If you've never played Sudoku, there's a few points worth mentioning:

1) simple in concept
2) highly addictive
2) the numbers are just pattern-recognition placeholders; there's no arithmetic involved.

So, why not make use of it. Many religions already have things like "ninefold path",
or "nine arms of the Flying Spaghetti Monster" etc., all complete with moral details. And if they don't it's easy enough to make stuff up.

Anyways, the idea is to use the game, in its most common iteration (9) or others if appropriate (4, 16, etc), substituting symbols in place of the more common numbers.

Wiki: Bharati Krishna Tirtha's Vedic mathematicshttp://en.wikipedia...s_Vedic_mathematics Vedic mathematics is a system of mathematics consisting of a list of 16 basic sûtras, or aphorisms. They were presented by a Hindu scholar and mathematician, Bharati Krishna Tirthaji Maharaja, during the early part of the 20th century. Though not directly linked to the passtime of soduku, it's all maths, and in this case, religion too. [zen_tom, Dec 07 2011]

Check out Hindu's "Vedic Sutras" - a system of mental arithmetic reputed to have been rediscovered hidden in ancient religious texts at sometime between 1911 and 1918.

Vague Proberbs are in full effect.
e.g.
"All from nine and the last from ten"
"Whatever the extent of its deficiency, lessen it still further to that very extent; and also set up the square of the deficiency"
"By mere observation"
"Vertically and crosswise "