Imagine you are an explorer in a mysterious mine, but there's a catch: you have no idea where the minerals are hidden. That's where the Mine Director comes in. While one player takes the role of the director and secretly places Tangram pieces on the board, the other players try to uncover the location and color of each mineral using 'elastic waves'.

The game takes place on a 10x8 grid. To find out what's inside, you fire elastic waves from the edges of the map. The magic happens with the bounce: the wave travels in a straight line, but when it hits a mineral, it changes direction at a right angle. Depending on the mineral's color, the wave's color changes too. It's almost like 'Battleship', but with reflection physics and color mixing.

The most cerebral part lies in the colors. The wave starts white, but if it hits a red mineral and then a blue one, it exits as violet. Red and yellow make it orange, while blue and yellow turn it green. If the wave hits all three primary colors, it turns black! There is even oil (black), which dissipates the wave, and white minerals, which reflect the wave without changing its color.

The goal is simple yet challenging: be the first to correctly map the position and color of all minerals on your solution sheet. The best part is the constant tension, as you can guess the answer even when it's not your turn, turning the match into a frantic race of logic and note-taking. If you love that 'aha!' moment when the logic finally clicks, Orapa Mine is exactly what you're looking for.