Hit & Blow Solver

This is a command-line tool that solves the Hit & Blow game.
It is a heuristic solver and does not provide a complete analytical solution.
The solving method is based on the approach by B. Landy described on page 3 of the following paper (in Japanese): https://www.tanaka.ecc.u-tokyo.ac.jp/ktanaka/papers/gpw96.pdf

Demo

Installation

To install the CLI tool, run the following command:

go install github.com/ponyo877/hit-and-blow-solver@v1.0.1

Usage

The tool assumes a 3-digit Hit & Blow game using digits from 0-9.
If you want to change the number of digits or the range of digits, you can edit the beginning of the main method in main.go directly.

// main.go: main
disit := 3
numbers := []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

The tool will prompt you through the following steps:

1. [Automatic] A suitable guess sequence will be displayed.
2. [You] Submit the guess sequence from step 1 to your opponent.
3. [Automatic] A list of possible feedback options for the guess sequence will be displayed.
4. [You] Select the actual feedback from your opponent.

❯ hit-and-blow-solver
estimate:  [6 9 8]
Use the arrow keys to navigate: ↓ ↑ → ←  and / toggles search
Feedbacks?
    1H1B
    0H2B
    2H0B
  👉 1H2B
    3H0B
    0H3B
    0H1B
    1H0B
    0H0B

❯ hit-and-blow-solver
estimate:  [5 3 2]
👉 0H1B
You choose Feedback: 0H1B
estimate:  [0 1 3]
👉 0H2B
You choose Feedback: 0H2B
estimate:  [2 5 0]
👉 0H1B
You choose Feedback: 0H1B
estimate:  [4 6 7]
👉 1H0B
You choose Feedback: 1H0B
You win!:  [3 0 7]