Game Rule

Bob’s 27 is a finishing practice game designed to improve accuracy on doubles.

Each player begins with a score of 27 points and works through all doubles from D1 to D20, finishing with Double Bull.

The goal is simple: hit as many doubles as possible and build the highest score by the end of the game.

On each target number, the player throws three darts aimed at the designated double.

Your score increases when you hit, and decreases when you miss—making consistency essential.

How Scoring Works

When you hit the designated double:

Your score increases by: Double value × number of hits

Example：

- Current score: 32

- Target: D3

- Hit 2 times

D3 = 6 points → 6 × 2 hits = +12 points

New score = 44

When you miss all three darts:

You lose points equal to the double’s base value × 2 (the double score).

Example：

- Current score: 40

- Target: D5

- 0 hits

D5 = 10 points → −10 points

New score = 30

Winning Condition

- The player with the highest final score wins.

- In solo play, the goal is improvement rather than competition.

Option Rules

Hard Mode

This mode punishes zero-scoring more severely.

- When enabled, any player whose score drops to 0 is immediately eliminated.

- Remaining players continue until the end.

Reverse Mode

Extends the game by moving forward and then backward through doubles.

- After reaching Double Bull, the sequence reverses back down to D1.

- Order example: D1 → D2 → … → D20 → DBull → DBull → D20 → … → D1

Even Mode

Targets only the even-numbered doubles.

- Sequence becomes: D2 → D4 → D6 → … → D20 → DBull

- If Reverse Mode is also ON, the sequence returns back through the even numbers: D2 → … → D20 → DBull → DBull → D20 → … → D2