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The physics simulation found no path that scores from this layout. Move a ball a little or switch the cue ball (white/yellow) and try again. 3-cushion has far fewer paths than 4-ball because of the three-cushion rule.

Take the photo from above at an angle so the cloth fills most of the frame and the whole table is in view. If the detected corners are off, drag them into place and use rotate so the thick lines sit on the long rails. Dim light or touching balls make detection harder. After that, drag any ball on the home screen to fix it.

Tap the calculator button next to the handicap box. Add up the points and innings from your last few games and it shows your average and handicap; tap Use to apply it. One game is mostly luck — 30 innings or more is better.

For 3-cushion it uses the handicap-by-average bands of Korean amateur tournaments (below 20 pts is an estimate). For 4-ball there is no official table, so it uses the rule of thumb "the points you can run out within 10 innings". If your club gave you a handicap, use that.

Tap Share › Send this layout at the top. It sends a picture of the table and a link by chat or message. If you picked a suggested path, it's drawn in the picture too. Your friend can see the layout from the link even without the app.

Some in-app browsers don't hand links over to apps. Tap Copy code on the link page, then in the app tap Share › Open a received layout and paste it. You can paste the whole message — anything with a code starting with BG1- works.

Tap the high-contrast button next to the cue ball picker for clearer text and balls. It turns on by itself if you raised contrast in your device settings. The app also follows your device's text size.

The app follows your phone's language (Korean, English or Vietnamese; anything else shows English). To change only the app: on Android go to Settings › Apps › Billiards Guide › Language; on iPhone go to Settings › Billiards Guide › Language (it appears when you have more than one language in Settings › General › Language & Region).

Every day everyone gets the same layout. Tap Daily layout at the bottom of the home screen to set it up and find paths right away. This analysis doesn't use your free ones; if you move a ball it becomes a normal analysis. Your daily streak is counted too — talk it over with friends.

Tap Drills at the bottom of the home screen: 20 problems each for beginner, intermediate and advanced. Each has a set path — play it at the table and tap Made or Missed. Make it once for one star, three in a row for two, five in a row for three. Solving 10 in a stage unlocks the next. Drills don't use your free analyses.

You get 3 free analyses a day, and watching one ad adds 3 more. The count resets to 3 at midnight.

It can happen briefly when the network is slow or no ads are available. Please try again in a moment, and email us if it keeps happening.

The simulation is an approximation that assumes average table conditions. Cloth, cushion bounce and ball wear change the real path. Use the suggestion as a guide to the route, cue tip and hit, and adjust the power at the table.

Yes. Tracking only affects ad personalization; every feature works the same. You can change it any time in iPhone Settings › Privacy & Security › Tracking.

Layouts and photos are processed on your device and never sent to a server. There is no sign-up. When you share a layout, it travels as a short code after the # in the link — that part never reaches our server and isn't stored. See the privacy policy for details.