3-Cushion Billiards Simulator and 3-Ball Trainer

Features

• Two rule modes — Switch between international three-cushion scoring and free carom without rebuilding the position.
• Positions and table profiles — 25 playable presets, random layouts, manual placement, undo/redo, standard dimensions and custom table size.
• Local photo assistant — Classical vision suggests corners and balls on the device; review, edit or replace every point manually before transfer.
• Physical stroke controls — Angle, power, side/top contact, cue elevation and a visible miscue boundary share one desktop/mobile contract.
• Physics V3 laboratory — Every new shot uses Physics V3. The frozen V2 reference remains available only for transparent comparison and legacy replay; measurement status is disclosed.
• Unified solution portfolio — One rule-aware search combines available stroke families, validates replay and ranks distinct routes from practical to risky.
• Camera and training aids — Orbit, zoom, top/side/perspective views, route-assist levels, 5.5 system overlay and optional spin guidance.
• Replay and history — Playback speed, scrubbing, event trace, undo/redo, shot history and JSON export support deliberate review.
• Drills and results — Repeat a saved position, track manual attempts, finish a session and review streaks and coach-style prompts locally.
• Personal and shareable — Independent table finish, cloth and ball designs; 10 languages, light/dark themes, sound, local saves and share links.

Game Modes

• 3-Cushion Carom — international three-cushion rules
• 3-Ball (Free) Carom — white, yellow, red ball

Learn and Practice

Practice three-cushion, classic positions (ticky, umbrella, around-the-table), Diamond System and Plus 2 system fundamentals here.

How the Simulator Works

3ball runs a calibrated physics-based 2D training model in your browser. Ball, cushion, spin and cloth responses are approximated by simulation; results are a comparative practice reference, not a guarantee of behavior on real equipment.

No machine learning. One Physics V3 search follows the active three-cushion or free-carom rule, evaluates direct, cushion and elevated stroke families, removes duplicates and orders the portfolio from easy and stable to demanding and risky. Real-table measurement status remains clearly disclosed.

Practicing from a real table? Local classical computer vision suggests corners and ball positions without the photo leaving your device. You must review and can edit every point before transfer; if suggestions are unreliable, place every point manually. A homography maps only the points you approve. No machine learning is used and accuracy is not guaranteed.

3ball supports two rule sets: full international 3-cushion, where the cue ball must contact three cushions before completing contact with both object balls, and 3-ball Free carom, which has no cushion requirement and is a good way to build fundamentals first.

Frequently Asked Questions

Is 3ball free to use?

Yes — 3ball.app is completely free with no login, no payment and no paywall. Built and hosted by Setviva as a community resource.

Do I need to install anything to use 3ball?

No. 3ball runs in any modern browser (Chrome, Safari, Firefox, Edge) on desktop or mobile. Optional one-tap install as a PWA via your browser’s Add to Home Screen prompt.

What languages does 3ball support?

All 10: English, Turkish, Spanish, German, Korean, Vietnamese, Dutch, French, Japanese and Italian — fully localized.

Does 3ball collect personal data?

No account or identity details are required. Essential preferences and a pseudonymous issue-report key stay in your browser; report data is processed only if you submit it. GA4 and Yandex Metrica run only after analytics consent, while session recording and Clarity are disabled. Full details are on the Legal page.

What is the difference between 3-cushion and 3-ball Free carom?

3-cushion requires the cue ball to touch at least three cushions before completing contact with the two object balls. 3-ball Free (libre) carom has no cushion requirement.