There are several reasons why an exercise doesn't appear as correct when you press the ▶ button.
First, make sure you have the correct solution. You can always press the Instructions button in the top right-hand corner to confirm that you've followed all the steps correctly.
In some games, the play area is quite large, and it's possible that some of the blocks you used in your game are "hidden". In this situation, the level will not appear as correct.
Use the horizontal and vertical navigation bar to look for blocks that might be lost.
Navigation Bars in the Block Puzzle Game
By deleting them, you can retry to confirm your blocks by pressing the ▶ button.
Alternatively, you can at any time press the broom button, which will cause all the lost blocks to reappear on the main screen.
If after trying these instructions your exercise still shows up as wrong, please contact our team using the Talk with us button or the email address hello@ubbu.io.
