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]…
760 here: https://juliasfairies.com//?s=760.
What I remember is that in version 4.69 I discovered several bugs (not only in Extinction chess, nor PGs) even…
Ah well! It looks like you achieved two at least (Popeye [4.63,4.77] confirms it sound if after 9.5 moves in…
Problem 760 was an attempt to show 4 Schnoebelen Kings.
Bernd Gräfrath has shown a Schnoebelen King before in my column (The Problemist, Nov. 2014; solution May 2015) using Losing…