I hope this post-game continuation I’ve constructed here is enough to make Siegbert Tarrasch cry in his grave. For those who don’t know what I’m talking about, watch the following video:
So here is the following potential continuation after 31. … a5!!:
32. Nb3 a3xb2+!! 33. Qxb2 Ra8+!! 34. Na5 Rxa5+!! 35. Kb1 Qd3+!! 36. Qc2 Rb8+!! 37. Kc1 Ra1+!! 38. Qb1 (it is possible at this point to capture the queen with one of the rooks and mate the opponent but this is going to be a sadistic mate so we’re going to forego that option) Qf1+! 39. Kd2 Qf2+! 40. Kd3 Ra3! 41. Ke4 Qxe3+! 42. Kf5 Rf8+!! (gotta watch for our own king’s safety!) 43. Kg5 Qxf4+! 44. Kh4 g5+!! 45. Kh5 Rh3#!!
Okay…that should be sadistic enough.