Block Out Levels 259–261: Keep a Sorting Space Open

For Block Out levels 259–261, prioritize sorting accessible single-color stacks and try to keep a tube open as workspace. The available guidance does not provide level-specific board layouts or exact move sequences, so use these as general sorting priorities rather than a guaranteed walkthrough.

1. Sort accessible single-color stacks when doing so helps open space for other blocks.
2. Before moving blocks from a mixed stack, check whether the move leaves room to continue sorting.
3. Use an open tube to temporarily hold blocks that are covering colors you need to reach.
4. Recheck the arrangement after each move. If you fill the available workspace, look for a way to free it before making more temporary moves.

For level 261, the draft specifically advises checking which colors sit at the bottom of each tube before choosing a move. Apply the same check to levels 259 and 260 when deciding which blocks to uncover.