[FEN "7r/R4ppk/2p3p1/Q2p4/1P2n3/1K2PP1P/6P1/q7 b -"]

35... Qb1+ 36. Ka3 Qc1+ 37. Ka4 Qc2+ 38. Ka3 Nd2 39. b5 Qb3#


w b wb bw | w b wb bw

b     an



35...Qb1+      an



36. Ka3      an



36...Qc1+      an



37. Ka4      an



37...Qc2+      an



38. Ka3      an



38...Nd2      an



39. b5      an



39...Qb3#      an