Rill: Number Path Puzzle

Rill is a daily logic puzzle you can learn in thirty seconds and play for years.

THE RULE Draw one channel of water through every plot of the field, starting at well 1 and passing the numbered wells in order. Fences block the way. The crops green up behind your line. That's it — no reading, no timers you didn't ask for, no lives.

THREE WAYS TO PLAY • DAILY — one field a day, identical for everyone in the world. Water it, then share a spoiler-free grid that shows where your channel went wrong (or didn't). Streaks count consecutive days. • LADDER — endless levels that grow from 4×4 to 8×7. Every level is the same for every player, so times are comparable. Ranks from Trickle to Ocean; new seasons of the field unlock as you climb. • BLITZ — 90 seconds, as many fields as you can. Every solve adds time. One more round is always a good idea.

MADE FOR YOUR THUMB — AND YOUR iPAD • Drag to draw, drag back to erase. Fast swipes and diagonal jumps are understood. • One practice field teaches the rules; the rest you learn the moment you bump into them. • Hints that rewind you to where the channel went wrong, instead of giving away the answer. • Your puzzle in progress is saved. Come back any time. • Optional daily reminder, and a nudge on the evening your streak is at stake. • iPhone and iPad, portrait or landscape on iPad. Day, night, harvest and paddy themes, sound that rises as your channel grows, haptics on every plot.

HONEST BY DESIGN • No account. No sign-in. Nothing to buy. • Free, supported by ads: no ads at all during your first puzzles, a small banner below the field after that, and full-screen ads only between levels — never in the middle of a puzzle, never between finishing the daily and sharing it. • Every puzzle is generated on your device with exactly one solution.

From Everspring, the makers of Everspring: Immortal Defense.

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