LeSwamp: A) 9.Bxe4?! There is no reason to get rid of this excellent bishop! 9.Re1 ; 9.cxd5 cxd5 10.Nc3 (10.Re1!?) Nxc3 (10...Re8 11.Re1 Nxc3! 12.Rxe8+ (12.bxc3 ) Qxe8 13.bxc3 ) 11.bxc3 ; 9.Qb3!?=/
B) 10...Bf5!? Why not 10...f5! 11.Nc3 Be7 with idea Be6=
C) 12.Re1. Better is 12.Ncxe4 Bxe4 (12...Bxh2+ 13.Kxh2! Bxe4 14.Nxe4 Qh4+ transposes) 13.Nxe4 Bxh2+! 14.Kxh2! Qh4+ 15.Kg1 Qxe4 16.Bg5 =/ ; 12.Ncxe4 Bxh2+ or 12...Bxe4 would transpose into 12.Ncxe4 ; 12.g4!? Bg6! 13.Nxe4= or 13.Ngxe4=
D) 12...Re8?! 13.c5! Capablanca's turn to go wrong! 12...Nf6! 13.Ngxe4 (13.Ncxe4 Nxe4 14.Nxe4 would transpose) Nxe4! 14.Nxe4 Bxh2+! 15.Kxh2 Qh4+ 16.Kg1 Bxe4 =
E) 15...Re6?! 16.Bg5! White clear advantage. Again, Capablanca follows a dubious path... 15...h6!
F) 18...b5!?/?!. Black had 18...b6 19.Bf4 Qb7 White clear advantage ; also 18...Qc8 White clear advantage.
G) 22...Qxb3? This time, it is a serious error which gives White a winning game. 22...Bxb3! 23.Qd2 (23.Qc3 Bd5 with idea Nf8 Clear advantage White ; 23.Qe2 a5 Clear advantage White) Bd5 with idea Nf8 Clear advantage White.
H) 24...Nb8. Better was 24...Nf8. The rook cannot take the pawn/c6 immediately, because of the fork by Bd5.
I) 25...Bc2?! Better was 25...Be6 .
J) 27.Bd8? There were 27.Be3 with idea b2-b4, winning ; 27.Bf4 Nd7 28.b4 winning also.
K) 28.Bb6!?/?! Spectacular, but not the best. Better were : 28.Be7 a5 29.b4! a4 30.b5! cxb5 31.Nxb5 (only move) Bb3 32.c6 Nb6! 33.c7 ; or 28.d5 cxd5 29.c6 Rxd8 30.Nb7! d4 (30...Nb6 31.Nxd8 d4 transposes) 31.Nxd8 Nb6 32.Kf1 with Corzo winning.
L) 29.b4?! Slowly, Corzo is spending his advantage. 29.Nc4 with idea of Bc7 followed by Nb6 or Nd6, or even Ne5 if the black knight goes away ; 29.f3 Nf6! 30.Kf2 with idea Ke1, Kd2 - huge advantage White ; 29.Bc7 Nf6 (29...h5 30.f3 huge advantage White) 30.Nc4! huge advantage White.
M) 29...g6??. Almost incredible. Just as Capablanca was heading towards a saved game, boom! The blunder! As Calli pointed out above : 29...Nf6! with idea Nd5. Black would still be in the cables, but nothing is lost.
N) 30.f3 . Missing 30.d5! cxd5 31.b5! a5 32.Bc7 a4 33.c6! Ne5 34.f4! Nxc6 35.bxc6 with Corzo winning.
O) 31.Nc4?? Gives up the win. Now we are slowly heading towards a drawn game. As Who indicated : Corzo would get the win by 31.b5! cxb5 32.Nxb5 (only move)