Smart behaviors:
- Auto-roll dice at start of each turn
- If only one move exists for a piece, execute immediately on tap
- If only one complete sequence possible, auto-execute entire turn
- Auto-end turn when no moves remain
- Movable pieces highlighted with golden glow (tap targets)
- Tap piece → valid destinations highlighted → tap destination → done
- Undo button for unlimited undo before turn ends

UX flow:
1. Dice auto-roll
2. Movable sources highlighted
3. Tap source → if single destination, auto-move
4. If multiple destinations → show targets → tap one
5. Repeat until dice exhausted
6. Turn auto-ends

Minimal taps, zero rules knowledge needed, fast animations.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>