Goal: Efficiently sort the blocks into the smallest number of identically colored stacks.
Move Blocks: Click a stack to select it and then click another stack to move as many blocks as possible to this stack, subject to the following rules:
The ending stack is either empty or the top color matches the top color of starting stack.
There must be space above the ending stack, and as many blocks of the top color that fit are moved together.
If the stack is colored, then only that color can be moved there.
Hidden Blocks: Some games have hidden blocks, and they will be revealed when the blocks above it are moved. Once they are revealed, they will stay revealed for the rest of the game (even if using undo).
Locked Blocks: The locked blocks provide extra space if needed. Clicking the lock will unlock the bottom-most locked block.
New Game: The New Game button will start a new game with a different random configuration.
Save Game: The Save Game button will download a file that saves your current game configuration and progress.
Load Game: The Load Game button allows you to upload a previous save file to continue where you left off.
Reset Game: The Reset Game button will reset the game to the initial starting conditions with the exact same blocks (even if they were hidden).
Undo Move: The Undo Move button allows you to undo any number of prior movements. Unlocking blocks cannot be undone.
Unlock Block: The Unlock Block button will unlock a locked block, similar to clicking on the locked block.
Hint: The Hint button will perform the next optimal action.
Scoring: There are 3 modes for scoring:
Cozy: There is no scoring; just complete the puzzle at your leisure.
Normal: You start at a score of 100 plus the minimum cost to complete the puzzle. Moving a set of blocks does not incur any cost. Undoing a movement costs 1 score per undo. Unlocking a block costs 10 score per unlock.
Hard: You start at a score of 100 plus the minimum cost to complete the puzzle. Moving a set of blocks costs 1 score per movement. Undoing a movement costs 2 score per undo. Unlocking a block costs 20 score per unlock.