If you feel like your brain needs some exercise...

If you're looking for a smart challenge...

If you have an hour to build something cool...

i give you....

The SudoKube!!

A 3X3 Rubik's Cube, with Sudoku on each side.

Step 1: What You Need

here's a list of what you need:

1. Rubik's Cube (can be old, or cheap, or just one you can ruin without regrets)
2. Stickers that you can write on

Step 2: Strip the Cube

Second step is to clean the cube. Meaning:

Peel the color-stickers off
Clean excess glue and sticker-traces that's left (with solvent or detergent - just don't use a lot)

You'll end up with a bare cube, black plastic only.

(if you love your cube - solve it for the last time before you undress it..)

Step 3: Make Sudoku Stickers

1. Measure the size of one corner cube (mine was 2.1 cm X 2.1 cm)

2. Prepare 54 square Stickers (3X3X6=54)
maybe you can find ready stickers
I had to cut mine out from larger stickers

3. Make 6 sets of stickers with 1,2,3,4,5,6,7,8,9 on them (Sudoku is 1-9.. right?)
Don't forget to underline 6 and 9 to distinguish between them!

Step 4: Stick 'em Up!!

Last thing you need to do is:

Stick a set of sudoku numbers stickers on each side of the stripped Rubik's Cube

(Make sure you stick them well - solving the SudoKube can become pretty violent!

And there you have it!! a home-made SudoKube!!

now...... just solve it!!!
good luck.....

http://nurne.blogspot.com

(does anybody want to make an instructable on solving it?.... heh)