Alois Nichtawitz, Schach Aktiv 2011
Position: 4R3/2bp1nN1/1r1k1Pp1/1P6/2pP4/N4BK1/b5P1/2r5 w - - 0 1
 
mate in 4

Black: Bc7, d7, Nf7, Rb6, Kd6, g6, c4, Ba2, Rc1
White: Re8, Ng7, f6, b5, d4, Na3, Bf3, Kg3, g2
Solution: 
Click to see solution below