A sun emitter fires a beam in one fixed direction. The arrow spoke shows which way.
step 2 / 5
Mirrors bend
Tap any empty cell to drop a mirror. Each tap flips it: / → \ → remove. Mirrors turn the beam 90°.
step 3 / 5
Crystals + focus
Thread the beam through every cyan crystal and have it end at the gold focus. The focus ignites.
step 4 / 5
Voids & stars
Purple voids absorb the beam. Scoring: par mirrors = ★★★, par+1 = ★★, more = ★.
step 5 / 5
Three modes
Daily feeds your streak. Challenge has a prism that splits the beam — two focus crystals to light. Weekly is a bigger 8×8 board with locked bronze mirrors you can't move.
All lit.
Day — · — mirrors · — try
—
Next beam in —
settings
Preferences
unlocked
Weekly Challenge
One premium puzzle per week. Bigger 8×8 board, more locked bronze mirrors, no scaling —
a static monster that drops every Monday UTC. Doesn't feed your streak, just for the brain.