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---
title: "Beyond Sudoku: Exploring Constraint Satisfaction Puzzles"
description: "A journey through Sudoku variants and their algorithmic solutions."
pubDate: "Feb 10 2024"
image: "https://images.unsplash.com/photo-1580541631950-7282082b53ce?w=400&auto=format&fit=crop&q=60"
authorImage: "/avatar/avatar1.png"
authorName: "Neeldhara"
---
# Beyond Sudoku: Exploring Constraint Satisfaction Puzzles
Sudoku is just the beginning. Let's explore variants that push the boundaries of logic puzzles.
## Killer Sudoku
Combine Sudoku with Kakuro - cages show sums, but no digit repeats within a cage.
## Sandwich Sudoku
The numbers outside show the sum of digits between 1 and 9 in that row/column. Simple rule, complex implications!
## The Algorithm Connection
These puzzles are constraint satisfaction problems. Techniques like arc consistency and backtracking with constraint propagation solve them efficiently.
## Create Your Own
What happens if we add chess knight move constraints? The design space is infinite!