anti-sudoku 0.1.1

Solve All the Sudoku, Leave No Joy for Solving by Yourself

Solve all the sudoku, leave no joy for solving by yourself

Why struggle for hours when you can solve any Sudoku in milliseconds? Just paste it in, hit Solve, and get on with your life. Your addiction ends here — and it feels great.

If you have a friend addicted to Sudoku, share this with them! ;)

Setup

Requirements: Python 3.9+

# Install from PyPI
pip install anti-sudoku

# Or install from source
git clone https://github.com/yuhhong/Anti-addiction_Sudoku.git
cd Anti-addiction_Sudoku
pip install .

Web UI

The web UI lets you generate puzzles or type one in manually, then solve it — or get step-by-step hints.

anti-sudoku serve

Opens http://localhost:8000 in your browser automatically. Both the page and the API are served together.

Features

• Generate mode — pick a difficulty (Easy / Hard / Master / Grandmaster) and click Generate to load a fresh puzzle
• Manual Input mode — click any cell and type a digit to enter your own puzzle
• Solve — fills the entire board instantly
• Hint — fills one cell and tells you which technique was used (e.g. "Row 4, Col 7 = 3 — X-Wing")
• Clear — resets the board

CLI

# Solve a puzzle file
anti-sudoku solve anti_sudoku/puzzles/hard_001.txt

# Solve from a string (dots = blank cells)
anti-sudoku solve --input "53..7...."

# Generate a puzzle and print it
anti-sudoku generate --difficulty grandmaster

# Reproducible generation with a seed
anti-sudoku generate --difficulty hard --seed 42

# Start the web UI
anti-sudoku serve
anti-sudoku serve --host 0.0.0.0 --port 9000 --no-browser

Difficulty levels: easy · hard · master · grandmaster

Python Package

from anti_sudoku import solve, hint, generate

# Generate a puzzle (returns 81-char string, dots = blank)
puzzle = generate(difficulty="hard")
puzzle = generate(difficulty="grandmaster", seed=42)  # reproducible

# Solve a puzzle
solution = solve(puzzle)           # pass the string back in
solution = solve([0,5,3,0,...])    # or a list of 81 ints (0 = blank)
# Returns same type as input, or None if unsolvable

# Get one hint at a time
h = hint(puzzle)
# {"row": 3, "col": 6, "value": 7, "technique": "Hidden Single"}

Supported input formats

Format	Example
81-char string	"53..7.486..." — digits 1-9, dots for blank
list of 81 ints	[5,3,0,0,7,0,4,8,6,...] — 0 for blank

Hint techniques

The hint function uses the simplest technique that currently applies:

Technique	Description
Naked Single	Only one candidate remains in a cell
Hidden Single	A digit has only one valid position in a group
Naked Pairs/Triples	N cells share exactly N candidates — eliminate from rest of group
Hidden Pairs/Triples	N digits confined to N cells — eliminate other candidates from those cells
Pointing Pairs	Digit in a block confined to one row/col — eliminate outside the block
X-Wing	Digit in 2 rows shares the same 2 columns — eliminate from those columns
Swordfish	X-Wing extended to 3 rows/columns
Backtracking	Used only when no deterministic technique applies

Puzzle files

Built-in puzzles are in anti_sudoku/puzzles/. Format: space-separated digits, - for blank cells.

- 1 4 - 9 - - 7 -
8 - - 4 - - - 6 3
...

Reference

@inproceedings{simonis2005sudoku,
  title={Sudoku as a constraint problem},
  author={Simonis, Helmut},
  booktitle={CP Workshop on modeling and reformulating Constraint Satisfaction Problems},
  volume={12},
  pages={13--27},
  year={2005},
  organization={Citeseer}
}