This is the summary of the manual of the Game of Modern Logic by Layman E. Allen.  The game set includes 36 cubes in two colors, red and blue.  Each color has two kinds of cubes.  I call one of them the small letter cube (small cube for short) and the other the upper letter cube (big cube for short).  The small cube has six letters, p, q, r, s, t, o, i.  The big cube has six letters, A, C, E, K, N, R.  Both small and big cubes have one letter printed on each face (6 letters, 6 faces).  Click on the link below for the instruction of each game.

1. Shake-a-WFF

2. Count-a-WFF