Ripple Foundry

Forge an EXACT 8 on anvil A, then an EXACT 16 on anvil B. The required ingot ships automatically after a wave, freeing its cell. Only the current order ships. Larger values are not substitutes.

Select an empty source. Casting plants a 2 there and pushes each immediate neighbor ONE cell away from the source, only along the chosen axes. Empty destinations accept the ore; equal values fuse once. Unequal ore and edges block a push. Farther ore does not move unless it receives a fusion. There is no gravity or automatic chain reaction.

Horizontal and vertical waves are free. Cross waves spend one pressure before pushing all four directions. Every fusion restores one pressure, up to three. A focused wave can leave valuable ore on the other axis untouched.

24 pulses. A full board or exhausted pulses stalls the foundry unless that pulse completes both orders. Undo reverses a wave, including shipping and pressure, even after a stall. Three distinct starting stocks: the first is a gentle introduction; later foundries require building more ore.

Tap a cell, choose an axis, review the ghost values and Cast. Tab/Enter works too. Untimed. Retry keeps the stock; Next foundry cycles it.