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Tiger Hillarp Persson vs Herman Grooten
"Missing Persson" (game of the day Mar-15-2019)
11th Essent Open (2007), Hoogeveen NED, rd 5, Oct-16
Sicilian Defense: Scheveningen Variation. English Attack (B80)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Apr-05-17  stacase: Too easy for Wednesday.
Apr-05-17
Premium Chessgames Member
  radtop: It's quite a feat to take down a player 217 points above you. Grooten did it with style.
Apr-05-17
Premium Chessgames Member
  ChessHigherCat: <WhiteShark> The best move is <22.Bc4!>, preparing to go to b3 to defend the king, and attacking e6 just as well as from h3. Black is forced to play <22...d5> when we reply with <23.Bb3>."

I was looking at 20. Bc4, two moves earlier. Not only does the bishop protect the white castle better on c4 than on h3 but it seems like a waste of time taking gxf7 directly, it's better to develop the attack first and leave the pawns as a threat. Black can't take the g pawn without weakening the castle anyway.

Apr-05-17
Premium Chessgames Member
  morfishine: <27...Rxb3+> followed by <28...c2+> and Black's Q-B battery comes into play with fatal effect

very nice

*****

Apr-05-17  The Kings Domain: Nice puzzle and good game. Black simply had no escape.
Apr-05-17  Abdel Irada: ∞

<<+> The Remedy For Poverty... <+>>

Black has already sacrificed much, so how is he to get compensation for it?

Easy: Sac one more, and it's mate in four.

<<+> 27. ...Rxb3+!
28. Rxb3▢, c2+!
29. Kxc2 ... >

If 29. Qxc2, Qa1#.

<<+> 29. ...Qc3+
30. Kb1▢, Qxb3+
31. Qb2▢, Qxb2# >

Apr-05-17
Premium Chessgames Member
  patzer2: White's decisive mistake was 27. fxe4? which overlooks Black's winning reply 27...Rxb3+!

White missed a saving resource and a winning opportunity with a surprisingly strong desperado defense, involving the double piece sham sacrifice 27. Bxe6+! Kxe6 (27... Ke7 28. fxe4 Rxb3+ 29. Bxb3 ) 28. Rxd6+! to (+1.87 @ 31 depth, Stockfish 221216) when play might continue 28...Kxd6 29. Bf4+ Be5 30. fxe4 Kc6 31. Bxe5 Qxe5 32. Qe3 Qc5 33. Qxc5+ Kxc5 34. Rxg7 Re8 35. Rxh7 (+ 1.49 @ 26 depth, Deep Fritz 15)

The point of 27. Bxe6+! (diagram below)


click for larger view

is to deny Black the opportunity to play 27...Rxb3+ with a mating attack, due to the defense 28. Bxb3 .

The point of 27. Bxe6+! Kxe6 28. Rxd6+! (diagram below)


click for larger view

is to give White a winning flight square after 28...Ke7 29. fxe4 Rxb3+ 30. cxb3 c2+ 31. Kxc2 Qc3+ 32. Kd1 (diagram below).


click for larger view

P.S.: This means Black's rather desperate game move sacrifice 25...Rxb3+!? is not winning, and probably loses with best play to the desperado defense 26. axb3 Rb8 27. Bxe6+! Kxe6 28. Rxd6+! to . However, in a bad position, 25...Rxb3+!? was an excellent swindle attempt (about as good as anything Black had available). Obviously, 25...Rxb3+!? worked to perfection in this game.

Apr-05-17
Premium Chessgames Member
  patzer2: <ChessHigherCat> Thanks for pointing out another overlooked missed winning opportunity for White with 22. Bc4!

Komodo 10.3 gives 22. Bc4! Nc3+ (22...d5 23. Bd3 dxe4 24. fxe4 ) 23. bxc3 (+3.26 @ 25 depth) as best play.

Apr-05-17  mel gibson: so easy.
Apr-05-17
Premium Chessgames Member
  patzer2: Correction: The point of 27. Bxe6+!
is to deny Black the opportunity to play ...Rxb3+ with a mating attack, due to the defense 27. Bxe6+ Ke7 28. fxe4 Rxb3+ 29. Bxb3 .

Obviously 27. Bxe6+! Rxb3+ is not possible because Black is in check.

Apr-05-17  saturn2: <Walter Glattke: To Saturn: 27...Qa4 is too slow for grandmasters. White is to pieces ahead, he can Play 28.Bxe6+ Kxe6 29.Rxd6+ Kxd6 30.Bc5+ and move the queen then. > Black has 30...KxBc5 He has given 3 pieces for free so he is a piece down.

I know 27 ...Rxb3 is better but my 27..Qa4 was only a reply to someone that there is only one break through.

Apr-05-17  pawndude88: <scholes> in your line after Kc8 fxe4 Rxb3+ fails to cxb3 c2+ Qxc2+. Giving check is the dfference.
Apr-05-17
Premium Chessgames Member
  messachess: Too easy. Almost no puzzle at all.
Apr-05-17  CanITakeThatBack: With a membership to chessgames.com can I move the pieces around on the game and explore different lines that way?
Apr-05-17
Premium Chessgames Member
  WannaBe: <CanITakeThatBack> In theory, you can, but you must use java-enabled browser and set your board to ChessViewerDeluxe II.
Apr-05-17  Pballa: White's 22nd move was a clear error. Black is toast after 22. Bc4.

That said, black's 22nd move was a very nice find. White still holds an edge with correct play, but it's not easy to find.

A better puzzle would be white's 27th move. Finding 27. Bxe6+ followed by 28. Rxd6+ is more difficult for most chess players than the given puzzle, as most players approach puzzles with an "attack" mentality. White stops the mating attack and retains an edge in the endgame due to black's exposed king. There are far too few good defensive puzzles on this site, IMO.

Apr-05-17  stst: <A better puzzle would be white's 27th move. Finding 27. Bxe6+ followed by 28. Rxd6+ is more difficult..>

Good suggestion, esp. to CG!!

Don't just present the game, cut it at some point (no question CG did some homework to have an interesting cut,) and call it a puzzle.

One step back: a puzzle is somewhat different from a problem. While a puzzle embraces a problem, the reverse is not true in general. A puzzle usually adds to a problem at core some additional features, confronting the audience with some form of mystery, confusion, hard to distinguish right from wrong, and got one uneasy, mired, and "puzzled!"

Whereas a problem presents a number of hurdles, demanding a solution, which, of course, may not be apparent at all, too. Well, unless we don't really mind if one means the other.

Enough, one example:
Puzzle: Why do things (or, to that extent, the universe!) exist at all?

Problem: How to find living things beyond the earth?

Apr-05-17  petemccabe: I am Grooten!

You know, if we're looking for a pun.

Apr-05-17  Cheapo by the Dozen: I love Tuesdays!

Oh, wait ... this was actually a Wednesday puzzle. Nice easy one, with a twist that's sure to bring a smile.

Mar-15-19
Premium Chessgames Member
  offramp: The game has a brilliant finale.
Mar-15-19
Premium Chessgames Member
  An Englishman: Good Evening: An astonishing Immortal, deserves a place among the greatest.
Mar-15-19
Premium Chessgames Member
  OrangeTulip: Great game by the author of Chess Strategy for Club Players (New in Chess)
Mar-15-19
Premium Chessgames Member
  Check It Out: IM Grooten
Mar-15-19
Premium Chessgames Member
  cormier:


click for larger view

Analysis by Houdini 4 Depth: 26 dpa done

14...Qc7 15.Kb1 Ne5 16.f4 Nc4 17.Bxc4 Qxc4 18.Rhe1 b4 19.Na4 Qc6 20.b3 Rb5 21.Bg1 d5 22.e5 Bd7 23.Bd4 Rbb8 24.Qe3 Be8 25.Qf2 Qc7 26.Nc5 Rc8 27.Nd3 Bb5 28.h5 Qc6 29.h6 g6 30.Rd2 = (-0.12) Depth: 26 dpa done

Mar-15-19  Patzer Natmas: Great sacrificial game by Grooten! He must've been thinking "I only need two pieces to checkmate..."
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