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Dennis Wagner vs Predrag Nikolic
Bundesliga (2016/17), Solingen GER, rd 9, Mar-18
Nimzo-Indian Defense: Kmoch Variation (E20)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Feb-22-18  saturn2: I took 17 RxBh7 NxB 18 Qc2
with a possible continuation 18..g6 19 Qh2
Feb-22-18  malt: Started with 17.Bd3 g6 then found
17.Qc2 g6 18.R:h7 N:h7 19.Qh2 Re8 20.Q:h7+ Kf8

Looked at (21.a4/22.Ba3) but went for
21.N:g6+ fg6 22.Q:g6 Qd6 23.Rh8+ Ke7 24.Qg5+ Kd7 25.Bh3+ Re6 26.R:a8

<ChessHigherCat> welcome back

Feb-22-18
Premium Chessgames Member
  agb2002: White has the bishop pair for a bishop, a knight and a pawn.

The black bishop stops Rh8# and White's second rank is open. This suggests 17.Qc2:

A) 17... Bxc2 18.Rh8#.

B) 17... g6 18.Rxh7 Nxh7 19.Qh2

B.1) 19... Kg7 20.Qxh7+ Kf6 21.Qh4+

B.1.a) 21... Kf5 22.Bh3#.

B.1.b) 21... g5 22.Qh6+ Ke7 (22... Kf5 23.Bh3+ g4 24.Bxg4#) 23.Qxg5+ followed by Qxd5, wins decisive material.

B.1.c) 21... Kg7 22.Nh5+ (also 22.Qh6+ Kf6 23.Nh5+ looks winning) 22... Kg8(h6,h7,h8) (22... gxh5 23.Rg1+ Kh6 24.e4+ and mate in two) 23.Nf6+ Kg7 24.Qf4 Rh8 25.Rxh8 Qxh8 (25... Kxh8 26.Qh6#) 26.Nxd5 wins decisive material.

B.2) 19... Re8 20.Qxh7+ Kf8 21.e4

B.2.a) 21... dxe4 22.Nxg6+ fxg6 23.Bh6#.

B.2.b) 21... Ke7 22.Nxg6+ wins decisive material.

C) 17... g5 18.Rxh7 gxf4 19.Qg2+ and mate in two.

Feb-22-18  Carlos0012358: Nice job <agb2002>

Did you consider the continuation 17... Re8?

Feb-22-18  WDenayer: Really good! Qc2!

15.Ra2! Nice.

Feb-22-18  njchess: An embarrassing effort from Black. White takes full advantage of Black's questionable play. I love 17. ♕c2! It's a quiet, subtle move that effectively ends the game.
Feb-22-18  stst: try visual, several lines plausible.
(A)
17.Bd3 g6 (other moves ==> 18.BxB NxB, 19.RxN no escape for K; or if BxB, 18.Rh8#) 18.Bxg6 fxB
19.Ne6 forks Q,R

(B)
17.Qc2/d3 (if BxQ, 18.Rh8#) g6
18.Nxg6 fxN
19.RxB NxR
20.Qxg6+ Kh8
21.QxN#

Feb-22-18  saturn2: Revisiting I see now after<17 RxBh7 NxR 18 Qc2> black has <18..f5> 19 Qh2 Nf6 seems unclear but white can at least get back the exchange by Ne6.
Feb-22-18
Premium Chessgames Member
  whiteshark: <Marmot PFL> It was a voting free for everyone to participate - such being the case a grassroots democratic decision. ;)

My guess it that the people simply like the attack on the h-file.

<11> Oops

Feb-22-18  BOSTER: <PB> <I just wanted to see >. Really white need only 8 moves to clean the second rank, and nobody can't stop it.
Feb-22-18
Premium Chessgames Member
  Big Pawn: With mate on h8 by way of xray with the rook, we have some tactics.

17.Qc2 g6
18.Rxh7 Nxh7
19.Qh2 kg7
20.Ne6+ fe

Opens the seventh rank creating a mating net.

21.Qxh7+ Kf6
22.e5 de
23.Bg5+ Kxg5
24.Qh4+ Kf5
25.fe mate

Feb-22-18
Premium Chessgames Member
  FSR: Very nice game! I only considered the much weaker 17.Bd3. 6...h6 is very rare, and evidently very bad. Opening Explorer
Feb-22-18
Premium Chessgames Member
  Breunor: I went for Nh5 which still wins big with a score over +5. I also looked at Bd3, but unfortunately I didn't look at Qc2! which is the answer to the puzzle.
Feb-22-18  Mayankk: Same as a few other kibitzers. I settled with Nh5 as it seemed to win easily.

Should the white knight be exchanged, black Bishop will soon fall as well and White has a clear victory. Black Bishop can’t move owing to the mate threat on h8. Black can move his knight back to e8, in which case Nxg7 seems to give White a deadly attack as the two Rooks pounce on a hapless Black king.

I didn’t see the Qc2 line but am happy as long as I see another line leading to a clear victory.

Feb-22-18  SpamIAm: White's QR used the Mezzanine Level to reach the kingside.
Feb-23-18
Premium Chessgames Member
  agb2002: <Carlos0012358: Nice job <agb2002>>

Thank you!

<Did you consider the continuation 17... Re8?>

I didn't because it doesn't try to stop neither the invasion nor the material loss (18.Rxh7 Nxh7 19.Qxh7+ Kf8 20.Qh8+ Ke7 21.Qxg7 with the threat Ng6+).

Nov-01-18  landshark: I saw this a few months back and still couldn't figure it out today. Now I see my own post from back in February that I saw it in 10 seconds /: Proof that sharks can't evolve, which is well known, but they aren't immune to devolving
Nov-01-18  newton296: <Breunor: I went for Nh5 which still wins big with a score over +5. I also looked at Bd3, but unfortunately I didn't look at Qc2! which is the answer to the puzzle.>

same here. was surprised when I saw that Qc2 was even better. oh well, Nh5 is still a killer move and winning.

Nov-01-18
Premium Chessgames Member
  al wazir: I chose 17. Nh5 too -- mostly because it's such an unusual idea.
Nov-01-18  Walter Glattke: I found a perpetual with 22.-Kd6 23.Qxd5+ Kf7 24.Qg5+ while 22.-Kd7 loses by 25.Bh3+ Kc7 26.Nxd5+ Kb8 27.Qf4+ or 25.-Re6 26.Bxe6+ fxe6 27.Rh7+ Kc8 28.Qxd8+ Kxd8 29.Rh8+ Kd7 30.Rxa8 this analysis is "Blitz" with little magnetic chess board.
Nov-01-18  Walter Glattke: correction, 23.Bh3+ all following 2 move numbers earlier.
Nov-01-18  saturn2: I did not remember this and took 17 Qd3 today. Qc2 has the advantage that Qh2 can follow but after

17..g6 I thought 18 Rxh7 Nxh7 19 Nxg6 was good enough.

For example
19...Re8 20. Ne5 Nf8 21. Rg1+ Kh8 22. Qf5 Ne7 23. Qf6+ Kh7 24. Qh4#

Nov-01-18  Walter Glattke: J just, 11h after the diagram was shown, for 17.Nh5 as second option. seems to win Bh7.
Nov-01-18
Premium Chessgames Member
  agb2002: I remember this one.
Nov-01-18  PJs Studio: I picked 17.Qg3 and 19.Nxg6 ...I’m such a hack!
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