Decimal Falls
Clear twelve digits through six changing sums: 10, 12, 8, 10, 12, 8. Tap two orthogonally adjacent digits matching the current sum. After every clear, gravity changes direction: down, left, up, right, down, left. All remaining digits slide that way, without reordering within a line. Preview the next sum and fall direction before committing; Undo reverses a pair and its slide. No timer or defeat.
Controls & scope
Tap the board or named controls. Tab and Enter/Space operate buttons; R restarts. Undo supports reversible planning; no automatic defeat.
This is an original compact mechanic study, not a copy or full reproduction of the reference game. Research and scope are documented in README.md.
Original code & procedural visuals · Private local collection