Incredibly difficult math mind puzzle: the AIM is to turn the cubes to obtain the sum of 555 in each side of the tower.
This is a real brain teaser for math genius!
Difficulty: 5/6 INCREDIBLE.
Medium resoluton time: 1 hour – 1 year
Dimensions: 6 x 6 x 24 cm / 2.4 x .42 x 9.5 inches. Teak/Samena wood.
Hand Made in Thailand.
PACKAGING: SHRINK WRAPPED WITH COLORED STICKER
LOGICA PUZZLES is number 1 mind puzzles and brain teasers in Italy. wwwcagiochi