How to Solve the Dartboard Puzzle in Blue Prince (Billiards Room, Basic Version)
The Billiards Room in Blue Prince hides one of the game’s trickier puzzles: the dartboard. If you’ve found yourself staring at the board, wondering what parts to press, you’re not alone. This guide will walk you through the solution step by step, explaining how the puzzle works. Now, you’re in a hurry, and I want to play darts, so let’s get right to it!

Quick Solution
The dartboard sits at the back of the Billiards Room and can reward you with a key—sometimes even two. It’s actually a math puzzle, and the equation starts with the marking closest to the bullseye.
Here’s how the colours work:
Blue – Addition
Yellow – Subtraction
Pink – Multiplication
Purple – Division
To solve it, follow the equation and press the button that matches the correct answer four times. Once you do, the dartboard will open and reveal your reward.
Step-by-Step Walkthrough
Let’s take a look at this in action.
First puzzle
The dartboard has the number 13 highlighted, so we click it to begin. All the numbers are blue, which means addition. Add them together: 9 + 1 + 6 = 16. Press 16 to solve this step.
Second puzzle
11 is now highlighted, closest to the bullseye, so that’s our starting number. Two numbers, 3 and 2, are yellow, which means subtraction. Solve it: 11 – 3 – 2 = 6. Press 6.
Third puzzle
Things get trickier. 20 is highlighted first, then 18 is next closest to the bullseye, and 6 is pink, meaning multiplication. Solve in order: 20 – 18 = 2, then 2 × 6 = 12. Press 12.
Fourth puzzle
The starter number is 7, subtract 1, then multiply by 3. Solve: 7 – 1 = 6, then 6 × 3 = 18. Press 18.
Solving all four puzzles opens the dartboard and reveals your reward. The numbers and operations are randomised each time, but as long as you follow these principles, you’ll always get through.
Common Mistakes & Tips
The biggest mistake players make is clicking the wrong number. If this happens, the puzzle resets back to the start. Don’t panic, just carefully resolve the equations from the beginning.
A few extra tips:
Double-check the operation colours before pressing a number.
Remember that the starting number is always the one closest to the bullseye.
Take your time; these puzzles are meant to be solved step by step.
Following these simple tips will keep you from getting stuck and make solving the dartboard puzzle much smoother.
This puzzle evolves into more complex equations the further you progress, so keep an eye out for our advanced guide soon.
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