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Richard Rapport vs Grzegorz Gajewski
HUN-POL Friendly Match m (2014), Budapest HUN, rd 2, Jun-09
Queen's Gambit Declined: Ragozin Defense (D38)  ·  1-0



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sac: 27.Nxf6 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Nov-13-15  morfishine: Surely, it must be <27.Nxf6>! Stop calling me Shirley


Premium Chessgames Member
  agb2002: I missed 30... Nd4 in my line A. However, according to Stockfish White gets an extra pawn and a winning ending after 31.Bxg8 Rxc3 32.Bb3 Ke8 33.Ng7+ Kf8 34.Ne6+ Nxe6 35.Bxe6 + -, at about +4.
Premium Chessgames Member
  sjunto: I also picked 27. Qxe5+, but Stockfish gives this 3.95 vs 17.25 for 27. Nxf6.There's only one best move, and I didn't find it.
Nov-13-15  diagonalley: nah... i went 27.R-Q5 B-B3 28.RxP+ PxR 29.QxP+ with various threats ... not as conclusive as the game line... looked promising though
Nov-13-15  ozu: Got the first 2 moves..
Nov-13-15  Ferro: Lo de siempre
Nov-13-15  gofer: I was looking for a spoiler on Friday the 13th, but I don't this is one. The queen sacrifice definitely wins...

<27 Qxe5+ fxe5>
<28 f6+ Ke6>
<29 Bd5+ Kd6>
<30 Rxf7+ Kc5>
<31 Bxg8 Be8>
<32 Bxc4 Kxc4>
<33 Rd8 Bf7>
<34 Rd7 Be6>
<35 Rc7+ Kd5>
<36 f7 >

click for larger view


Hmmm, that a little annoying...

Nov-13-15  wooden nickel: <One shouldn't praise the day before the evening> but Fri. 13th has been lucky so far... at least 27.Nxf6 works fine, the queen sac 27.Qxe5 is harder to spot and earns more merit! The line 29.Qxe5+ Kh7, picking up the loose bishop with 30.Qxb5 looked fine but the superior 29.Qh4 leading to mate is even better!
Nov-13-15  clement41: Qxe5+ is what I saw first. Then ...fe f6+ and whatever black's reply, white's pieces are so harmonious they destroy black. A cute variation is ...Ke8 Rd8+ Be8 forced Ng7! quiet yet crushing move Qxg7 ( forced) Rxe8+! decisive zwichenznug Kxe8 forced fxg7 and promotion cannot be prevented. Instead of Rxe8+ the routine fxg7+ Kxg7 Rxe8 leaves white with a lot of endgame work
Premium Chessgames Member
  patzer2: Missed both the strong winning game continuation with 27. Nxf6! and the Queen sacrifice combination with 27. Qxe5! discussed by several posters above.

I went down in flames with the embarrassing 27. Bd5??, overlooking that 27. Bd5?? Rxg4! (-6.93 @ 20 depth, Deep Fritz 14) turns the tables and wins for Black. With a bit more forethought than a blitz-like guess at a Friday puzzle, I might have thought to prepare my idea with 27. h3 when White has a small edge after 27. h3 Qg5 28. Bd5 (+1.11 @ 22 depth, Deep Fritz 14).

According to Deep Fritz 14, the game move 27. Nxf6! (+18.10 @ 25 depth) is stronger than the winning alternative 27. Qxe5! (+ 2.93 @ 25 depth).

Deep Fritz 14 indicates two other alternatives 27. a4 (+2.71 @ 25 depth) and 27. Rd2 (+2.98 @ 25 depth) are also winning.

After 27. Nxf6+! Kxf6 28. Rd6+! (diagram below) White has a fairly simple win:

click for larger view

If 28...Ke7, then it's mate-in-three after 29. Qxe5+ Kf8 30. Rd8+ Be8 31. Rxe8#.

If 28...Kg5, then it's mate-in-one with 29. h4#.

After 28...Kg7, the game continuation 29. Qh4! forces mate-in-ten according to Deep Fritz 14.

However, after 28...Kg7, the simple Queen Fork 29. Qxe5+ Kh7 Qxb5 (+4.83 @ 24 depth) also wins.

Premium Chessgames Member
  patzer2: For a Black improvement, Deep Fritz 14 indicates 16...Qe5 = (0.00 @ 22 depth) is slightly better than the game move <16...Qf5>, allowing 17. g4! (+0.44 @ 21 depth).

Black's game takes a serious turn for the worse with <21...h6?> 22. Ng3 (+1.32 @ 21 depth). Instead, 21...Bb7 (+0.50 @ 21 depth, Deep Fritz 14) keeps Black in the fight.

The decisive mistake, according to Deep Fritz 14, is <22...Rxd1?> 23. Rxd1 (+2.48 @ 21 depth). Instead, 22...Qg7 23. Nh5 (+1.60 @ 23 depth) gives Black at least a slim chance of holding the draw.

Nov-13-15  dfcx: Material is even.

27.Nxf6 and black is done.

27...Kxf6 28.Rd6+ Kg7 (Ke7 29.Qxe5+ and Kg5??? 29.h4#) 29.Qh4 followed by either Qxh6 or Qf6

Refusing the knight allows Qxe6 also winning.

Nov-13-15  stacase:   Nxf6 releases the Tasmanian Devil

Premium Chessgames Member
  thegoodanarchist: < Penguincw: ...

(I don't know what I said, or why I said it) >

One of life's little mysteries :)

Premium Chessgames Member
  Jimfromprovidence: There is also 27 Nxf6 Qb8.

click for larger view

White wins win 28 Qh4.

click for larger view

The threat of 29 Nd7+ costs black much material to prevent.

Premium Chessgames Member
  offramp: Grzegorz Gajewski was pwned up the bajewski.
Nov-13-15  ColeTrane: This game could be called "Building Rapport"
Premium Chessgames Member
  kevin86: The rook sac opens the door and the bishop faces in to win the game!
Nov-13-15  saturn2: I got the moves 27 and 28, although I considered 28 Qh5+ first. If black does not accept at move 27 it is also to his disadvantage.
Premium Chessgames Member
  jith1207: I calculated correctly every single move correctly till the end, that does not happen often during Fridays.

I hope the FT13 comes up sooner next time and more frequently than what <Penguin> said.

Premium Chessgames Member
  Alex Schindler: Is this really a Friday? Saw the line through to the end of what was played right away... admittedly, I still have to justify the move by looking at responses besides Kxf6, but it's a pretty forcing move and I don't see an immediate alternative for black without obvious material loss.
Nov-13-15  The Kings Domain: Impressive knight sacrifice. Even black didn't see the depth of its calculation.
Nov-14-15  CHESSTTCAMPS: Material is even, but the "half-shell" fortress of the black king is particularly brittle, because the pawns on f6/e5 lack the protection of a dark-squared bishop. Therefore, the base pawn at f6 is an obvious target for an attack on the king:

27.Nxf6! and white can calculate a mate or a winning position in short order:

A.27... Kxf6 28.Re6+ Kg7 (Kg5 29.h4#) 29.Qxe5+ Kh7 (Kf8 30.Rd8+ forces mate) 30.Qxb5 Rxf3 31.Qe5 Rc5 32.Qf4 Qf8 (Qg7 33.f6 Qf8 34.Be4+ Kg8 35.Qd2 Rd8 36.Qb5+ forces mate) 33.f6 and the threats of Be4+ followed by Qd2 can't be stopped.

A.1 28... Ke7 29.Qxe5+ Kf8 30.Rd8+ Be8 31.Rxe8#

B. 28... Qb8 29.Rd5! Ba6 30.Rxe5+! Kxf6 31.Re6+ wins queen

B.1 29... Kxf6 30.Qh4+ Kg7 31.Rd8 Qc7 32.f6+ Kh7 (Kg8 33.Rg8+) 33.Rh8+! Kxh8 34.Qxh6+ Kg8 35.Qg7#

C. 28...(other queen move) 29.Qxe5+ wins

D. 28... (other) 29.Nxg8 wins

Time for review...

Nov-14-15  CHESSTTCAMPS: Hmm - 29.Qh4 is apparently simpler in A.
Nov-14-15  CHESSTTCAMPS: And I never even considered the queen sac.
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