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Boris Gelfand vs Mikhail Vitalyevich Ulibin
URS-ch U25 (1985), Jurmala, Jan-??
French Defense: Tarrasch Variation. Modern System (C03)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
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Apr-30-12  FSR: This has become Game 48 in my Game Collection: Games with notation errors.
Apr-30-12
Premium Chessgames Member
  WinKing: The threat of mate on black's back rank is his downfall. Probably one of the easiest type of mates to miss. I'm sure most of us have succumbed to it at one time or another.

30.Qxd6 Qxd6(if 30...Rxd6 31.Re8#) 31.Rxd6 Rb8(if 31...Rxd6 32.Re8#) <(& white is up rook for pawn)>

A very easy Monday. :)

**********
Gelfand was 17 & Ulibin 14 when this game was played. The game must have been from a junior tournament at Jurmala 85'(Latvia). The Premier Section of Jurmala 85' was won by Tal & Gurevich. I don't know if these events were played at the same time or held separately(different dates?). Maybe someone here knows better than I.

Apr-30-12  SamAtoms1980: Beware the weak back rank!
Apr-30-12  goodevans: 29...Rd8???
Apr-30-12  stacase: My brother taught me Chess as a very small child, and the first mate he showed me was the King in the coffin back rank mate that is the central threat in this puzzle. Yes, that Bishop is indeed free for the taking.
Apr-30-12  marwanredman123: Back Rank Weakness!!
Apr-30-12  viking78: 30.Qxd6
Apr-30-12  dragon player: This week I'm again going to try to finish the week. Last week I was thursday busy and friday almost not at home. Lets have a look. It's monday, which means a queen sac:

30.Qxd6 Qxd6

If 30...Rxd6 31.Re8#

31.Rxd6 Rxd6
32.Re8#

Time to check.

----------

Yes, indeed. I'm going now, it's queen's day today in Holland.

1/1

Apr-30-12  sevenseaman: Tone up your endgame skills. Doing it with B and N is never easy. The first realization ought to be that K has to be driven into the corner of the B held. Here we have the LSB Therefore it must be done only in a8 or h1.


click for larger view

White on play, mates in 7 neatly calculated moves.

Apr-30-12
Premium Chessgames Member
  chrisowen: Good, an gel in a 30.qxd6 it hopes in la cost earned planted weak back

rank for black bishop it dog food for one almost it jeepers creepers a

vivid flight of the black queen toy in her c6.

Apr-30-12  LoveThatJoker: <sevenseaman> 1. Nc5 Kc8 2. Bd7+ Kb8 3. Kc6 Ka7 (3...Ka8 4. Kb6 Kb8 5. Na6+ Ka8 6. Bc6#) and now 2 mating procedures:

a) 4. Kc7 Ka8 5. Kb6 Kb8 6. Na6+ Ka8 7. Bc6#

b) 4. Bh3 Kb8 (4...Ka8 5. Kb6 Kb8 6. Na6+ Ka8 7. Bg2#) 5. Kb6 Ka8 6. Bd7 Kb8 7. Na6+ Ka8 8. Bc6#

LTJ

Apr-30-12  Elo: It is Gelfand Week!
Apr-30-12  sevenseaman: <LoveThatJoker>

<1. Nc5 Kc8 2. Bd7+ Kb8 3. Kc6 Ka7 (3...Ka8 4. Kb6 Kb8 5. Na6+ Ka8 6. Bc6#) and now 2 mating procedures:

a) 4. Kc7 Ka8 5. Kb6 Kb8 6. Na6+ Ka8 7. Bc6#

b) 4. Bh3 Kb8 (4...Ka8 5. Kb6 Kb8 6. Na6+ Ka8 7. Bg2#) 5. Kb6 Ka8 6. Bd7 Kb8 7. Na6+ Ka8 8. Bc6#>

Wonderful; both work. Existence of an alternate line adds to richness of thought.

<gameknot> computer, the source of this puzzle does not accept the sol. b) but that is merely because it is a move longer.

Good work.

Apr-30-12  Blunderdome: So it's been "fixed" to Qc7 -- did someone find a source, or are we just assuming that has to be it?
Apr-30-12
Premium Chessgames Member
  kevin86: black defensive move was not that at all,the rook is tied to be a sentry against a back row mate. If the rook leaves the back row to take or retake the queen,the white rook mates on e8.

Black's piece is lost.

Apr-30-12
Premium Chessgames Member
  kevin86: and more will be lost-at least the queen for a rook-in addition to the piece.
Apr-30-12  Glarange: Can anyone please explain to this novice what purpose serve moves 13 h3 14 g3?! And why Black bishop doesnt take on h3? Thanks! G
Apr-30-12  Patriot: White is up a pawn and the exchange.

30.Qxd6 wins a piece since 30...Rxd6 31.Re8# or 30...Qxd6 31.Rxd6 and black cannot re-capture (31...Rxd6 32.Re8#).

Apr-30-12
Premium Chessgames Member
  peyote: <Glarange:> I think because White gets the pawn or piece back with the initiative: ...Bxh3 Bxh6+
Apr-30-12  stst: Monday Q-sac? Yes again,go for the direct "kill" or "collide": 30.QxB
IF (A).... RxQ, 31.Re8#
IF (B).... QxQ, 31.RxQ, if (i)RxR, 32.Re8#; if (ii)else, White got overwhelming material advantage. Don't see other forced lines of direct kill.
Apr-30-12
Premium Chessgames Member
  WinKing: <Glarange: Can anyone please explain to this novice what purpose serve moves 13 h3 14 g3?! And why Black bishop doesnt take on h3? Thanks! G>

Hi <Glarange> If 14...Bxh3 15.Bxh7+ Kxh7 16.Ng5+ Kg8 17.Nxh3 & whites advantage is all but gone. Maybe black should have taken this path(14...Bxh3) instead of ...Ng6 which doesn't seem to be as good.

Apr-30-12
Premium Chessgames Member
  WinKing: Also <Glarange> if 14...Bxh3 15.Bxa6 Bg4 & black's game is ok(threatens 16...Bxf3 17.Qxf3 Rxa6).
Apr-30-12
Premium Chessgames Member
  WinKing: Whites 14th move g3 was definitely not best. Getting his knight on b3 back into action seems much better 14.Nbd4 Nxd4 15.Bxd4 Nc6 16.Bc3 looks good with the bishops now focusing on black's king. Or just playing 14.Rad1 helping to complete his development looks good also.
Apr-30-12  notyetagm: Game Collection: FORK-OVERLOAD OR HOOK-AND-LADDER TRICK
May-01-12
Premium Chessgames Member
  agb2002: White has a rook, a knight and a pawn for the bishop pair.

Black threatens 30... Bxd1.

The 8-th rank is weak. Therefore, 30.Qxd6:

A) 30... Rxd6 31.Re8#.

B) 30... Qxd6 31.Rxd6 + -.

C) 30... Bxd1 31.Qxc7 + -.

D) 30... Rc8 31.Qxc7 + -.

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