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Jan-Michael F Nykopp vs Per Erik Manne
Gausdal Int (1981), rd 1
Caro-Kann Defense: Bronstein-Larsen Variation (B16)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Dec-18-13
Premium Chessgames Member
  offramp: A finish showing the advantage of decentralization. White has no piece in the central 49 squares, but he wins easily.
Dec-18-13  Amadori: Arrrgh am I pissed. I got the game line all the way to 29...Ka8 and then convinced myself it can't be right. What if black doesn't go for the bait and plays 26...f5 instead? So I thought about it for another 2 hrs. Now I got a major headache..
Dec-18-13  King Sacrificer: That's the fastest queen i have ever seen! Put me into the list of people missing <Rxb8+>.
Dec-18-13  david ne: 22...rxd4??
Terrible move. Mind you, black`s position doesn`t look good
Dec-18-13  cyclon: At least one line gives White a winning advantage, namely ; 26. Bxe4 and if 26. -Rxe4, follows 27. Qh8+ Kb7 ( 27. -Kd7 28. Rxf7+ etc., or 27. -Qc8 28. Rxb8+ ) 28. Rxb8+ wins.
Dec-18-13
Premium Chessgames Member
  Oxspawn: I was pleased with myself after finding 27. Qh8 but then fixated on trying to make Rxe7 work a move too early dumbly dismissing 28.Rxb8 as "obviously losing". Agree with <ThumbTack>, the end of this game is a thing of beauty - shuttle diplomacy by the queen, without any diplomacy. The black king develops a cricked neck trying to see the next attack coming.
Dec-18-13  zb2cr: Missed this one.
Dec-18-13  morfishine: Two candidates to look at: 26.Rxb8+ forcing with check & 26.Bxe4 also forcing

(1) <26.Rxb8+> 26...Kxb8 (26...Qxb8? 27.Bxe4 Rxe4 28.Qh8+ Kb7 29.Rxf7+ Ka8 30.Qa1+ and White wins) 27.Bxe4 Rxe4 28.Qh8+ Qc8 29.Qxh7 Qc6! and the threat of exposed check saves Black

For me 26.Bxe4 is easier to visualize since 26...Rxe4 allows 27.Qh8+

(2) <26.Bxe4> 26...Rxe4 27.Qh8+ Kb7 28.Rxb8+ Qxb8

<29.Rxf7+> (the point at the end of the combination: the only way Black can secure his Queen is with 29...Ka8; but this allows 30.Qa1+ and mate next move)

*****
PM: Maybe someone can make 26.Rxb8+ work; I couldn't

*****

Dec-18-13  TheaN: Wednesday 18 December 2013

<26.?>

Interesting combination. White is an exchange up and seems to dominate the queen side, but Black was paying attention and is keeping scope on the queen side and center with all of his pieces. Having two pawns for the exchange with an open board, Black may still draw or even win this game if it simplifies it his favor.

White is to move, though. White has to look for salvation on the king side as the queen side is jammed. This seems impossible, but the White Queen can leap over to sufficiently pressure the Black King from the other side.

<26.Bxe4 Rxe4> Black doesn't have reasonable alternatives, will just be a rook down, and this will prove too much.

<27.Qh8+!> yes, from a1 to h8. The King seems to have room a plenty, but two moves lose quickly: after 27....Qd8? 28.Rxb8+! White wins the Queen, after 27....Kd7 28.Rxf7+ Black deliberately allows a king-queen skewer; after 28....Be7 29.Rxe7+! Kxe7 30.Qxh7+ with Qxe4, Black just traded or lost 3 of his pieces, and the Queen alone can't win. Most interesting is:

<27....Kb7 28.Rxb8+!> creating a tempo check on f7 <28....Qxb8 29.Rxf7+ Ka8> otherwise Black loses the Queen. However, here comes the move that will probably stop a lot of solvers, because it is the same move in the combination but backwards. The White Queen returns to her initial spot to dominate over the a-file, now that the pressure on the king side reached a fatal point.

<30.Qa1+! Qa7 31.Qxa7# 1-0>

Dec-18-13
Premium Chessgames Member
  gofer: The first couple are pretty easy, the rest is not...

<26 Bxd4 Rxd4>
<27 Qh8+ ...>

27 ... Qd7 28 Rxb8+

27 ... Kb7 28 Rxb8+ Qxb8 29 Rxf7+

<27 ... Kd7>
<28 Rxf7+ Be7>
<29 Rxe7+ Kxe7>
<30 Ra7! Qxa7>
<31 Qxh7+>

Dec-18-13  TheaN: <gofer> 30.Ra7 Qxa7 31.Qxh7+ is also interesting, the immediate 30.Qxh7+ with Qxe4 is +R, yours is Q vs R. Typically, the latter is probably easier to win than the former, due to the Black Queen being on the board still.
Dec-18-13  WoodPushkin: Greetings:

What should simply be a free bishop in an already winning position (since move 19 according to Stockfish and Critter) becomes a much easier rout for White to initiate upon the Black postion. Sometimes you just gotta let the material go.

26...f5 was a more tenacious though still lost defense. With continued play perhaps leading to this position...

White to move


click for larger view

If your curious the position was arrived at via...

26. Bxe4 (26... f5 27. Ra7 Qd8 28. Bb7+ Kd7 29. Bg2+ Kd6 30. Nf3 Nc6 31. Nxd4 Nxd4 32. Qc1 Qf6 33.Rxh7 Qg6

Enjoy :-)

JAH Love

Dec-18-13  mel gibson: 26....Rxe4 was a mistake allowing the Queen to make a check.

Deep Rybka4 on 5 seconds per move still gives 26 Bx e4 & gives white a checkmate but on move 61.

( Computer played 26... f6 to block the diagonal)

Dec-18-13
Premium Chessgames Member
  Penguincw: First time in a LONG time I'm 3/3 in a week.
Dec-18-13  Nick46: <Phony Benoni: Darn. Figured on 26.Bxe4 Rxe4 27.Qh8+ Kb7, but then fixated on sacking the f1 instead of the a8.> You made my day; making the same booboo as you is almost better than solving the puzzle.
Dec-18-13
Premium Chessgames Member
  kevin86: Watch for the EXTREME power of the queen:To check the king from a1 and h8!
Dec-18-13  Patriot: White is up the exchange for 2 pawns.

I don't remember when I had so much trouble with a Wednesday problem. I would try 26.Bxe4, because with the time spent it's getting a bit unrealistic:

26.Bxe4 Rxe4 27.Qh8+ Kb7 28.Ra1 - what else?

I'm stopping here.

Dec-18-13
Premium Chessgames Member
  agb2002: White has a rook for a bishop and two pawns.

Black threatens 26... Bxa8.

The white queen can resume the attack from h8 after 26.Bxe4 Rxe4 27.Qh8+ Kb7 (27... Qd8 28.Rxb8+; 27... Kd7 28.Rxf7+) 28.Rxb8+ Qxb8 29.Rxf7+ and White wins the queen or delivers mate (29... Ka8 30.Qa1+).

Dec-18-13  Amadori: <WoodPushkin><26...f5 was a more tenacious though still lost defense. With continued play perhaps leading to this position...>

Nice position
34.Qf4+ e5 35.Qh4 Qe8 36.Qh6+ Ne6 37.Rxf5?
Not sure where to go from there

Dec-18-13
Premium Chessgames Member
  whiteshark: A fine combination which I spoiled in the middle due to a lack of visualisation. :(
Dec-18-13  MiCrooks: I like one of the lines after Kd7 Rxa8 (why not it's the point isn't it) then Rxa4! (exclam for at least trying to swindle your way out of the crush). Now if White snaps off gxh4 Qc6+ Rf3 Qxf3++! Of course, Qe8+ and it's all over. Kd6 and now gxh4 (other moves are possible but this ends it). Mate is covered and Black is just down a Rook and an exchange with a naked King.
Dec-18-13  cjgone: Ah, missed the last move. I thought Rf8 was the winning move, but I forgot about the bishop.

qa1 is amazing. Easy to forget how mobile the queen is.

Dec-18-13  brimarern: "Remember, watch the WHOLE board!"
-Bobby Fischer from 'Bobby Fischer Teaches Chess'
Dec-18-13  WoodPushkin: <Amadori><Nice position 34.Qf4+ e5 35.Qh4 Qe8 36.Qh6+ Ne6 37.Rxf5?
Not sure where to go from there>

Greetings:

I saw the continuation as...

36.Rh8

(Stockfish/Critter say 36.Qf6+ Ne6 37.Rd1+ Bd4 38.Rxd4+ exd4


click for larger view

39 Qf5!

I give this exclam because I couln't see it in my head. The human continuation is easier to visualize. Control the fourth rank, continue to harass w/ pins and queen for rook trades. Ideal, working bishop on its diagonal and a back up rook to exchange sac.)

...36.Qe7 37.Rh6+ Ne6 38.Rd1+ Bd4 39.Rxd4+ exd4


click for larger view

40.Qxd4+ Kc7 41.Qe5+ Kd7. 42.Qd5+ ...

ending any hope of the Black queen creating counter play.

Enjoy.
JAH Love

Dec-18-13  Amadori: <WoodPushkin><39 Qf5!>

Winner!
My mistake was 36.Qh6+ when Qf6+ was right there. Also, reluctant to trade the rook for a hapless bishop.

Cheers

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