february 15 2005

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the greffier having had a big blow (without any link with Saint Claude as you might have thought), the report comes to you a little later.

The assembly of the faithful was there to attend the Master's class, who, unlike the previous session, had not been obliged to push his machine and was therefore in good shape to begin the festivities.

The electronic version written during the fourth half (we could call it the last quarter if we were not superbowlophobes) appears at the end of the report and, as usual, a big thank you to the Master.

 

A neuron warm-up simple enough to begin with, although some variations are quite tricky.

1 - White plays and draws.

Cours2005021501

 

W.: Ke1, Rb5, Na1 and c7

B.: Ka4, Qf4, pc3

You can feel, with your appetite coming, that there are certain forks, it's up to you to see which ones.

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The tactfulness of the St. Lazarians is boundless: at the last course, they stood by me when I was late. Today, their lateness leaves me the delicious pleasure of being early, without mechanical boredom, letting me enjoy the delicious minutes of happiness. Only one helpmate Vladimirov for Daniel, the other being replaced by an selfmate 2# (this should not cause a stroke).

A not really trivial 2# and a 3# which gives an idea of what can still be done with the original in the 3rd millennium. And a fairy by a talented French composer (who is not MC) that I had presented in St-Lazare when it was still unpublished, prophesying: it will be the first prize.

Lputian It is only the second, the first being captured by Aschwanden (the "Swiss MC") with a type of problem that I prefer to spare my dear listeners and myself. Four studies, the first very simple, the fourth proving (unintentionally) the most difficult. The game of the day is a new demonstration that 1 d4! can lead to fierce fights that some naive people believe are reserved for 1 é4?!. The "agape" phase is self-explanatory. Good regalade. AV

 

A beautiful work to follow with a relatively classical position, but which conceals a plethora of riches.

2 - White plays and draws

Cours2005021502

 

W.: Ka3, Rd4

B.: Kc2, Rh3, pb3 and b6

There are no less than 3 pats in the different variants, a very nice study with this material.

 

On the razor's edge, the following position is a model of reciprocal resources.

3 - white plays and draws

Cours2005021503

 

W.: Ka5, Bf7, pc7 and e6

B.: Ka2, Qh3, Nd6

To help you, 1.c8=Q is not a good shot: 1 . . Qa3+ is a good line

The listeners being as fit as the Master, a 4th study was placed on the wall chessboard.

4 - white plays and wins

Cours2005021504

 

W.: Kh8, Na2, pa6 and h6

B.: Kf6, Rg2, pf7

It takes a lot of footwork, but you have it, to avoid the elephant tusks of the blacks.

The part of the day is not a long one but it is a beautiful fight, otherwise the Master would never have dared to present it in front of the audience under penalty of being covered with tomatoes and other various projectiles in more or less good condition.

5 - the game of the day 1. d4 d5 2. c4 dc 3. e3 (the white player is a false calm) e6 4. Bxc4 Nf6 5. Nf3 c5 6. Qe2 a6 7. dc (7. Bb3 to anticipate b5 or Bd3 are also playable) Bxc5 8. e4

Cours200502150501

(as Daniel and Pierre have pointed out in chorus, they might as well play it on the 1st move!) Qc7 (8. ... b5 9. Bd3 Nc6 10. e5 Ng4 is a little better for Black) 9. e5 Ng4 10. 0-0 Nxf2 11. b4 (11. Rxf2 Bxf2+ 12. Kxf2 b5 is very good for blacks or 11. Be3 Bxe3 12. Qxe3 Ng4 13. Qg5 Qxc4 14. Nbd2 Qxb4 15. Qxg7 Rf8 16. Nc4 Qxc4 and I refer you to the electronic version for the rest of the variant with 14. ... f5 instead of Qxc4) Nh3++ 12. Kh1 Nf2+ (draw?) 13. Rxf2

Cours200502150502

(Shut up!) Bxf2 14. Nbd2 Ba7 15. Ne4 0-0 16. Nf6+

Cours200502150503

( get it in your face!) gf 17. ef Nd7 (see analyses below) 18. Qd2 Rd8 19. Qg5+ Kf8 20. Bf4 Qc6 (20. ... Qxc4 21. Bd6+) 21. Rd1 Nxf6 22. Rxd8 Ne8 23. Ne5 resign

Cours200502150504

Let's go back to black move 17. ... Rd8 gives a little air to the Black King 18. Bh6 Nd7 19. Qxe6 (brilliant but insufficient) Nf8 20. Qe7 Qxc4 21. Qxd8 Bh3 22. Qxa8 Bxg2+ 23. Kxg2 Qe2+ and it sucks for the whites. 18. Bg5 Nd7 (18. . . . Nc6 see the electronic cr, 18. . b5 19. Bd3 Bb7 20. Ne5 Rxd3 21. Bf4) 19. Qe4 Qd6 20. Qg4 Ne5 21. Nxe5 h5!

 

After this exhausting fight, it is time to move on to the 3rd half with a smooth start.

How about a 2-moves?

6 - #2

Werner SPECKMANN - Shakhmaty v SSSR, 1965

white Pc7c6 Sd8 Ba5b7 Kb4 black Ka7
#2(6+1)
b) -pc6
c)=b) -Bb7
d)=c) -Ba5
Solution

this is what we call a strip-tease in problem language, it is simple and pleasant to look for.

The continuation is much less easy with a super-Circe with Lions

7 - s#4 super-Circe with Lions

Kohey YAMADA - The Problemist, 2003-11 - ?omm.

selfmate : White plays and forces Blacks to mate them

: the captured piece is reborn at the taker's choice on any legal square.

: grasshopper that can go beyond the square immediately behind the sautoir

: pieces moving on the lines of the Queen, which needs a sautoir to move and lands just behind the sautoir if the square is free or occupied by an opponent's piece.

white Pg7h2 Kh4 Bf8 black Ph7g6h3 Kh6 LId8
s#4 Super-Circé(4+5)
🨺d8: Lion
Solution

good luck

Always in the super-circe vein, another little gem

8 - h#2 super-Circe with marine pieces

Vlaicu CRISAN - The Problemist, 2003-01 - 2nd Prize

helpmate : Black plays and helps Whites to play and mate them.

: moving units with the characteristics of normal units. They capture the opponent's piece if it is used as a sautoir.
The difficulty is for the Sea Knight, but here there is none, you are saved.!

white NDd5 Kh1 TRf6 black Pc5e6 Ke5 Sf3 SIg1
h#2 Super-Circe(3+5)
b) ♟c5-->g7
🨵f6: Triton
🨺g1: Siren
🨶d5: Nereide
Solution

Good luck again

 

To relax a little before the big piece at the end, a little Reflex

9 - r#5

: if a 1 move mate is presented, one of the two sides is obliged to play it.

If it was Black to move, they would be obliged to play e1=Q#, and you would have to bring the right position in 5 moves.

white Qh2 Pf5 Kg1 Rg2 black Pe2f6 Kc1
r#5(4+3)
Solution

 

Finally, a high-class proof game

10 - proof game in 27,5 moves

proof game : starting from the normal position of the pieces (this is not random chess), it is necessary to arrive at the position of the statement in the number of moves indicated (27.5 means that White has just played his 28th move)

Cours2005021510

B.: Rg2, Ta3 et b3, Ff1, Cg8 et h3, pa2, b2, c2, d2, e3, f4, g5 et h2

N.: Rh4, Dc4, Ta8 et h1, Fd1 et g3, Cc8 et e8, pa7, b6, c7, e4, e7, f5, g6 et h7

It remains for me to wish you a good headache and to give you an appointment in a few hours for the corrections and to 8 March for the next course.

Amicalement vôtre

hair attribute

 

The master greffier has in the confused part the variant 11 Be3?! Ng4! with the much more interesting 11 b4! Ba7! (instead of Nh3+?! played) 12 Be3! Bxe3 13 Qxe3 and the rest as indicated, but with a shift move, so that the move ...Qxb4 is understandable, not a fairy nostalgia of a ghost pawn.

Concerning the critical position after 17...Rd8! 18 Bg5! the analytical acuity of the listeners allowed :

-- to confirm that 18...Nd7? is a loser (22 Qe2)

-- to conclude that 18...Nc6 leads to a draw

-- to reinforce 18...b5 19 Bd3! Rxd3! which seems to give equality, whereas the " maître-bidon " believed in white gain.

It is nevertheless interesting that no continuation leads to a Black advantage after 18 Bg5! (Stohl thought Black was better after 18...Nc6 and 18...b5). Have fun AV

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