Only move is a sports chrome extension. it's a free extension , it has 1,000+ active users since released its first version, it earns an average rating of 3.67 from 3 rated user, last update is 1445 days ago.
OnlyMove can save you time in critical online games. I often find myself when premoving, and my opponent makes me check which leads to losing very important seconds. With OnlyMove you simply install the chrome extension and it detects when you can make only move and it makes it for you.
You could download the latest version crx file or older version files and install it.
English.
50% user give 4-star rating, 50% user give 3-star rating. Read reviews of only move
You could find more help information from only move support page.
You could send emails to publisher, or check publisher's website.
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it would be better if it works on chesscup.org so I can get revenge on the developer
It doesn't work on chess.com, nor lichess.org. I love the concept and if you could make this work, I'll change my rating to 5 stars.