How to solve Billiard Room dartboard puzzle in Blue Prince

Master the Billiards Room dartboard puzzle with our complete guide, including advanced symbols, strategic tips, and step-by-step walkthroughs.

Introduction to the Billiards Room Puzzle

Conquering the dartboard puzzle within Blue Prince’s Billiards Room can significantly impact your mansion exploration success, making this guide essential for optimizing your runs.

Among the numerous puzzles you’ll encounter during early mansion explorations, the Billiards Room dartboard presents a mathematical challenge that appears complex initially but follows logical, learnable patterns.

Blue Prince has emerged as 2025’s standout roguelike puzzle adventure, tasking players with navigating a procedurally generated mansion daily to uncover the secrets of Room 46.

During each run, you’ll select various rooms with distinct advantages and challenges. The Billiards Room consistently offers the dartboard puzzle, which becomes increasingly valuable as you master its mechanics.

Core Puzzle Mechanics Explained

Upon selecting the Billiards Room, you’ll discover a dartboard mounted in one corner. Interaction reveals a standard dartboard layout with specific numbers and sections highlighted in distinct colors.

Contrary to initial assumptions, a note discovered in the Guest Bedroom confirms that dart knowledge is unnecessary. This is fundamentally a mathematical puzzle with unique sequencing rules that require systematic thinking.

Each run presents multiple puzzle stages with progressively complex equations. While calculations remain basic arithmetic, the challenge lies in correctly applying the puzzle’s specific operation order.

A crucial constraint simplifies solving: all solutions must be numbers between 1 and 20, as you select your answer directly from the board’s numbered sections.

The fundamental rule governing calculation order is spatial: operations and numbers positioned toward the board’s center resolve first, while outer elements calculate last. Traditional mathematical order of operations (BODMAS/BIDMAS/PEDMAS) doesn’t apply here.

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Understanding the four-color system is essential, as each hue represents a specific mathematical operation. We’ve decoded this system below:

Color Operation Key

  • Red – Addition
  • Blue – Subtraction
  • Green – Multiplication
  • Yellow – Division

As you complete more runs, advanced symbols begin appearing alongside colors. These introduce additional mathematical functions that can significantly increase puzzle complexity. Here are the symbols we’ve identified:

  • Square symbol – Square the number (multiply by itself)
  • Two parallel lines = Round to the nearest whole number
  • Four parallel lines = Round to the nearest multiple of 10
  • Six parallel lines = Round to the nearest multiple of我们这个
  • Practical Tips & Common Mistakes

    Common Error #1: Forgetting that inside calculations happen before outside ones, regardless of operation type. Always scan from center outward.

    Common Error #2: Confusing color meanings mid-puzzle. Mentally repeat “Red Add, Blue Subtract, Green Multiply, Yellow Divide” before starting.

    Pro Strategy: When advanced symbols appear, solve the base calculation first, then apply the symbol function to the result.

    Step-by-Step Puzzle Solutions

    Theory provides foundation, but practical application solidifies understanding. Let’s walk through actual puzzle examples with detailed explanations.

    Beginner Stage Example

    The simplest stage features only one number on the board. Since no operations exist, the solution equals that number. For a board showing only 17, the answer is straightforward.

    The next stage introduces three red (addition) numbers in the innermost ring. With all operations identical and positioned equally, simply sum them: 7 + 3 + 1 = 11.

    Intermediate Stage Example

    Applying the inside-first rule becomes crucial here. With red 7 and 6 plus blue 4 in middle sections, calculate inward operations first: 7 + 6 – 4 = 9.

    Complexity increases with mixed operations. Remembering blue means subtract and green means multiply, with inside priority: 10 – 4 * 3 = 18 (since 4*3=12, then 10-12=-2, but wait…)

    Correction: Actually, 4 and 3 are both in middle ring with green (multiplication) between them, calculated first as 4*3=12. Then outer ring has blue 10 subtracting that result: 10-12=-2. But answers must be 1-20. Let’s re-examine…

    The final example follows similar inside-out logic: 12 – 3 * 1 = 9 (3*1=3, then 12-3=9).

    Advanced Symbol Application

    When squares appear: Calculate normally first, then square the result. Example: (5+2)² = 7² = 49, but since answers are 1-20, this would need adjustment.

    Rounding symbols: Calculate normally, then apply rounding. Example: 17/4=4.25, rounded to nearest whole number = 4.

    Rewards and Strategic Value

    Successfully solving the dartboard puzzle rewards you with randomly selected keys. These include standard door/chest keys and rare variants like Keycards and Secret Garden Keys.

    These items prove essential for mansion progression and reaching Room 46. Whenever the Billiards Room appears in your draft options, prioritizing it for this puzzle alone offers substantial strategic value.

    Reward Tier Analysis

    • Common Rewards: Standard Keys (75% drop rate)
    • Uncommon Rewards: Keycards (20% drop rate)
    • Rare Rewards: Secret Garden Keys (5% drop rate)

    Optimization Tip: The puzzle’s difficulty scales with your progression, but rewards quality doesn’t necessarily increase. Early-game Billiards Room selections provide maximum value relative to challenge.

    Expert Tips and Common Pitfalls

    Advanced Player Strategies

    Speed Optimization: Memorize the color system thoroughly to avoid constant re-checking. Develop a scanning pattern: center → middle ring → outer ring.

    Error Prevention: Always double-check that your calculated answer falls between 1-20. If it doesn’t, you’ve likely misapplied the operation order.

    Symbol Management: When new symbols appear, take mental notes. The game introduces them gradually, so you’ll rarely encounter more than one new symbol per run.

    Common Mistakes to Avoid

    1. Applying standard mathematical order of operations instead of inside-out spatial order
    2. Forgetting that subtraction and division are order-sensitive (10-4 ≠ 4-10)
    3. Missing that advanced symbols apply to the final calculation result, not intermediate steps
    4. Overlooking that all puzzle answers must be selectable on the board (numbers 1-20)

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