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Manfred Herbold vs Iain Gourlay
Open (2005), Olomouc CZE, rd 5, Aug-07
English Opening: Symmetrical. Anti-Benoni Variation (A31)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
May-16-19
Premium Chessgames Member
  drollere: i spent a lot of time looking at 24. Nxe6 and 24. Nxf7, which are not as effective as the game line. black's 25. .. Rd7 seems like a mistake, 25. .. Qc7 might be better.
May-16-19  groog: yep, 25...q-c7 looks better
May-16-19
Premium Chessgames Member
  agb2002: White has a bishop and a knight for the bishop pair and a pawn.

The pawn on f7 is overburdened. This suggests 24.Bxg6:

A) 24... fxg6 25.Rxe6

A.1) 25... Rxe6 26.Qxe6+ Kh8 (26... Kf8 27.Qf7#; 26... Kg7 27.Qf7+ Kh6(8) 28.Qh7#) 27.Qf7 Bg7 (27... Rd7 28.Qxd7 Qg8 29.Qxb7 wins decisive material) 28.Qxg6 Kg8 29.Qf7+ Kh8 30.Qxh5+ Kg8 31.Qh7+ Kf8 32.Ne6+ Ke8 (32... Ke(f)7 33.Qxg7+ Ke8 -33... Kxe6 34.f5#- 34.Nc7+ Qxc7 35.Qxc7 wins) 33.Qxg7 wins.

A.2) 25... Kg7 26.Rxe8 wins (26... Rxe8 -due to 27.Rxd8 Qxd8 28.Ne6+ and being an exchange down- 27.Qd7+ and mate in three).

A.3) 25... Bxg2+ 26.Qxg2

A.3.a) 26... Rxe6 27.Nxe6 Re8 (due to the triple threat Qxb2, Nxd8 and Qxg6+) 28.Qxg6+ Kh8 29.Qxh5+ wins decisive material and keeps the attack.

A.3.b) 26... Qa8 27.Rxg6+ Kf8 28.Qxa8 Rxa8 29.Rxd6 wins decisive material.

B) 24... Bxg2+ 25.Qxg2 and the double threat Qxb2 and Bxf7+ wins decisive material.

C) 24... Re7(f8) 25.Bxh5 is disastrous for Black.

May-16-19
Premium Chessgames Member
  whiteshark: <The chess therapist> has a new patient.

Manfred Herbold has written 3 entertaining chess books mixing his profession with his chess adventures... Wellness for the troubled chess soul...

May-16-19  mel gibson: I wasn't sure.
The computer has a different order of play
but the 1st move is the same as the text.

Stockfish says.

24. Bxg6

(24. Bxg6 (♗b1xg6
♗b7xg2+ ♕h3xg2 f7xg6 ♖e1xe6 ♖e8xe6 ♘g5xe6 ♖d8-d7 ♕g2xb2 ♕b8-b7+ ♔h1-g1 ♕b7-e4 ♘e6-g5 ♕e4-e7 ♕b2-g2 ♔g8-h8 f4-f5 g6xf5 ♖f1xf5 ♕e7-e1+ ♖f5-f1 ♕e1-e8 ♕g2-c6 b6-b5 ♘g5-f7+ ♕e8xf7 ♖f1xf7 ♖d7xf7 c4xb5 a6xb5 ♕c6xd6 ♔h8-h7 ♕d6-d3+ ♔h7-h6 ♕d3xb5 ♖f7-g7+ ♔g1-f2 ♖g7-f7+ ♔f2-g3 ♖f7-g7+ ♔g3-h4 ♖g7-g4+ ♔h4-h3 ♔h6-g6 ♕b5-d5 ♔g6-h6) +8.60/33 81)

score for White +8.60 depth 33.

May-16-19  catlover: I thought that 24. f5 might work. It looked like 24...exf5 25. Bxf5 Rxe1 26. Rxe1 gxf5 27. Qxf5 give white a good attack.

But if instead of 26...gxf5, black plays 26...Re8 then white is in trouble.

No points for today. I think I need to see that chess therapist.

May-16-19
Premium Chessgames Member
  drollere: <A) 24... fxg6 25.Rxe6>

25. .. Qc7
26. Rxg6+ Bg7
27. Qxh5 Rd7
28. Qh7+ Kf8

for example.

May-16-19
Premium Chessgames Member
  agb2002: <drollere> Now 29.Rxg7 is crushing.

The maneuver Rxg6+ followed by Qxh5 is winning but I should have considered Qc7 and Rd7.

May-16-19  schachfuchs: The best what the engine has to offer after 24...fxg6 25.Rxe6 is 25...Bxg2+ 26.Qxg2 Rxe6 27.Nxe6 Rd7 28.Qxb2 Qb7+ 29.Kg1 +- +6.4

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