# ArcSwing

> Swing a pendulum through target gates by holding to extend and releasing to retract the rope. A one-button physics puzzle with daily seeded layouts.

- **URL:** https://www.teafun.cyou/games/arcswing/
- **Type:** Browser game — instant play, no download, no account

## About

Swing a pendulum through target gates by holding to extend and releasing to retract the rope. A one-button physics puzzle with daily seeded layouts.

## How to Play ArcSwing

Hold anywhere on screen (or press Space) to extend the rope — the ball swings wider and slower. Release to retract — the ball snaps tighter and faster. Time your holds to thread the ball through every gate.

## Why Pendulum Physics Games Train Spatial Intuition

A pendulum creates a continuous, sinusoidal motion that your brain must model in real time to plan an interception. Unlike discrete puzzle games where state is static between moves, ArcSwing demands that you update your mental model each frame as the ball swings through its arc. Adjusting rope length changes not just the ball's immediate position but the entire shape of future arcs, making decisions cascading rather than isolated. This form of predictive, physics-based reasoning is underrepresented in browser games and engages spatial-temporal processing rarely exercised by reaction timers or memory grids. Players who develop intuition for pendulum physics often find the skill transfers to an appreciation for physical systems in everyday life.

## FAQ

### How does ArcSwing work?

A ball hangs from a pivot and swings like a pendulum. Hold to extend the rope (wider, slower swing) and release to retract it (tighter, faster swing). Swing through all the target gates to win.

### What do the difficulty levels change?

Easy has 8 gates with reduced gravity. Medium has 10 gates at normal gravity. Hard has 12 gates with increased gravity — tighter timing and more targets to hit.

### Is the daily puzzle the same for everyone?

Yes. The daily gate layout, rope length, and gravity are generated from the UTC date, so every player worldwide gets the same puzzle each day.

### How is the grade calculated?

Your grade depends on how many swings you used compared to the optimal number. S grade means you matched or beat the optimal count. A is within 1.5x, B within 2x, and C is above 2x.