Intermediate · 3–8 hours

Merge Tide (2048-style puzzle)

Swipe-merge puzzle with undo and juicy tile motion — feels “product polished” when done right.

Stack hint: Vanilla or light React · CSS transitions

About this prompt: It is a brief for you to run in a builder or editor (Lovable, Grok Build, Cursor, etc.). We do not auto-run every prompt into a live app on this site — quality depends on the model and how carefully you iterate. Prefer projects marked with a verified pass or demo when you want a known-good reference.

Milestones

4×4 board + merge rules
Keyboard and touch swipe
Score, best, win/endless
Undo one move + new-game confirm
Tile animations

Starter prompt

Merge Tide (2048-style puzzle) · starter

Brief Build Merge Tide, an original 2048-style merge puzzle (do not brand it 2048). Ocean theme, 4×4 grid, swipe + arrows, score/best, one-step undo, accessible score announcements, smooth tile transitions, mobile-first single page.

Constraints Keep scope finishable. Document env vars. No secrets in client code. Prefer accessible UI. List assumptions at the end.

Hardening notes

Test swipe sensitivity on real phones
Ensure undo cannot desync the board state

Full checklist: Production reality & hardening.

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