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Problem 231: Janos Csak - Fairy (Circe, Mirror Circe)

csak(13.08.2013) An original fairy miniature with change of conditions between the Set Play and the Solution by Janos Csak from Hungary.





231

Set Play: 1…fxe7(Qd8) 2.Qd5 e8Q#

Solution: 1.Qxf6(Pf7) f8Q 2.Qxf8(Qd8) Qd5#

 

   Circe: Captured units (not Ks) reappear on their game-array squares, of the same colour (pieces), on the file of capture (pawns), or on the capture file’s promotion square (fairy pieces). If the rebirth square is occupied the capture is normal.  

   Mirror Circe: Like Circe, but the rebirth square of a piece is the square occupied at the beginning of an orthodox game by a piece of the same kind and of the other side. Related to the square they occupied before the rebirth: Rooks, Bishops and Knights are reborn on the square of the same color; Pawns (including fairy Pawns) are reborn on the same file; other fairy pieces are reborn on the same file and on the promotion rank of the other side.

 

Comments  

 
+4 #1 Kenneth Solja 2013-08-14 06:48
By adding one black pawn to g4 and using only fairy condition Mirror Circe.

W: Kh5,Sc8,bg5,bf6
B: Ke6,De7,bf5,bg4
H#2* 2 solutions
Mirror Circe

1.- f6*e7[+bDd1] 2.Dd1-d5 e7-e8D#

1.De7*f6[+wPf7] f7-f8D 2.Df6*f8[+wDd8] Qd8-d5#
1.De7-g7 f6*g7[+bDd1] 2.Ke6-f7 g7-g8D#

Black Queen is captured on three different squares and is promoting his pawn to queen on three different squares.
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0 #2 Diyan Kostadinov 2013-08-16 04:28
Three different captures of the bQ and only one fairy condition in all phases looks good to me. I waiting for the author's comment about this version.
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+1 #3 Nikola Predrag 2013-08-16 12:19
Set-play is OK, bQ makes a selfblock on d5, so bQ is the only piece which can do that from its rebirth square (Circe or Mirror circe). But bQ is useless in the end of the real solutions. The content is rather simple and at least the economy=the functions of the pieces should be optimal.

And after all my efforts I can't see the 3rd capture of bQ. Am I blind or what?
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+1 #4 Diyan Kostadinov 2013-08-16 16:56
Oh, Nikola, of course you are right - there are "only" two captures of the bQ (maybe I need a rest after so many sleepless nights during the high season on bulgarian seacost...) but there are promotions of wQ on three different squares.
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+2 #5 Nikola Predrag 2013-08-17 02:43
Kenneth had mentioned bQ captured on 3 squares and in the first moment I have also trusted him.
There is no need to compose a chess problem to show Queen promotions, we can see them every day in many blitz chess games.
3 promotion-squares of one Pawn can make it special but the addition of a fairy condition should present something much more special. Self-defending wQ is OK but the rebirth of a captured thematic black piece should have some purpose. Perhaps a rough example might illustrate what I mean. Mirror-Circe-rebirth can be used for active selfblocks, a kind of 'Chumakov' in each phase:
W: Pe6 Ka2; B: Bd8 Re8 Qd7 Kg7 Pf6
H#2; MirrorCirce; b)Re8>f7; c) Kg7>d8
a) 1.Rxe6[+wPe7] exd8Q[+bBc1] 2.Bh6 Qg8#
b) 1.Kh8 exf7[+bRh1] 2.Rh7 f8Q#
c) 1.Ke7 exd7[+bQd1] 2.Qd6 dxe8Q[+bRh1]#
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0 #6 Diyan Kostadinov 2013-08-17 02:59
Your idea to include active selfblocks by the captured and reborn black pieces is very nice Nikola! Here is a link with the diagram of your version: prntscr.com/1lplpe

I hope that the twin in "c" (movement of bK with removing bB) can be improved...
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0 #7 Diyan Kostadinov 2013-08-17 03:10
I received note from Janos Csak that his main idea is the presentation of Qd8-d5 step by both Queens, which is missed in the proposed version by Kenneth.
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0 #8 Kenneth Solja 2013-08-17 17:05
Diyan, it is not missed, because it is in setplay and in the first solution in my version.
My intention was make it only with one fairy condition instead of two different fairy condition. It wasn't suppose to be anything special, because I tried to honour composers ideas in the first place. I'm sure this can be made more complicated and show something special if wanted.
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0 #9 Diyan Kostadinov 2013-08-17 17:53
No Kenneth, in the Set play in your version the bQ go to d5 from d1 (instead of d8), so there is not white/black Queen d8-d5 steps (which was the author's main idea according his words). But you are right that more complicated strategy can be included - look at the idea of Nikola Predrag where all black reborn pieces make an active blocks.
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0 #10 Nikola Predrag 2013-08-17 22:33
The example only illustrates the idea, it is the first correct position. I tried to keep 3 different promoting squares and 3x4 different moves. Actually, avoiding of a zero-position was a lucky suprise.

Black/White Qd8-d5 with mixed conditions
could be more economical (with the different motivation for the repeated move 1.Qe7/2.Qe7):
W:Pd6,Pe5,Kg4,B:Qd7,Ke6;
H#2;a)Circe;b)PWC
a) 1.Qe7 dxe7[+bQd8] 2.Qd8-d5 e8Q#
b) 1.Qxd6[+wPd7] d8Q 2.Qe7 Qd8-d5#
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