Thanks Joost! Nice line-closing and of course unexpected for those (it's me) who unduly but stubbornly look for the answer…
Because after 11. Rxg1 Sc6, 12. Qd8 results in a recolouring of Sd1.
Dmitri's Py2Web is priceless for such problems. It makes me aware that I don't actually see why not 11.Rxg1/17.Kd3.
Found it: http://anselan.com/CHEP.html
Julia, the n° of this diag is 1146 !
Adrian many thanks to You. The main thing is that the tables do not have problems with open solutions in…
François Labelle's site shows quite a few examples of "at home" SPGs here: http://wismuth.com/chess/statistics-positions.html See under the heading: "At home"…
WOW! Dear Adrian, now I'm sure PG in 5.0 also was C+. But what about: r1bqkbsr/1ppp1ppp/8/8/8/8/PPPP1PPP/R1BQK1SR PG in 6.0 rsbqkb1r/ppp1ppp1/8/8/8/8/PPP1PPPP/RS1QKB1R…
Ya'aqov, your position appears here already: http://wismuth.com/chess/diagrams/at-home09-sol1.txt
I received a reply from France - thanks to Luis! My original position in the collection was not found. Thank…