Description

Yoku is a game to keep in training themindsimilar to the game of magic square.

The aim is to find the expression that produces the resultshownon the outside of the grid square.
Conversely magic square but the results can all be different andaredifferent in number depending on the level.

The game is played on a grid 4 X 4, then the expressions areofsimple type (single operation).

The expression must start with a digit and must be valid.

You can get a hint to know some of the numbers that make upthesquare.

Easier to play than to explain, ... or not :-) ?

Have Fun !