Chain adjacent cells so their sum equals your target. 3–4 cell chains are common; 2, 5 and 6 are rare. Chains can't cross over.
Target Sum
15
Time Limit
✅ Exact sum: +10 + 5/cell
❌ Overshoot: −5 pts
🔗 Tap last cell to undo • Clear to restart a chain
🏁 End: no chains left or timer out • unmatched sum deducted, +5/chain bonus