No.1478 
Geoff Foster
(Australia)

Original Fairy problems
JF-2020/I:
January – June’2020


Definition: (click to show/hide)


No.1478 Geoff Foster
Australia

original – 05.02.2020

Solution: (click to show/hide)

white Ka5 Bd1 Se5f5 black Kd5 Qc4

h#8             2 solutions             (4+2)
Black Must Check


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François Labelle
François Labelle
7 months ago

“Black must absolutely check” would be a better translation of BlackUltraSchachZwang. “Black must check” already exists with a different meaning, according to the Problemist Glossary.

Also, the definition of BlackUltraSchachZwang given here is missing the statement “Stalemate and mate remain orthodox” found in the PDB definition. This is important otherwise there are short solutions like 1.Qc7+ Kb4 2.Qe7+ Sxe7#.

seetharaman kalyan
seetharaman kalyan
7 months ago

Seems without the fairy condition also the solution will as it is helpmate.