This game is bilingual.
Awards: Best educational game (2025)
Want to improve your math skills?
This is the game for you!
D Code is a powerful teaching toolrecommended by teachers and orthopedagogues
As you play, you'll develop your logic, numeracy and math skills - without even realizing it.
And if you find it fun and easy at the same time... there's no doubt about it: maths is for you!
CONTENTS
96 challenges printed on 48 double-sided cards.
4 coloured and numbered dice.
4 white dice with operation symbols: addition, subtraction, multiplication and division.
The rule book.
The solutions booklet.
GOAL OF THE GAME
There are question marks on each challenge card. The player must place a die on each of these signs so that :
1. All the equalities on the challenge card are true.
2. All logic clues in the section at the bottom of the challenge card are respected.
THE CHALLENGES
The 96 challenges are grouped into 4 levels of 24 challenges each. The first level is accessible to children aged 7. The last level is demanding, even for adults.
SOLUTIONS
Each challenge card has a unique solution presented in the solution booklet.
EXAMPLES
Here are illustrations of some challenges and their solutions
Number 7 - Level 1
Number 28 - Level 2
Number 49 - Level 3
Number 7 - You have a numbered red die and a white die with the 4 operations. You have to place the white die with the right operation on the white circle and the red die with the right number on the red square. The operation must be exact
Number 7 - solution - The solution is obviously 5 - 2 = 3. Easy for an adult, but not so easy for a 7-year-old. Try the next one and see!
Number 28 - You have one red, one blue and one green numbered die and two white dice with the 4 operations. You must place the white dice with the correct operation on the white circles and the three numbered dice on the squares. You are given the location of the green dice. Both operations (horizontal and vertical) must be correct, and the green die must be larger than the red die.
Number 28 - solution - Finding the solution is not a matter of trial and error, but of logical reasoning. The only way to get 30 is by multiplication, and the only way to get 11 is by addition. This allows us to place the two white dice. The green die must be larger than the red one, and this is only the case if it is assigned the value 6. The red and blue dice then need to be placed. Red has to be 5 to be smaller than green, so it goes on top of green. The blue dice, which must be 6, is placed on the last available square.
Number 49 - You have one red, one blue, one green and one yellow numbered die and three white dice with the 4 operations. You have to place the white dice with the correct operation on the white circles and the four numbered dice on the squares. You are given the location of the green and blue dice. You are also given the top operation, which is division. All three operations (one horizontal and two vertical) must be correct, and the red die must be larger than the green die.
Number 49 - solution - Tip: Start with the most useful index. Getting 3 by division can only be 3 divided by 1 or 6 divided by 2. But if you put 1 at the top right, you'll never get 12. So it's 6 divided by 2 and the right-hand column will be 2 x 6. Keep going...
PLUS
Additional dice sets are sold separately for teachers who want to use the game in their workshops (see category Z3).
