Sudoku Variants by Puzzella

Looking for a Sudoku game that grows with you? Sudoku Variants by Puzzella brings Classic Sudoku, Killer Sudoku, Samurai Sudoku, creative variants, daily challenges, smart hints, and guided lessons together in one clean puzzle app. PLAY SUDOKU YOUR WAY Choose the grid, difficulty, and rules that fit your mood: • Classic Sudoku — timeless 9x9 puzzles from Easy to Expert. • Killer Sudoku — combine cage sums with Sudoku logic. • Jigsaw Sudoku — solve irregular regions instead of standard boxes. • Samurai Sudoku — take on five overlapping 9x9 grids in one epic challenge. • Hyper Sudoku — four extra regions add another layer of deduction. • Diagonal Sudoku — both main diagonals must also contain every digit. • Even-Odd Sudoku — use parity markers to narrow your choices. • Mini 4x4 & Speed 6x6 — quick puzzles for beginners and short breaks. • 12x12 & 16x16 Sudoku — larger grids for longer, tougher challenges. From quick mini puzzles to sprawling Samurai grids, there's always a different way to test your logic. LEARN THE LOGIC Puzzella Academy helps you understand Sudoku instead of simply giving you answers. Learn techniques step by step, starting with the fundamentals and progressing to advanced strategies. Practice techniques including Hidden Singles, Naked Pairs, X-Wings, Swordfish, XY-Wings, Killer cage combinations, and more. Whether you're learning Sudoku for the first time or sharpening advanced solving skills, Academy gives you a structured way to improve. GET HELP WITHOUT SPOILERS Stuck doesn't have to mean giving up. • Smart Hints explain the reasoning behind the next logical step. • Auto Notes display valid candidates and remove numbers as they're ruled out. • Conflict Highlighting helps you quickly spot mistakes. • Undo & Redo let you explore your solve with confidence. Get the help you need while still enjoying the satisfaction of solving the puzzle yourself. BUILD A DAILY PUZZLE HABIT Make Sudoku part of your day: • Take on a new Daily Challenge. • Build and maintain your solving streak. • Revisit completed daily puzzles in the archive. • Track solve times, mistakes, hints, XP, and achievements. • Discover puzzles suited to the way you like to play. Whether you have a few minutes or want a longer challenge, there's always another puzzle waiting. TRACK YOUR PROGRESS See how your solving skills develop over time. Follow your puzzle activity, completion history, streaks, solving statistics, XP, and achievements as you work through different Sudoku types and difficulty levels. Challenge yourself to tackle harder puzzles, master new variants, and improve your solving technique. MAKE THE BOARD YOURS Choose a look that works for you with clean light, colorful, and OLED-friendly dark themes. Puzzella is designed for both phones and tablets, with touch-friendly controls, clear puzzle grids, optional haptics, and sound. From compact 4x4 puzzles to large and complex grids, the interface adapts to the puzzle you're solving. PLAY ACROSS DEVICES Create an optional Puzzella account to sync supported progress and achievements across your devices. Prefer to play without an account? You can still enjoy Puzzella without signing in. Many puzzles can be played offline, while syncing and selected large-grid features require an internet connection. ONE APP, MORE WAYS TO SUDOKU Start with familiar Classic Sudoku, learn a new technique in Puzzella Academy, tackle a Killer cage, navigate the irregular regions of Jigsaw Sudoku, or challenge yourself with a massive Samurai puzzle. Whether you're solving your first Sudoku or searching for a tougher logic challenge, Puzzella gives you more ways to play, learn, and improve. Download Sudoku Variants by Puzzella and start your next puzzle.