Pebble Depths

Tune all three numbered resonators. Each needs a THROUGH-DEPTH fusion making tier3 or higher at its exact row and column, touching its layer as either partner. Surface fusions never tune a resonator. The middle resonator sits one row above the floor: build a foundation to align partners there.

Choose Front, Middle or Back, then a column. Equal pebbles beside each other or at the same coordinate in adjacent depths fuse into the incoming pebble, raising its tier by one. Depth first checks adjacent layers before surface neighbours; Surface first does the reverse. The preview shows the complete resulting chain and any resonators it tunes. Front cannot fuse directly with Back.

After the entire chain, each depth settles downward independently. You have30 drops; incoming tiers repeat1,1,2. Full columns cost nothing. Rewind restores the last drop, even after an ended expedition, so experiments are recoverable. Three bowl arrangements cycle with Next bowl. Tap native buttons; board arrow keys select a column. Retry resets the current arrangement.