Orapa Mine is a logic-based deduction board game where players try to identify the location and colors of gemstones hidden on their opponent’s mine board. Inspired by the real Orapa diamond mine, the game blends puzzle-solving with light strategic choices, making it suitable for both casual and experienced gamers.

How the Game Works

Players send “ultrasonic beams” (questions) across the mine board.
Depending on which gemstones they hit, the beam’s color changes.
By tracking these results and comparing patterns, you gradually narrow down the possible positions of your opponent’s hidden gems.

The challenge is interpreting the signals correctly—some reflections can be misleading, and a wrong final deduction means an instant loss.

Player Count & Playtime

• 2 players for a direct deduction duel

• 3+ players if one player takes the role of quiz master

• Approx. 30 minutes

What Makes It Unique

• A deduction system similar to classic logic puzzles, but with the added twist of color-changing beams

• Multiple gemstone types that interact differently with the “ultrasonic” paths

• Optional advanced rules that introduce transparent or black gemstones for increased difficulty

• Works well as a short, thinky filler game or a light strategy session

Components

• 2 Mine Boards

• 2 Privacy Screens

• 2 Sets of 7 Gemstones (each a unique shape)

• Solution Sheet

• Rulebook

Goal of the Game

Be the first to correctly identify all gemstones hidden on your opponent’s board, including their exact positions and colors.
If your deduction is incorrect, the game ends immediately in your opponent’s favor.

Condition

Complete set. All components included as listed.

Please see photos for the exact condition of the item.