About Board Duel

🎯 What is this?

A board game battle site focused on chess-style gameplay and strategic thinking. Curated pure strategy games, free to play, privacy-first, with independent accounts, leaderboards, and skin shop. 5 minutes per game, train your brain daily.

🎮 Puzzle Games

• ⭕✖️ Tic-Tac-Toe — Classic 3×3, connect three in a row to win
• ⚫⚪ Gomoku — 15×15 board, connect five to win
• ➕ Sum=15 Math Game — 3×3 fill 1-9, make rows/cols/diagonals sum to 15
• ◐◑ Othello — 8×8 flip game, trap and flip opponent pieces
• 🔴🔵 Connect 4 — 6×7 gravity drop, connect four to win

✨ Features

• 👤 Independent accounts — Leaderboard competition, win streaks, skin shop
• 🚫 Free to play, privacy-first — Zero distraction experience
• 📱 Phone/Tablet/PC — Responsive design
• 🤖 AI battles — Multiple difficulty levels

🎓 Why focus on "digital logic"?

• Brain training — Each game trains specific cognitive abilities (logic, reasoning, spatial sense)
• All ages — From 8 to 80 can play
• No pressure — No stamina/time limits, play as long as you want
• Mathematical beauty — Chess symmetry and number patterns all follow mathematical principles

🔧 Tech Stack

Pure frontend HTML5 + CSS3 + JavaScript, deployed on Cloudflare Pages, backend logic via Cloudflare Worker for account/leaderboard/shop APIs. Play without login.

📞 Feedback

For game suggestions or questions, contact mathduel@foxmail.com.