Puzzlithm vs VariantDoku

算数が好きになるためのパズルアプリ「Puzzlithm（パズリズム）」 数字をヒントにマスを塗ったり光を当てたりして解く、頭をフル回転させる論理パズルアプリです！ 2種類のパズル「美術館・改」「ぬりかべ・改」を収録しています！ 美術館・改：照明をタップで設置し、全てのマスを照らすように配置します。すべてのマスを照らし、数字マスの周囲に正しい数の照明を置くことができればクリアです。 ぬりかべ・改：数字マスを囲むように黒マスを塗って、条件通りにブロックを分割していきます。すべての数字マスが数字通りに独立し、黒マスがひと続きになればクリアです。 ひらめきと論理で一気に道が開ける爽快感がクセになり、算数が好きになりたい小学生や頭のストレッチをしたい方におすすめのパズルです！

No ads. No guessing. Just pure-logic variant sudoku. VariantDoku is built for solvers who want more than one daily grid — a growing library of 3,000+ variant and zero-givens puzzles, every one verified to have a single solution reachable by logic alone. No ads, ever — free or paid. WHY SOLVERS STAY - 3,000+ variant & zero-givens puzzles: killer cages, thermos, kropki dots, XV, arrows, renban, German whispers, palindromes, diagonals, anti-knight, and more - Every puzzle is logic-checked: one unique solution, no guessing required - A new daily puzzle, free for everyone — compare solve times on the daily leaderboard - Home-screen widget keeps today's puzzle one tap away - Audio narration reads the rules and tutorial steps aloud — listen while you study the grid LEARN ANY VARIANT - Step-by-step interactive tutorials for every variant, from your first 4x4 grid to mixed-constraint puzzles - A guided first-launch experience matches puzzles to your level — you're never thrown into the deep end - Already sharp? Skip straight to the expert grids TOOLS THAT RESPECT YOUR SOLVE - Candidate notes, corner marks, colors, and symbols for advanced solving - Error checking and gentle hints — only when you ask - Import puzzle links straight into your Library - Search and filters by difficulty, grid size, and constraint type - Streaks and solve history to track your progress - Dark mode and a calm interface designed for long sessions - Fully optimized for iPad in portrait and landscape, and runs on Mac BUILT TO BE ACCESSIBLE - VoiceOver plays the whole board: move cell by cell and hear the digit, your pencil marks, the clues on that cell and how it connects to its neighbours - Colour-blind support: German Whispers, Renban, Palindrome, Region Sum and Parity lines each have their own dash pattern, so no rule depends on colour alone - Reduce Motion is respected — staged hint reveals and animations settle immediately HINTS THAT COACH, NOT ANSWER - Every hint names the next logical step — Hidden Single, X-Wing, W-Wing, Simple Coloring, Forcing Chain — and highlights the cells it depends on - It reads the pencil marks you already made and builds on them - It never reveals a digit that isn't logically deduced; when the logic only rules candidates out, it shows you that instead of handing you a number THE VARIANTS LIST Classic Sudoku, Killer Sudoku, Kropki, XV, Thermo, German Whispers, Renban, Palindrome, Between Lines, Lockout Lines, Region Sum Lines, Arrow Sudoku, Diagonal (Sudoku X), Anti-Knight, Anti-King — plus multi-constraint puzzles that combine several on one board, and zero-givens puzzles solved entirely from the variant rules. Variant+ removes the hint limit and explains the available logical deductions step by step, and adds unlimited puzzles, unlimited error checking and offline Library play. The app stays 100% ad-free — free or paid. Whether you're learning your first killer cage or chasing your hundredth zero-givens solve, VariantDoku is a calm place to practice and improve. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/