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Andre Cheron vs Maurice Polikier
Chamonix (1927), Chamonix FRA
Modern Defense: Two Knights Variation (B06)  ·  1-0



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sac: 8.Bxf7+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Sep-29-03  unclewalter: beautiful. this is all basically forced. any other variation and black loses the queen.
Sep-29-03  Doctor Who: 8.g4 is not nearly as good but it wins a piece. Where exactly did Black go wrong in this opening?

What happens on the refusal 8.Bxf7+ Kg8? I suppose then 9.e6 wins a piece.

Sep-29-03  Shadout Mapes: Too bad I've already memorized this trap. Here's a clue - if a player tries a wierd looking robatch opening and you have a regular Legal's Mate setup, and their knight is on d7 and the queen is trapped like that, sacrifice. Search for Robatch games under 15 moves and you'll find a whole slew of miniatures just like this one.
Sep-29-03  Bears092: or even Pirc...
Sep-29-03  erikcu: I am just an amatuer, but I alway found a bishop at c4 and a knight at f3 trouble. As black I usually defend g5 with a pawn or something, e5 can also be a threat, but it more often than not gets protected through the progress of the game.
Sep-29-03  myratingstinks: I completely agree erikcu!
Sep-29-03  kevin86: The Philidor defense also gives rise to these positions. Note the variety of tactics;smothered mate on the queen,a fork of king and queen,and a mate by queen and knight.Great use of the calvalry!
Sep-29-03  patzer2: If black plays 7. ..Kf8, Fritz came up with the pretty combination 8. Ng5! Bxe5 9. Bb3! [9. Ne6+ also wins, but with less flair] 9. ..Ng7 10. Nf7 Qe8 11. Qf3 Nf5 12. Nxe5 Kg7 [if 12. ..Nxe5, then 13. Bh6#] 13. Nxd7 Nd4. And white can now win easily in this position with 14. Qe3 or 14. Qf4 or 14. Bh6+ or 14. Qe4 or 14. Qg3, with Fritz's assessment at over 9.0 points up after the best lines of play for each of these moves.
Sep-29-03  Alchemist: Bxf2 is a major tactical theme in chess. Every self respecting chess player should learn about this genre of sacrifice.
Sep-30-03  patzer2: <Doctor Who> <Where exactly did Black go wrong in the opening?> Based on opening theory and the data in the data base , 5. ..Ngf6 was black's losing blunder. And although 4. ..Nd7 is not a blunder, and has been played by a former world champion for a win, it may not be black's best choice here.

After 5. ..Nf6 6. e5 dxe5 (what else? 6. ..Ng1 and black is three tempo behind in development) 7. dxe5, black is busted with no safe place to hide his knight. If black plays 6. ..Ng4 then he loses as in Mangu Saimeera vs Webster Charmaine, 1993 or Sylvan Jacob vs Flaata Alexander, 1994 suffering a fate almost identical to this game due to the devastating 7. Bxf7+ that immediately follows.

What should black have played instead?
Black won with 5. ..Ng6 in Unzicker vs Petrosian, 1962 and survived for a draw with it in P Cleghorn vs Rohde, 1976 Also worth considering is 5. ..e6, where black had good results in I Armas vs Ivkov, 1991

Most strong players would probably suggest an improvement on black's play at move three or four. Most commonly played and heavily analyzed for both sides is 4. ..Nf6, transposing to the Pirc (1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3). Black has also had some degree of success playing 4. ..c6 as in W Buchanan vs C McNab, 1999 and this might be preferred by those trying to avoid the heavily analyzed pirc lines.

One good option is to vary at move three with 3. ..c3 as in L Roos vs Bologan, 2001 or DeFirmian vs I Foygel, 2003 which transposes into the same position in this game as if black had played 4. ..c6.

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