3-minute start

Solve one puzzle, then let AI explain why

No registration wall and no long tutorial. Pick a starter level, place one move, review the feedback, ask the coach, and turn this session into tomorrow's review.

Beginner25 kyu - 3 kyu Intermediate1 kyu / 2 kyu / 1 dan / 2 dan Advanced3 dan - 7 dan

Find the group under pressure

Place one candidate move

Review and save it

Try the core loop first

AI explains from board context

Mistakes become review material

Starter pool · 1287 coach-ready puzzlesBasic19×19Difficulty ★★★★★

Black to play — tesuji

Black to play · Tap an empty intersection to place a stone

Layered hint

First identify the target shape: which group needs to live, die, or find a tesuji?

Coordinates use (x,y) with the top-left as (0,0). 19x19 puzzles may show only a local corner.

Shortcuts: Arrow keys move the cursor · Enter or Space places a stone · R resets · Esc clears the current move