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Boris Gulko vs Michael Adams
KasparovChess Grand Prix (2000), YOUR-CZPL0PP1H9
Nimzo-Indian Defense: Normal Variation. Botvinnik System (E49)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Given 36 times; par: 58 [what's this?]

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sac: 37...Ne3+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Jun-14-06  Castle In The Sky: An easier Wednesday puzzle,easier than Monday's.
Jun-14-06
Premium Chessgames Member
  kevin86: I answered this one. Black lends his knight,so that the queen and rook can penetrate into black's position.
Jun-14-06  DoctorChess: 3 for 3!
Jun-14-06  Paladin88doug: This was the first move I looked into...I knew it had to be the one. Here is the continuation I saw...Ne3+ fxe3 Rb2+ Kh3(if the king goes to the first row, he is swallowed whole) Qxf3. If Kh4, Rh2#. If the king remains in his place, Qxh5#. Took me a little while to see that this is possible, I kept seeing after Qxf3, white playing Qc8+ to push around Black's king, but after Kg8, white cannot play Qc2+ due to Rxc2!!!
Jun-21-06  patzer2: Black's 37...Ne3+! uses a Knight Fork as a clearance move to free the second rank for his Rook's deflection to win back a Knight and prepare a mating attack.
Dec-13-17  patzer2: Finding 37...Ne6+! was easy 11 years ago, and it's still easy as today's Wednesday puzzle solution.

White's decisive error was 37. Ra5? allowing 37...Ne3+ -+ (mate-in-six, Stockfish 8). Instead, 37. Qa2 ⩱ (-0.42 @ 36 ply, Stockfish 8) keeps White in the game.

Dec-13-17
Premium Chessgames Member
  drollere: 38. pxe3 Rb2+, 39. Kh3 Qxf3, 40. d5 Qxh5+, 41. Qh4 Qxe5
Dec-13-17
Premium Chessgames Member
  drollere: <For the record, it might go: 39. Kh3 Qxf3 (threatening ...Qxh5#), 40. Qc8+ Kh7, 41. Qd8 (to block at h4?)> ... f6
Dec-13-17
Premium Chessgames Member
  An Englishman: Good Evening: Nice little trap with 36...Qa8; doesn't seem to do anything except maybe perhaps threaten to push the a-pawn.
Dec-13-17
Premium Chessgames Member
  agb2002: The material is identical.

White threatens Q(R)xa6.

The black queen x-rays the white knight and king and b2 is available for the rook. These details lead to 37... Ne3+ 38.fxe3 (else 38... Nxc4) 38... Rb2+:

A) 39.Kf1 Qxf3+ 40.Ke1 (40.Kg1 Qg2#) 40... Qf2+ 41.Kd1 Qd2#.

B) 39.Kg1 Qxf3 40.Qf1 (40.Qc8+ is also useless) 40... Qxg3+ and mate next.

C) 39.Kh1 Qxf3+ 40.Kg1 Qg2#.

D) 39.Kh3 Qxf3 40.d5 (40.Kh4 Rh2#) 40... Qf4+

D.1) 41.Kh4 Rh2#.

D.2) 41.g4 Qf3+ 42.Kh4 Rh2#.

D.3) 41.Qg4 Qf1+ (much better than 41... Rh2+ 42.Kxh2 Qxg4) 42.Kh4 Rh2+ 43.Qh3 Qxh3#.

Dec-13-17
Premium Chessgames Member
  FSR: No way White's king survives after 37...Ne3+ 38.fxe3 Rb2+ 39.K moves Qxf3.
Dec-13-17  saturn2: This one springs into the eye immediatly. The knight checks and then the roads for rook and queen are open.
Dec-13-17  paavoh: A Tuesday puzzle at most.

37...Ne3+ 38.fxe3 Rb2+ followed by 39.- Qxf3 and mate should be imminent.

I liked very much the way Adams controlled the c8 entry point and prevented access with 30.- Kh7 and 32.- Qb7.

Also, the ease he claimed a supersolid structure from the Nimzo opening is something to remember and emulate.

Dec-13-17  Aware: Definitely not a Tuesday puzzle. It's a mate in 7. Come on now!
Dec-13-17  AlicesKnight: Looks like 37....Ne3+ forcing 38.fxe3, when ...Rb2+ drives away the K from protecting the N, and 39....Qxf3 leaves White hopeless. Let's see - yes.
Dec-13-17  lost in space: Easy for a Wednesday.

37...Ne3+ 38. fxe3 Rb2+ 39. K(any legal move) Qxf3 and mate follows soon

Dec-13-17
Premium Chessgames Member
  malt: Pointing towards 37...Ne3+ 38.fe3 Rb2+
the king ducks behind the g pawn 39.Kh3 (39.Kg1 Q:f3 40.Qf1 Q:g3+ 41.Kh1 and #)
39...Q:f3 40.Qf4 Q:h5+ 41.Qh3 Qf5+
42.Qg3 (42.g4 Qf3+ 43.Qg3 Qh1+ )
42...Qf1+ 43.Kh4 Rh2#
Dec-13-17
Premium Chessgames Member
  whiteshark: <37...Ne3+ 38. fxe3 Rb2+>, and that's it. Nice royal fork tactic.

--> Game Collection: 665_Tactical motif ROYAL FORK

Dec-13-17  JonKing: Pretty mondayish. :D
Dec-13-17  Cheapo by the Dozen: I'm OK with this being a Wednesday puzzle.

It's super-obvious that Black can try the combination, not hurt himself by it, and have nasty threats. It's also super-obvious that he has no better alternative.

But that it's really a win requires a bit of calculation.

Dec-13-17
Premium Chessgames Member
  WorstPlayerEver: Another tough one.

37... Nxe3 38. fxe3 Rb2+ 39. Kh3 Qxf3 40. Qc8+ Kh7 41. Qd8 Qf5+ 42. g4 Qf3+ 43. Kh4 Rh2#

Dec-13-17  gofer: Okay, <Wednesday> easier than <Tuesday> and <Tuesday> easier than <Monday>. I think I am going to like <Sunday> this week!

<37 ... Ne3+>
<38 fxe3 Rb2+>

39 Kh1 Qxf3+
40 Kg1 Qg2#

39 Kf1 Qxf3+
40 Ke1 Qf2+ (Kg1 Qg2#)
41 Kd1 Qd2#

39 Kg1 Qxf3
40 Qc8+ Kh2
41 Qc2+ Rxc2
43 Any move Qxg2# (Kh1 Qh2#)

39 Kh3 Qxf3
40 Qc8+ Kh2
41 Qc2+ Rxc2
43 Any move except Kh4 Qxh5# (Kh4 Rh2#)

~~~

Hmmm, must have missed something, everyone is saying its a mate in 7, but I only made it 6, maybe there is a different order to the spite checks...

Dec-13-17  patzer2: <gofer> Stockfish 8 says it's mate-in-six after 37...Ne3+ which apparently makes it mate-in-seven counting the first move of the combination.

One mate-in-seven line goes 37...Ne3+ 38.fxe3 Rb2+ 39.Kh3 Qxf3 40.d5 (diagram below),


click for larger view

40...Qf5+! (not 40...Rb1? 41.Qc8+ Kh7 42.Qc2+ Kg8 43.Qxb1 =) 41.Qg4 Qf1+ 42.Kh4 Rh2+ 43.Qh3 Qxh3#.

Dec-13-17  capafischer1: Gulko fell for a fairly simple tactic
Dec-13-17  Bubo bubo: Black opens the 2nd rank with an indirect exchange of the knights: 37...Ne3 38.fxe3 Rb2+ and 39...Qxf3. White gets mated in any case:

A) If the king returns to the back rank, White has no sufficient defense against Qg2#, e.g. 39.Kf1 Qxf3+ 40.Ke1 Qf2+ 41.Kd1 Qd2# or 39.Kg1 Qxf3 40.Qf1 Qg3+ and mate next move.

B) After 39.Kh3 Qxf3 Black threatens Qxh5#, and since 40.Kh4 Rh2# fails, White can only try 40.d5. But then 40...Qxh5+ 41.Qh4 Qf5+ leads to mate after either 42.Qg4 Qf1+ 43.Kh4 Rh2+ 44.Qh3 Qxh3# or 42.g4 Qf1+ 43.Kg3 Qf2+ 44.Kh3 Qh2#

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