[FEN "r4rk1/3q1ppp/n4n2/pp1N4/2pP4/P1N1PQ2/1P3PPP/R3R1K1 b -"]

15... Nxd5 16. Qxd5


w b wb bw | w b wb bw

b     an
    


15...Nxd5      an
    


16. Qxd5      an