Hactar Go v4.0.5

Lauri Paatero

• In-app purchases

About this app

Developer Description

Play and study go now!

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

Fixed multiple problems relating to opening SGF files from other applications.
Fixed inability to email SGF files without opening them first.
Improve editing layouts in near-square screens. If layout is still not good, please send screenshot!

In-app purchases

$0.99 - $30.99 per item

Version Information

Version: 4.0.5
Downloads: 1K+
Updated on: Dec 23, 2025
Released: Mar 10, 2012
Requires: Android 6.0

Statistics

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Hactar Go - Google Play Rankings

Rank	Country	Category	List	Change
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No ranking data available yet. Rankings are updated daily.

#71 in Top Paid Board in United States

#70

Dragon Castle: The Board Game

#71

Hactar Go

#72

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#90 in Top Paid Board in Argentina

#89

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#90

Hactar Go

#91

Isle of Skye: The Board Game

#91 in Top Paid Board in Vietnam

#90

Labyrinth: The War on Terror

#91

Hactar Go

#92

Isle of Skye: The Board Game

#92 in Top Paid Board in Netherlands

#91

Sudoku Pro

#92

Hactar Go

#93

Wings of Glory

Hactar Go users say on Google Play

★★★★★

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

★★

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.

★