Prism is a daily light-routing puzzle. Lasers shoot colored beams across an 8×6 grid — drop mirrors, prisms, splitters, and filters from your tray to bend the light onto every target, in the right color. One puzzle a day; everyone gets the same one. Solve it fast and with fewer pieces to top the daily share score.
Work backwards from the target — figure out what color must hit each receiver, then trace the beam back to a laser. Prisms split white light into RGB; filters subtract a channel. If a target wants green and you have a blue laser, you'll need a yellow filter on the path. Use as few pieces as possible — every piece you add hurts your share score. Solve the trivial targets last; the hardest target usually defines the whole route.
Hit the Fullscreen button in the bar above the play area to expand. To exit, press Esc (or swipe down from the top edge on touch) and tap the Exit button that slides in.
Prism rewards methodical deduction. Instead of guessing at the whole board, lock down the constraints that have only one possible answer, then use those solved pieces to reduce the rest. The satisfying moment is when a messy color problem collapses into a clear chain.
The daily structure makes the puzzle comparable without making it disposable. A known pool means each challenge can be curated for a readable difficulty curve, and the calendar gives returning players a visible record of solved days.
Step away from the most crowded area and look for the smallest unsolved region. Often the missing clue is not where the board is loudest; it is at the quiet edge where one color or shape has only one legal home.
