No.783 (DN)

No.783
Daniel Novomesky 
(Slovakia)

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No.783 by Daniel Novomesky – PG with a chain of Circe rebirths, demonstrating condition Pongracz Circe. (The condition is invented by Ludovit Lehen cannot be tested yet by any solving software). (JV)


Definitions:

Pongracz Circe: Like Circe, but a captured unit is reborn on its Circe rebirth square, even if this square is occupied, and the occupant reborn on its own rebirth square (it does not vanish), and so on in a chain of Circe rebirths, until a free Circe rebirth square is finally reached.

Circe Vertical Mirror: same as Circe, except that the rebirth square is on the vertical mirror from the normal place.

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


No.783 Daniel Novomesky
Slovakia

original – 19.04.2015

Solution: (click to show/hide)

white Bf1c1 Ke1 Qd1 Ph2g2f2e2d2c2b2a2 Sg1b1 Rh1a1 black Bf8c8 Ke8 Qd8 Ph7g7f7e7d7c7b7a7 Sg8b8 Rh8a8

PG 5,5                           (16+16)  C-
Pongracz Circe Vertical Mirror


6 Responses to No.783 (DN)

  1. Kjell Widlert says:

    This fairy form has been invented before, possibly by Xavier Yzarn (nothing is new under the sun…). It was then called Circe Téléscopiques or Ultra-Circe. WinChloe contains four such problems, all by XYz.

    • I believe it is not entirely the same fairy condition. Circe Telescopiques seems to be limited to chains with alternating colours of reborn pieces, while Pongracz Circe does not care about colour. When Pongracz Circe was invented, I have pointed similarity with Telescopiques as well, having it stored somewhere in my mind since reading entire run of original Rex Multiplex from 80s in 90s.

      • Kjell Widlert says:

        It seems you are right, Juraj! All Yzarn examples in WinChloe have rebirths with alternating colours.

  2. daniel_novomesky says:

    Would it be difficult to include Pongracz-Circe in the next Popeye version?

  3. Joost de HeerJoost de Heer says:

    What happens if an infinite rebirth chain is reached? (e.g. Kc2/Rb1a8, Kc2xRb1->a8->a8->…). The definition doesn’t mention this at all.

    • There are two different versions (for both a set of published problems exists):
      – is such move is executed, the position is deemed drawn and the play ends (“default” Pongracz Circe)
      – capturing move causing such infinite loop is illegal (Pongracz Circe type L)

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