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Alexander Morozevich vs Viswanathan Anand
"Chilled to the Moro" (game of the day Jan-04-2015)
Moscow PCA-Intel GP (1995) (rapid), Moscow RUS, rd 2, Apr-29
King's Gambit: Accepted. Bishop's Gambit Bogoljubow Defense (C33)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 6 OF 6 ·  Later Kibitzing>
May-15-15  SimplicityRichard: And also as an exponent of the King's Indian Defence ie. comparing my results with the King's Indian as Black, I do better with the King's Gambit as White.#
Jun-05-15
Premium Chessgames Member
  matamuff: When Anand at the twenty-eighth move captures with the pawn is the game then lost I think not.
May-11-16  posoo: KaSMASH. KaPRUMMO! DIS DIS DIS is a trammendus game dat involves MANY consecative smashings.

PLEASe all let me GO!

Feb-08-19  ChessHigherCat: The pun is pretty good, especially since МОРОЖЕНОЕ means frozen stuff (ice cream).

Very complicated with only 1 minor piece off at the start.

Let's see if this is right:

24. Nxg6 hxg6 25. Rxe6 fxe6 26. Bxg6 Ng7 27. Qh3 Ndf5 28. Qh7#

Feb-08-19  ChessHigherCat: Hey, you have to play the moves in the right order, that's no fair! Plus FishStick says I missed the best defense 26...Rf8:

1) -0.87 (21 ply) 25...fxe6 26.Bxg6 Rf8 27.Qxh5 Rxf1+ 28.Kxf1

Feb-08-19  Walter Glattke: 24.Bxd6 Qxd6 25.Nxf7 Bxf7 26.Qxf7+ Kh8 27.Re7 / 25.-Qd7 26.Mh6+ Kh8 27.d5 Bxd5 28.Qc3+ Qg7 get draw 27.Qe3 Bg8 draw
Feb-08-19
Premium Chessgames Member
  al wazir: I looked first at the game line 24. Nxg6 hxg6 25. Bxg5 fxg6 26. Rxe6, but didn't see a way to finish.

My try was 24. Bxd6 Qxd6 25. Nxf7 Bxf7 (which isn't forced) 26. Qxf7+ Kh8 27. Re7. But now 27...Qdx4+ 28. Kh1 Ng7 defends.

Feb-08-19  Cheapo by the Dozen: I settled on 24 d5, which also seems to win. The bishop is essentially trapped, in that d7 is a lousy square for it because of the implications for f7.
Feb-08-19  sudoplatov: I only found 24.d5 too. I never thought of Nxg6.
Feb-08-19  ChessHigherCat: I looked at 24.d5 too but I thought it was too complicated because of Qb6+ followed by Qxb4 but maybe black doesn't have time
Feb-08-19  RandomVisitor: From Emergence in Games, Sweetser, 2008:

p.81-82 <Understanding the state of a chess game is not a simple matter of adding the values of the pieces on the board>. As with all complex systems, the whole is more than the sum of its parts. The pieces on the board interact to support one another... Chess is a game of emergence as the simple, low-level pieces and rules give rise to complex, high-level behavior and properties that are not present or predictable from the low-level components individually. Understanding the state of a chess game involves describing not only the pieces and their positions, but the emergent patterns and formations of the pieces.

p.83 Interactions in the game world are the foundation of the gameplay and the types of interactions depend on the game genre.... In real-time strategy games, interactions include... attacking, and defending.

p.84 The environment is the central component of an emergent game system as it defines the game world and the interactions that are possible within the world.

p.86 Objects in games are numerous and varied... Each type of game object interacts with the game environment and the player in different ways, which gives rise to interesting possibilities for action for the player

Feb-08-19  rudiment: I also went with a Bxd6 line but couldn't find a decisive advantage.
Feb-08-19  The Kings Domain: One of the best non-classical games, watching the video of this in YouTube was a delight. The young Morozevich delighted the crowd with this outstanding game. His smooth and stellar offensive showed him to be one of the masters of the attack. Anand countered well but his younger opponent was one step ahead of him all the way. Never fails to please.
Feb-08-19
Premium Chessgames Member
  perfidious: Did not come close to nailing this POTD.
Feb-08-19
Premium Chessgames Member
  whiteshark: As the above yt-link doesn't work, here's another one: https://www.youtube.com/watch?v=ubS...

▪ Game starts at 3m:44s;

▪ Puzzle position reached at 25m:46s;

▪ Moro plays <24.Nxg6!> at 27m:21s.

Some 24 years ago they look soooo young and <Daniel ♔>'s voice hasn't changed since then.

Feb-08-19  Walter Glattke: I think for 28.-gxf5 29.g6 Qxe6 30.Qxe6+ Kh8 31.Bc3 Ng7 32.d5 Rg8 33.d6 Rad8 33.Qf7 but stockfish surely will find a better end.
Feb-08-19  RandomVisitor: <whiteshark>Nice video link. Morozevich calmly sacs his pieces and takes his win.
Feb-08-19
Premium Chessgames Member
  agb2002: White has the bishop pair for a bishop, a knight and two pawns.

White has Bxd6, Bxg6 and Nxg6.

In the case of 24.Bxd6 Qxd6 25.Nxf7 Qxd4+ 26.Kh1 Bxf7 27.Qxf7+ Kh8 28.Re7 Ng7 Black seems to hold.

-----

In the case of 24.Nxg6:

A) 24... hxg6 25.Bxg6

A.1) 25... fxg6 26.Rxe6

A.1.a) 26... Rd8 27.Rxg6+ Ng7 (27... Kh7 28.Qxh5#; 27... Kh8 28.Qxh5+ Qh7 29.Rh6 wins) 28.Bxd6 Rxd6 29.Rxd6 Qxd6 30.Qf7+ Kh8 31.Qxh5+ Kg7(8) 32.Qf7+ Kh8 33.Rf4 wins.

A.1.b) 26... Nf7 27.Rxg6+ Ng7 28.Rxg7+ Kxg7 29.Qf6+ Kg8 (29... Kh7 30.g6+ followed by 31.gxf7+ wins decisive material) 30.Qg6+ Kh8 31.Rxf7 wins decisive material.

A.1.c) 26... Ne8 27.Qf8+ Kh7 28.Rh6#.

A.1.d) 26... Nb5 27.Rxg6+ Ng7 28.Qd5+ and mate in two.

A.1.e) 26... Nf5 27.Rxg6+ Qg7 (27... Nf(h)g7 28.Qd5+ as above) 28.Qxf5 wins decisive material.

A.1.f) 26... Kh7 27.Bxd6 Qd8 28.Re7+ wins.

A.2) 25... Ng7 26.Bxd6

A.2.a) 26... Qxd6 27.Bxf7+ Bxf7 (27... Kh7(8) 28.Qf6 wins due to Qh6# -28... Bxf7 29.Qxd6-) 28.Qxf7+ Kh7(8) 29.Rf4 wins.

A.2.b) 26... Qd7 27.Rxe6

A.2.b.i) 27... fxe6 28.Bf7+ Kh7(8) 29.Qh3+ Nh5 30.Qxh5+ Kg7 31.Qh6#.

A.2.b.ii) 27... fxg6 28.Re7 Qxd6 29.Qf7+ Kh7(8) 30.Qxg7#.

B) 24... fxg6 25.Rxe6

B.1) 25... Nf7 26.Re7 Nxg5 27.Qd5+ followed by Rxc7 wins.

B.2) 25... Nf5 26.Bxf5 wins a piece.

B.3) else 26.Bxg6 as in A.

Feb-08-19
Premium Chessgames Member
  Jimfromprovidence: This is one of those puzzles that I struggle to figure out what happened even after knowing the answer.

The video that <whiteshark> provided the link to is superb to help understand this brilliant game.

Feb-08-19  devere: Nice game!
Feb-08-19  cormier:


click for larger view

Analysis by Houdini 4 <d 20 dpa done

1. = (0.00): 22...Nd5> 23.Bxh7+ Kxh7 24.Qh4+ Kg8 25.Bxd6 Qxd6 26.g6 fxg6 27.Nxg6 Bf5 28.Qh8+ Kf7 29.Rxf5+ Nf6 30.Qh5 Qxd4+ 31.Kg2 Qd2+ 32.Re2 Qd5+ 33.Kf2 Qd4+ 34.Kf3 Qd3+ 35.Kg2 Qd5+ 36.Kf2

2. + - (4.22): 22...Nh5 23.Qf3 f5 24.Qxh5 Rd8 25.g6 h6 26.Rf2 Re8 27.Qf3 Rad8 28.Bxd6 Rxd6 29.Bxf5 Bxf5 30.Qxf5 Rf6 31.Qe4 Qd6 32.Ref1 Re7 33.Qh4 Rxg6+ 34.Nxg6 Qxg6+ 35.Rg2 Qe6 36.d5 Qe3+ 37.Kh1 Qd3 38.Rfg1 Rd7 39.d6 Kh8 40.Qh5 Qxd6 41.Qe8+ Kh7 42.Qe4+ Kh8 43.Rg6 Qf8 44.Qxc4 Qf3+ 45.R6g2 Rd2 46.Qf1 Qxf1 47.Rxf1 Rd8 48.Kg1

Feb-09-19  patzer2: As <cormier>'s Houdini 4 analysis suggests, the losing move for Black was 22...Nh5? allowing 23. Qf3 +-.

Instead, 22...Nd5 = appears to hold it level. Interestingly, GM Daniel King at the 37:14 point of the video link in <Whiteshark>'s post above, says Black is lost tactically after 22...Nd5 23. Bxh7+ Kxh7 24. g6+ Kg8 25. Qh4 fxg6 26. Nxg6 = (diagram below):


click for larger view

However, the computers disagree with GM King's assessment of a White win in this position.

Black can apparently hold (diagram above) with either 26...Nf7 = (0.00 @ 46 ply, Stockfish 10) or 26...Nf5 = (0.00 @ 46 ply, Stockfish 10).

GM King does correctly observe that if 26...Nf5? in this position (diagram above), White wins with 27. Rxe6 +- (mate-in-13, Stockfish 10 @ 44 ply). However, he does not consider either 26...Nf7 = or 26...Nf5 = in his brief post game analysis of this possibility.

I was even more confused than the two GMs commenting on this game, at <Whiteshark>'s video link, in examining the two winning solution's 24. d5! +- and 24. Nxg6!! +- to today's Friday (24. ?) puzzle . I made a best guess that the solution was 24. Nxg6 hxg6 25. Bxg6 +- as in the game, but I wasn't sure it was a win until I plugged it into the computer.

After going over the game and the two solutions with Stockfish 10, I find 24. d5! to be a much easier solution to calculate.

P.S.: I am currently teaching chess to an 80 year old cleric (An African-American Bishop in his denomination) who thoroughly loves learning the game. Though he's still trying to remember all the rules and piece moves, I've started going over the chessgames.com puzzles with him. He loves seeing the tactical possibilities, and thoroughly enjoyed this game. The Bishop is also learning Spanish, and says learning games like chess and foreign languages help keep his mind sharp. It's fun teaching our game to someone who truly enjoys learning it.

Feb-09-19  landshark: <Patzer2> I took 24.d5 earlier today looking on my phone - finally home now and breaking it down at my computer after hours and am delighted to know your engine also affirms it as winning - I really liked it and it looked to deprive Black of any good chances as the ....Qb6+ line followed by ...QxB actually leaves the Q derailed while W preserves his light squared B and calmly polishes Black off in the K-side attack.
Feb-09-19  patzer2: <landshark> Yes, the Bishop has no safe square once it's deflected with 24. d5! +-. However, just for the sheer beauty of a young Morozevich throwing caution to the wind and beating a mature, future world champion like Anand with old fashioned, romantic era attacking chess, 24. Nxg6!! +- is an entertaining and instructive combination worthy of study.
Feb-09-19  patzer2: Correction: GM King does correctly observe that if <26...Nf6?> in this position (diagram above), White wins with 27. Rxe6 +- (mate-in-13, Stockfish 10 @ 44 ply). However, he does not consider either 26...Nf7 = or 26...Nf5 = in his brief post game analysis of this possibility.
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