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Karen Asrian vs Tigran Kotanjian
Armenian Championship (2007), Yerevan ARM, rd 1, Jan-27
Sicilian Defense: Richter-Rauzer Variation. General (B60)  ·  1-0



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sac: 27.fxg6 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Oct-08-22  Brenin: Material is equal, and White's N on a5 is en prise. White can defend it and gain a P with 27 Qxb4, but then Rb8 looks nasty. More enterprising is to ignore the N and try 27 fxg6, and if 27 ... fxg6 then 28 Qf2 threatening both Qf7+ and Bb6. If 27 ... Qxa5 then 28 gxf7+ followed by g6 and g7 should be enough for a win.
Oct-08-22  jrredfield: I found 27 fxg6 right away. My first thought was if Black played 27 ... fxg6 it would leave an isolated pawn which White could pick off leaving Black's Kingside quite undefended and if Black declined that pawn capture, White could go with 28 gxf7+, so without figuring out the ensuing continuation I chose that move. I then examined further and saw most of the text moves, particularly 31 g7, 32 Rxg7 and 33 Rg8. Actually one of the easier Saturdays in recent memory.

Komodo Dragon prefers 27 fxg6 by a wide margin (depth 34):

White +15.02: 27.fxg6 ♕xa5 28.♕f2 0-0-0 29.♖xf7 ♗g7 30.♖xg7 ♕e5 31.♖e7 ♕xe4 32.g7 e5 33.b3 ♕h1+ 34.♗c1 ♕c6 35.♕f7 ♗e8 36.♕e6+ ♗d7 37.♖xd7 ♕xd7 38.g8♕ ♖xg8 39.♕xg8+ ♕d8 40.♕f7 a5 41.g6 a4 42.g7 axb3 43.axb3 d5 44.♗b2 d4 45.♕e6+ ♕d7 46.g8♕+ ♔c7 47.♕xe5+ ♕d6 48.♕xd6+ ♔xd6 49.♗xd4

Oct-08-22  mel gibson: I first thought -
let's save my Knight - move it back to b3
but then I realised there was a better move.
Then 27. fxg6 was obvious.

Stockfish 15 says:

27. fxg6

(27. fxg6 (f5xg6 ♕c7xa5 ♕d2-f2 O-O-O ♖h7xf7 ♗f8-g7 ♖f7xg7 ♕a5-e5 ♖g7-f7 ♗d7-e8 g6-g7 ♗e8xf7 ♕f2xf7 ♕e5xe4 g7-g8♕ ♕e4xe3 ♕f7xe6+ ♕e3xe6 ♕g8xe6+ ♔c8-c7 g5-g6 ♖d8-h8 ♕e6-f7+ ♔c7-c6 c2-c3 b4-b3 ♕f7-f3+ ♔c6-d7 g6-g7 ♖h8-e8 a2xb3 ♔d7-e6 ♕f3-e4+ ♔e6-f7 ♕e4xe8+ ♔f7xg7 ♕e8-d7+ ♔g7-h6 ♕d7xd6+ ♔h6-h5) +14.15/34 757)

score for White +14.15 depth 34.

Premium Chessgames Member
  agb2002: White has a bishop and a knight for the bishop pair.

Black threatens Qxa5.

White can open the f-file with 27.fxg6, threatening Qf2:

A) 27... Qxa5 28.Qf2

A.1) 28... fxg6 29.Qf7+ Kd8 30.Qxd7#.

A.2) 28... Kd8 29.Bb6+ wins.

A.3) 28... f5 29.gxf6 looks winning. For example, 29... Qe5 30.f7+ Kd8 (30... Ke7 31.Qh4+ Qf6 32.Bg5 wins) 31.g7 Bxg7 32.Rxg7 Qxg7 33.f8=Q+ wins.

B) 27... fxg6 28.Qf2 wins (28... Rb8 29.Qf7+ Kd8 30.Qxf8+).

C) 27... f5 28.Nb3 followed by g7 is probably simplest.

Premium Chessgames Member
  agb2002: I missed 28... 0-0-0 in my line A but after 29.Rxf7 White is winning. For example, 29... Be8 30.Rxf8 Bxg6 31.Bb6.
Oct-08-22  parch: Gone for 27.fg6 Q:a5
(27...f6 28.g7 B:g7 29.R:g7 0-0-0 30.Q:b4 )

28.gf7+ Kd8 29.g6 Qe5 30.Bd4

missed 29...Qb5 30.Qf2

Oct-08-22  Cheapo by the Dozen: I didn't see all the way to the b6-based mate threats at the end of the game line, and went with 28 Qf2 instead. That works too.
Premium Chessgames Member
  chrisowen: I quick doghouse it's fxg6 abridge lains duh it's bag click a fad abc claw it's v affable packforth blubb von booted bluffed zelda it's fxg6 duck;
Oct-08-22  thegoodanarchist: Got the first move for white, but didn't expect black to take the knight.
Oct-08-22  whiteshark: It seems that Black was already lost after <26.f5>:

click for larger view

Black to move

1) +8.58 (36 ply) 26...Rc8 27.fxg6 fxg6 28.Qf2 Qxc2+ 29.Qxc2 Rxc2 30.Kxc2 Be7 31.a3 e5 32.Kc3 Bf8 33.b4 Be7 34.Rg7 Bh3 35.Nb3 Be6 36.Rxg6 Bf7 37.Rh6 Kf8 38.Na5 Kg8 39.Kd3 Bf8 40.Rf6 Ba2 41.Kc2 Bf7 42.Kc3 Be7 43.Rf2 Bf8 44.Kd2 Bg6 45.Kd3 Be7 46.Nc6 Bf8 47.Rf6 Bf7 48.Nd8 Bc4+ 49.Kc2 Be7 50.Rg6+ Kf8 51.Nc6 Kf7 52.Rh6 Bf8 53.Rf6+ Ke8 54.Kc3 d5 55.exd5

2) +10.74 (35 ply) 26...Bc6 27.fxe6 Bxe4 28.Rxf7 Qc8 29.Qf2 Qxe6 30.Rxf8+ Ke7 31.Rf6 Qd5 32.Bc1 Bf5 33.Nb3 Be4 34.Bf4 Qd1+ 35.Nc1 Qxc2+ 36.Qxc2 Bxc2+ 37.Kxc2 Kd7 38.Nb3 Rc8+ 39.Kb1 Rc4 40.Bxd6 b4 41.Nc5+ Kc6 42.Nxa6 b3 43.Bf4+ Kd5 44.axb3 Rc8 45.Rxg6 Rh8 46.Rf6 Rh4 47.Nc7+ Ke4 48.g6 Rh1+ 49.Kc2 Rg1 50.b4 Kd4 51.Kb3 Rg2 52.Ne6+ Kd5

3) +11.04 (35 ply) 26...gxf5 27.g6 fxg6 28.exf5 Rc8 29.fxg6 Qxc2+ 30.Qxc2 Rxc2 31.Kxc2 e5 32.Rh8 Bf5+ 33.Kd2 Ke7 34.Nc6+ Ke6 35.Rxf8 Bxg6 36.Ra8 Be4 37.Rxa6 Kd7 38.Na5 Bd5 39.Bh6 Bxa2 40.Bf8 Ke6 41.Bxd6 Kd5 42.Bb4 e4 43.Rd6+ Ke5 44.Rb6 Kd5 45.Ke3 Ke5 46.Rxb5+ Kf6 47.Rb6+ Ke5 48.Nc6+ Ke6 49.Kxe4

6.0 minute analysis by Stockfish 11 v064

Oct-08-22  alshatranji: 28.Qf2 is possible too. Strange thing: Stockfish recommends 28.gxf7+ at +8.35; but if you play 28.Qf2, it gives it +10.86.
Premium Chessgames Member
  paulalbert: I also thought Qf2 was the first move to play but certainly did not see all the variations.
Oct-08-22  TheBish: I too had 28. Qf2, as 28...f5 29. gxf6 is crushing.

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