october 8 2013

Greffier d'égout, hier.

For this first session of the season, there was no regular clerk, but a large audience.
Here are the facts reported by Daniel:

"-- we were 5 listeners! (Grégory, Marc Schaub, Michel still convalescent and the great Ricou himself!)
-- The first study is simple, and can be found by anyone who knows how to see wins in 1 move and mates in 2 or 3 moves.
It nevertheless gave me a lot of trouble because if I saw the mates (more or less) well, I missed the win in 1 move in 2 variants.
-- Study 2: Nice, quite easy if you find the 3rd and 4th moves.  And to really appreciate the study, understand why the 4th move is well unique to cancel (no catch in case of mistake, and that's not easy to see).
-- Study 3. Nice. Understandable solution, but I found it impossible to find (despite the daring formulation). Find the 2nd move N. 2 variants."
Good reading to all

Le greffier virtuel

Master's words.

A rich harvest of problems gleaned this summer. The 9th helpmate (in 5) seems obvious, doesn't it? The only difficult one seems to me to be "mister" Jones' 7th. But there are some tricks in some of the others.
Four 2 moves spread over almost a century. In the 2nd, everything is prepared, but... The 3rd is the (brilliant) work of a man from Nice. Same anthology of 3# over a century, in very different styles.

Vl pachmanA tribute to the great Vladimir Pachman (brother of GM Ludek) in 4#. A few other varied moremovers, ending with two charming French works.
All of these problems can be solved, as can Gamnitzer's selfmate 6#. However, for the latter, I prefer to "forget" to erase the solution.
We must start again slowly, without frightening the many new recruits of our dynamic circle. Let's start this new school year with an easy Azeri study, but with a point on the 10th move.

Nadareishvili 1A Rook is sometimes as strong as a Queen, helped by a pawn on the 7th. A tribute to Georgia which has just organised a congress where I would have liked to be.
Two sub-promotions for the road, by a great Polish composer. He also managed 3, but in an inevitably more artificial presentation. In a winning study, it's a bit easier to keep a natural pace, see Halberstadt's work.  
An interesting pawn ending was proposed by two listeners. It looked familiar. I remembered a trip by the white king to a5 and another to c5. The move I wanted to play (1 Rc3) looks winning. And it is!

Jansa 2Simply, the wK was not quite where it should have been (not in d3, but in e3). I attach the analysis made at least 6 years ago.
EbalardToday's game has a kind of double. The theme is: the advantage of a bad structure! You do sacrifice a pawn for an attack, don't you? Well, here it's only half a pawn. One comes from 1 e4, the other from 1 d4. But good ideas are independent of the opening...
See you, God willing, in a fortnight, on Tuesday 22nd October.
Have a good time.




It's crazy !!
Here is an incredible echo of the lesson, reported by the Master on 9 October.
We find all the themes of yesterday's game: the problem in f6, the h4-d8 diagonal, the f7 square, the forceful passage on the d column...
I believe that Ng3 can be found by a sufficiently strong human (but obviously not by everyone!) who has followed the analysis of the last lesson.

The Master's complement.

 Here is MVL's tribute to your master bidder.

[Event "Bilbao"] [Site "Bilbao"] [Date "2013.10.09"] [Round "3.2"] [White "Vachier Lagrave, M."] [Black "Mamedyarov, S."] [Result "1-0"] [ECO "D47"] [WhiteElo "2742"] [BlackElo "2759"] [PlyCount "79"] [EventDate "2013.??.??"] [EventType "tourn"] [EventCountry "ESP"] [SourceDate "2010.01.01"] 1. Nf3 Nf6 2. c4 c6 3. Nc3 d5 4. e3 e6 5. d4 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bd6 9. O-O O-O 10. Qc2 Bb7 11. e4 e5 12. h3 exd4 13. Nxd4 g6 14. Rd1 Qc7 15. Bh6 Rfe8 16. Rac1 a6 17. Nf3 Rad8 18. Bg5 Qb8 19. a4 Kg7 20. Ne2 h6 21. Bh4 c5 22. axb5 axb5 23. Bxb5 Bxe4 24. Qc3 Re6 25. Bc4 Bxf3 26. gxf3 Re7 27. f4 $1 {[#] The revenge of the weak pawn, as in the Saint-Lazare lesson given the previous day .} Rde8 28. Rc2 $1 (28. Ng3 $3 {(computer move, untraceable by a human : slow threats Ra1!-a6 or Rd3! for Nf5+)} -- {(the threats)} (28... Qb6 29. Bxf6+ Nxf6 30. Ra1 $3 {[#]} Qc7 31. Ra6 Rd8 32. Rd3 $3 $18) (28... Bxf4 29. Rxd7) ( 28... Rf8 29. Rd3 $1 {(or Ra1!)} Bxf4 30. Rxd7 Be5 31. Bxf6+ $1 Bxf6 32. Qd3 Rxd7 33. Qxd7 Bxb2 34. Rc2) 29. Rd3 (29. Ra1 Bxf4 30. Rxd7 Be5 31. Rxe7 Rxe7 32. Qe3 $1 Bd6 33. Bxf6+ Kxf6 34. Nh5+ gxh5 35. Qxh6+) 29... Bxf4 {(la menace était Ch5+ gxh5 Tg3+)} 30. Rxd7 Be5 31. Rxe7 Bxc3 32. Rxf7+) 28... Re4 29. Rcd2 Qb4 30. Qxb4 cxb4 31. Bb5 g5 32. fxg5 (32. f3) 32... hxg5 33. Bg3 $6 $138 (33. Rxd6 $1 gxh4 34. Kf1 $1 {(threatens Nd4)} R8e5 35. Bd3) (33. Bxg5 $6 R8e5) 33... Bc5 $2 (33... Bf4 34. Nxf4 gxf4 35. Bh2 $14) (33... Bxg3 34. Nxg3 $14) 34. Kf1 R8e7 35. Bxd7 (35. Bd3 $1) 35... Nxd7 36. Rxd7 Rxe2 37. Rxe7 Rxe7 38. Rd5 Ba7 39. Rxg5+ Kh7 40. Rb5 1-0

Certainly a case of a mysterious mental link.


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