Small challenges

Tower Stack

A timing challenge where each landing changes the size of your next target. Build height while keeping as much of the platform as you can.

Choose Let's stack, then tap the moving-block area or use Drop block. With the block area focused, Space or Enter drops it too.

Try this: Watch the platform edges rather than the falling scraps. The block travels along alternating axes on successive floors, so recheck its alignment after every landing.

Water Sort

A planning puzzle about freeing space, not pouring quickly. Separate the mixed layers until each occupied bottle holds one complete color.

Select a bottle, then select the destination. Selecting the same bottle again cancels the selection. Use Undo to take back the last pour.

Try this: Before using an empty bottle, check what color the pour will expose underneath. Empty space is most useful when it frees a blocked color.

Screw Sort

A layered matching puzzle with a seven-slot collection tray. Clear sets of three while opening access to the plates below.

Tap or click an exposed colored screw to move it to the tray. Undo returns the last screw; Hint highlights an available screw and uses one of the level's three hints.

Try this: Look for the third screw of a color already in your tray before collecting a new color. Finishing a set immediately frees three slots.

Super Blocks

An eight-by-eight placement puzzle. Balance immediate line clears against the empty shapes you will need for the pieces still in your rack.

Select a piece and tap a board square, or drag the piece onto the board. For keyboard play, select a piece, focus the board, move with the arrow keys, then press Enter or Space.

Try this: Check all three shapes before committing the first one. A placement can score points while leaving no landing space for the remaining pieces.