Algebra game mark 2
Twelve levels of solving a single linear equation in one unknown. Click on the icons on the left to manipulate the equation on the right. After each level is completed, an icon will appear which one can click on to advance to the next level.
Version 2.1: implemented a limit on the number of moves per level, plus a "Speed bonus" message if one solves the puzzle in the minimal number of moves.
Version 2.1.1: Moved and relayered the sprites to reduce collisions.
Version 2.1.2: Moved sprites some more. Also, clicking on a sprite now moves it to the top (in case of future collisions). Knight also returns to saying "Retry" after running out of moves.
Version 2.1.3: Floating point errors mostly eradicated through "smart" rounding.