The Popeye result when only e8+f8 are Chameleons is correct, not a bug - at least according to Petkov's own…
It's very nice combination of "Alsatian" threat (due to illegal fxg6)+"anti -Alsatian" defences (which legalize fxg6) and the mates after…
The variation 1...PxQ 2.Qh5# does take advantage of the bP-pinning, for Black's potential capture to the right is legal and…
Is "No capture" condition only needed to avoid 11...K:c1 in the final position?
Very interesting problem demonstrating the 'not often used' condition Ultra Patrol. Apart from the typical Ultra-patrol maneuvers I wish the…
Dear Julia, It is a great service you do to the chess world. I wish that you add more fairy…
Nice problem Mr.Rosner ! My comment was about the fairy condition Alsatian Circe. I meant that this Circe condition itself…
It is really a retro, as without retro content it is regular circe !
Well done Linden! You have managed to add a nice key and extra variation too !
a lot of early work in Alsatian Circe was done in helpmate form