Threes is an interesting mind game related to the number three. Your mission is to move the number to create the maximum sum without using all the cells.
This game will force you to take 1+2=3 then you can add these 3s. The game will end when all the tiles on the playing screen are filled, and there is no way to create a new empty tile. Then your score will be calculated based on the numbers that appear on the playing screen.
An interesting point in this game is that you will know in advance the next number will appear. You will see that number in the position as circled in orange above the picture. Red means the next number to appear will be number 2, blue is number 1 and white is number 3. However, to increase the difficulty of the game, sometimes there will be random other numbers that appear.
In the game, you can use the left mouse to move between cells. Moreover, the arrow keys also have the same function. You can use them to control the game.