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Carel van den Berg vs Jan Hein Donner
Hoogovens (1963), Beverwijk NED, rd 16, Jan-26
French Defense: Tarrasch Variation. Chistyakov Defense (C07)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Oct-23-12  stst: It's the Q, not the K, that matters!!
28...... RxB+
29.KxR BxP+
30.K-any QxQ
Losing the Q, W won't last long...
Oct-23-12  Tired Tim: <Abdel Irada> - Thank you for the attractive word play

I wondered if Berg had made a titanic mistake, but decided not to go there

Oct-23-12  newzild: This reminds me of a position from one of my earliest games.

Bill Ramsay - newzild, 1996

Black to play:


click for larger view

28...

Oct-23-12  morfishine: Donner "Ices Berg" with <28...Rxf1+ 29.Kxf1 Bxg2+ 30.Kxg2 Qxb6> and the White Queen is lost

Sadly, I don't see any colorful variations to have fun with today.

Oct-23-12  Swedish Logician: It is nice to see Donner beating Van den Berg for a change. Donner lost two famous and almost identical Scicilian Najdorf games to Van den Berg: C B Van den Berg vs J H Donner, 1965 and another one in 14 moves a decade earlier.

Here Rxf1+ and Bxg2+ should do the trick, though.

Oct-23-12  captainandrewwiggins: i couldn't see this one after a perfunctory glance. i'm disappointed with myself.
Oct-23-12  whiteshark:

28...Rxf1+
29...Bxg2+
30...Qxb6

and that's it.

Oct-23-12
Premium Chessgames Member
  Once: <Abdel Irada: Looking at the game, it seems White's mistake was a premature/overoptimistic 26. Bxa6.>

I don't see it quite the same way. Here's the position after 26. Bxa6 Qd6


click for larger view

In the game, white doesn't spot the real reason for 26...Qd6 and plays 27. Rge3? And we have all seen what happens after that.

But instead, can't white simply retreat his queen to a square where it defends the rook? I see three candidates - Qa5, Qe3 and Qc5. Then consolidate, protect the rooks, close the e file with an eventual Re3, swap pieces and win the endgame.

Fritzie reckons that 27. Qa5 is worth +0.9 - ie white keeps the advantage of the pawn he won with 26. Bxa6. Tne move I wanted to play in human mode was 27. Qe3, which Fritz says leads to a level(ish) position, as does 27. Qc5

I think what lost the game here was that white didn't spot black's tactic. 28. Rge3 is the culprit and not 26. Bxa6

Oct-23-12
Premium Chessgames Member
  Oxspawn: I don’t see a mate, but I do see a winning combination.

<28. Rxf1+
29. Kf1 Bxg2+
30.Kxg2 (or Ke1/e2) Qxb6>

Blacks gains queen, bishop and pawn for rook and bishop – although I cannot see any quick mating attack.

Oct-23-12  francis2012: A simple ♕ trap. ♖xf1+ ♔xf1 (a force move), ♗xg2+ (a discovery) after White takes the Black's ♗ Black simply replies with ♕xb6.
Oct-23-12  David2009: C B Van den Berg vs J H Donner, 1963 Black 28...?

Black picks up Q for R in the sequence 28...Rxf1+ 29.Kxf1 Bxg2 30.Kxg2 Qxb6. Time to check:
====
No surprises today. The good news is that Crafty End Game Trainer (or as I should perhaps learn to call it Crafty EGS for end game simulator) is back on air. Alas, I celebrate its return by twice in a row failing to mate with Q vs R within the 50 moves given by the rules. Bah!

Link to today's Q v R problem: http://www.chessvideos.tv/endgame-t...

Oct-23-12  Abdel Irada: <Once>: Yes. As several other players have pointed out, White can preserve a slight advantage with a retreat such as 27. Qa5.
Oct-23-12  waustad: This one was pretty quick. Quick mating attempts failed so I figured I'd look at the forcing moves and it all fell into place.
Oct-23-12  agb2002: Black is a pawn down.

White should consider reinforcing the back rank before trying a maneuver like Ra5-Ra8+.

The white queen is defenseless. Hence, 28... Rxf1+ 29.Kxf1 Bxg2+ 30.Kxg2 Qxb6 - + [Q vs R].

Oct-23-12  zb2cr: 28. ... Rxf1+; 29. Kxf1 is forced. Now, however, White's King and Queen are in place for a discovered attack. 29. ... Bxg2+ and Black has a material advantage of Queen for Rook.
Oct-23-12
Premium Chessgames Member
  chrisowen: Bin feed rook go bubbling Rxf1+ - He bc6 love fork queen duffed! Vindicate king chime oh at Kxf/ Collect urn it hive ok 28.rge3? Stymmie session to a6 trap rd1! Swede epicentre e3 f1 g2+ 30.0l
Oct-23-12  bhsakar13556: yes as far as i can see there is a lot of play after 28...Q-e3
Oct-23-12  kevin86: Three moves to a win:

1-sac the rook at f1
2-check with the bishop at g2
3-take black's exposed queen.

Oct-23-12  BOSTER: Now I understand,that it was a stupid mistake to leave alone your blonde queen unprotected, without any bodyguard, on the same sharp as a sword, meeting, where the black queen with blue eyes smiling as a swindler, looking at her through one or even couple pieces like through sunny glasses. You had to read your thoughts.
Oct-23-12
Premium Chessgames Member
  gawain: The White queen is going to fall. 28...Rxf1+ 29 Kxf1 Bxg2+ with a discovered attack. White must have been crestfallen as well as queenfallen.
Oct-23-12  Crispy Seagull: Loose queen!

...Rxf1+
Kxf1 Bxg2+
Kxg2 Qxb6

Black's got a queen for a rook and shouldn't have too tough a time mopping up.

Oct-23-12  Jambow: <Loose queen!> Yep that pretty much started the search for tactics to make her my own, men never change do we. ;o]
Oct-23-12  Nullifidian: 28... ♖xf1+ 29. ♔xf1 ♗xg2+ 30. ♔xg2 ♕xb6 leaves Black up a queen for a rook.
Oct-23-12  TheBish: C B Van den Berg vs J H Donner, 1963

Black to play (28...?) "Easy", White is up a pawn.

Black wins the queen with 28...Rxf1+! 29. Kxf1 Bxg2+ 30. Kxg2 Qxb6.

The undefended White queen proves to be his downfall.

Oct-23-12  YoungEd: Score one for the Young Ed Express!
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