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Ronald Burnett vs Neil McDonald
Budapest FS05 GM (2003), Budapest HUN, rd 8, May-10
Queen's Gambit Declined: Charousek (Petrosian) Variation (D31)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Apr-27-21
Premium Chessgames Member
  FSR: 34.Nxf6+ Bxf6 (otherwise Nxe8) 35.Rg1 wins the queen.
Apr-27-21  Cheapo by the Dozen: What <FSR> said. Furthermore, attempts to limit Black's material loss to Queen for Rook+Bishop do not work.
Apr-27-21  Walter Glattke: 34.Nxf6 Bxf6 35.Rg1+ Qxg1+ 36.Rxg1+ Bg7 / 34.-Qxf6 35.Rg1+!? Bxg1 36.Rxg1+ Qg7 37.Rxg7 Kxg7 38.Qf4 / 34.Nf6+ Qxf6 35.Rxf6 Bxf6 36.Qf4 Rd6 37.Qxf6
Apr-27-21  stacase: Five straight forward moves.

Starts with noting that Black has positioned his Queen in front of his King. To use my favorite saying, the white Knight's "motor is running" and forking Black's Rook and King is the obvious destination. The rest is a train wreck.

Apr-27-21
Premium Chessgames Member
  agb2002: White has a knight for a bishop and a pawn.

The alignment of the black royal family on the g-file suggests 34.Nxf6+:

A) 34... Bxf6 35.Rg1

A.1) 35... Qxg1+ 36.Rxg1+

A.1.a) 36... Kh8 37.Qf4 Bc3 38.Qf7 Ra8 39.e7 Re2 40.Qf8+ Rxf8 41.exf8=Q(R)#.

A.1.b) 36... Kf8 37.Qf4 wins decisive material.

A.1.c) 36... Bg7 37.Qg4 Re7 38.Qg5 wins decisive material.

A.2) 35... h6 36.Rxg5+ followed by 37.Qg6+ wins decisive material or mates on f7.

B) 34... Kf8 35.Nxh7+ wins.

C) 34... Kg7 35.Nxe8+ wins.

D) 34... Kh8 35.Qxh7#.

Apr-27-21  mel gibson: I saw that straight away.

Stockfish 13 agrees with the first few moves
but manages to spin the game out for a long time:

34. Nxf6+

(34. Nxf6+ (♘g4xf6+ ♗d4xf6 ♖f1-g1 ♖d2-d7 e6xd7
♖e8xe4 ♖g1xg5+ ♔g8-f7 ♖e1xe4 ♗f6xg5 ♖e4-e8 b7-b6 a3-a4 ♗g5-f6 ♔h1-g2 ♗f6-e7 ♔g2-f3 ♗e7-d8 ♔f3-e4 ♗d8-h4 ♔e4-d5 h7-h6 ♔d5-c6 b6-b5 a4-a5 ♗h4-e7 ♔c6-d5 ♗e7-f6 d7-d8♕ ♗f6xd8 ♖e8xd8 ♔f7-f6 ♔d5-e4 h6-h5 ♖d8-d7 ♔f6-g5 ♖d7-g7+ ♔g5-h6 ♖g7xc7 ♔h6-g6 ♖c7-c6+ ♔g6-g7 ♖c6xa6 h5-h4 ♔e4-f5) +12.85/40 592)

score for White +12.85 depth 40.

Apr-27-21  Brenin: As in yesterday's POTD, the combination starts earlier. White's 33 f6, forcing Black to open the g-file with 33 ... gxf6, would make a more challenging puzzle than this very easy one.
Apr-27-21  malt: Did not spy it at first

34.N:f6+ B:f6 35.Rg1 picks up the Queen.

Apr-27-21  Refused: 34.Nxf6+ curtains.
Black has to capture on f6 otherwise something will capture on h7

34...Kh8 or 34...Kg7 35.Qxh7
34...Kf8 35.Nxh7+

34...Bxf6 35.Rg1

34...Qxf6 35.Rxf6

Apr-27-21  TheaN: <34.Nxf6+ +-> given there are enough variations to consider but Black's toast, and it's apparent immediately.

The five answers are rather distinct but all bad, the 'bad' four: 34....Kh8 35.Qxh7#, 34....Kg7 35.Qxh7+ Kf8 36.Qf7#, 34....Kf8 35.Nxh7+ +- at least, there might be a faster mate in there, 34....Qxf6 35.Rxf6 Bxf6 36.Qf4 +- this fork will come back in the main line.

That leaves 34....Bxf6 35.Rg1. Besides the fact this wins Q:RB, White still has a dominating position. After 35....Qxg1+ 36.Rxg1+: 36....Bg7 37.Qe5 Re7 38.Qg5 +- is out of the question and on anything else White will at least follow with Qf4 +-. If Black tries to bolster the position slightly with 35....h6, 36.h4 +- forces Qxg1+.

Apr-27-21
Premium Chessgames Member
  chrisowen: Fandom vintage bunch of it fives Nxf6+ hat a frugal pig buddys oxo vintage fandom ham cessate vintage him ticks off oak eys darns barns brand vam rew quips pugil glove its odds vintage yip hip tarnish male its wu bug visages vow vintage totadd flood awooga joy dog rah fluffs Qh5 gem muffs fanfare 8 foots divide it into u vintage tarnish fifths Nxf6+ fanfare it lord;
Apr-27-21
Premium Chessgames Member
  Jimfromprovidence: I like the pleasing solution that occurs if black had played 35...Rd7 instead.


click for larger view

White wins after 36.Rxg5+ Bxg5 37.exd7 Rxe4 38.Rxe4 Kf7 39.Re8.


click for larger view

Apr-27-21  AlicesKnight: Found 34.Nxf6 comfortably - Q for R/N with a pin or fork to come and the e-pawn a menace.
Apr-27-21  Cheapo by the Dozen: Black was in substantial difficulty as soon as White established the pawn on e6.
Apr-27-21  WorstPlayerEver: Did not expect White to mate soon here.
Apr-27-21
Premium Chessgames Member
  opus: 38.e7 Bxe7 39. Qc4+ Kh8 40. Qxc7 Rd8 41. Rxg7 Kxg7 42. Qxe7+ Kh8 43. Qxd8+ Kg7 44. h4 Kh6 45. Kg2 Kh5 46. Kg3 h6 47. Qf6 b5 48. Qf5#

Knight threatens K-Q fork:

34. Nh6+ Qxh6 35. Qg4+ Kh8 36. h3 f5 37. Qxf5 Rf8 38. Qxf8+ Qxf8 39. Rxf8+ Kg7 40. e7 Rf2 41. e8=Q Rxf8 42. Qe7+ Kg8 43. Qg5+ Kh8 44. Rd1 Rg8 45. Qh4 Bg7 46. Rg1 c5 47. bxc5 b5 48. cxb6 a5 49. b7 Rb8 50. Qe7 Bh6 51. Rg8+ Rxg8 52. Qe5+ Bg7 53. b8=Q Rxb8 54. Qxb8+ Bf8 55. Qxf8#

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