Enhance your chess performance with a cutting-edge real-time move analysis and strategy assistance system
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A.C.A.S is an advanced chess assistance system which enhances your chess performance with cutting-edge real-time move analysis. Just install the userscript, open the A.C.A.S GUI and you're good to go! No downloading needed. Note that we do not advocate using A.C.A.S against human players!
If you found a userscript that has more features and doesn't have anti-features, that's great, you should use it instead of A.C.A.S! This message is against developers stealing code and making cheap copies of existing scripts to fill them with ads and to profit from users. It's absolutely disgusting behaviour and takes away from all of us. Please always prefer userscripts without any anti-features, otherwise it will just encourage more and more developers to use anti-features.
| A.C.A.S (Tab #1) | Chess Website (Tab #2) |
|---|---|
 |
 |
| The engine runs on a completely different tab than the chess game page, completely isolated from it. The site cannot block the usage of A.C.A.S. | A.C.A.S sends move data via CommLink and the userscript displays the data on the board using UniversalBoardDrawer. (If "Display Moves On External Site" setting is activated!) |
| Color | Meaning |
|---|---|
| 🟩 | Best Move |
| 🟦 | Secondary Move |
| 🟥 | Enemy Move |
Note Enemy move is shown if "Display Opponent Move Guess" setting is activated and the square an arrow starts from is hovered. The enemy move arrow is just a guess made by the engine and means that the engine thinks after you make the move the arrow suggests, the enemy will make the move the enemy arrow suggests.
Chess engines simply play differently than humans. It's fairly easy to detect by pure statistics. For example, chess.com bans about 16 000 players for fair play abuse each month.
Your ban most likely wasn't because of the site detecting A.C.A.S, it was because of your suspicious behaviour patterns. A.C.A.S cannot fix this, it's your responsiblity to play as a human.
Don't want to get banned again? Don't use A.C.A.S against other humans.
Before making an issue, please read these,
Make sure the A.C.A.S GUI is active. Do not close the tab. Browsers freeze code execution on inactive pages, you need to visit the A.C.A.S GUI tab from time to time or keep it open on a separate window. This prevents A.C.A.S from freezing and not giving any move suggestions, for example.
Do you not see any moves displayed on the chess site? Are you sure you have enabled "Display Moves On External Site" box on the A.C.A.S GUI settings? After enabling that setting, please refresh the chess site to see changes.
Are you trying to play variants on Chess.com? If so, it's not currently supported very well since I had to rush the project, sorry! Other sites with variants might also be buggy, you can make an issue about that if you want.
Otherwise, it could be a bug, please make an issue here.
Note When making an issue, please be descriptive! Mention,
- The chess site and the variant you were playing.
- The browser and the userscript manager you were using.
- What did you do for the bug to happen, does it happen often? How could I reproduce it?
- You can also include a screenshot of the browser console (e.g.
CTRL + SHIFT + Ior right click, inspect, and go to the console tab), look for grey underlined text at the beginning of a red background area, on the right side of the screen, which has the word 'A.C.A.S'. That's an error from the userscript.
