OPEN SOURCE · BY Quinten Clause

Black Hole Square

Clear a tiny universe by sliding arrow tiles and dropping squares into black holes.

15 free puzzles · Mouse or touch

Read the controls ↓

Press Play to load the game from Joywisp. No external game service is loaded.

How to play

Swipe or drag left twice from the title to reach the first puzzle.
Tap X tiles to remove them. Arrow tiles push a line in their direction; move squares into black holes to clear the board within the move limit.
Swipe right to reset after a move, or return to the previous puzzle before moving. Swipe left to skip. The progress dots jump between puzzles.

Controls & screen size

Use a mouse or a finger to tap tiles and swipe left or right. This original game requires pointer controls; keyboard-only play is not supported.

A little tip

Start with the arrows nearest a black hole and watch which direction the whole line moves.

Creator, source & licence

Black Hole Square is by Quinten Clause, hosted here under the MIT licence. It is a third-party open-source game, adapted for Joywisp; it is not a Joywisp original or an endorsed partnership.

Joywisp uses native JavaScript modules, isolates and validates saved progress, and adjusts pointer cancellation and board-edge input. The original 15 free puzzles remain. Payment prompts, bonus puzzles, offline caching and raster icons are omitted. The title uses a system font.

Original source at fixed version Full MIT licence Adaptation notes

Source version: 4a760a0f3d18. The adapted source is in Joywisp’s repository.

Your game data

The current puzzle and completed puzzles are saved in this browser under joywisp.opensource.black-hole-square. Restart player reloads the saved puzzle; a rightward swipe resets a puzzle after a move. Clearing this site's browser data removes saved progress.

Joywisp privacy · Closing or stopping the player ends its running scripts and sound.