ArcShift

ArcShift is a minimalist logic puzzle that challenges your spatial reasoning and planning skills.

Each level presents a set of connected arcs on a circular ring. The goal is simple: rearrange the arc endpoints so that no arcs cross each other. With each move carefully counted, you must find the optimal solution within a limited number of steps.

Features:

- Progressive difficulty with over 200 levels. Early levels introduce basic arc manipulation, while later stages add fixed endpoints and complex configurations that require careful forethought.
- Dynamic visual feedback. Each move updates the intersection count in real time. Reduce crossings and see a calming green glow; increase them and receive a clear red warning.
- Drag-and-drop controls. Simply touch any endpoint and drag it to a new position. The arc follows your finger, giving you precise control over each adjustment.
- Best step tracking. Complete each level in as few moves as possible to set personal records and challenge yourself to improve.
- Achievement badges. Earn recognition as you clear milestone counts of completed levels.
- Level progression system. Levels scale gradually from simple 2-arc puzzles to complex multi-arc configurations with fixed anchor points.
- Offline play. All content is available without an internet connection. No account or login required.

ArcShift is designed for quick sessions of 20-30 seconds, making it ideal for commutes, breaks, or any moment when you want a focused mental challenge. The clean dark theme and smooth arc animations create a calm, distraction-free environment for logical thinking.