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Zheng Yuan Terry Chua vs Patrick Aizpurua
Khanty-Mansiysk Olympiad (2010), Khanty-Mansiysk RUS, rd 9, Sep-30
French Defense: Rubinstein. Fort Knox Variation (C10)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
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Apr-16-13  stst: Only visual:
24.Qxg7+ Qxg7
25.Re8+ Qg8
26.Bf6#
Apr-16-13  Abdel Irada: <<•> Carpe diem? <•>>

This is one of those cases: White is temporarily a piece up, but unless he can find a way to take *immediate* advantage of this edge, he will lose it.

In an actual game, this would suggest a search for a resource; in a puzzle, it demands one. And since it *is* a puzzle, we find one conveniently to hand.

<<•> 24. Qxg7†!, Qxg7

25. Re8†, Qf8 >

If (a) 25. ...Qg8 26. Bf6#.

<<•> 26. Bf6†, Kg8

27. Nh6# >

Well, we all *knew* that "temporary" knight on f5 would come in handy, didn't we?

Apr-16-13  Abdel Irada: <Yogi Darwin: 24. Re8 leads to a mate in two.>

After 24. Re8?, Bxd7, where is the mate?

(Note as you answer that the rook on a8 now defends the queen.)

Apr-16-13  King Sacrificer: <Yogi Darwin: 24. Re8 leads to a mate in two. Not as flashy as the Q sacrifice but it is quicker.>

24. Re8 Bxd7

Where is the mate?

Apr-16-13  King Sacrificer: <Abdel Irada> LOL, you beat me.
Apr-16-13  morfishine: <24.Qxg7+ Qxg7 25.Re8+ Qg8 26.Bf6#>

"I'll keep the finger and sacrifice the pawn" - morf, circa 2013

Apr-16-13  Oxspawn: Oxspawn: A bit like yesterday’s position, but one step easier because the rook move is vertical rather than horizontal (why are they easier to see?), and one step harder because there is one more move to find. However, it has the same basic plot. The queen sacrifices herself, the knight holds her coat, and the rook arrives on the scene waving a cudgel. In the added move, the bishop delivers the final stiletto. I wish my explanation contained less violence. Maybe black was persuaded to resign quietly after the first move?

<24. Qxg7+ Qxg7
25. Re8+ Qg7
26. Bf6++>

Apr-16-13  Oxspawn: No such luck...
Apr-16-13  Yogi Darwin: <Abdel Irada and King Sacrificer> Thank you for pointing out my error. I really should attempt these puzzles at other times than right before going to bed! I do appreciate your feedback.
Apr-16-13  James D Flynn: White is a piece and 2 pawns up but his Q is attacked by the B on c8 and if he makes a quiet move e.g. 24.Qd5, then Black will win back the piece by Bxf5. However Black looks very vulnerable on the back rank so White should look for tactical opportunities to divert the Black Q from the back rank. 24.Qxg7+ Qxg7 25.Re8+ Qg8 26.Bf6#
Apr-16-13  zb2cr: White's Queen is under attack, and if he moves it his extra Knight goes lost. He is in fact two Pawns ahead, as well, but the position looks like there is a combination available due to Black's weak back rank. The move is 24.Qxg7+, forcing 24. ... Qxg7. Then White plays 25. Re8+! Now Black is forced to interpose his Queen, on either f8 or g8.

If 25. ... Qg8; 26. Bf6#.

If 25. ... Qf8; 26. Rxf8#. (26. Bf6+, Kg8; 27. Nh6# is a prettier mate but one move longer.)

Apr-16-13  David2009: More to this puzzle than meets the eye - White is NPP up but needs to find a good move to save the extra piece. He does just that!
Apr-16-13  morfishine: <Oxspawn> On your query: <...because the rook move is vertical rather than horizontal (why are they easier to see?> A study concluded the human brain recognizes vertical and diagonal lines/shapes more readily than lateral ones. Exactly why, I don't know; the net result for chessplayers is they need to work harder at recognizing lateral moves, pins, etc.
Apr-16-13  moodini: In chess terms I think Quantum1982 is trying to say that God sacrificed his son and announced mate in 70 (threescore years and ten).
Apr-16-13
Premium Chessgames Member
  chrisowen: A reign gruffed in mack it you in lama 24.qxg7+

fetch a mauling queen over in g7 loosen mecurials,

light will mate I suppose in juicy 25.re8+ one for the purists in g5 or in give backdate again empty apathy enact rook in e8+ when energise the get going bishopf6 or rxf8+ in cream par faith in,

heading one pick too farthing queen apostle a pony,

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25...Qg8 at enact it he in just again f6#

Apr-16-13
Premium Chessgames Member
  chrisowen: Capt aint it knowledge in at good game line decking,

h8 in think it you in ado it book in staple diet a cinch in chill e6 a re 12...c5 gives see rejoinder I aqua 14.qxe6+ white wins a pawn and a piece due,

to the crossing pins and a mating g7 queen gander my tight spot dink for dangle a mind cliff knightf5 ace ogle a find in tree building fortress in f8,

wrestle in daffy it oh in door a ducked cripple c8 at share in be the honey pot d7 dam sitter g7 a wave in e8+ cresting bf6 or ha pings 25...Qf8 of a fashions queen manage zilch in clop a h6 in fat,

chance knight forage in bishop too f6 eline in e8+

rich again really it is single a tooked 26.Rxf8 in 26.bf6 a plinth to a dial one sundry it account in together d7 advantage off re g5 yes the windowry,

back in parties linger true delight it another go,

ok c5 in the heap bin ball e6 in clop affable at he doors seed gaffer!

Apr-16-13  vinidivici: A little heat at the tuesday puzzle.
Way to go!
Apr-16-13  kevin86: I tried Re8,then Qe8... Oh,for too.
Apr-16-13  MountainMatt: My God, this took forever for me. I'm good (relatively) at finding material-winning combos, but for some reason those that mate are usually much more elusive to my eye! Nonetheless, after an eon or two I found 24. Qxg7+ Qxg7 25. Re8 Qg8 26. Bf6#

<Quantum1982> Amen.

Apr-16-13  BOSTER: I know the <modern> theory that playing chess you should not play always good moves, sometimes you can play bad moves to make your opponent more <nervous>.

Many amateur players believe that when they throw out some material (ballast), their ship can easily overcome the storm during the battle. Somebody believes that GM consider more <stupid> moves than other players. In this game black played <classical sacr.> to make his position not to be overweighted.


click for larger view

White to play move 13, and after Nxe6 fxe6 Qxe6+ Kh8 Qxe7 black can begin a new game. It's not so easily to find the truth in the game like chess.

Apr-16-13
Premium Chessgames Member
  ajk68: Guess he thought he was getting his piece back with Bc8...whoops...
Apr-16-13  mistreaver: Tuesday.White to play.Easy.24?
Seems like white can go for the following 'sacrifice' : 24 ...Qxg7+
25 Qxg7 Re8+
Now both queen retreats lose:
A) 26 Qg8 Bf6 check and mate
B) 26 Qf8 Rxf8 is primitive mate, but
26... Bf6+
27 Kg8 Nh6 mate is much more entertaining.
Apr-16-13  whiteshark: My idea of exercise is a good brisk sit.
Apr-16-13  Alex56171: I like this line: 24.Qxg7+ Qxg7 ▢ 25.Re8+ Qg8 26.Nh6 and #1 whatever be the next move of Black.
Apr-16-13  thegoodanarchist: <whiteshark: My idea of exercise is a good brisk sit.>

Wow, then my job is keeping me very exercised!!

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