Playing on PuzzleCub

Browser edition · Updated October 3, 2026.

Free browser play

This edition offers unlimited Alphadoku puzzles and Chaturang games against AI without a purchase or account. Hints are free, except in unassisted Alphadoku Pro play. Display ads and interstitial ads between games may support free play when advertising is available.

Local progress

Progress is saved on the browser and device you use. We cannot restore it after browser storage is deleted. Chaturang stores local statistics and settings, but unfinished matches end when the page closes or reloads. Daily and weekly challenge schedules use UTC. Browser saves and mobile app purchases are separate.

Fair use and feedback

Enjoy the games for personal play. Please do not interfere with the service or misrepresent assisted results as unassisted records. Report bugs and accessibility issues to hello@neurantra.com.

Publisher terms

PuzzleCub is published by Neurantra LLC. See Neurantra’s Terms of Use for the publisher’s terms, and our browser privacy information for how this edition handles data.