Monkey Pod Wood Rubber Wood Pento Chess Puzzle, Model Number : GP127C

One of the oldest poly form wood puzzles in a chessboard form.
Similar to the Soild Pentominos the Pentominos Chess brainteaser contain 12 pieces; each consisting of five squares joined edge to edge forming different shapes.
You may find the shapes of the alphabet letters:I,L,P,T,U,V,W, Y,Z. the F looks like it had an accident and N takes some imagination.
The Pentominos Chess offer great challenges to the puzzler, For example:
Try build a rectangle size 6x10 - This rectangle has 2339 different solutions.
A 3x20 rectangle has only 2 solutions.
A 4x15 rectangle has 368 solutions.
A 5x12 rectangle has 1010 solutions.
A 5x4x3 cube has 3940 solutions.
A 6x5x2 cube has 264 solutions.
A 12x3x2 cube has 12 solutions.
The puzzle comes complete with a box and a lid so that the pieces can be stored away for safe keeping.