[Event "Chessmaster: Grandmaster Edition Rated Game"]
[Site ""]
[Date "2021.3.23"]
[Round ""]
[White "Duke"]
[Black "Ricardo"]
[TimeControl "900+3"]
[Result "0-1"]
[ECO " "]
1.d4 d5 2.Nf3 Nf6 3.c4 e6 4.e3 Nc6 5.Ne5 Bb4+ 6.Ke2 dxc4 7.Qa4 O-O 8.Nxc6 bxc6 9.Qxb4 Ba6 10.Qxf8+ Qxf8 11.Nc3 Qd8 12.Ke1 c5
13.Rb1 cxd4 14.Ne4 Nxe4 15.Be2 dxe3 16.Bxe3 Qd7 17.Rd1 Qa4 18.b3 Qxa2 19.Rd5 exd5 20.Bxc4 dxc4 21.Rg1 Rd8 22.b4 Qb1+ 23.Ke2 Qxg1
24.Kf3 Qxh2 25.g3 Bb7 26.Bd4 Nxf2+ 27.Ke3 Qxg3+ 28.Kd2 Qd3+ 29.Kc1 Qxd4 30.Kb1 Qd2 31.b5 Re8 32.b6 Re1# 0-1
[Event "Chessmaster: Grandmaster Edition Rated Game"]
[Site ""]
[Date "3-23-2021"]
[Round ""]
[White "Duke"]
[Black "Ricardo"]
[Result "0-1"]
[ECO "c) U"]
1. d4 ... ;Book.
... d5 ;Book.
2. Nf3 ... ;Book.
... Nf6 ;Book.
3. c4 ... ;Book.
... e6 ;Book.
4. e3 ... ;Score: 0.10 4...c5 5.Bd3 Be7 6.O-O O-O
;7.cxd5 exd5 8.dxc5 Bxc5 9.Qc2 Nbd7
;10.Nc3 (Time = 0:26, Depth = 1/11)
... Nc6 ;Score: 0.26 5.Nc3 Be7 6.Bd3 O-O 7.O-O
;b6 8.a3 Ba6 9.cxd5 Bxd3 10.Qxd3 Nxd5
;11.Bd2 Nxc3 12.Qxc3 (Time = 0:22, Depth
;= 2/12)
5. Ne5 ... ;Score: -0.07 5...Nxe5 6.dxe5 Ne4 7.Nd2
;Nc5 8.Be2 Be7 9.O-O O-O 10.b3 dxc4
;11.Bxc4 (Time = 0:15, Depth = 1/11)
... Bb4+ ;Score: 0.13 6.Bd2 Be7 7.Nc3 O-O 8.Be2
;Nxe5 9.dxe5 Ne4 10.Nxe4 dxe4 11.Qc2 Bd7
;12.O-O Bc6 (Time = 0:12, Depth = 2/12)
6. Ke2 ... ;Score: -0.65 6...O-O 7.Nxc6 bxc6 8.a3
;Be7 9.Ke1 c5 10.Nc3 cxd4 11.exd4 Bb7
;12.b3 dxc4 13.bxc4 (Time = 0:16, Depth =
;1/11)
... dxc4 ;Score: -0.50 7.Nxc6 bxc6 8.a3 Be7 9.Ke1
;c5 10.Bxc4 O-O 11.Nc3 cxd4 12.exd4 Bb7
;13.f3 (Time = 0:21, Depth = 2/12)
7. Qa4 ... ;Score: -0.47 7...Rb8 8.Nxc6 bxc6 9.a3
;Be7 10.Ke1 O-O 11.Qxa7 Bb7 12.Nc3 c5
;13.dxc5 (Time = 0:13, Depth = 1/11)
... O-O ;Score: 2.63 8.Nxc6 Bd7 9.Nxd8 Bxa4
;10.Nxb7 Bb5 11.Nc3 Bc6 12.Nc5 Rfd8 13.f3
;Rab8 14.Ke1 (Time = 0:12, Depth = 2/13)
8. Nxc6 ... ;Score: 2.51 8...Qd7 9.Qxb4 Qxc6 10.Nd2
;b6 11.Qxc4 Qd7 12.Ke1 Bb7 13.f3 a6
;14.Qc3 Rad8 (Time = 0:26, Depth = 2/13)
... bxc6 ;Score: 3.02 9.Qxb4 Qd6 10.Qa5 Nd7
;11.Nd2 c5 12.Ke1 Ba6 13.Ne4 Qb6 14.Qa4
;(Time = 0:10, Depth = 1/11)
9. Qxb4 ... ;Score: 2.85 9...a5 10.Qa3 Re8 11.Ke1 e5
;12.dxe5 Rxe5 13.Nd2 Be6 14.Nxc4 Rb5
;15.Bd2 (Time = 0:16, Depth = 1/11)
... Ba6 ;Score: 3.23 10.Ke1 Rb8 11.Qa5 Rb6
;12.Nc3 Nd5 13.Na4 Rb5 14.Qd2 Rb8 15.Nc5
;Qc8 (Time = 0:21, Depth = 2/12)
10. Qxf8+ ... ;Score: -2.22 10...Qxf8 11.Ke1 c5
;12.dxc5 Qxc5 13.Nc3 Bb7 14.a3 Rd8 15.f3
;Nd5 16.Ne4 Qb6 17.Kf2 (Time = 0:10,
;Depth = 2/13)
... Qxf8 ;Score: -2.29 11.Nc3 c5 12.dxc5 Qxc5
;13.Ke1 Rd8 14.Be2 Nd5 15.Bd2 Nb4 16.Rd1
;Nd3+ 17.Kf1 Nxb2 18.Ne4 (Time = 0:28,
;Depth = 2/13)
11. Nc3 ... ;Score: -2.45 11...c5 12.dxc5 Qxc5
;13.Ke1 Rd8 14.a3 Bb7 15.f3 Nd5 16.Ne4
;Qb6 17.Kf2 f5 18.Ng3 (Time = 0:22, Depth
;= 2/13)
... Qd8 ;Score: -1.90 12.Ke1 Nd5 13.Bd2 Nb4
;14.Rc1 Rb8 15.h4 c5 16.dxc5 Nd3+ 17.Bxd3
;Qxd3 18.Nd1 (Time = 0:22, Depth = 2/12)
12. Ke1 ... ;Score: -1.93 12...Nd5 13.Bd2 Nb4 14.Rb1
;Nd3+ 15.Bxd3 cxd3 16.Kf1 Qg5 17.Ne4 Qd5
;18.Nc3 Qh5 19.Rc1 (Time = 0:23, Depth =
;2/12)
... c5 ;Score: -1.85 13.dxc5 Rb8 14.e4 Qe7
;15.Rb1 Qxc5 16.Be3 Qb4 17.a3 Qb7 18.f3
;e5 (Time = 0:10, Depth = 2/12)
13. Rb1 ... ;Score: -3.30 13...cxd4 14.exd4 Qxd4
;15.Be3 Qe5 16.Be2 Nd5 17.Nxd5 exd5
;18.Rd1 c5 19.h4 d4 20.Bf3 Re8 (Time =
;0:19, Depth = 2/13)
... cxd4 ;Score: -3.30 14.exd4 Qxd4 15.Be3 Qe5
;16.Be2 Nd5 17.Nxd5 exd5 18.Rd1 c5 19.h4
;d4 20.Bf3 Re8 (Time = 0:18, Depth =
;2/13)
14. Ne4 ... ;Score: -12.06 14...Nxe4 15.exd4 c5
;16.Bf4 Qa5+ 17.Ke2 cxd4 18.g4 d3+ 19.Kf3
;Bb7 20.Rc1 Nd2+ 21.Kg3 Bxh1 22.Bxd3 cxd3
;23.Rxh1 (Time = 0:30, Depth = 2/13)
... Nxe4 ;Score: -12.15 15.exd4 c5 16.Bd2 Nxd2
;17.Rd1 Nxf1 18.Rxf1 Qa5+ 19.Rd2 c3
;20.bxc3 Bxf1 21.Kxf1 Qxc3 (Time = 0:18,
;Depth = 2/12)
15. Be2 ... ;MATE IN 11. 15...d3 16.f3 d2+ 17.Bxd2
;Qxd2+ 18.Kf1 c3 19.Re1 c2 20.g3 Bxe2+
;21.Rxe2 c1=Q+ 22.Kg2 Qxe2+ 23.Kh3 Qxh1
;24.Kh4 Qexh2+ 25.Kg4 Qxg3# (Time = 0:02,
;Depth = 2/11)
... dxe3 ;Score: -8.91 16.Bxe3 c5 17.g3 Rb8
;18.Bf3 Nd2 19.Bxd2 Qd3 20.Rd1 Qxf3
;21.Rf1 Rxb2 (Time = 0:08, Depth = 2/12)
16. Bxe3 ... ;Score: -9.55 16...c5 17.Kf1 Nd2+
;18.Bxd2 Qxd2 19.Re1 Qxb2 20.g3 Qxa2
;21.Bf3 Rd8 22.Kg2 c3 23.h4 (Time = 0:22,
;Depth = 2/12)
... Qd7 ;Score: -7.46 17.f3 Nf6 18.Kf2 Nd5
;19.Bd4 Qd6 20.Rhd1 c5 21.Be3 Qc7 22.g3
;Nxe3 23.Kxe3 (Time = 0:20, Depth = 2/11)
17. Rd1 ... ;Score: -8.22 17...Qa4 18.f3 c3 19.fxe4
;Qxe4 20.Kf2 Bxe2 21.Kxe2 Qxg2+ 22.Bf2
;cxb2 23.Rhg1 Qxh2 24.Rg4 c5 (Time =
;0:15, Depth = 2/11)
... Qa4 ;Score: -8.22 18.f3 c3 19.fxe4 Qxe4
;20.Kf2 Bxe2 21.Kxe2 Qxg2+ 22.Bf2 cxb2
;23.Rhg1 Qxh2 24.Rg4 c5 (Time = 0:16,
;Depth = 1/10)
18. b3 ... ;Score: -13.45 18...cxb3 19.Bxa6 b2
;20.Bd3 Rd8 21.Ke2 Nc3+ 22.Kf3 Nxd1
;23.Bb1 Qc6+ 24.Kg3 Qc1 25.Bxc1 bxc1=Q
;(Time = 0:18, Depth = 2/11)
... Qxa2 ;Score: -10.91 19.bxc4 Nc3 20.Rd2 Qb1+
;21.Bd1 Bxc4 22.f3 Bb3 23.Bxa7 Nxd1
;24.Rg1 Nc3+ 25.Kf2 Qf5 (Time = 0:22,
;Depth = 2/12)
19. Rd5 ... ;MATE IN 7. 19...exd5 20.b4 Qb1+ 21.Bd1
;c3 22.b5 Bxb5 23.f3 Qd3 24.fxe4 Qxe3+
;25.Be2 Qxe2# (Time = 0:03, Depth = 1/10)
... exd5 ;MATE IN 9. 20.b4 Qb1+ 21.Bd1 c3 22.b5
;c2 23.Ke2 cxd1=Q+ 24.Rxd1 Nc3+ 25.Kf3
;Qe4+ 26.Kg3 Ne2+ 27.Kh3 Bc8+ 28.g4 Qxg4#
;(Time = 0:01, Depth = 1/7)
20. Bxc4 ... ;MATE IN 4. 20...Bxc4 21.bxc4 Nc3 22.Bd2
;Qb1+ 23.Bc1 Qxc1# (Time = 0:00, Depth =
;1/4)
... dxc4 ;MATE IN 3. 21.bxc4 Nc3 22.Bd2 Qb1+
;23.Bc1 Qxc1# (Time = 0:00, Depth = 1/3)
21. Rg1 ... ;MATE IN 3. 21...cxb3 22.Kd1 Qe2+ 23.Kc1
;Qc2# (Time = 0:00, Depth = 1/3)
... Rd8 ;MATE IN 3. 22.b4 Nc3 23.Bd2 Qxd2+
;24.Kf1 Qc1# (Time = 0:00, Depth = 1/3)
22. b4 ... ;MATE IN 3. 22...Nc3 23.Bd2 Qxd2+ 24.Kf1
;Qc1# (Time = 0:00, Depth = 1/3)
... Qb1+ ;MATE IN 6. 23.Ke2 Nc3+ 24.Kf3 Qe4+
;25.Kg3 Ne2+ 26.Kh3 Bc8+ 27.g4 Nxg1+
;28.Kg3 Qxg4# (Time = 0:00, Depth = 1/3)
23. Ke2 ... ;MATE IN 6. 23...Nc3+ 24.Kf3 Qe4+ 25.Kg3
;Ne2+ 26.Kh3 Bc8+ 27.g4 Nxg1+ 28.Kg3
;Qxg4# (Time = 0:00, Depth = 1/3)
... Qxg1 ;Score: -22.69 24.Kf3 Nd2+ 25.Kg3 Nf1+
;26.Kf3 Nxe3 27.fxe3 Qxh2 (Time = 0:00,
;Depth = 1/3)
24. Kf3 ... ;MATE IN 4. 24...Qd1+ 25.Kxe4 Qg4+ 26.f4
;Qxg2+ 27.Kf5 Rd5# (Time = 0:00, Depth =
;1/4)
... Qxh2 ;MATE IN 7. 25.b5 Qh5+ 26.g4 Qh1+ 27.Kf4
;g5+ 28.Ke5 Qa1+ 29.Kxe4 Bb7+ 30.Kf5 Rd5+
;31.Ke4 Rxb5# (Time = 0:00, Depth = 1/5)
25. g3 ... ;MATE IN 5. 25...Qh1+ 26.Kf4 Nc3 27.f3
;Qh6+ 28.Kf5 Bc8+ 29.Ke5 Qxe3# (Time =
;0:00, Depth = 1/4)
... Bb7 ;MATE IN 5. 26.Bd4 Rxd4 27.Kf4 Nxg3+
;28.Ke3 Rd3+ 29.Kf4 Qh4+ 30.Ke5 Qg5#
;(Time = 0:00, Depth = 1/3)
26. Bd4 ... ;MATE IN 4. 26...Nxf2+ 27.Ke2 Nd3+
;28.Bf2 Qxf2+ 29.Kd1 Bf3# (Time = 0:00,
;Depth = 1/3)
... Nxf2+ ;MATE IN 4. 27.Ke3 Ng4+ 28.Kf4 Rxd4+
;29.Kg5 Qh6+ 30.Kf5 g6# (Time = 0:00,
;Depth = 1/2)
27. Ke3 ... ;MATE IN 2. 27...Nh3 28.Bxa7 Qd2# (Time
;= 0:00, Depth = 1/3)
... Qxg3+ ;Score: -28.96 28.Kd2 Rxd4+ 29.Ke2 (Time
;= 0:00, Depth = 1/2)
28. Kd2 ... ;MATE IN 3. 28...Rxd4+ 29.Kc1 Rd1+
;30.Kc2 Qb3# (Time = 0:00, Depth = 1/3)
... Qd3+ ;Score: -28.87 29.Kc1 Qd1+ 30.Kb2 Rxd4
;(Time = 0:00, Depth = 1/2)
29. Kc1 ... ;MATE IN 3. 29...Be4 30.Kb2 Qc2+ 31.Ka1
;Qb1# (Time = 0:00, Depth = 1/3)
... Qxd4 ;Score: -29.18 30.Kb1 Qd1+ 31.Kb2 (Time
;= 0:00, Depth = 1/2)
30. Kb1 ... ;MATE IN 2. 30...Nd1 31.Ka2 Qb2# (Time =
;0:00, Depth = 1/3)
... Qd2 ;MATE IN 3. 31.b5 Be4+ 32.Ka1 Qc1+
;33.Ka2 Rd2# (Time = 0:00, Depth = 1/2)
31. b5 ... ;MATE IN 2. 31...Nd3 32.Ka1 Qb2# (Time =
;0:00, Depth = 1/2)
... Re8 ;MATE IN 1. 32.b6 Re1# (Time = 0:00,
;Depth = 1/2)
32. b6 ... ;MATE IN 1. 32...Re1# (Time = 0:00,
;Depth = 1/1)
... Re1#
0-1
[Event "Chessmaster: Grandmaster Edition Rated Game"]
[Site ""]
[Date "3-23-2021"]
[Round ""]
[White "Duke"]
[Black "Ricardo"]
[Result "0-1"]
[ECO "c) U"]
;Annotations by Chessmaster: Grandmaster Edition Auto-Annotator. 22 seconds
;per move.
;
; White Black
;Book Move 4 3
;Leave Book 0 1
;CMX Agrees 20 21
;CMX Disagrees 8 8
;Agreement Pct. 71% 72%
;Total Error 20.89 7.73
;Relevant Error 15.66 3.10
;Missed Mate 0 5
;Moved Into Mate 2 0
;
;
1. d4 ... ;A40 Queen's Pawn Opening. The Queen's
;Pawn opening move is somewhat slower
;than the popular e4, because White will
;not be able to castle for three more
;moves. Its advantage is that it gives
;White more control over tactical
;surprises and often provides more
;lasting initiative and pressure.
... d5 ;D00 Queen's Pawn Game 1.d4 d5. Black
;answers symmetrically, challenging the
;center directly.
2. Nf3 ... ;D02 Grunfeld Reversed. A solid opening
;move, delaying c2-c4 to avoid the
;Queen's Gambit.
... Nf6 ;D02 Grunfeld Reversed / Symmetrical
;Variation. This is one of those
;ultimately flexible positions where
;little is ruled out, and almost any
;Attack/Defense may be yet employed:
;Queen's Gambit, Colle System, Catalan
;System.
3. c4 ... ;D02 Grunfeld Reversed / Symmetrical
;Variation.
... e6 ;D02 Grunfeld Reversed / Symmetrical
;Variation.
4. e3 ... ;D30 Queen's Gambit / Declined.
... Nc6 ;Out of Opening Book. dxc4 would have
;been in the Queen's Gambit / Accepted /
;Classical (transposed) book opening.
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5. Ne5 ... ;Blocks Black's pawn at e6.
... Bb4+ ;Checks White's king and enables the
;short castle.
6. Ke2 ... ;Slightly better is Bd2.
... dxc4 ; Black wins a pawn. Black is ahead by a
;pawn in material.
7. Qa4 ... ;Pins Black's knight at c6.
... O-O ;Leads to 8.Nxc6 Bd7 9.Nxd8 Bxa4 10.Nxb7
;Bb5 11.Nc3 Bc6 12.Nc5 Rfd8 13.f3 Rab8
;14.Ke1, which wins a queen for a queen,
;a knight, and a pawn. Better is Rb8,
;leading to 8.Nxc6 bxc6 9.a3 Be7 10.Ke1
;O-O 11.Qxa7 Bb7 12.Nc3 c5 13.dxc5, which
;wins a knight for a knight and two
;pawns. This was black's only serious
;miscue, but black was able to stay close
;and eventually mated.
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8. Nxc6 ... ;Forks Black's queen and Black's bishop
;at b4 and blocks Black's pawn at c7.
... bxc6 ;Removes the threat on Black's queen.
9. Qxb4 ... ;Attacks Black's pawn at c4.
... Ba6 ;Removes the threat on Black's pawn at
;c4.
10. Qxf8+ ... ;Ouch! Leads to 10...Qxf8 11.Ke1 c5
;12.dxc5 Qxc5 13.Nc3 Bb7 14.a3 Rd8 15.f3
;Nd5 16.Ne4 Qb6 17.Kf2, which wins a rook
;and a pawn for a queen and a pawn. Much
;better is Ke1, leading to 10...Rb8
;11.Qa5 Rb6 12.Nc3 Nd5 13.Na4 Rb5 14.Qd2
;Rb8 15.Nc5 Qc8, which results in no
;captures.
... Qxf8 ;Removes the threat on Black's king.
;Black wins a queen and a knight for a
;rook, a bishop, and a knight.
11. Nc3 ... ;Blocks Black's pawn at c4.
... Qd8
12. Ke1 c5
13. Rb1 ... ;Leads to 13...cxd4 14.exd4 Qxd4 15.Be3
;Qe5 16.Be2 Nd5 17.Nxd5 exd5 18.Rd1 c5
;19.h4 d4 20.Bf3 Re8, which wins a knight
;and a pawn for a knight and two pawns.
;Better is dxc5, leading to 13...Rb8
;14.e4 Qe7 15.Rb1 Qxc5 16.Be3 Qb4 17.a3
;Qb7 18.f3 e5, which wins a pawn for a
;pawn.
... cxd4 ;Threatens White's knight.
14. Ne4 ... ;Yikes! Leads to 14...Nxe4 15.exd4 c5
;16.Bf4 Qa5+ 17.Ke2 cxd4 18.g4 d3+ 19.Kf3
;Bb7 20.Rc1 Nd2+ 21.Kg3 Bxh1 22.Bxd3 cxd3
;23.Rxh1, which wins a bishop and two
;pawns for a rook, a bishop, a knight,
;and a pawn. Much better is exd4, leading
;to 14...Qxd4 15.Be3 Qe5 16.Be2 Nd5
;17.Nxd5 exd5 18.Rd1 c5 19.h4 d4 20.Bf3
;Re8, which wins a knight and a pawn for
;a knight and a pawn. This was white's
;key error. White was not able to regain
;the lost ground and was eventually
;mated.
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... Nxe4 ;Blocks White's pawn at e3.
15. Be2 ... ;White steps into the forced mate. Much
;better is exd4. Be2 leads to 15...d3
;16.f3 d2+ 17.Bxd2 Qxd2+ 18.Kf1 c3 19.Re1
;c2 20.g3 Bxe2+ 21.Rxe2 c1=Q+ 22.Kg2
;Qxe2+ 23.Kh3 Qxh1 24.Kh4 Qexh2+ 25.Kg4
;Qxg3# and mate.
... dxe3 ;Black misses the chance for a forced
;mate. Much better is d3, leading to
;16.f3 d2+ 17.Bxd2 Qxd2+ 18.Kf1 c3 19.Re1
;c2 20.g3 Bxe2+ 21.Rxe2 c1=Q+ 22.Kg2
;Qxe2+ 23.Kh3 Qxh1 24.Kh4 Qexh2+ 25.Kg4
;Qxg3# and mate.
16. Bxe3 ... ; Black wins a knight and two pawns for a
;pawn.
... Qd7 ;Leads to 17.f3 Nf6 18.Kf2 Nd5 19.Bd4 Qd6
;20.Rhd1 c5 21.Be3 Qc7 22.g3 Nxe3
;23.Kxe3, which wins a bishop for a
;knight. Better is c5, leading to 17.Kf1
;Nd2+ 18.Bxd2 Qxd2 19.Re1 Qxb2 20.g3 Qxa2
;21.Bf3 Rd8 22.Kg2 c3 23.h4, which wins a
;bishop and two pawns for a knight.
17. Rd1 ... ;Slightly better is f3.
... Qa4 ;Moves it to safety, frees Black's pawn
;at c4 from the pin, and attacks White's
;pawn at a2.
18. b3 ... ;Danger! Leads to 18...cxb3 19.Bxa6 b2
;20.Bd3 Rd8 21.Ke2 Nc3+ 22.Kf3 Nxd1
;23.Bb1 Qc6+ 24.Kg3 Qc1 25.Bxc1 bxc1=Q.
;Much better is f3, leading to 18...c3
;19.fxe4 Qxe4 20.Kf2 Bxe2 21.Kxe2 Qxg2+
;22.Bf2 cxb2 23.Rhg1 Qxh2 24.Rg4 c5,
;which gains a rook and a knight and
;loses four pawns by comparison.
... Qxa2 ;Leads to 19.bxc4 Nc3 20.Rd2 Qb1+ 21.Bd1
;Bxc4 22.f3 Bb3 23.Bxa7 Nxd1 24.Rg1 Nc3+
;25.Kf2 Qf5. Better is cxb3, leading to
;19.Bxa6 b2 20.Bd3 Rd8 21.Ke2 Nc3+ 22.Kf3
;Nxd1 23.Bb1 Qc6+ 24.Kg3 Qc1 25.Bxc1
;bxc1=Q, which gains a rook and a pawn
;and loses a bishop and a pawn in
;comparison.
19. Rd5 ... ;White gives Black a forced mate
;opportunity. Much better is bxc4. Rd5
;leads to 19...exd5 20.b4 Qb1+ 21.Bd1 c3
;22.b5 Bxb5 23.f3 Qd3 24.fxe4 Qxe3+
;25.Be2 Qxe2# and checkmate.
... exd5 ;Black observes a mate in 6. Creates a
;passed pawn on d5. Leads to 20.b4 Qb1+
;21.Bd1 c3 22.b5 Bxb5 23.f3 Qd3 24.fxe4
;Qxe3+ 25.Be2 Qxe2# and mate.
20. Bxc4 ... ;Protects White's pawn at b3 and attacks
;Black's pawn at d5.
... dxc4 ;Black has a mate in 3. Threatens White's
;pawn at b3 with a double-attack and
;pushes the passed pawn. Leads to 21.bxc4
;Nc3 22.Bd2 Qb1+ 23.Bc1 Qxc1# and mate.
21. Rg1 Rd8 ;Black has a mate in 3. Takes control of
;the open file. Leads to 22.b4 Nc3 23.Bd2
;Qxd2+ 24.Kf1 Qc1# and mate.
22. b4 ... ;Moves it to safety.
... Qb1+ ;Black has a mate in 6. Skewers White's
;king, protects Black's pawn at a7, and
;forks White's pawn at b4 and White's
;king. Leads to 23.Ke2 Nc3+ 24.Kf3 Qe4+
;25.Kg3 Ne2+ 26.Kh3 Bc8+ 27.g4 Nxg1+
;28.Kg3 Qxg4# and checkmate.
23. Ke2 ... ;Moves it out of check and forks Black's
;pawn at a7 and Black's queen.
... Qxg1 ;Black doesn't see the win. Much better
;is Nc3+, leading to 24.Kf3 Qe4+ 25.Kg3
;Ne2+ 26.Kh3 Bc8+ 27.g4 Nxg1+ 28.Kg3
;Qxg4# and checkmate.
24. Kf3 ... ;Removes the threat on White's pawn at g2
;and attacks Black's knight.
... Qxh2 ;Black has a mate in 7. Leads to 25.b5
;Qh5+ 26.g4 Qh1+ 27.Kf4 g5+ 28.Ke5 Qa1+
;29.Kxe4 Bb7+ 30.Kf5 Rd5+ 31.Ke4 Rxb5#
;and checkmate.
25. g3 Bb7 ;Black has a mate in 5. Protects Black's
;knight. Leads to 26.Bd4 Rxd4 27.Kf4
;Nxg3+ 28.Ke3 Rd3+ 29.Kf4 Qh4+ 30.Ke5
;Qg5# and checkmate.
26. Bd4 Nxf2+ ;Black has a mate in 3. Removes the
;threat on Black's pawn at a7, checks
;White's king with a discovered check,
;and isolates White's pawn at g3. Leads
;to 27.Ke2 Nd3+ 28.Bf2 Qxf2+ 29.Kd1 Bf3#
;and checkmate.
27. Ke3 ... ;Moves it out of check, protects White's
;bishop, and attacks Black's pawn at a7.
... Qxg3+ ;Black misses the forced mate. Much
;better is Nh3, leading to 28.Bxa7 Qd2#
;and mate.
28. Kd2 ... ;Moves it out of check.
... Qd3+ ;Black misses the forced mate. Much
;better is Rxd4+, leading to 29.Kc1 Rd1+
;30.Kc2 Qb3# and checkmate.
29. Kc1 ... ;Moves it out of check and forks Black's
;knight and Black's pawn at a7.
... Qxd4 ;Black doesn't see the win. Much better
;is Be4, leading to 30.Kb2 Qc2+ 31.Ka1
;Qb1# and checkmate.
30. Kb1 Qd2 ;Black has a mate in 3. Attacks White's
;pawn. Leads to 31.b5 Be4+ 32.Ka1 Qc1+
;33.Ka2 Rd2# and checkmate.
31. b5 ... ;Moves it to safety.
... Re8 ;Black has a mate in 1. Threatens
;checkmate (rook to e1) and takes control
;of the open file. Leads to 32.b6 Re1#
;and checkmate.
32. b6 ... ;Forks Black's pawn at a7 and Black's
;pawn at c7.
... Re1# ;Checkmates White's king.
;³
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