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Chiel van Oosterom vs Peter Hulshof
13th Unive Tournament (Open) (2009), Hoogeveen NED, rd 2, Oct-17
Modern Defense: Standard Line (B06)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Given 15 times; par: 42 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jan-11-11
Premium Chessgames Member
  agb2002: The material is even.

The black king has only one square to move so that invading his castle and bringing more forces into attack might end up in mate. Therefore, 21.Qh8+ Bxh8 (21... Kf7 22.Qxg7#) 22.Rxh8+ Kf7 23.Ng5#.

Jan-11-11  stacase: Havingf a Knight ready to step in at the right time and seal the deal is always nice.
Jan-11-11
Premium Chessgames Member
  gofer: This is the kind of position one dreams about getting in a real game. Black has absolutely nothing in the way of attack and is desparately trying to defend this horrible position. Black probably dreams of playing

21 ... Bxf6
22 exf6 Qh7

with some dim hope that he may recover from this ordeal, but white will simply play Ng5 and add insult to injury...

23 Ng5 Qxh2
24 Rxh2 ...

and now black has to stop 25 f7+ which he can't! So moving the rook seems the only option but this then gives white time to double the rooks on the h file! So black has to throw in the towel and play Re7 (or Ne7) but white still doubles the rooks! It is all to horrid to imagine.

But I digress... 21 Qh8+ Bxh8 (Kf7 22 Ng5#) 22 Rxh8+ Kf7 23 Ng5#

Jan-11-11  Ratt Boy: Perhaps a little obvious, butt I think it's all really pretty--the interplay of the straightmovers on the h-file and the B on the a1-h8 diagonal, combined with the N filling in the one gap at the end. Black could have played ...Nxg6, of course, which wouldn't get matified right away butt would lose the N to 21.Qxh7+, Kf8 (Kf7 is not very good at all) 22.Qxg6. So improvements for Black would've had to come earlier.
Jan-11-11
Premium Chessgames Member
  David2009: C Van Oosterom vs P Hulshof, 2009 White 21?

It is mate in three starting Qh8+. Rewind to move 20 and check with Crafty End Game Trainer:


click for larger view

http://www.chessvideos.tv/endgame-t... After 20 hxg6 20...h6! postpones disaster, but the attack crashes through starting with the thematic 20 f5. Enjoy finding the win by opening the free Internet link above - you are white, drag and drop the move you want to make.

Jan-11-11  zb2cr: Straightforward. The only tricky aspect is finding the move that mates Black after he has seemingly escaped to f7.
Jan-11-11  gmalino: If you don't look for Queen sac's because it is a cgc-thuesday-puzzle, this one is not sooooo easy to see.

21. Qh8+ Bxh8
22. Rh8+ Kf7
23. Ng5#

That's it, but I had to look at this puzzle three times till solving it, whyever.

Jan-11-11  TheTamale: Is this not the exact same puzzle from last week?
Jan-11-11  StevieB: Puzzle?
Jan-11-11  1.e4effort: I like cake and this appears to be a 3 layer delicacy with that fluffy whipped cream icing ... 21. Qh8+...Bxh8 BINGO
22. Rxh8+...Kf7 BANGO
23. Ng5# BONGO
Jan-11-11
Premium Chessgames Member
  kevin86: A usual queen sac and rook mate-but with another step added as the king is able to escape to f7,but no farther.

21 ♕h8+ ♗xh8 22 ♖xh8+ ♔f7 23 ♘g5#

Jan-11-11  randomsac: At first I worried because the black king could escape to f7 after attacking h8. But then I realized that the black king is now trapped in a mating net and an unblockable knight was in just the right spot to checkmate with Ng5#. Black's rook on e8 was a key player for the whole line by blocking the king in.
Jan-11-11  MiCrooks: Seems the trend to a bit more of a challenge in the puzzles has disappeared with the new year. Perhaps they slowly build throughout the year :)?!

Grunt, grunt, mate...

Jan-11-11
Premium Chessgames Member
  DarthStapler: Got it easily
Jan-11-11  Dionysius: Oh rats! Got as far as 22...Kf7 and didn't see that 23 Ng5 is mate. I abandoned the line when I saw that 23 Rh7 doesn't win the Q. Arghh!
Jan-11-11  Ghuzultyy: Not much to analyze in this game, white dominates the game easily after black's mistakes and wins the game with a queen sacrifice.
Jan-11-11  Nullifidian: Got it almost immediately:

21. ♕h8+ ♗xh8 (♔f7 22. ♕xg7#/♘g5#) 22. ♖xh8+ ♔f7 23. ♘g5#

Jan-11-11  old coot: <gmalino> I'm with you. Had this been a Monday puzzle I'd have looked for a Q sac & solved immediately. Instead, I spent a couple of minutes looking for ways to get rid of the Nf8 so I could work on Rh7. Only when I saw that as impossible did I find the answer.
Jan-11-11  WhiteRook48: easy. 21 Qh8+ Bxh2 22 Rxh8+ Kf7 23 Ng5#
Jan-11-11  wals: Rybka 4 x 64

Black Blunder: ply 17 : 7 min :
(+2.17):17...Re8. Best, c5, +1.23.
to stir things up on the queenside.

1. (1.23): 15...c5 16.Bg3 Qd7 17.h5 d4 18.Ne4 Qd5 19.Nfg5 Qxa2 20.Qh2 h6 21.hxg6 Qa1+ 22.Kd2 Qa5+ 23.Ke2 Qa4 24.Nf6+ Bxf6 25.Qxh6 Qxc2+ 26.Kf3 Qd3+ 27.Kg2 Qxg6 28.exf6 Qxh6 29.Rxh6

Black Blunder: ply 18 : 7 min :
(+8.87):19...Nc8. Best,

1. (2.96): 19...Bh8 20.Bxh8 Kxh8 21.hxg6 Nexg6 22.f5 exf5 23.gxf5 Nxe5 24.Re1 Nd3+ 25.cxd3 Qxh2 26.Nxh2 Rac8 27.Rxe8 Rxe8 28.Ng4 Nd7 29.Rh6 Rg8 30.Ne3 d4

2. (3.26): 19...a5 20.Ng5[] Bh8 21.Kb1 Qb7 22.Bxh8 Kxh8 23.Nf7+ Kg8 24.hxg6 Nexg6 25.Nd6 Qa7 26.f5 Nh8 27.Nxe8 Rxe8 28.Ne2 Nf7 29.fxe6 Rxe6 30.Nd4 Rh6 31.Qg3 Rxh1 32.Rxh1 c5 33.Nb5

A sorry game for Black.

Jan-11-11
Premium Chessgames Member
  ajk68: <wals>: I think you meant 15...Re8. Best c5, +1.23?
Jan-11-11  karnak64: The mate was, as the moderator promised, easy to find.

Still not so easy for me to find is the difference between the Pirc, Robatsch,and Modern defenses (there's another name for these as well that I'm forgetting -- Ufimsov?).

Could someone please shine a light in my darkness?

Jan-11-11  BOSTER: <Karnak64>< Could someone please shine a light in my darkness?> This name is Ufimtsev.
Jan-12-11  rilkefan: My understanding was that the Pirc always has ...Nf6 early - 1.e4 d6 2.d4 Nf6 3.something g6 4.something Bg7 is the Pirc. The Modern is 1...g6 2...Bg7 and probably 3...d6. The Robatsch is the same as the modern. I think the Pirc places more emphasis on ...e5 or ...c5 and the Modern more on ...c6 and ...b5.
Jan-12-11  karnak64: <BOSTER> and <rilkefan>: thanks to both of you.
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