[Retros] fractional moves

[per olin]

Hi all!

Note that there has been a discussion concerning incomplete moves ('partial/half halfmoves'). Here one of my problems (PDB 1004346) :

Per Olin, 2nd Hon. ment.  Suomen Tehtavaniekat 1994   Kc7 Df4 pawn g5 - Kg8 Th8 pawns e5, f7, g6,h6 (3+6)   -1/2 bl, then h#1   b) turn 90 degrees   c) turn 180 degrees   

a) Retract: 1. Ke8 (0-0), then 1. Tf8 Dxe5#   b) R: 1. g2xSf1, then 1. Kh3 Dxg3#   c) R: 1. a4xb3 (e.p.), then 1. Ka2 Dxc2#.    

Michael Caillaud has made a very entertaining proofgame with two solutions in x.75 moves (or was it x.25);  can't find it in the PDB.

Best regards

Per

...................................................................
Luukku Plus paketilla pääset eroon tila- ja turvallisuusongelmista.
Hanki Luukku Plus ja helpotat elämääsi. http://www.mtv3.fi/luukku