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Otho Michaelis vs James A Leonard
New York (1860), New York, NY USA
Italian Game: Classical Variation. Greco Gambit (C53)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Apr-26-17
Premium Chessgames Member
  Gregor Samsa Mendel: Opposite-color bishop endings are supposedly drawish. Opposite-color bishop middlegames, not so much.
Apr-26-17
Premium Chessgames Member
  al wazir: White doesn't have to play 20. dxe5, but any other move loses sooner or later.

If 20. Kd2, then 20...Re4 21. Qxa7 (21. Rad1 Rxd4+ 22. Bxd4 Qxd4+ 23. Kc1 Bxd1 24. Rxd1 Qxd1+ 25. Qxd1 Rxd1+ 26. Kxd1 Kd7, with an easily won endgame) Rxd4+ 22. Bxd4 Qxd4+ 23. Kc2 Qd3+ 24. Kb2 Qe2+ 25. Ka3 (25. Kb1 Be4#) Rd3+ 26. Kb4 Qb2+ 27. Kxc4 Rc3+ 28. Kb4 Qb2+ 29. Ka5 Ra3#.

Apr-26-17  stacase: Both 19. ...Re5 and 20. ...Qd3 were the obvious moves. Applying <See a good move look for a better one.> didn't turn anything up. Rather easy for a Wednesday.
Apr-26-17
Premium Chessgames Member
  An Englishman: Good Evening: Puzzle not difficult. Trying to deduce the opening that led to the position--impossible. Guessed the Albin, which could not have been more incorrect.
Apr-26-17  Walter Glattke: 20.c6 bxc6 21.Qa6+ Kd7 22.Rc1 Rh5 23.Rxg7
Apr-26-17  Walter Glattke: 20.c6 Qxd4 also mating
Apr-26-17
Premium Chessgames Member
  patzer2: Here's my look at the Wednesday puzzle (19...?) and game with the opening explorer and Deep Fritz 15:

<1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4> The modern popular move is 5. d3 = to as in the drawn game Svidler vs Adams, 2017

<5... exd4 6. e5> This is OK but the more popular alternative is 6. cxd4 as in O Kanmazalp vs E Romanov, 2017.

<6... d5 7. b4?> With this move, White's game takes a turn for the worse. Better here is 7. Be2 = or 7. Bb5 =.

<7... dxc4 8. bxc5?> This might be the losing move.

Better is 8. exf6 Bd6 9. fxg7 Rg8 10. O-O dxc3 11. b5 Nb4 12. Nxc3 Qf6 13. Ne4 Qxg7 (not 13...Qxa1?? 14. Nxd6+ cxd6 15. Qxd6 Qxg7 16. Bg5 ) 14. Bg5 Be7 15. Qe2 =.

<8... Ne4 9. cxd4 Qd5 10. Be3 Bg4 11. h3 Bh5 12. Na3 O-O-O 13. Nc2 Nc3 14. Qd2 Bxf3 15. Qxc3 Bxg2 16. Rg1 Bf3 17. Nb4 Nxb4 18. Qxb4 Rhe8 19. Qa4?>

This (19. Qa4?) clearly loses to 19...Rxe5! Putting up more resistance is 19. Rc1 f6 to .

<19... Rxe5!> This deflection and clearance tactic solves the Wednesday, Apr 26, 2017 chessgames.com puzzle.

<20. dxe5 Qd3 0-1> White resigns as it's mate-in-three after 21. Qc2 Qxc2 22. Bd2 Qxd2+ 23. Kf1 Qe2#.

Apr-26-17  BxChess: I went for the round about method:
19. ...Rxe5 20. dxe5 Qxe5 21. Rc1 Qb2 22. Qc2 Rd1+ with mate to follow. Not as nice as the game line.
Apr-26-17
Premium Chessgames Member
  agb2002: Black has an extra pawn.

White threatens Qxa7 and Rxg7.

If the d-pawn were not there then 19... Qd2+ (or even Qd3) would win at once. This suggests 19... Rxe5 (19... Qe4 20.Qxc4 Rxe5 21.Rxg7 threatening Qxf7):

A) 20.Qxa7 Qxd4 and the triple threat Qd1+, Qd2+ (both with mate next) and Qxa1# wins. For example, 21.Qa8+ Kd7 22.Qa4+ Ke7 23.Rd1 (23.Rb1 Qd2+) 23... Qxd1+ (or 23... Rxe3+ 24.fxe3 Qxe3+ 25.Kf1 Qe2#) 24.Qxd1 Rxd1#.

B) 20.Rxg7 Qxd4

B.1) 21.Rb1 Qd2+ 22.Kf1 Qd3+ 23.Kg1 Qxb1+ 24.Kh2 Qh1+ 25.Kg3+ Qg2+ 26.Kf4 Re4+ 27.Kf5 Qxg7 etc.

B.2) 21.Rc1 Rxe3+ 22.fxe3 Qxe3+ 23.Kf1 Qcx1+ 24.Kf2 Qb2+ wins both rooks.

C) 20.Kf1 Re6 21.Rxg7 (21.Qxa7 Ra6 wins the queen) 21... Qf5 looks winning for Black. For example, 22.Rg3 Qd3+ 23.Kg1 Rxe3 24.fxe3 Qxe3+ 24.Kf1 (24.Kh2 Qf2+ 25.Rg2 Qxg2#) 24... Qf4 25.Rxf3 (due to Qxg3 and Bd1+) 25... Qxf3+ 26.Ke1 (26.Kg1 Rg8+ 27.Kh2 Qg2#) 26... Qe3+ 27.Kd1 (27.Kf1 Rg8 wins) 27... Q(R)xd4+ wins.

Apr-26-17
Premium Chessgames Member
  agb2002: I was anticipating Rxe5 with my initial comment. It should say "Qd3 would win at once".
Apr-26-17
Premium Chessgames Member
  agb2002: And I even forgot the main line 20.dxe5...
Apr-26-17  yadasampati: Very easy. Took me less than 10 seconds. The idea of creating a hole in whites line of pawns is obvious, and there are actually no other moves for black that seem to lead anywhere.
Apr-26-17  groog: Not too difficult for a Wednesday.
Apr-26-17  saturn2: 19..Rxe5 and white cannot play 20 dxR instead he can delay a bit with 20 Qxa7 or the like. At the end of the day he is lost anyway.
Apr-26-17  Walter Glattke: Al wazir, "Carlsson" would answer 20.Kd2 with 20.-Rd6 21.Qxa7? Qe4 mating or 21.Rxg7 b5 22.Qc2 c3+ 23.Ke1 Rh5, no mate, but queen lose.
Apr-26-17
Premium Chessgames Member
  whiteshark: Castle early and often!
Apr-26-17  zb2cr: 19. ... Rxe5; 20. dxe5, Qd3! winning.
Apr-26-17  Carlos0012358: Major blunder 20.dxe5!! That leads to # in four. Best 20.Kd2
Apr-26-17  Cheapo by the Dozen: The main line was pretty easy to find, and puts Black up two pawns with an attack as soon as we recognize that the rook is poisoned.

The "defense" I looked at for a bit was counterplay. Specifically, I checked the lines after

20 Qxa7 Qxd4

to confirm that White can get neither perpetual check nor a winning pin of Black's queen via Rd1.

Apr-26-17
Premium Chessgames Member
  morfishine: An only mover

*****

Apr-26-17  ChessHigherCat: I haven't analyzed in great detail but it looks to me like 29. Rxe5 Qxa2 30. Qxd4 with all kinds of threats, including Qd2+ (mate in 2) or if the Q stays on a4 and white plays Rd1, then Rxe3+. Black has no real threats at all to worry about, so it looks cut and dried. Let's see what I missed...
Apr-26-17
Premium Chessgames Member
  Jimfromprovidence: <agb2002> <This suggests 19... Rxe5

C) 20.Kf1 Re6>

Also in this line is 19... Rxe5 20.Kf1 Rxe3!, below.


click for larger view

The threat is if 21 fxe3, then 21... Qf5 with a discovered check looms.


click for larger view

Apr-26-17  clement41: @<Bx chess> caution! It was not at once evident to me either, but in fact 19 ...Rxe5 20 de?? Qxe5?? 21 Rc1 -only move- Qb2 22 Qxc4 -only move-holds and even give a slight edge to white!
Apr-26-17  Walter Glattke: Confusion, correction, after 20.Kd2 "Carlsen" would play 20.-Qxc5 21.Rxg7 Bc6 22.Qc2 Qa5+ 23.Kc1 Be4 24.Qd2 c3 25.Qe1 Qa3+ 26.Kd1
Bf3+, nice, isn't it?
Apr-27-17  ChessHigherCat: <clement41: @<Bx chess> caution! It was not at once evident to me either, but in fact 19 ...Rxe5 20 de?? Qxe5?? 21 Rc1 -only move- Qb2 22 Qxc4 -only move-holds and even give a slight edge to white!>

19....Rxe5 20. dxe?? Qd1+ 21. Rxd1 Rxd1#

Or as Chris Owen says "20.dxe5 hoot eggers bud mate"

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