A Triangular Box consists of a Diagonal Line of 3 and a dancer in a corner position of
the 3 x 3 Matrix defined by the Diagonal Line. Work with these dancers in a Distorted Box.
Triangular Boxes are most commonly used from
Interlocked Blocks [C1].
A Triangular Box is a 4-dancer formation in the following shape:
From Interlocked Blocks, there are two Triangular Boxes:
to find them, divide the formation in half along the phantom long diagonal.
Alternatively, look for a Diagonal of 3, then find the lonesome dancer.