A Master of Go

A Master of Go

powered by that neural network

79 ratings
156 reviews
$3.99
In-App Purchases

Price history


Details

Released
November 16, 2018
Updated
October 27, 2026
A Master of Go screenshot #1 for iPhone
A Master of Go screenshot #2 for iPhone
A Master of Go screenshot #3 for iPhone
A Master of Go screenshot #4 for iPhone
A Master of Go screenshot #5 for iPhone
A Master of Go screenshot #6 for iPhone
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About

This app provides a powerful Go AI opponent and teacher, utilizing advanced neural networks for strong gameplay. It offers high playout speeds comparable to desktop computers, making it suitable for both casual play and serious study.

✓Neural network Go AI
✓Strong opponent
✓Study tool
✓High playout speeds
✓Multiple AI weights supported
✓Offline play
Show original description
+1

What's New in A Master of Go

8.0.0

October 27, 2026

This is a major update. 1. Added Liquid Glass support. 2. Added a global Go news feed feature. 3. In analysis mode, candidate move colors now use win rate instead of visit count. 4. In analysis mode, the top candidate move was cyan; it is now shown with a cyan outline. The highest-policy move was white; it is now shown with a white outline. 5. AI information is now visible in landscape orientation. 6. Removed the hassle of restoring with the "Reproduce" button after every update. 7. WideRootNoise can now be changed in analysis mode on iPhone as well. 8. The AI engine can now be stopped in analysis mode.

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Subscriptions & In-App Purchases

$19.99

KataGo Engine

unlocks KataGo engine

User reviews

対局後の検討に使えるのか?

SGFファイルの貼り付け方がよくわかりません。検討に入る前に躓いています。

2000円じゃなかった

【追記】
そもそも買った私のこと全く考えてないのが筒抜け

KataGoを使うための総額として本来は3700円なのに2700円と1番目立つところに表記をしていて総額は以前と変わらないですよ。のコメント返しはおかしい

法律違反レベルだし、昔の話しなんてこっちからしたら知らんそんなのとなります。

1000円なので我慢しますけど残念

—————-
画像にKataGo2000円と書いてあるのに3000円だった…まじか

Response from developer

アプリのご利用ありがとうございます! また値段の件、申し訳ございません。 年々、アプリ本体価格を値下げして、KataGoを値上げする価格調整をしています。 画像はかなり古いものでした。 総額は3、4年前から変わりませんですのでご容赦ください。 次回、画像更新します。

검토 버그

업데이트 이후 검토모드에서 뒤로가기가 안되요 빨리 수정해주세요

手順を進められない

アップデートしてから手順を進める矢印▶️ボタンが機能しなくなっています。
良いアプリなので改善お願いします。

Response from developer

アプリのご利用ありがとうございます! ご不便おかけしております。 不具合を直したバージョンを申請中です。 少しお待ちください。

제목없음

갑자기 안돼다가 수를바꿔서 하니까 갑자기 꺼져요.어떻게 해야돼요?

Developer apps

FAQ

What is A Master of Go?

A Master of Go is a mobile application that features a strong Go AI powered by neural networks. It serves as both a challenging opponent and a valuable tool for studying the game of Go.

How fast is the AI in A Master of Go?

The playout speed varies by device. For example, on an iPad Pro with an M2 processor, it can perform over 650 playouts per second with ELF OpenGo weights, and over 250 playouts per second with KataGo. This performance is comparable to desktop computers.

Can I play A Master of Go offline?

Yes, the app functions as a strong opponent and teacher, which implies it can be played offline without an internet connection.

What AI engines does A Master of Go use?

A Master of Go supports several strong, open-source AI engines including Leela Zero, ELF OpenGo, PhoenixGo, Minigo, SAI, and optionally KataGo, with various weights included.

Is A Master of Go suitable for beginners?

While the AI is very strong, even older devices like an iPhone 6 can run the AI at about 1 playout per second, which is stronger than most amateurs. However, the developer notes that misreading ladders may increase on older devices.

What devices does A Master of Go support?

A Master of Go is available on iPhone and iPad devices.

How much does A Master of Go cost?

A Master of Go is a paid application, priced at $3.99.

When was A Master of Go last updated?

The latest version of A Master of Go is 8.0.0, and it was last updated on October 27, 2026.