About JoseDog

JoseDog is a free web application designed to help you learn and master sequences in the game of Go (also known as Baduk or Weiqi).

🎯 What is a joseki?

A joseki is a sequence of moves considered optimal for both players, usually played in a corner of the goban. These sequences have been studied and perfected over centuries by Go masters.

Establish a solid position in the corners
Understand fair exchanges
Save time in games by knowing standard responses
Develop strategic intuition

🌐 Where do the sequences come from?

The sequences in JoseDog come from OGS's Joseki tool (Online Go Server), a community-maintained reference curated by players worldwide. The collection covers 1047 sequences ranging from basic openings to advanced pincers.

📖 How to use JoseDog?

Several modes are available to help you progress:

Study — Browse each sequence and replay the sequence move by move.
Quiz — Classic quiz, at your own pace
Chrono — Race against the clock: complete as many sequences as possible within a time limit (2, 5, or 10 min).
Survival — No safety net: limited lives, go as far as you can without making mistakes.
Recognition — Memorize the final position then reproduce the sequence from memory. A visual memorization exercise.
Spaced repetition — Sequences mastered in the Quiz are automatically scheduled for reviews at increasing intervals (1d, 3d, 1 week, 1 month…) to lock them into long-term memory.
Battle Quiz — Challenge your friends in real-time! Create a room or join a game with up to 4 players.

💡 Tip : Start by studying a few sequences, then launch a Quiz to master them. Come back every day to the Review page and complete at least 6 reviews to keep your streak.

📚 Our library

JoseDog offers 1047 sequences organized by opening type:

Hoshi (星) — Star point (4-4)
Komoku (小目) — Small point (3-4)
San-san (三々) — 3-3 point
Takamoku (高目) — High point (5-4)
Mokuhazushi (目外) — Outside point (5-3)
And many more (shimari, pincers…)

🔧 Technology

JoseDog is built with SvelteKit and uses Besogo for board display and interaction. Your progress is stored locally in your browser, and you can create a free account to sync it across your devices. The Battle Quiz mode uses a WebSocket server for real-time matches.