I am astonished that Popeye 4.73 supports Provocation Chess, because the associated helpfile does not list this condition!
You are right! IBlack defences using no-capture rule and white's unique route being forced depending on black's plan is interesting.
No. White: Kh1 Ra7a2 Black: Bb7 Sa8 White can mate a royal dummy on g7 in one, but can't reach…
Reaching a square in N moves is strictly equivalent to checkmate an immobile King on the same square in N-1…
If we assume a immobile king at g7, the problem is a #4!
Unusual stipulation... nicely used to show his recently favorite theme!!
To my current knowledge, this is a task: the longest Proca Retractor AntiCirce Wenigsteiner. The previous record (18 moves) was…
Dear Sebastien, many thanks for the info with cook to Nojek's problem. I made a note of it in PDB.…
Dear Erich, the following problem is cooked : Best Sebastien White : Kd3 Pc2 Black : Kh1 Rg2 Bf3 Se4…
Yes Arno, there's the point. The thematic bRg3/bPg2 in your masterpiece make a reciprocally functioning mechanism. And it's indeed surprising…