Hex-Chain is an arithmetic-trace puzzle. Each tile is a number; each edge is an operator. Walk a path that lands on the target.
Goal
Build a chain that evaluates exactly to the target number shown above the board.
Controls
- Tap a tileStart your chain on that tile
- Drag onto a neighbourAdd it to the chain — the edge operator applies between the two tiles
- Drag backUndo the last step
- Lift your fingerSubmit the chain
Scoring
- Hit the target exactly → ⭐⭐⭐ + chain-length bonus
- Within 1 of the target → ⭐⭐ partial credit
- Within 5 → ⭐ small consolation
- Longer chains multiply your score (up to 5×).
Tips
- Expression evaluates left-to-right with NO operator precedence — `2 + 3 × 4` is 20, not 14.
- Subtraction edges can take you below zero — sometimes that's the only way to land on the target.