Gerald Sladek, Schach-Echo 1957
Position: 1B6/8/2R5/1K6/8/1p6/kn6/7R w - - 0 1
 
mate in 4

Black: b3, Ka2, Nb2
White: Bb8, Rc6, Kb5, Rh1
Solution: 
Click to see solution below