 1
 
mate in 3

Black: e7, Bc6, Ke6
White: Ra8, Nb8, Kg8, a7
Solution: 
Click to see solution below