An implementation of this paper
/ NP-hardness proof
Gadgets
- Split
- OR
- AND
- Crossover
- Big, correct padding, but not enough
- Big, full padding, but blanks instead of bubbles
Instructions
- Aim with left/right arrow keys. Hold shift to move slowly.
- Shoot with spacebar.
- Use A/S/D to aim at 45/90/45 degrees.
- Ball sequence is shown at the bottom.
- Use Z to toggle more/less zoom views (for larger constructions).