Leads to 15...3544 16.4264 3832 17.5241 8462 18.7183 6253 19.3153 4453 20.6453 5878 21.5344 4837 22.8364 6838 23.6143 7643 24.6443, which wins a bishop and a pawn for two bishops and two pawns. Better is 5241, leading to 15...3544 16.6143 2647 17.6364 7643 18.3243 8457 19.3122 4826 20.7163 5878 21.6344, which wins a bishop and a pawn for a bishop and a pawn.
15... cxd4 16. Qd2xd4 Rc8xc2
! Checks White's king and creates a passed pawn on d5. Black wins two pawns for a pawn. Black is up two pawns in material.
17. Ke2d1 Bh4f2
Moves it out of immediate danger and threatens White's queen.
18. Bc1e3
My Chessmaster says this was Whites Key mistake. I'm not so sure. Uh-oh! Leads to 18...6253 19.4453 4544 20.6125 5868 21.5331 3231 22.1131 4875 23.2561 7555 24.2324 5553 25.6152 7643 26.5243 5343 27.4151, which wins a rook and two bishops for a queen, two bishops, and two pawns. Much better is 4424, leading to 18...6235 19.6125 2647 20.2414 1716 21.2547 4847 22.1447 5847 23.7152 8838 24.3142 7643 25.5264 3544 26.6443 4411 27.8187, which wins a queen, a bishop, a knight, and a pawn for a queen, a rook, and a bishop. This was white's key blunder. White was never able to recover and eventually resigned.
18... Bf2xe3 19. Qd4xe3 d4 20. Qe3f4
?? THIS! is Whites key mistake move. I never would of done it my self however after looking at the game the only move here is Bb5+, kf8 then Qc1. and exchange the Queen for a Rook. Uh-oh! Leads to 20...2645 21.6442 4533 22.4151 3242 23.5142 4875 24.4251 7573 25.5142 7355 26.6152 5553 27.4251 7643 28.5161 3352 29.1141 5271 30.4143 5343 31.6171 4321 32.7172 2112 33.7273 1223, which wins a rook, a bishop, and a knight for a queen, a rook, a bishop, a knight, and three pawns. Much better is 5331, leading to 20...3231 21.1131 4875 22.6183 5878 23.6364 7573 24.7152 7363 25.4142 4443 26.5233 6364 27.4241 6455, which wins a rook for a queen and three pawns.
20... Nb6d5 21. Qf4g4
White moves into a forced mate. Much better is 6442. 6474 leads to 21...4553 22.4151 4815 23.2324 1524 and mate.
21... Nd5e3
!! Black tightens the noose with mate in 2. Removes the threat on Black's pawn at d4 and triple-forks White's king, White's queen, and White's bishop. Leads to 22.4151 4815 23.2324 1524 and checkmate. White resigns.
