detour
Tags: loop
📖 Rule Reference: Read full rules on external site
🎮 Play Online: Play at puzz.link • Janko
Input Format
The input matches the puzzle dimensions followed by two sequential grid layers: the clue grid and the region definition grid.
Structure:
1. Header Line
[ROWS] [COLS]
2. Clue Grid (Next [ROWS] lines)
Represents the numbers/clues given in the problem.
- -: Empty cell (no number or signal).
- [Integer]: The number clue associated with the region containing this cell.
- w or b: white (w) circle or black (b) circle (if any, e.g., dotchi loop).
3. Region Grid (The following [ROWS] lines)
Represents the boundary definitions of the puzzle.
- Each cell contains a Region ID (character or integer).
- Cells with the same ID belong to the same region (room/area).
Output Format
Returns a grid with nswe format representing the path segments of the single continuous loop.
Cell Format:
Each non-empty cell contains a string of characters indicating the directions of the path passing through it.
n: North (Up)s: South (Down)w: West (Left)e: East (Right)
Examples:
ns: A vertical line segment (North-South).ne: A 90-degree turn connecting North and East.-: Empty cell (not part of the loop).x: Filled cell (not appear if no rule applies, e.g., masyu).
Examples
Python Quick Start
Use the following code to solve this puzzle directly:
import puzzlekit
# Raw input data
problem_str = """
4 4
- - - 3
- 2 - -
- - - -
- 1 - -
1 1 1 5
2 3 3 5
2 3 3 5
2 4 4 4
"""
# Solve
res = puzzlekit.solve(problem_str, puzzle_type="detour")
# Print solution grid
print(res.solution_data.get('solution_grid', []))
# Visualize (optional)
res.show()