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Slavisa Brenjo vs Dusan Bojovic
21st Belgrade Trophy (2008), Belgrade SRB, rd 5, Dec-01
Sicilian Defense: Classical. Anti-Fischer-Sozin Variation (B57)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Apr-27-18
Premium Chessgames Member
  offramp: 28.Qf4, creeping move.
Apr-27-18
Premium Chessgames Member
  ChessHigherCat: 26. Rxf6 gxf6 27. Qg3+

A. Kf7 28. Rd7+ Re7 29. Rxe7+ Kxe7 30. Qg7+ Ke8 31. Qg8+ Kd7 32. Qf7+ Kc8 33. Qe8#

B. Kf8 28. Bd6+ Re7 29. Bxe7+ Kxe7 30. Qg7+ Ke8 31. Qg8+ Ke7 32. Qd8+ Kf7 33. Rd7+ Kg6 34. Qg8+ Kf5 35. Qxh7+ Ke5 36. Qh5+ f5 37. Qh8+ Kf4 38. g3+ Ke3 39. Qh6+ Kf3 40. Qf4#

C. Kh8 28. Qf4 Rf8 29. Be5 Kg7 30. Rd7+ Rf7 31. Qxf6+ Kg8 32. Qh8#

Let's see if this is a case of long analysis = wrong analysis or strong analysis

Apr-27-18
Premium Chessgames Member
  jith1207: Got the solution perfectly to the text. Once I spotted the rook sac for bishop, it made sense to get through the whole lines, especially when you realize the need to balance offense and defense by having the queen on f-file to protect yourself from back rank checkmate.
Apr-27-18
Premium Chessgames Member
  ChessHigherCat: Well, I didn't anticipate 28. Nc6 but it's not the best defense anyway and an endless analysis is a friendless analysis
Apr-27-18  Marmot PFL: Figures white being up the exchange should return it for attack 26 Rxf6 gf 27 Qg4+ Kh8 28 Qh4 Rf8 (Kg7 Rd7+) 29 Bd6 Rf7 30 Bxb4 Qxb4 31 Rd8+ Kg7 (Rf8 Qxf6+) 32 Qg4+ Kh6 33 Rg8 Qc5 34 Qf4+ Kh5 (Qg5 Rxg5 fg Qxf7+) 35 g4+ Kh5 36 Qg3 mate.

Wouldn't see all this from the beginning (just to move 32) but figuring to get the king to h6 without investing any major material has to be good.

Apr-27-18
Premium Chessgames Member
  al wazir: What was wrong with 26...Rxb8 ? White is winning, but he still has a long slog ahead -- longer than the game as played, I think.
Apr-27-18  princecharming: After 26...Rxb8 27.Rd7, I doubt Black could survive long.
Apr-27-18  WorstPlayerEver: In a a pieceful mood today. I had 26. Qg3, because it wins the e4-pawn. I first considered 26. Be5. Almost worked.
Apr-27-18  stacase: 26.Rxf6 because it exposes Black's castled King and it's a puzzle. Moves after that are more obvious.
Apr-27-18  saturn2: 26 Rxf6 and after either 26..RxB or 26..gxR 27 Qg4 was my choice
Apr-27-18  saturn2: <After 26...Rxb8 27.Rd7, I doubt Black could survive long.> Rather white
Apr-27-18
Premium Chessgames Member
  malt: Had
26.R:f6 gf6 27.Qg3+ Kh8 28.Qf4 Rf8 29.Bd6 Rf7 30.B:b4 Q:b4 31.Rd8+ Rf8 (31...Kg7 32.Qg4+ wins )

32.Q:f6+ Kg8 33.Q:e6+ Kh8 34.Qe5+ Kg8 35.Qg5+
can't see an advantage in this line ( me checks are bouncing )

did not see 28...Nc6
Nul points

Apr-27-18  morfishine: Remove a/the defender <26.Rxf6>
Apr-27-18  Carlos0012358: <offramp: 28.Qf4, creeping move> Yes, and 28.....Nc6 instead of 28.....Nd5 a major blunder.
Apr-27-18  mel gibson: I saw the first move but it looked risky.

Stockfish 8 says:

26.Rxf6
(26. Rxf6 (♖f1xf6 g7xf6 ♕h3-g4+ ♔g8-h8 ♕g4-f4 ♘b4-d5 ♘c3xd5 e6xd5 ♕f4xf6+ ♔h8-g8 ♗b8-e5 ♖e8xe5 ♕f6xe5 ♗b7-c8 ♕e5-f6 ♕c4-e2 ♖d1-f1 ♕e2xf1+ ♕f6xf1 ♗c8-e6 ♕f1xa6 ♔g8-f7 ♕a6-a5 ♔f7-f6 ♕a5-c3+ ♔f6-g6 ♕c3-e5 ♗e6-f7 ♔h1-g1 h7-h6 ♔g1-f2 ♗f7-g8 ♔f2-e3 ♗g8-f7 ♕e5-d6+ ♔g6-g7 ♔e3-f2 ♗f7-g8 ♕d6-g3+ ♔g7-h7 ♕g3-c7+ ♔h7-g6 ♕c7-b6+ ♔g6-g7 ♕b6-d4+ ♔g7-g6 ♕d4-e5 ♗g8-f7 ♕e5-d6+ ♔g6-g7 ♔f2-g1 ♗f7-g8 ♕d6-e5+ ♔g7-g6 ♕e5-g3+ ♔g6-h7 ♕g3-c7+ ♔h7-g6 ♕c7-f4 ♔g6-g7 ♕f4-d6 ♗g8-f7 ♔g1-h1 ♗f7-g8 ♕d6-e5+ ♔g7-g6) +10.03/37 106)

score for White +10.03 depth 37

Apr-27-18  mel gibson: What we see is typical when the Queen of
the losing side loses communication with her King. It's stuck over on the other side of the board unable to help.
Apr-27-18  Marmot PFL: < After 26...Rxb8 27.Rd7, I doubt Black could survive long.>

I would just play 27 Qxe6+ but the rook move is much better.

Apr-27-18
Premium Chessgames Member
  Jimfromprovidence: After 26 Rxf6 Rxb8 there is also 27 Qg3, below, threatening 28 Qxb8+.


click for larger view

Apr-27-18  sombreronegro: There were so few good moves for white here that giving back the exchange to compromise the black king safety was easy to see. The other rook eyeing d7 draws attention until you realize moving it off first rank leads to mate in one.
Apr-27-18  JJF: Hope this isn't too dumb of a question, but what does white play after 34 . . . Kg8? is Black's resignation premature?
Apr-27-18  JJF: Seems like Black might at least have a shot at a draw?
Apr-27-18  Grandma Sturleigh: I didn't see the Qf4 idea, so went with 26. Be5 Bxe5 27. Qh5.
Apr-27-18
Premium Chessgames Member
  malt: <JJF> 35.Rd7
Apr-27-18  mel gibson: <Apr-27-18 JJF: Hope this isn't too dumb of a question, but what does white play after 34 . . . Kg8? is Black's resignation premature?>

It's mate in 10

34. Qf6+ Kg8 (♔h8-g8 ♖d1-d7 ♕c4-f1+ ♕f6xf1
♖e8-f8 ♕f1-c4 ♗b7-d5 ♘c3xd5 ♖f8-f7 ♕c4-c8+ ♔g8-g7 ♕c8-c3+ e6-e5 ♕c3xe5+ ♔g7-h6 ♖d7xf7 a6-a5 ♘d5-f6 a5-a4 ♕e5-h5+) -M10/57 11 1-0

Apr-27-18
Premium Chessgames Member
  agb2002: White has a rook for a bishop and a pawn.

Black threatens Rxb8, Nxc2 and Nd5.

The first idea that came to mind 26.Rxf6 gxf6 27.Rd7 loses at once to 27... Qf1#.

The black rook is defenseless. This suggests 26.Be5:

A) 26... Bxe5 27.Qh5

A.1) 27... Ra(b,c)8 28.Qf7+ Kh8 29.Qf8+ Rxf8 30.Rxf8#.

A.2) 27... Rf8 28.Rxf8+ Kxf8 29.Qxe5 keeps the material advantage with the better position. For example, 29... Qc6 30.Rf1+ Kg8 31.Qb8+ Qc8 (31... Bc8 32.Qxb4) 32.Qxc8 Bxc8 33.Nxe4 + - [R vs b] (33... Nxc2? 34.Rc1).

A.3) 27... B(Q)c6 28.Qf7+ as in A.1.

A.4) 27... g6 28.Qxe5 with a conclusion similar to A.2.

B) 26... Nd5 27.Nxd5

B.1) 27... Bxd5 28.Bxf6 gxf6 29.Rxf6 + - [R vs b] (29... Qxc2 30.Qg3+ Kh8 31.Rdf1 wins).

B.2) 27... Bxe5 28.Ne7+ Kh8 (28... Rxe7 29.Rd8+ Re8 30.Rxe8#) 29.Ng6+ Kg8 30.Nxe5 + - [R+N vs b+p].

C) 26... Rf8 27.Bxf6

C.1) 27... Rxf6 28.Rd8+ Kf7 29.Qh5+ Ke8 (29... g6 30.Qxh7#) 30.Qe8#.

C.2) 27... gxf6 28.Qg3+ Kh8 (28... Kf7 29.Rd7+ Ke8 30.Rfd1 looks winning) 29.Rxf6 Rg8 (29... Rxf6 30.Rd8+ Rf8 31.Rxf8#) 30.Qe5 Nc6 31.Qc7 seems to win.

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