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Victor Plotkin vs Vladimir Drkulec
Oktoberfest I (2008), Kitchener, Ont., rd 3, Oct-18
Italian Game: Italian Variation (C50)  ·  1-0



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Kibitzer's Corner
Premium Chessgames Member
  tpstar: 1) 27 ... Kg7 28. Ne6#

2) 27 ... Qh6 28. Nxf7+

3) 27 ... Nh6 28. Nxf7+! Qxf7 29. Qxh6+ Qh7 30. Qf6+ Qg7 31. Qxg7#

Nice attack out of a quiet opening.

Dec-26-18  ChessHigherCat: I was thinking this was too tough for a Tuesday, when I suddenly remembered it was Wednesday!

24. Nf5+ gxf5
(...Kh7 25. Ng5+ Kh8 26. Qh4+ and mate)

25. Qxf4+ Kh7 26. Ng5+ Kh8

(...Kh6 27. Qh4+ Kg7 28. Ne6#)
(...Kg6 27. Qh4 Nh6 28. Ne6+ Ng4+ 29. hxg4 Rh8 30. gxf5#)

27. Qh4+ Nh6 28. Nxf7+ Qxf7 29. Qxh6+ Qh7 30. Qf6+

Dec-26-18  Walter Glattke: 24.Nf5+ Kh7 25.Ng5+ Kh8 26.Qh4+ as descrived 26.-Nh6 27.Qxh6+ Kg8 28.Qh7+ Kf8 29.Qh6+ Kg8 30.Nh7 Qxf5 31.exf5 Re6 32.fxe6 fxe6 mating, e.g. 33.Rxg6+ Kf7 34.R2xe6 Rg8 36.Ng5#/Rgf6#/Qf4# … 27.Nxh6 Kg7 28,Ng5+ Kg8 (28.-gxf5 29.Ne6++#) 29.Qh7+ Kf8 30.Qh6+ Kg8 31.Nh7 as above or 28.-Kf8 29.Qh6+ Kg8 30.Nh7 as above or 30.-Rxe4 31.Nxf6# /30.-Qg5 31.Qg7#
Dec-26-18  mel gibson: I picked Ng5 and it it's the wrong move.

Stockfish 10 agrees with
the text but it's not a quick checkmate:

24. Nf5+

(24. Nf5+ (♘d4-f5+
g6xf5 e4xf5 ♖e8xe2 ♕g4xf4+ ♔h6-h7 ♘f3-g5+ ♔h7-g7 ♘g5-e4+ ♔g7-f8 ♘e4xf6 ♘g8xf6 ♕f4xd6+ ♔f8-e8 ♕d6xf6 ♗b6-c7+ ♔h2-h1 ♖a8-d8 ♖g1-g8+ ♔e8-d7 ♕f6xf7+ ♖e2-e7 ♕f7-d5+ ♔d7-c8 f5-f6 ♖e7-d7 ♖g8xd8+ ♖d7xd8 ♕d5xc5 ♔c8-b8 f6-f7 ♗c7-d6 ♕c5xd6+ ♖d8xd6 f7-f8♕+ ♔b8-c7 ♕f8-f4 ♔c7-d7 ♕f4-f5+ ♔d7-d8 ♕f5-a5+ ♔d8-e7 ♕a5xa7 ♖d6-d7 ♔h1-g2 ♔e7-f7 b2-b4 ♔f7-g8 ♕a7-b8+ ♔g8-g7 ♕b8-e5+ ♔g7-f8 a2-a4 ♖d7-g7+ ♔g2-f1 ♖g7-f7 ♕e5-d4 ♔f8-e7 a4-a5 ♔e7-e8 c4-c5 ♔e8-f8 ♕d4-d6+ ♔f8-g8 ♕d6-e5 ♔g8-f8 ♕e5-b8+ ♔f8-g7 ♕b8-d6) +12.18/42 65)

score for White +12.18 depth 42

Dec-26-18  saturn2: I saw 24.Nf5+

24..gxf5 25. Qxf4+ Kh7 26. Rg5 and

24..Kh7 25. Ng5+ Kh8 26. Qh4+

Dec-26-18  saturn2: ah...26 Ng5 is required
Dec-26-18  AlicesKnight: What about 24.Nf5+ - if ...Kg7 then Ng5+ wins the Q or mates, so ... gxf5, but 25.Qxf4+ and rapid success again for White. Let's see - yes!
Dec-26-18  et1: Do you have an eval for Ng5 ?
Dec-26-18  schachfuchs: My solution went like this:
24.Nf5+ gxf5 25.Qxf4+ Kh7 26.Ng5+ Kh8? 27.Qh4+ Kg7 (27...Nh6 28.Nxf7+ Qxf7 29.Qxh6+ Qh7 30.Qf6+) 28.Ne6 double check and # but this was "too good to be true" -
among others for
26...Kg7 27.Ne6++ Kh8 and how does white make progress?
Premium Chessgames Member
  agb2002: White has a knight for a bishop.

Black thratens cxd4.

The pawn on g6 blocks the action of the white queen and the rook on g1. The black queen protects f4. Therefore, 24.Nf5+:

A) 24... gxf5 25.Qxf4+ Kh7 (25... Kh5 26.Rg5+ and mate next) 26.Ng5+

A.1) 26... Kh6 27.Qh4+ Kg7 (27... Kg6 28.Nh7+ Qg5 29.Rxg5#) 28.Ne6#.

A.2) 26... Kh8 27.Qh4+

A.2.a) 27... Kg7 28.Ne6#.

A.2.b) 27... Qh6 28.Nxf7+ Kh7 29.Nxh6 + - [Q+2P vs b+n].

A.2.c) 27... Nh6 28.Nxf7+ Kh7 (28... Qxf7 29.Qxh6+ Qh7 30.Qf6+ Qg7 31.Qxg7#) 29.Qxf6 and mate soon.

A.3) 26... Kg7 27.Qh4

A.3.a) 27... Kf8 28.Nh7+ wins decisive material.

A.3.b) 27... Nh6 28.Nh7+ as above.

A.3.c) 27... Qh6 28.Ne6+ Kh8 (28... Kh7 29.Rg7+) 29.Rxg8+ Kxg8 (29... Kh7 30.Rg7+; 29... Rxg8 30.Qxh6#) 30.Qxh6 Rxe6 (30... fxe6 31.f3 followed by Rg2 with a winning attack) 31.Qg5+ Rg6 32.Qxf5 + - [Q+2P vs r+b].

A.4) 26... Kg6 27.exf5+

A.4.a) 27... Qxf5 28.Nh7+ and White captures the black queen with check, not allowing Rxe2.

A.4.b) 27... Kh6 28.Qh4+ Kg7 29.Ne6#.

A.4.c) 27... Kg7 28.Rxe8 Rxe8 29.Ne4+ wins decisive material.

A.4.d) 27... Kh5 28.Qg4+ Kh6 as in A.4.c.

B) 24... Kh7 25.Ng5+ Kh8 (25... Qxg5 26.Qxg5 gxf5 27.Qg7#) 26.Qh4+ Nh6+ 27.Qxh6+ Kg8 28.Nh7

B.1) 28... Qh8 29.Rxg6+ fxg6 30.Qxg6+ Qg7 31.Qxg7#.

B.2) 28... Qe5 29.Rxg6+ fxg6 31.Qxg6+ Kh8 32.Nf6

B.2.a) 32... Re7 33.Qh6+ Rh7 34.Qxh7#.

B.2.b) 32... Qxf6 33.Qxf6+ Kg8(h7) 34.Qg7#.

B.2.c) 32... f3+ 33.Kh1 (33.Kg1 Rg8 - +) doesn't change anything (33... fxe2 34.Qg7(h6)#).

Dec-26-18  Mayankk: I got the game sequence quite fast but I kept wondering if there is a possible escape route via g7 for the Black King.

In all such tactical mating attacks, skill lies in blocking all escape routes. For people with short attention span like me, it usually gets too much to methodically calculate all such escapes...

Dec-26-18  wtpy: So this is not a typical Wednesday problem because the crucial line is 24 Nf5+ gf5 25 Qf4+ Kh7 26 Ng5+ Kg7 27 ef5 clearing the e4 square for a discovered check by the white knight and making the rook on e2 immune from capture. Stockfish agrees that this is strongest line. Thank goodness I solved this in the morning after coffee otherwise I am sure I wouldn't have gotten it particularly after too much Christmas cheer last night.
Premium Chessgames Member
  thegoodanarchist: OK everyone, rate this pun:

<Plotkin to take over>.

Scale of 1 to 5

Dec-26-18  wtpy: So agb202's answer to 26.. Kg7--27 Qh4 also wins though white is left with a little more work to do after black's best reply 27..Qh6, but the queen and two pawns should win against the rook and piece.
Dec-26-18  cormier:

Analysis by Houdini 4 d 22 dpa

1. = / + (-0.47): 13...a5 14.Ng3 a4 15.Nf5 Ne7 16.N3h4 Ng6 17.Nf3 Qe8 18.Re1 Qc6 19.Qd3 Rfe8 20.Rb1 Ba7 21.Re2 Bc5 22.Bd2 Qd7 23.Rd1 Ne7 24.N3h4 Nxf5 25.Nxf5

2. = / + (-0.43): 13...Qd7 14.Qd3 Qe6 15.Ng3 Nd7 16.b3 Qf6 17.Nf5 Nc5 18.Qc2 Ne6 19.b4 Kh8 20.Kg2 Ne7 21.Be3 Bxe3 22.fxe3 a5 23.Rd1 axb4 24.cxb4 Ra3 25.Rd3 Rfa8 26.Rxa3 Rxa3

Dec-26-18  cormier:

click for larger view

Analysis by Houdini 4 d 23 dpa

1. = (-0.07): 13.Ng3 Ne7 14.a4 a5 15.Nh4 Ng6 16.Nhf5 Nf4 17.Re1 Ne6 18.Qf3 Kh8 19.Rd1 Bc5 20.Nh5 Nxh5 21.Qxh5 Qf6 22.Qf3 Ra6 23.Rb1 Rb6 24.b3 Re8 25.Qg3 Nf4 26.Bxf4 exf4

2. = (-0.09): 13.a4 a5 14.Qc2 Bc5 15.Ne3 Bxe3 16.Bxe3 b6 17.Rd1 Qe8 18.b3 Ne7 19.Nh4 Qc6 20.Bc1 Rfe8 21.Nf3 Rad8 22.Qd3 Qb7 23.Bb2 Nd7 24.Ba3 Rf8 25.Qe3 f5 26.Qd3 fxe4 27.Rxe4

3. = (-0.12): 13.Qc2 Nh5 14.Ne3 Bxe3 15.Bxe3 b6 16.Rd1 Qe7 17.Qd3 Nd8 18.g3 Nf6 19.Kg2 a5 20.Nh4 Nc6 21.Nf5 Qd7 22.f3 Ne7 23.Nxe7+ Qxe7 24.Red2 Qe6 25.b3

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