[Retros] ROBERTO OSORIO’s 55th JUBILEE TOURNEY (RO55JT)

[raosorio at fibertel.com.ar]

ROBERTO OSORIO’s 55th JUBILEE TOURNEY (RO55JT)

Die Schwalbe and Orbit announce the Roberto Osorio’s 55th Jubilee Tourney for orthodox proofgames,

Theme: Embracing non-contemporary twin pieces (see article at http://sanguis.xs4all.nl/chess/RO55JT.pdf ).  Thanks Joost.
The theme can be shown anywhere on the board and the diagram can show non standard material. 
Multiple phases allowed and very welcome.

Evaluation: the problems will be evaluated as a balance of their thematic contents, originality and general 
quality. Please indicate the thematic moves in the solution.

Closing date: june 30th 2009

Director: Jorge Lois

Judge: Roberto Osorio

Entries: to be sent to Jorge Lois <jorgejlois at yahoo.com>  indicating subject RO55JT.

Award: the Award will be published simultaneously in Die Schwalbe and Orbit.
The participants will receive a corresponding copy.