Learn

Lessons, puzzles, and analysis are in the sidebar under Learn. Openings are coming soon.

Lessons 1–10 and Advanced leftover-count lessons are authored and checked by the game engine. Openings are coming soon.

New to the game — start at How Drop Four Works (lesson 1). Knows the rules — skip 1–5 and start at Why the Center Matters (lesson 6). Experienced players: Advanced, then puzzles. Openings are coming soon.

Open lessons

Sign in to save completion. Lessons 1–10 work without an account.