! Seeing as the bishop is pinned to the king, he must defend it. The knight move was the best way to do this as he has also released his rook in the process.
22... Nc6d4
! When you are winning materially, it is a goof idea to trade pieces. This move forks the king and bishop.
23. Kc2d3 Nd4xe2 24. Nc3xe2 Rh8d8
Bringing the last rook and checking the king.
25. Kd3e3 Nf6g4 26. Ke3f3 Rg2xh2
!! If he takes my knight, he leaves his knight unprotected.
27. Ne2f4 Ng4e5 28. Kf3e4 Ne5g6
! Setting a trap. If he takes the e6 pawn, I will simply pin the knight to the king with Re8.
29. Nf4xg6
? He shouldn't be trying to trade off pieces here; he's just losing material that could be used to stall the inevitable.
29... hxg6 30. a3 Rd8d2
2 rooks on the 2nd or 7th ranks are devastating.
31. Ra1e1 Rd2e2
!! Forking his king a last remaining piece. He resigned here.
