Sudam - Play Go with AI

Sudam (手談, "hand talk") is an old name for the game of Go — a conversation held with your hands.
The AI runs right on your phone, not on a server, so you can play a game anytime without worrying about disconnects.

■ An opponent that matches your level
· Choose any rank from 18 kyu to 9 dan, or "Strongest" to face the AI at full strength.
· Pick a rank and the AI plays like a person of that rank.
It isn't a strong engine crippled into making random moves. The AI learned from human games, so it plays the kind of moves a player of that rank really makes.
· Step up or down one rank at a time with the − / + buttons. Your choice is remembered the next time you open the app.

■ Games that never cut out
· The AI thinks on your phone, so a slow or lost connection never stops your game.
· Pick up an unfinished game anytime with "Continue game".

■ No misplaced stones
· The spot you tap is shown first, and the stone is placed only when you tap "Place Stone". No more slips of the finger.
· Spread two fingers to zoom in on the board. While zoomed, a mini-map shows the whole board.

■ AI review after every game
· A score graph shows how the game flowed at a glance.
· Up to three key moments where you lost the most are pointed out: which move it was, how many points it cost, why, and where the AI would have played.
· You also get a summary of each side's territory and captured stones.

■ Korean rules
· 19x19 board, scored with Korean rules (komi 6.5).

■ Open source
Sudam uses open source software such as KataGo (MIT License) and Eigen (MPL2). The full license texts are in the app under "Open source licenses".