agb2002: Black has an extra pawn.
The pawn on e2 protects the white bishop. This suggests 33... Rxe2 34.Bxe2 (34.Bxg4 Qxf2+ 35.Kh1(3) Qh2#) 34... Bxe2:
A) 35.Rb8 Bf3+
A.1) 36.Kf1 Qh3+ 37.Ke1 (37.Kg1 Qh1#) 37... Rxb8 38.Rxb8+ Kh7
A.1.a) 39.Qc1 Qe2+ 40.Kg1 Qe5
A.1.a.i) 41.Qf4 Qe1+ 42.Kh2 Qh1#.
A.1.a.ii) 41.Qb1 Qh5 and mate soon.
A.1.a.iii) 41.Rb5 Qh5 and mate soon.
A.1.a.iv) 41.Kf1 Qxb8 wins decisive material.
A.1.b) 39.Rb1 Qh3+ 40.Ke1 Qh1+ 41.Kd2 Qxb1 wins.
A.1.c) 39.Qb2 Qh3+ 40.Ke1 Qh1+ 41.Kd2 Qd1#.
A.2) 36.Kg1 Qh3 37.Rxc8+ Kh7 38.Rh8+ Kxh8 39.Rb8+ (39.Qa8+ Bxa8 and White's f-pawn avoids the stalemate) 39... Kh7 40.Rh8+ Kxh8 wins.
A.3) 36.Kh2 Qh4+ 37.Kg1 Qh1#.
B) 35.Rh1 Bf3+ 36.Kg1 Bxh1 37.Kxh1 Re8, with many threats Re1+, Re2, Qxf2, Qf3+ followed by Re5, looks winning.
C) 35.Rg1 Bf3+ 36.Kf1 Re8 37.g4 Be2+ 38.Ke1 (38.Kg2 Qxg4+ 39.Kh2 Qh4+ 40.Kg2 Re6 wins) 38... Bxg4+ 39.Kf1 (39.Kd2 Qxf2+ wins) 39... Bh3+ 40.Rg2 Qh3 wins.
D) 35.Rf1 Bf3+ 36.Kg1 Qh3 wins.
E) 35.Re1 Bf3+ and mate in three.