The RayMag pieces are polymultiforms obtained by juxtaposing several copies of the 2 triangles below :
To understand how RayMag pieces are made, let’s start by taking an equilateral triangle of side 3 : We can divide this triangle into 9 small equilateral triangles of side 1 : If we take as unit of area the area of one of these small triangles, the area of the basic triangle is therefore A particular grouping of these triangles by 2 or by 3 gives this cut :
There are three triangles of area This gives :
Hence the following grid with a reduced scale :
For RayMag pieces, the juxtapositions must respect this grid ; therefore there cannot be :
Here are the RayMag pieces in the grid :
There are one piece of area Here are the small pieces with their areas :
The small pieces cover an area of
Note : one of the pieces, RayMag 9a, is a basic triangle. And here it is in the tray :
With RayMag’s pieces, I offer you three kinds of puzzles :
the monoiamond,
