Woojong 1 is the virtual-box packing game. Empty boxes can be packed with numbers. There are easy, medium and hard mode.
The next number is shown one at a time from the virtual number warehouse.
A player can put the number only from left to right of each box. Everytime a cell of the box is filled in the specific way, one score is earned and the cell turns to green.
The specific way is numerically ascending or numerically descending way. For example, if a 3-cells box was packed in the order of 3, 4, 9 or 7, 2, 1, three scores are earned.
Each game mode has its own winning goal. 18 game modes in total are ready. '3x3 m.' means three (boxes) by three (cells) and medium."