Sphinx

Players each secretly construct a maze on a hidden grid, and place both an entrance and the location of the treasure. Each player races to find his/her way to the opponent's treasure before their own treasure is stolen.

Each turn a player calls out a location on the grid. If that location is a corridor square, the turn continues, if it's a wall, the turn ends, and if it's the treasure, the player wins. Each location guessed must be connected back to the entrance by confirmed corridor squares.

Components:

2 screens
4 grids
120 chips (yellow for corridors, brown for walls)

This game is similar to Pathfinder/Sniff