Phantom Butterfly or O

This is related to Phantom Offset C/L/W, in that each person deduces their own distorted or disconnected setup out of an arbitrarily populated larger setup.

This is done in a 4x4 matrix. Each person deduces whether they are on Butterfly spots or "O" spots, and does the appropriate call.

\syhBBBBs{b4n,.+.,.+.,g4n,b1n,.+.,.+.,g1n}	\syhBBBBs{.+.,b1e,g1w,.+.,.+.,b4w,g4e,.+.}

before Phantom Butterfly or O Stack Box Checkmate	after