Hactar Go

Play and study go now!

Game info

Version :

4.0.1

Category :

Board

Update :

April 11, 2025

Installs :

2,993

Developer :

Lauri Paatero

Price :

$3.49

Requires Android :

Android Varies with device

Content Rating :

Everyone

Game description

Android App Analysis and Review: Hactar Go, Developed by Lauri Paatero. Listed in Board Category. Current Version Is 4.0.1, Updated On 11/04/2025 . According to users reviews on Google Play: Hactar Go. Achieved Over 3 thousand Installs. Hactar Go Currently Has 125 Reviews, Average Rating 4.5 Stars

Go is ancient strategy game with simple rules. Hactar go is perfect for learning go, and to study go anywhere you are.

Hactar offers pro-level AI analysis. It can be used to find better moves or mistakes from any games. Even more accurate AI analysis as subscription.

It is possible to search games for position or players. Search covers games from well-known public WEB archives, more that 90000 professional games are available. You can also include your games in the device to the search.

Hactar contains over 410 go problems (tsumego). You can also add your own collections easily, or download additional 400 problem with few clicks.

Hactar GO can be used to view and record go games in SGF format. Hactar supports variations and setup stones. Hactar can automatically replay games.

Hactar can play with you, it has 1 dan strength in 19x19, 13x13 and 9x9 boards. If this is not enough, you can subscribe to stronger engine playing at pro level.

Community provided translations are welcome! The instructions for translations are at https://gowrite.net/forum/viewtopic.php?t=898
Please report bugs using email or feedback! It is difficult to offer support in Google Play forum.
Go is known also as igo, in China as 围棋 (Weiqi) and in Korea 바둑 (Baduk).
The application price includes at least 2 years of use of the network services.
Full features available in Android 7.1 and later. Older and more limited application may be available for older android versions.

Hactar does not contain ads and it does not collect personal information. For the full license, please see http://gowrite.net/hactar/eula.shtml.

What's New

Handicap dot in board is now sized consistently.
Change of handicap now changes komi to typical value when editing game information and when starting a game.
When saving a sgf game, the file name field was hidden behind keyboard.

Rate and review on Google Play store

4.5

125 total

5 83.3

4 8.3

3 0

2 0

1 8.3

Total number of installs (*estimated)

Estimation of total number of installs on Google Play, Approximated from number of ratings and install bounds achieved on Google Play.

Recent Comments

Karsten Keese

Recurring subscription fees bleed users dry ad infinitum, without an option to purchase the app once and for all. With superior competitor products being available that can be bought instead of rented, this milkingware has been replaced with three better alternatives, at a lower cost than what this programmer charges in a single year. Being able to play against a strong AI/bot is the entire point of using software, so it should be integrated in the local installation and not require Internet.

Nikolaos Dimitropoulos

If you are even remotely interested in Go/Baduk, then this is the app to go to. It has Capture go, very capable ai opponents on very affordable pricing, a really decent tsumego collection AND a great tsumego widget and now has added game analysis by ai! I am beyond impressed!

A Google user

Easily the best Go App I've used Nice crisp clean graphics. Beginners puzzles that are really for beginners with a hint of what the player should be aiming for . Invite for optional feedback by email . Nice animation . All in all an accomplished app.

Youssef Mohamed

An awesome app, of course, but.. It could be a lot better, if their were a training mode, with undo capability And analysis mode (showing the Monte Carlo Simulation results (similar to Leela zero analyze) Thanks

Steven Skorheim

Purchased the game only to find out the full game requires a suscription as well.

J Carlos Hernandez

How do you play in a 19 by 19 board? Do I have to advance using a 9 x 9 first? I dont see where I can select the 19 by 19

A Google user

I've bought a heap of Go apps, and I don't regret most of them. Yours though, I think the most deserving of voluntary support. Book view, the files browser, the import collections.. , all hella cool. Just brilliant. I can't judge the engine, since I still suck at Go. Getting better. I do wish there were more color options. For example, the color for hints and markup is hard for me to see being colorblind. A basic black and white board and stones would be great. Thank you for the update!