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Tarek Goutali vs Luis Pan Zhang
Olympiad (2008), Dresden GER, rd 11, Nov-25
Formation: King's Indian Attack (A07)  ·  0-1
ANALYSIS [x]

FEN COPIED

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sac: 29...Rxg2+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Apr-23-18  RKnight: It is not immediate mate because of 31 Re4, but white wins the Q, so a bit atypical for a Monday.
Apr-23-18  areknames: Gave myself the usual couple of seconds to solve this...and didn't get it in that short time frame. One has to see that 31.Re4 loses the queen, but even 31.Kh3 prolongs the game by a couple of moves. Not quite your usual Monday.
Apr-23-18  zb2cr: A little more complicated than the typical Monday. 29. ... Rxg2+; 30. Kxg2, d4+.

Now all White's choices are bad.

31. Kg1, Qf2#.

31. Kh2, Rh8+; 32. Kg1, Rh1#.

31. Re4, Qxe5 and 31. Qe4, Bxe4+ both lose the Queen.

Apr-23-18
Premium Chessgames Member
  ChessHigherCat: 29...Rxg2 30. Kxg2 (30. Kh1 Qxe5 31. Rxe5 d4 32. Re4 Bxe4 33. dxe, etc. only wins material, I think) d4+ 31. Re4 Qxe5 wins the Q at least.

Too long and drawn out and too many variants for a Monday unless I'm missing something more decisive.

Apr-23-18
Premium Chessgames Member
  ChessHigherCat: I thought of a faster variant for the declined variant while munching some smoked almonds (always a reliable source of inspiration):

Rxg2 Kh1 Rh8+ Nh7 Rhxh7#

Apr-23-18  stacase: The discovered check by the bishop 30...d4+ was great and I didn't see it, but black was going to "Squash White King like bug" with or without the Bishop.
Apr-23-18  Pchief: The wrong with 30...Qf3+ is that Black's rook can't perform a subsequent Rh8+ sending itself into the white queen's mouth.
Apr-23-18  GoldenKnight: Ah, you caught this before I had a chance to delete it. Bravo!
Apr-23-18
Premium Chessgames Member
  al wazir: A *lot* more complicated than most Monday puzzles.

After 30 d4+ white can try either Kh2 or Kh3 instead of Re4. Both lead to quick mates, but to claim the point you have to see all three lines ahead of time. I didn't.

Apr-23-18
Premium Chessgames Member
  patzer2: I found the game continuation 29...Rxg2 30. Kxg2 d4+ -+ for my Monday solution easy enough.

However, I found myself still calculating the final position as it took me a while to find the not-so-easy mate-in-two 31. Kh3 Qh6+ 32. Kg4 Bf3#.

Apr-23-18  saturn2: 29..Rxg2
30 KxR leads to mate
30 Kh1 d4 and white is also lost.
Apr-23-18
Premium Chessgames Member
  agb2002: Black is one knight down.

White threatens Qxf6.

The bishop x-rays the white bishop. This suggests 29... Rxg2+:

A) 30.Kxg2 d4+

A.1) 31.Kg1 Qf2#.

A.2) 32.Kh2 Qh6+ and mate in two.

A.3) 32.Kh3 Rh8+ 33.Kg4 Bf3#.

A.4) 32.Re4 Qxe5 wins decisive material.

A.5) 32.Qe4 Bxe4+ followed by Qf2+ wins decisive material.

B) 30.Kh1 Qxe5 31.Rxe5 d4

B.1) 32.Rh5 Rc2+ wins a rook.

B.2) 32.Re4 Bxe4 33.dxe4 Rxb2 34.cxd4 Rxa2 35.dxc5 b5 with a won endgame.

Apr-23-18
Premium Chessgames Member
  patzer2: For an early White improvement, the apparently untested computer suggestion 8. e5 ⩲ to ± (+0.72 @ 22 ply, Stockfish 9 analysis of move 8.?) looks good.
Apr-23-18  diagonalley: after black's 30th move, the engine gives mate in ten(!!) ... a monday puzzle(?!) ... if so, then i'm genghis khan's brother-in-law
Apr-23-18
Premium Chessgames Member
  ChessHigherCat: <diagonalley: after black's 30th move, the engine gives mate in ten(!!) ... a monday puzzle(?!) ... if so, then i'm genghis khan's brother-in-law>

So you are married to Genghis's sister Gingi Vitis Khan? She has notoriously bad breath, so you must have married her for her musk oxen. Does that explain your avatar?

That said, I agree about the puzzle. Not every Monday has to be a mate in 2 but a mate in 10?

Apr-23-18  leRevenant: What the others said.
Apr-23-18  et1: I missed it because I searched for an almost immediate solution, This is not "Monday".
Apr-23-18
Premium Chessgames Member
  gofer: This was very difficult for a <Monday>.

<29 ... Rxg2+>
<30 Kxg2 d4+>

All king moves get mated quickly and so does the only queen move.

31 Qe4 Qf2+
32 Kh3 Rh8+!

33 Kg4 Bxe4
34 Ne3 Rg8+
35 Kh3 Qxg3# or Kh4/Kh5 Qh2#

33 Qh4 Bg2+
34 Kh2 Bf3+ (34 Kg4 Qf5#)
35 Kh3/Kh1 Qg2#)

<31 Re4 Qxe5>


click for larger view

Ouch.

But this is not really <Monday> stuff...

Apr-23-18
Premium Chessgames Member
  malt: 29...R:g2+ 30.Kh1
(30.K:g2 d4+
31.Kg1 Qf2#
31.Kh3 Qh6+ 32.Kg4 Bf3#
31.Kh2 Rh8+ 32.Qh5 R:h5+ 33.Kg1 Rh1# )

30...Q:e5 31.R:e5 d4 32.Re4 Rgf2 33.Kg1 B:e4 34.de4 d3

A bit more than your average Monday

Apr-23-18  mel gibson: I saw the first move easily.

Stockfish 9 says:

29. Qxe5 Rxg2+

(29. .. Rxg2+ (♖f2xg2+
♔g1-h1 ♕f6xe5 ♖e1xe5 d5-d4 ♖e5-e4 ♖g2-f2 ♔h1-g1 ♗b7xe4 d3xe4 d4-d3 ♖c1-d1 ♖f2xb2 a2-a4 ♖b2-c2 ♘f1-d2 ♖c2xc3 ♔g1-g2 ♖c3-c2 ♔g2-h3 ♔c8-c7 ♘d2-b1 c5-c4 ♘b1-a3 ♖c2-e2 a4-a5 b6xa5 ♘a3xc4 ♖f8-h8+ ♔h3-g4 ♖e2xe4+ ♔g4-f3 ♖e4xc4 ♖d1xd3 ♖h8-f8+ ♔f3-g2 ♖c4-c2+ ♔g2-h3 ♖f8-h8+ ♔h3-g4 a5-a4 ♔g4-f3 ♖c2-c4 ♔f3-g2 ♖h8-f8 ♔g2-h3 ♖c4-c2 ♔h3-g4 ♖c2-e2 ♖d3-c3+ ♔c7-b6 ♖c3-c4) +7.37/33 105)

score for Black +7.37 depth 33

Apr-23-18
Premium Chessgames Member
  whiteshark: What <areknames> said.
Apr-23-18
Premium Chessgames Member
  Richard Taylor: Fischer played the King's Indian Attack in I think the first or second US Champs. I tried it in tournament and found myself struggling. The idea is good.

Good finish by Black.

Apr-23-18  schachfuchs: In deed, the puzzle should start with 28....Rf2 - but still easy enough for maybe a tuesday!?
Apr-23-18  morfishine: A couple of themes at work here, first lets eliminate king defenders starting with <29...Rxg2+> Then after 30.Kxg2 we get the exposed check with <30...d4+>

Once I realized 31.Re4 was impossible due to 31...Qxe5 I stopped calculating figuring White King was caught in a mating net

*****

Apr-23-18  WorstPlayerEver: Took me a bit longer than usual. 29... Rxf1+ 30. Bxf1 Qf2+ 31. Kh1 d4+ 32. Re4 did not work. It seemed also a bit long for a Monday. 29... d4 was quickly to put aside.

Then I tried 29... Rxg2 and it worked! 30. Kxg2 d4+ 31. Re4 Qxe5...

I feel pretty confident, because I somehow sensed that cg wanted to trick me into it with Re1-e4. So I calculated more than the usual 30 Monday secs.

Hasta la vista!

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