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Zoltan Varga vs Zoltan Gyimesi
Hungarian Championship (2005), Kazincbarcika HUN, rd 3, May-12
Four Knights Game: Spanish. Rubinstein Variation (C48)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
May-02-09  sfm: A move like 20.a3 must be made to keep the white-squared bishop on the a2-g8 diagonal. But what a terrible move to make.
May-02-09  dghins: Bd6 followed by a3 also wins
May-02-09
Premium Chessgames Member
  Gilmoy: Funny: I saw it in "a flash", like a fantasy variation unfolding. I belly-laughed when I played through the game.

- Our Bb4 is attacked. This is a "Very Difficult". Hence, either 23..Bxc3 (blah), or a non-Bb4 move :)

That's not entirely flippant -- our non-Bb4 mover has a "free" tempo (actually we are offering a piece to buy a tempo). Hence, the non-Bb4 mover is a <Cat Who Walks Through Walls> -- which can mess up a defense!

- So which cat is friskiest? Ah, <23..a3> blows up the Q-side with check.

- In "a flash", I thought, And of course the point is <25..Rxa2+>. From start to here took me ~3 seconds total!

Intuition told me it was the right track. With open a, Black has a triangle pattern coming. White's Rooks cannot defend the a2-g8 diagonal, and White's Q is comically stranded.

Plot the "unplugged" positions after <25.Kxb2> and <26..Qd5+>, and we can all see Black's KR coming. White could normally balance that with Ra1, hence most of us probably haven't already extracted any useful pattern out of this kind of sac (except to note that it's insufficient). This position is the exception -- Black's <19..e4> subtly cramps White's K-side, and it's just enough to invert the eval. Now that is a datum we can generalize: <congestion before the sac>. Git there furstest with the onlyest!

May-02-09  Terry McCracken: <An Englishman: Good Evening: I got this one right?! It didn't seem possible; the critical move is not the first move of the combination, it's the fifth, and it seemed a bit too slow. But it turns out well; if 28.Kc2,Qc4+: 29.Kd2,Qxb4+: 30.Ke2,Bc4+ is embarrassing.>

The fifth move, (Be6!) is *key* and demonstrates how weak the White Squares are where the King dwells.

A lovely but necessary stroke.

May-02-09  zb2cr: I got the first few moves, but instead of the actual game's 28. Rd2, I analyzed 28. Kc2, Qb3+; 29. Kd2, Qxb4.

Now if White continues to try to run away with 30. Ke2, Bc4+; 31. Rd3 (forced), Bxd3+; 32. Kd1, Ra8 and mate soon.

If White comes back with 30. Kc2, Ra8; 31. Rc1, Bb3+; 32. Kb2, Bd1#.

May-02-09  WhiteRook48: I was thinking 23...Rb8 to lead a mating attack on the b-file
May-02-09  felixd: I saw immediately a3 and it took me like 5 seconds of more to see Qd5...Really nice day for me =)
May-02-09  withingrace: strangely enough i got this one as well, i used a similar combination against an expert rated player earlier this month.
May-02-09  cheeseplayer: I took a look at the board. Realized it is so difficult for black to win. Then while reaching to click on the game button.... ahaaa... a3! and the following moves exactly the same!

bad week though 3/6 so far!

May-02-09  beenthere240: <an englishman>I agree that 5. Bd3 does look funny, since it would appear to block the pawn develoment etc, but I've been seeing this type of move more and more often by both white and black: it's often followed by something like c3..Bc2 and d4. I suppose it's a switch on the common path of the LSB in the Ruy, b5, a4, b3, c2. If you look at the position after say move 9, you'd never have thought that move 5 was played, the position looks absolutely typical of a 4 knights game.
May-02-09
Premium Chessgames Member
  whiteshark: aaah, the Zoltans of swing...
May-02-09  Utopian2020: Knowing this is a puzzle, does a queen sac work? No. How about sac'ing the bishop? Might as well take the pawn with check. Can't stop now, throw in the rook and check. Hmmmm, look what the cat drug in, an exposed king with all support out of postion. Now what? Gotta keep checking, Ra8+ or Qd5+, looks like Qd5+ wins. I'd probably never see this in a real game.
May-02-09
Premium Chessgames Member
  johnlspouge: Saturday (Very Difficult)

Z Varga vs Z Gyimesi, 2005 (23...?)

Black to play and win.

Material: Even. The White Kc1 has 3 legal moves, 2 of them on the b1-h7 diagonal of Bf5 behind Pe4. The White Pc3 attacks Bb4. Black has a battery Qd7 and Bf5 attacking Ph3, defended by Qg2 and Rh1. The Black Ra1 backs Pa4, which is ready to break into the White K-position with Pa4-a3. The Black Rf1 defends Pf7 against Ba2 and requires activation.

Candidates (23): a3

23a3 (threatening 24axb2+)

Actual defense of Pb2 decoys the White Kc1 into enemy fire.

(1) White can accept the sacrifice of Bb4:

24.cxb4 axb2+ (threatening 25Rxa2)

White cannot afford to lose Ba2 without compensation. The exposed White Kc1 is worth much more than a P, given that the Black heavy pieces are closer to Kc1 than the White.

(1.1) 25.Kxb2

<[Here, I considered 25Rxa2, but thought the attack died, because I missed 27Be6. Toga gives best play from my choice 25Qa7 as

25Qa7 26.Bb3 Qa3+ 27.Kc2 Rfb8 28.Ra1 Qxb4 29.Rab1

and White holds Black to a dead draw.]>

(1.2) 25.Kb1

<[Here, I gave 25Be6, which wins handily, but the best move is again 25Rxa2.]>

(2) White can capture Pa3:

24.bxa3 Bxc3 then 25Rxa3

There might be better moves <[Toga says not]>, but Black wins at least a P while opening up the White Kc1.

(3) On other moves, after 24axb2 White chooses between transposition into the above variations after a capture or loss of material in a bad position.

May-02-09
Premium Chessgames Member
  johnlspouge: < <nuwanda> wrote: many ways lead to Rome... [snip] And after 23...a3 24.cb ab 25.Kxb2, though seeing 25...Rxa2 as the best, he clearly confirms <dzechiel>'s 25...Qd6 by giving it -5.70 >

Toga confirms <dzechiel>'s suggestion as an alternative handy win.

May-02-09
Premium Chessgames Member
  Jimfromprovidence: What could white have done differently to stop the pawn advance? Maybe 18 a4 instead of d4 was better?


click for larger view

May-02-09  David2009: It is astonishing how quickly White's position collapsed from move 17 onwards.
May-02-09  DarthStapler: I considered the first 4 moves but decided on something else
May-02-09  Big Easy: I got it up until 25... Rxa2. I thought black would play 25... Qa7.
May-02-09  PinnedPiece: I wonder how 28.Kc3 would have changed things.

.

May-02-09  walnutparkk: OK, dumb question of the day; is the implication here that the player is projecting the end of the game? In other words is this a play from scrimmage, or is Mr. Gyimesi creating this on the fly?
May-03-09  butilikefur: I saw 23...a3 24. cxb4 axb2+ 25. Kxb2 Rxa2+ 26. Kxa2 Qd5+ 27. Kb2 but then deviated from the main line with 27...Qc4

I cannot see any problem yet with my analysis of the variations that follow - 28. Bd2 (28. f3 Ra8 wins)

28...e3 29. Rc1 (29. Bc3 [29. Bxe3 or 29. fxe3 is met by 29...Qc2+ and 30...Ra8+ mate] 29...Ra8 30. Ra1 Qe2+ 31. Kb3 Bc2+ and mate follows)

29...Qe2 looks winning for Black -> for example, 30. Rd1 exd2 31. Ra1 Qc4 32. Rxd2 Qxb4+ 33. Kc1 Qc3+ wins a rook.

May-03-09  patzer2: For an improvement over 5. Bd3?! see 5. Nxe5 as played for the win in Short vs E L'Ami, 2009.
May-03-09  butilikefur: Oops.. missed 28. Qf1.
May-03-09  ruzon: Again, I see much of the line, but I play 26. Ra8+ instead of Qd5+ or Qd6, costing me the win.
May-03-09  newzild: Like some of the other posters today, I also got this quite quickly - even though Saturdays are usually challenging for me. I'm pretty sure I'd play 23...a3 on instinct in a blitz game - if I had 10 or 20 seconds' thinking time, that is!
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