To solve an Addoku, use only the numbers from 1 to 9. The numbers in squares linked by a coloured line must add up to the total given in the top left-hand corner of the set of linked squares. No individual number is repeated in any of these sets of linked squares.
Similar to Sudoku, the numbers 1 to 9 must also appear in:
- Each of the nine vertical columns
- Each of the nine horizontal row
- Each of the nine 3 x 3 boxes
Use the mouse to click up (or down) through the numbers 1 to 9 in each square. The small black arrows on each side of the square tell you whether you are counting from 1 up to 9 (right arrow) or from 9 down to 1 (left arrow).
Using your keyboard, you can type in up to eight practice numbers below the line at the top of each box.
When you have correctly completed a linked set of cells, that area fills with colour and any practice numbers will disappear.
Game Options
PRINT: Click to print your Addoku
- Available to YouPlay Premium Members only
- Selected puzzles only
SAVE: Click to save your Addoku
- YouPlay Premium Members receive 10 save slots
- YouPlay Members receive 3 save slots
PAUSE: Click to halt the timer if you wish to pause during game play
EXIT: Click to return to the Game Selection page
UNDO: Undo your moves one click at a time
CLEAR GRID: Undo all moves and start the Addoku again
Game Features
Token Counter
Displays how many tokens you have won during the game
Timer
The timer starts as soon as you open the Addoku
YouPlay BOOST
Boost your score – multiply your points by working faster and smarter
Hints
Click to add an extra number to help you solve the Addoku
- YouPlay Premium Members receive 5 hints
- Youplay Members receive 5 hints
