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Hans Ree vs Zsofia Polgar
Donner Memorial Open (1995), Amsterdam NED, rd 6, Aug-??
Colle System (D05)  ·  0-1


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Given 9 times; par: 38 [what's this?]

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sac: 21...Rf6 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
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Jan-03-12  abuzic: <21...Rf6>
<al wazir: I think the "weekend puzzle" position is more interesting. Does 21...Rf6 really win? 22. hag4 Qxg4 23. Nh2! Nf4+ 24. Kh1 Nxh2 <correct Nxe2> 25. Nxg4 Nxc1 26. Nxf6+ gxf6 27. Bxc1. White has vs. .>

<21...Rf6> deos not win, but 23.Nh2 loses, black takes 24...Qxe2 not <24...Nxe2>, and wins the exchange: 25.Bxe2 Nxe2.

<24.b5> 24.Qd1, 24.Qc2 or 24.Nd2 are better

<26...bxc6> the following line is stronger with rich variations: 26...Qh3+ 27.Ke1 <27.Kg1 Re8> Rxd3 28.cxb7 Rb8 29.c6 Rb3 30.Nd2 Rb6.

<31.Nf3> better was 31.Qd2 Qh4 32.Qe3.

<31...Rb8! 32.Rc2 Rxb2> and if 33.Rxb2 Qc1+ 34.Qd1 Qxb2+.

How could black defend against 31...Rb8?

Jan-03-12  LIFE Master AJ: I tried to make this more complicated than it actually was.

I spent about half a minute "thrashing about" looking at all kinds of silly moves, (even 32...f5?!); before I realized that 32...RxB/b2! followed by 33...Qc1+; will win material for Black. (Timed myself on my wristwatch, one minute, 27 seconds - that includes a quick run-through of my checklist.) [I saw the capture on b2 right away, but my instinct was to take on c5 on the second move.]

One of the training techniques I am trying now is to get myself a preset time limit. (Say, 2-3 minutes, at the most.)

I alternate deep analysis with tries at speeding up ... I have no idea if its working or not, just want to try different twists to vary the schedule. Just like a weight lifter hits a plateau if he does the same training schedule for too long, I think its a good idea to mix things up once in a while ...

Premium Chessgames Member
  cocker: Black emerges only the exchange and a pawn up, but the a- and c-pawns are also likely to fall.
Premium Chessgames Member
  HeMateMe: Hans down, Zsofia could play!
Jan-03-12  LoveThatJoker: 32...Rxb2 33. Rxb2 Qc1+ 34. Qd1 Qxb2 and Black wins the exchange.


Jan-03-12  LoveThatJoker: <morfishine> Excellent post, man! I'll be dropping by your forum around 4 or 5pm EST. See you then!


Jan-03-12  blitzkreig: What about 33 Nd2... white ends up a bishop down but not quite hopeless
Jan-03-12  rubato: 32...Rxb2 33.Rxb2 Qc1+ 34.Qd1 Qxb2
why the hell has the best chessman in the world
about 2800 elo and the best chesswoman "only"
about 2600
Jan-03-12  Patriot: 32...Rxb2 33.Rxb2 Qc1+ 34.Qc1 Qxb2

<LIFE Master AJ> I didn't time myself but it could easily have been 1.5 minutes. It sounds like you became distracted by ideas, which is a point I discussed with Dan H. Sometimes they can help lead us to the right candidate, other times they distract us from our usual approach. Most of my time was looking at how the pieces coordinated and when that didn't reveal anything I used the forcing candidate approach. I looked at Qxf3+, Rxe4, and Rxb2 and then it clicked. Many times if I had followed the "check, capture, threat" approach systematically, I would have found the solution much faster.

I've noticed that whenever I try to solve positions quickly, the "forcing candidate" approach is not as methodical as I would like. Sometimes I'm not looking at all the checks, or I dismiss a strong candidate too quickly, or I'm not looking at candidates in the best order.

Jan-03-12  CHESSTTCAMPS: Black has R+P for the bishop pair, a material advantage, but this is more than offset by white's vulnerable king position in the middle and poor pawn structure. The latter forces the white pieces to protect each other defensively, creating an overload.

32... Rxb2! exploits the overloaded Rc2 and white probably resigns immediately.

(A) 33.Rxb2 Qc1+ 34.Qd1 Qxb2 wins a piece, leaving black up an exchange+pawn with several more white pawns ready to fall.

(B) 33.Nd2 Rxc2 33.Bxc2 Bxc5 (black up exchange+2Ps) is similarly dismal for white.

Time for review...

Jan-03-12  CHESSTTCAMPS: Of course, the first sentence was intended to read ".. material disadvantage,..."
Premium Chessgames Member
  Gilmoy: The opening looks like Colle System Declined :) White overprotects <9.e4> and dares Black to (ahem) squeeze the pimple. Black refutes by refusing, and White gets no center eruption.

<12.Bb2 e5> is oddly poetic: now Black overprotects a pawn advance (to prevent White's KIA-like e5?). The immediate recapture 13.exd5 invites Black's nimble Nxd5-Nf4. But White's plan of <13.a3 14.c4> seems slow: Black gets a bonus tempo, plus the pawn wedge <14..d4>.

Look at White's emasculated BB-pair: this is not what Colle had in mind!!

click for larger view

Hence, Black is probably mad-attack planning now: her position warrants it. After <16.Rac1 17.Nc4> conclude White's autopilot moves, he's defensive: <18.g3 19.Kg2 20.Rg1> just to set up a juggernaut of timidity: <21.h3> and maybe he can draw. But be careful what (piece) you wish for -- your opponent is already looking to "sac" something!!

Jan-03-12  desiobu: 32...Rxb2 33. Rxb2 Qc1+ wins a piece
Premium Chessgames Member
  Penguincw: 32...♖xb2 33.♖xb2 ♕c1+ 34.♕d1 ♕xb2 leaves black up the exchange and a pawn.

click for larger view

Premium Chessgames Member
  Sularus: redemption! feels good =)
Premium Chessgames Member
  kevin86: A comical conclusion-white has to allow a fork and then abandon his rook.

eg, 33 ♖xb2 ♕c1+ 34 ♕d1 ♕xb2 black is up an exchange and a pawn...

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  HeMateMe: <Sularus> Hey! Are you nominated yet? You have a terrific avatar. Get into the Cafe, and get yo'self nominated for best avatar!
Jan-03-12  LIFE Master AJ: <Patriot> Good job.

I am just trying different things.

For about six months, I allowed myself to take as long as I liked and did not worry too much about time. (Now, I am trying a different approach.)

Back in September-October, I did several weeks of solving extremely difficult endgames, doing at least 2-3 every day.

A.) I get bored if I do the same thing all of the time.

B.) Just like a body-builder hits plateau's, I think your brain will get stagnant doing the same old thing all of the time. So ... I try to change things up every few months now - or add a different twist or put the emphasis on a new area.

It's definitely fun and exciting and makes things more challenging. It also keeps me from getting burned out on problem solving.

Premium Chessgames Member
  chrisowen: Must stash this dismantling of the colle glowing appraisal! Cheeky trade down queen instead of finessing lions share knight retreat allows black grounds for regroup final mistake c2 rxb2 and white crumbles sap please 31.Nf3 looks it I am a giant chipmunk when it arrives to pieces check sheez deez chessnuts.
Jan-03-12  newton296: was a little unfocused looking at this one. didn't see any weak squares or mate threats so lowered my ambitions and then I had it. Qc1+ back rank theme to divert the Q after Rxb2


Jan-03-12  newton296: <chrisowen: Must stash this dismantling of the colle glowing appraisal! Cheeky trade down queen instead of finessing lions share knight retreat allows black grounds for regroup final mistake c2 rxb2 and white crumbles sap please 31.Nf3 looks it I am a giant chipmunk when it arrives to pieces check sheez deez chessnuts.>

couldn't have said it any better myself!

Jan-03-12  jackpawn: I found Rxb2, winning a piece, very quickly. Then spent a couple of minutes trying to find something even more decisive. But I'm lazy, my attitude quickly became 'winning the piece is good enough!'. In this case I was right.
Jan-03-12  poachedeggs: My eyes went to the Bishop on B2 and Rook on C2 and realized the Rook was being overworked. Then I saw that if the Rook moves of that file...bad things happen.
Jan-03-12  Nullifidian: Looks like 32... ♖xb2 33. ♖xb2 ♕c1+ 34. ♕d1 ♕xb2 wins.
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