[FEN "r4rk1/p4ppp/2p2q2/8/2P1p1b1/4P1P1/PP2P2P/R2QKB1R w KQ"]

13. Qd4 Qe7


w b wb bw | w b wb bw

w     an
    


13. Qd4      an
    


13...Qe7      an