It remains to know why "Bala's solutions" are unsound. It seems the move 2.nrBb5=nrS(+nPa4) is illegal. Indeed the possibility a4xrSb5…
Julia, The definition of Einstein Chess (though known) is missing. Further, it looks that there are cooks: (a) 1.nrRa4=nrB (+nPa7)…
Yes, that is a hidden beauty of your problem. In fact I tried to find if there is any cook…
White and Black have to play exactly the same moves. Each side has 5 possible sequences (the S move can…
The twinning seems to be missing from the stipulation - presumably b) nRa7>d7 ?
Sebastien, you may like to see these three. brBd7 h#2 sent pionad (b) B > Ro [0+1] wrRd4 brRe5 h#3…
In case it escapes notice I should have remarked that without a P on e6 there is no mate.
Good Sebastien and thank you for the Dedication. I would mention that my 620 is not to do with an…
Peter Haris has always innovative ideas for his problems. This one is exceptionally good to conceive the imagination that a…
Interesting. But the fairy condition merely eliminates cooks!