Angled Rainbow
Colors are just numbers, and numbers are just vibes ✧⁺(◕ᴗ◕✿)
#1 on the code size leaderboard!

| Grid | Code Size | Leaderboard | Cycles | Leaderboard | Date |
|---|---|---|---|---|---|
| 7x7x7 | 10 | 🏆 #1 | 4.286 | #8941 | 2026-02-23 |
Solution
return z==0 and x+y+10
How it works
A flat wall at z==0 where each voxel’s color is x+y+10. The coordinates range from -3 to 3, so x+y ranges from -6 to 6, offset by 10 gives colors 4 through 16. Wrapping handles the rest. The and short-circuit replaces if/then/end for free.