january 29 2013

First of all my best wishes (this is the last moment) for this year 2013, after a "dure lutte", to use a neo-strausskanian vocabulary, against the Administration.
I take advantage of this return to business to warmly thank Daniel who was more than a substitute in this heavy task.
The audience was rather small for this last session of January, but nevertheless productive in variants to titillate the Master always in great shape

A little warm-up for the first position

1 - where to place the white Bishop to obtain a draw ?
W. : Kd5 Bd4
B. : Kf5 Ph7a2
= (2+3)

It is easy to imagine that he must not leave the big diagonal for the moment!

The following position is the exercise of the previous session

2 - white to play and draw
W. : Kf5 Rd6 Nb4 Pg5
B. : Kf7 Qg8 Né1 Pç6
= (4+4)

Continuation of the holidays for Daniel, only one helpmate, by the way easy and witty. I add an elementary 2# for relaxation, an amusing 3# from the 19th century and a long logical selfmate where I forgot to remove the solution. 

Minski 1Herbstman 1But there was also the solving tournament last Sunday, of which we give a sample. Your fake-master, whose skin the famous Parisian transport "régie" covets so fiercely, was cleanly kicked out of the metro at the Porte de Montreuil and had to finish the 3 km journey in black Africa, except for the temperature, on foot in the rain. This misadventure was strangely spared to the other participants, several of whom had nevertheless used... the same metro line. Thus scalded, although on the opposite side of the thermometer, and having solved one out of six diagrams after an hour, he decided to forfeit. He avenged himself by making the best possible score in the afternoon, virtually of course, since he had ipso facto eliminated himself from the tournament. 
A bishop can face two pawns passed away, with his king helping. Each must choose to deal with one pawn, but they must not fight. 
A great game analyst collaborating with a great composer can do no harm. If you don't forget the 2nd move, business is already better.   
A rook obviously won't win against two bishops, without pawns on the board, assuming they are not in capturables. Unless...       
It is hard to resist the temptation to talk about the most original study position that has been presented to me in 55 years. 
Karpov 16Ljubo 1Is it smart to place a knight on g3 when it can logically go neither to f5 nor h5, because a black pawn is already on g6 or will be there the next move? Yet Karpov had accomplished this with undeniable success in 1975 against Gligorić, in a Spanish; in 1972 against the same, he was "only" on e3, with also g4 as a prospect. He did it again in 1978 against Kortchnoi, in a Pirc. This time, he did more: he played it on h4, while Black had pawns on e6 and f7! Quo vadis?

  See you, God willing, in a fortnight time on Tuesday 12 February. Have a good time. 

When Igor starts composing, especially in association with a great name in the study, one can expect surprising moves

The following is a computer composition on the theme of win of rook against 2 bishops

3 - White to play and win (neither the brand of software nor the brand of computer is specified)
W. : Kd6 Rg5
B. : Ka8 Bé4g2
+ (2+3)

Millimetre variants, but still totally accessible to the vulgum pecus

And finally, a composition that looks simple, but to find the solution, you really have to work hard

4 - white to play and win
W. : Kh1 Pb6ç5d4é3f2
B. : Ka8 Pç7d6é5f4g3
+ (6+6)

The game of the day is a beautiful fight between Karpov and Ljubojevic

5 - game of the day
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Nbd7 5. e3 c6 6. Nbd2
6. Nc3
6. … Be7 7. Bd3 0-0 8. 0-0 b6
h6 or Re8 or dc
9. cd
A responsible move to try to maintain a small advantage rather than suffer Ba6
Moves such as Rc1, Qc2 or e4 can be played, but none of them lead to a maintenance of the white advantage
9. … cd

9. … Nxd5 10. Bxe7 dxe7 11 Nc4 c5 12 e4 Nf4 13. d5 ed 14. ed has not really been considered byA.K.
14. … Ba6 (14. … Nxd5 ? 15. Re1 Qd8 16. Bxh7+ +-) 15. Re1 Qf6=
10. Rc1 Bb7 11. Qa4 a6
Prevents, of course Ba6
12. Qb3 Bd6 13. Rc3 h6 14. Bh4 Qb8 15 . Bxf6 gf 16. Rfc1 f5 17. Nf1 Qd8 18. Ng3 Qe7 19. Nh5 Rfc8 20. a4 Kf8 ?!
RxR followed by Kh8 is more harmonious
21. g3 Bb4 22 R3c2 RxR 23. QxR Bd6
There was a hole on c7 and it was difficult to control by Rc8.
24. Qe2 Bb8
An original move quite in the style of Ljubo
25. Rc3 Ke8 26. Nh4
Opticaly very nice !
26. … Qb4 ?
Small variation : 26. … Qg5 27. f4 Qg4 28. Qf1 !
27. Qc2 ?!
27. Bxf5 !
27. … Kd8 ! 28. Be2 Ba7 ?
28. … Bd6!
29. Nf4 Nf6 ? 30. Nd3 Qe7 31. Ne5 Ne4 32. Rc6 ! f6
Not too many other possibilities, it gets tricky : 32. … Bb8 33. Rc8+
33. Nhg6 Qe8 34. Rc7 fxe5 35. Rxb7
With a small theat
35. … Rc8 36. Qb3 Rc7 37. Rxc7 ?!
Better was 37 Rxa7 and Qxb6+ and Nxe5 with some ease
The Master spared us the end of the game because of the hunger (of the listeners).
White won in the end

All these variants and many others are in the electronic report of the Master whom I thank in passing.
To start the restoration part, a passage through Einstein's chess (or rather Poincaré's if we want to restore the historical truth)

6 - h#2 Einstein chess 2 solutions
W. : Kf1 Ba8 Nh2 Pf4g2
B. : Kh1 Bf3 Pf5
h‡2 (5+3)
Einstein : if a piece captures, it progresses and if it plays without capturing it regresses according to the respective cycle p -> N -> B -> R -> Q and Q -> R -> B -> N -> p

a very elegant problem in the effects

Now we let the Lions off the hook with the following problem

7 - serial h#18 with Lion-piece
W. : Kd1 Na8f4 Pb6 RLç2 BLb8
B. : Kb4 Pb7g7
sh‡18 (6+3)
BL=Bishop-Lion : Grasshopper with the bishop's march but able to land on any free square beyond the sautoir
RL=Rook-Lion : same as the Bishop-Lion but for the rook
A long and unique multi-piece journey to the final tableau.
A great piece of bravery as a main course

The anti-Circe for dessert

8 - h#2 Anti Circe
Alberto ARMENI
W. : Kg5 Nd8
B. : Kg8 Bb3 Nf8h8 Pg7
h‡2 (2+5)
Anticirce : the capturing piece is reborn on its original square if it is free, otherwise the capture is illegal

Very elegant

And the digestive, very convincing to relieve your stomach


9 - h=8 Mirror Circe mandatory white capture
W. : Kh5 Rb7 Bd5
B. : Ka8 Pa3ç3é3g3b2d2f2h2
h=8 (3+9)
Mirror Circe: a captured piece is reborn on the opponent's rebirth square if it is free, otherwise it disappears
Mandatory white capture : if a capture is presented to the whites, they are obliged to make it

Very nice and quite simple.
The longest thing is, for the neophyte, to get used to the genre.

Good reading to all and see you on Tuesday 12 February.

Yours sincerely

The Greffier

winter duvet

The two absences of the master greffier did not in any way diminish his skill.
Just an oversight: it is curious that on the 26th move, the only satisfactory ways to play are 26... Kd8! and 26...Qd8! And in 26...Qg5, I definitely prefer 27 f4! Qg4 28 Qxg4 fxg4 29 f5! a variation improvised on the scene by your fake master.
Have a good time.


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