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Robert Fontaine vs Andrei Sokolov
French Championship (2007), Aix-les-Bains FRA, rd 1, Aug-13
Bogo-Indian Defense: Nimzowitsch Variation (E11)  ·  0-1

ANALYSIS [x]

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sac: 29...Qxh2+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
May-04-11  BOSTER: <Once>
<For every person who struggles to build a wall...there is another who only wants... knock it down>. <Domdaniel> <But some walls deserve to be knocked down>. I guess that idea to knock down the Berlin Wall was much better that to build it.
May-04-11  sevenseaman: <jimforprovidence> 29...Ra3 has a catch but I am not sure, seeing its late here.

30. Rd8+ Kh7 31. Qb1+ Rc2 32. R1d2 Qf1+ 33. Qxf1 Rxd2 34. Nxd2 and White seems to have survived the tsunami.

If there is a catch I will analyze it tomorrow.

May-04-11  cyclon: 29. -Qxh2+ ( -Qg2+?) and cufflinks in view of 30.Rxh2 Rxh2+ 31.Kg1 Rg2+ 32.Kf1 (Kh1 Nf2X) -Nh2+ 33.Ke1 Re2X.
May-04-11  newton296: <YouRang: Rats, I missed the pretty forced mate. But I think I at least found a convincing win in <29...Qxe3>, threatening ...Qxb3 and ...Nf2+>

I think your right, ...Qxe3 was the first I considered and most obvious move to get the Q out of danger and grab a pawn on the same move. I don't see any good moves for white to stop the f pawn from promoting soon.

May-04-11  redorc19: I saw up to 31. Kg1 but missed 31...Rg2+ forcing mate. I thought that there would be some form of easy counterplay I missed, but unfortunately my lazyness didn't pay off. Blacks 31st move just seems like a patzer's kind of useless check which instructors warn us woodpushers about...
May-04-11
Premium Chessgames Member
  alexrawlings: Nice puzzle, which I'm pleased to say I got. I wonder if we'll see 27.. Bf3!! as a Sat or Sun puzzle at a later date. I never would have played that OTB!
May-04-11  MountainMatt: Another Wednesday puzzle stops me cold. I'm so glad God loves even His mediocre children!
May-04-11  nolanryan: i believe white resigned in this position because she was concerned about lack of places to put her king
May-04-11  Once: <Domdaniel> <BOSTER> That's precisely the point!

We may <think> that the only thing we can build is something physical like a wall or a car. But the reality is that building takes many forms...

... In the song "one piece at a time" the hero thinks he is building his dream car. In fact, the car is a mismatched mess of pieces from different years. The success of the story is two-fold - first, that he carries out his plan and secondly that he and his wife accept the resulting monstrosity with good grace and a sense of humour.

... we can build a combination to destroy the opponent's position, as in today's POTD.

... graffiti can sometimes be more positive than a dull wall, especially if it is as artistic as a Banksy.

...tearing down a wall can itself be an act of rebuilding - eg to tear down the Berlin Wall to build or rebuild a nation.

...helpful and constructive kibitzing that builds on what has been said before and doesn't try to criticise or detract.

May-04-11  stst: Basically have to limit the WK's movement:
29.... Qxh2+
30.R2xQ R2xR+
31.Kg1 Rg2+
If 32.Kh1 Nf2#
If 32.Kf1 Nh2+
33.Ke1 Re2#
Aug-13-16  SpiritedReposte: Such an instructive mating combination.
Jul-15-23  jrredfield: I selected 24 ... h4, thinking to break up White's King defense a bit. It appears to have potential with 25 Qc3 r8a3 and at some point hxg3. This gives Black growing firepower in White's domain and keeps White on his toes.

I see that the text move is 24 ... g4. So far, I don't really see that move as all that superior to h4. 24 ... Bd3 also looks promising. This is a rather passive move, but Black already has a clear positional advantage at this point already. So there are probably other winning moves for Black as well.

Jul-15-23  mel gibson: I chose 24...h4.

Stockfish 16 says:

24... Ng4

(24. .. Ng4 (Nf6-g4 Qc1-c3 Qe7-g5 Nb3-d2 Ra8-a3 Qc3-d4 Ra3-d3 Nd2xe4 Qg5-e7 Rc5xd5 Rd3xd4 Rd5xd4 Ra2-c2 h2-h3 Ng4-e5 Re1xe2 Rc2xe2 Ne4-d2 g7-g6 Bg2-d5 Kg8-g7 Kg1-f1 ) +5.03/43 247)

score for Black +5.03 depth 43.

If I force SF to play my choice it is not as strong:

24...h4

(24. .. h4 25. Qc3 (Qc1-c3 Be2-c4 Nb3-c1 Ra2-a3 Qc3-d2 Nf6-h7 Qd2-c2 Qe7-f6 g3xh4 Qf6xh4 Qc2-b2 Nh7-f8 Qb2-e5 Nf8-e6 Rc5-a5 Ra3xa5 b4xa5 Ra8xa5 Nc1-e2 Bc4xe2 Re1xe2 ) -3.30/42 177)

score for White -3.30 depth 42.

Jul-15-23  Brenin: My idea was 24 ... Ng4 followed by 25 ... Qf6, but I was amazed to see that White played the greedy 25 Rxd4, and not 25 Qc3 to discourage Qf6. But after that 25 ... Bc4 26 Nd2 R8a3 27 Qd4 Rd3 is horrible for White.
Jul-15-23  Mayankk: I noticed the 24 ... Ng4 idea followed by either 25 ... Nxf2 and a discovered check by Bishop or 25 ... Qf6 and 26 ... Qxf2.

But then White is not expected to just wait and let it happen. It seemed to me that it had many defending options e.g. 25 Rc2 which will likely limit the damage to a pawn by 25 ... Qxb4 26 Rcxe2 Rxe2 27 Rxe2 Qxb3 or 25 ... Qc3 which is a more direct defense against Qf6 but may still allow Nxf2.

Jul-15-23
Premium Chessgames Member
  perfidious: This resembles a Sunday POTD in degree of difficulty.
Jul-15-23  stacase: I was happy to get the first three moves.
Jul-15-23  Mayankk: This game is probably best served as an early week puzzle at the 29th move. 29 ... Qxh2+ is a beautiful, although not difficult to see, move from Black and the resulting mating pattern is pretty and fully forced.

I think that was the case in the past, judging by old Kibitzes. For some reason it was upgraded to an end-week puzzle on the 24th move. But that kind of misses the point.

Jul-15-23  Whitehat1963: Wow! What a finish!
Jul-15-23  agb2002: The first idea that comes to mind is 24... Ng4 25.Rxd5 Qf6 26.f4 exf3, winning decisive material.

Or 26.Rd2 Qxf2+ 27.Kh1 Qxe3 28.Rexe2 Qxb3 29.Rxa2 Rxa2 30.Rxa2 Qxa2 wins a pawn (31.Bxe4 Qxh2#).

Or 28.Rdxe2 Qxb3 29.Rxe4 Nf2+.

Or 25.Nd4 Qf6 26.Rxe2 Rxe2 27.Nxe2 Qxf2+ 28.Kh1 Qxe2 29.Rxd5 Nxe3 is winning.

Jul-15-23
Premium Chessgames Member
  chrisowen: I'm box putty its flick juvenile Ng4 hob dud axiom jock buddy its axled its Ng4 bet :)
Jul-15-23
Premium Chessgames Member
  scormus: Another fail for me. I didn't realise the strength B's position and went for the more positional 24 ... Bd6, which SF rated ca +5.8 to B, not as strong as the more directly attacking ... Ng4! (ca. +6.5 to B).

<Mayankk: This game is probably best served as an early week puzzle at the 29th move.> Definitely! After 24 ... Ng4 the sequence is essentially determined by the help W gave to B. Certainly wasn't expecting 25 Rxd5? or 29 Red1?
B already had a big advantage after ... Ng4, but 25 Qc3 would have left more work to do.

Jul-15-23
Premium Chessgames Member
  Check It Out: I got the first 3 moves but not 27...Bf3.
Jul-15-23  vajeer: <jimfromprovifence> in your line, I think white can reply with 33.Qc5 eyeing 34 Rd8+ and may have enough counterplay
Jul-15-23  tibone: My favorite was 24...Bf3
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