problemists造句

Problemists have also tried to construct the shortest possible game ending in stalemate.
The arrangement of the black rooks and bishops, with a pair of adjacent rooks flanked by a pair of bishops, is known to problemists as Grimshaw interferences.
The device in the last example above, in which a sacrifice occurs on the intersection of the defensive lines of two differently moving pieces, is known to problemists as a " Holzhausen and Wurzburg-Plachutta.
It's difficult to find problemists in a sentence. 用problemists造句挺难的