CrazyStone DeepLearning

Contains adsIn-app purchases
4.4
9.03K reviews
500K+
Downloads
Content rating
Everyone
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About this game

The strongest, the best Go app in the world based on Crazy Stone employing Deep Learning technology !

New Features!!
-Online Games against Go players all over the world
-IAGA Rating Certification Tests
Challenge the Dan/Kyu tests provided by the International AI Go Association.
-Premium Membership
Completely ad free, higher levels and additional features for Premium Members.

Crazy Stone has made a huge step forward by combining Deep Neural Networks with Monte Carlo Tree Search. The highest level of Crazy Stone Deep Learning has achieved 5d in kgs rating and in this lite version, we have provided you the highest level of 2d for FREE!

* 17 levels of play from 15k to 2d
There are 17 levels of play (15k-2d) for all the board sizes. Crazy Stone has improved not only in strength, but also in his style of play and the lower levels are perfect for players who want to learn the game of Go.
Now, the strongest level for Premium Members is 5d.

* IAGA Rating Certification Test
Challenge the Dan/Kyu tests provided by the International AI Go Association. You will be awarded certificate images if you pass the tests.
(You will need to register an AI Game Account to challenge the tests. Registration is free) 

* Export and import sgf game files
You will be able to import and export game records in sgf format from other apps. Also you can copy game record data to the clipboard.

* Rating Mode
Test your skills with serious games against the AI, keeps track of the results of your games and the history of your rating!
The Rating Mode will be partly unlocked if you reach 7k IAGA Rating. If you become a premium member, all of the Rating Mode features will be unlocked immediately.

* Other features
・Friendly 3 input methods
You can choose from 3 options of input methods (Zoom, Cursor & Touch).
・17 levels of play for each board size (9x9, 13x13, 19x19)
・Human vs Computer, Human vs Human (sharing a single device)
・Computer vs Computer Games
・Handicap games, variable options of Komi
・Hint (suggest)
・Instant Undo (available even when the computer is thinking)
・Automatic territory calculation
・Japanese/Chinese Rules
・Suspend/Re-start games
・Save/Load game record in sgf files
・Automatic and manual replay of a game record
・Highlight the last move
・COM resign feature
・Byoyomi games
(You will not be able to select computer level in timed games)
・Atari warning
・Highlight the last move
・Play speed can be adjusted

*Notes for Premium Member (Monthly Subscription)
The benefits of Premium Members are:
-Completely ad free
-Maximum AI playing strength will rise to 5dan
-Play Rating Mode for all 3 board sizes
-Challenge the IAGA Certification Tests higher than 7kyu

The Premium Membership is a monthly subscription service.
The Subscription will be renewed automatically unless cancelled more than 24 hours before the end of its current period.
To turn-off the auto renewal of subscription, please open the Google Play Store app and change your Google Play Account settings.
You will not be able to cancel the current subscription during its active period.


* This app is certified by International AI Go Association
Updated on
Jun 28, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.3
7.49K reviews
A Google user
August 5, 2019
Playing 9x9 the AI is more like a puzzle. Once I figure out the right moves I can play the same moves and the AI will respond in the same way. However, the harder the AI the more variations, but still possible to predict its moves. The paid for version fixes this. I would like to see when editing the game for it to just add a variation to the board or at least rewrite the sgf. Right now if I edit the board, when replaying the game it only goes back to place I started editing. Thanks.
9 people found this review helpful
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Matthew Spach
December 20, 2021
It's an absolute garbage game. The game itself is fine. But the heavy load of ineascapable advertisements after every single game make it very hard to play. Even if you exit the app and come back, there is still 1-2 ads to watch before you can resume gameplay. If it were $2.50 to simply buy the game and skip the ads, id do it in a heartbeat. But $2.50/ month is an absolute rip off. The AI is not the best for a GO sim, but for a phone app it's pretty fun. Wish they could solve the ad problem.
42 people found this review helpful
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M.J.
April 30, 2023
This is an excellent learning tool and a fun pass time; would give it a 5 🌟 rating were it not for the requiring a monthly membership for even an offline (no ads) version; I understand the fee to access online (cover their overhead) & my spyware app says there sharing our very private data (last name, location, ph#, ..., even screen orientation🤷 with Google and other similar data with Amazon & 2 other companies I didn't recognize) something like 108 times in 6hr after I first checked it.
4 people found this review helpful
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What's new

Performance improvements