Stipulation asks for any legal play of 6.5 moves ending with mate, where any 28 white or black pieces occupy…
Does the solver have to find the final image only? Or does he have to find the series of movements…
Correction was published p.151, Probleemblad (IX 2011). Michel Caillaud 1 Place, Nunspeet TT 2005 (v) rsbqkb2/pppp2p1/6s1/1PSPp3/PRK5/1B2P3/1P1P4/Q1B1R1S1 PG 29.0 Losing Chess…
Fairy genre means non-orthodoxe, so Fischer Random Chess is allowed. It is also acceptable a series PG (White moves only),…
There's a brilliant double king Ceriani-Frolkin by Michel Caillaud: P1068520. I'm fairly certain Michel published a correction, but I can't…
Does rule b) of TT10 implies that a problem with Fischer Random Chess stipulation is not thematic? As far as…
The earliest King-Schnoebelen is probably http://pdb.dieschwalbe.de/search.jsp?expression=PROBID='P1084841'
No white queen promotion. Personally, I think the chance of this being correct is less than 1%, but it takes…
Thanks Paul. The version where the diagram position is given after the mating move will be discussed here: http://www.france-echecs.com/article.php?art=20170617140145772
Grafath's problem also has an interesting motive for King promotion, perhaps more subtle than Extinction chess or Royal Dynasty. [img]https://image.prntscr.com/image/UNqtO9r0QXeFwhXwli6Fcw.png[/img]…