There's no widely published board game titled exactly "Ingenuity." You're almost certainly thinking of Ingenious (2004), Reiner Knizia's acclaimed abstract tile-laying game (also published as Mensa Connections).
Objective: Score points in six colors; your final score equals your lowest-scoring color (forcing balanced play).
Setup: Hexagonal board; 120 tiles (each with two colored symbols); rack of 6 tiles per player.
Turn: Place one tile adjacent to matching colors; score each color radiating outward from the placed tile. Refill to 6 tiles.
Special: Reach 18 in a color → "Ingenious!" bonus turn. Block opponents' color paths strategically.
End: Board fills or no legal plays remain. Highest lowest-color score wins.
Please provide:
With details, I can identify the game or help reconstruct rules.