The classic, with a real opponent.
Drop discs into a 7×6 grid and connect four — horizontally, vertically, or diagonally. The AI uses minimax with alpha-beta pruning and a 4-in-a-row window heuristic, with three difficulty levels: easy (depth 1), medium (depth 3), and hard (depth 5).
Tap the column bar to drop, or use the 1–7 keys. Press H for a hint that flashes the best column, or N to start a new game. Wins, losses, and draws are tracked per-difficulty in localStorage.
⚙️ Settings & Customization
- Theme
- Language
- Size
- Transparent background
- 🎨 Accent Color
📖 How to embed in Notion
- Copy the embed link from the sidebar on the right.
- Open the Notion page you want the widget on and type
/embed. - Paste the link into the embed dialog and press
Embed link. - Drag the embed's bottom edge to resize it to taste.
🆕 What's new in v1.1
- ✦ 21 languages with RTL for Arabic & Hebrew
- ✦ Three AI strengths via minimax with alpha-beta pruning and center-column ordering.
- ✦ Hint button flashes the best column without auto-dropping.
- ✦ Per-difficulty W/L/D tally in localStorage so each level has its own scoreboard.
- ✦ Keyboard shortcuts: 1–7 to drop, H for hint, N for new game.
- ✦ Animated drop with winning-line pulse on the four connected discs.
- ✦ Random first-mover so the player isn't always first.
More Widgets