Pool (billiards) is one of the most popular casual sports in China's countless pool halls, and "Chinese 8-ball" is the standard variant — it evolved from American 8-ball rules but drops the strict "call-shot" requirement, making it more forgiving and easier to pick up. It's also the ruleset used in official Chinese pool tournaments today.

MeTool's Chinese Pool lets you play against an AI opponent right in your browser — no account, no app download. The game faithfully recreates the core fun of pool with a simplified Chinese ruleset: claim your group, clear the table, and go for the 8-ball finish, while skipping professional-level details like call-shot so you can focus purely on aiming and positioning.

A game starts with a break shot on a triangular rack of 15 numbered balls, with the 8-ball fixed at the center:

Group assignment (solids/stripes) — After the break, whichever type of ball (solids 1–7 or stripes 9–15) either player first legally pockets becomes their group. This is called an "open table," and before this happens, any ball is fair game.

Clearing the table — From then on, each shot must first contact your own group's balls. Only after clearing all 7 of your own balls can you legally target the 8-ball.

The 8-ball finish — Legally pocketing the 8-ball after clearing your group wins the game outright. Sinking it early — before your group is cleared — is an instant loss. It's the single most dramatic (and punishing) rule in pool.

Fouls — Scratching the cue ball (pocketing it) is a foul, and your opponent gets a free ball: they can drag the cue ball anywhere on the table before shooting. Other fouls (missing all balls, or hitting the wrong ball type first) simply pass the turn with no extra penalty, keeping the game beginner-friendly.

Aiming is direct: move the mouse and the cue ball points toward the cursor, with a live dashed aim line and ghost-ball preview showing the first contact point. Once you've picked a direction, press and drag away from the cue ball to charge power — the farther you drag, the higher the power bar on the right climbs — then release to strike. The same gesture works with a mouse or a touchscreen, so you can start a game anywhere.

One of the most satisfying things about real pool is watching the cue ball keep moving on its own after contact — that's follow and draw. MeTool's Chinese Pool adds a small cue-ball icon at the top center during aiming: drag the red dot to pick your strike point. Above center gives topspin/follow (the cue ball keeps rolling forward through contact); below center gives backspin/draw (it rolls back); left or right gives side spin (english), which mostly changes the rebound angle off the rails.

This isn't a canned animation — it's a simplified but physically grounded spin model. At the moment of the shot, the strike point determines an initial angular velocity for the cue ball, and every subsequent frame applies cloth-friction equations that gradually convert that spin into real linear motion. Follow and draw emerge naturally from this friction model rather than being hard-coded into the collision logic — which is also the actual physical reason a draw shot pulls the cue ball backward in real life.

Many browser pool games brute-force hundreds of angle/power combinations for their AI, which is slow and not particularly smart. MeTool's AI takes a more human-like approach:

① Geometric analysis — For every one of its remaining balls, the AI computes the cut angle needed to send the cue ball through the target ball into each pocket, and checks whether that path is blocked by other balls.

② Scoring — Straighter cut angles and clearer paths score higher; blocked paths are heavily penalized or discarded outright.

③ Difficulty tiers — Easy mode adds significant aiming error and occasionally ignores the best option entirely, picking a random legal shot instead. Hard mode has near-zero error and also factors in where the cue ball will end up after the shot, favoring positions that set up the next ball.

This produces a genuine skill gradient across difficulties: Easy plays like a nervous beginner who sometimes misses; Hard executes a precise clearing plan that will make you think carefully about every shot.

① Spatial geometry intuition — Aiming angles, rebound paths, and position play are all spatial geometry problems at heart; regular practice sharpens your spatial reasoning.

② Focus and hand-eye coordination — Building power, aiming precisely, and striking cleanly demands fine motor control — a great workout for focus and coordination.

③ Strategic, whole-game thinking — Strong players don't just ask "will this ball go in?" — they plan where the cue ball lands afterward and how that sets up the next shot. That same big-picture thinking pays off in everyday decision-making too.

MeTool's Chinese Pool runs entirely in your browser — no account system, no online matchmaking required. Your best result (fewest shots to win) is saved locally via your browser's localStorage, so you can keep chasing a new personal best. Clearing browser data or switching devices resets the local record, but there's zero privacy concern — your data is never uploaded to any server.