Smart Sudoku 3.0

For enthusiasts of Sudoku, particularly those familiar with intricate solving techniques such as "X-Wing," "2-String Kite," and "Locked Candidates," Smart Sudoku presents a sophisticated tool for puzzle-solving. However, even those who are not acquainted with these terms will find it equally beneficial.

Smart Sudoku distinguishes itself from traditional Sudoku applications by providing not just solutions to individual cells, but also offering professional insights and strategies for approaching complex puzzles. Users are guided in recognizing patterns that facilitate the elimination of candidates, thereby enhancing their solving skills.

The application features an innovative scoring system that evaluates user performance based on solving efficiency rather than time taken. This encourages a more analytical approach to puzzles.

With over 500 built-in puzzles ranging from easy to exceedingly difficult, Smart Sudoku also simplifies the input process for users wishing to copy puzzles from various sources, such as newspapers.

A testimonial from a UK user highlights the streamlined experience: "Excellent. Very simple to enter puzzles from the newspaper. Candidate numbers are displayed, allowing solutions to really tough puzzles to be solved without the laborious job of setting up candidates."

• Powerful Hint System: Leverage popular solving strategies for effective hints.
• Fast Manual Entry: Input puzzles within 40 seconds on average.
• Simultaneous Square Handling: Manage multiple squares at once.
• Candidates Visibility: Toggle candidate displays while solving.
• Unique Scoring Method: Score based on solving efficiency, not just time.
• Coping and Importing Puzzles: Support for standard formats and internet sources.
• Email Sharing: Share intermediate or fully solved puzzles easily.
• Undo/Redo Functionality: Unlimited adjustments during solving sessions.
• User Manual: In-app reference guide available.
• Landscape Mode: Optimized for iPad, Mac, and Vision Pro devices.

The hint functionality is particularly noteworthy, enabling users to learn how to systematically eliminate candidates by identifying key patterns. Should users find themselves in a challenging situation, Smart Sudoku can highlight key squares and relevant numbers, streamlining the candidate elimination process.

• Naked and Hidden Singles, Pairs, Triples, Quads, Quintuples
• Locked Candidates Types 1 and 2
• X-Wing
• XY-Wing
• XYZ-Wing
• W-Wing
• Skyscraper
• 2-String Kite
• Swordfish
• Jellyfish
• Empty Rectangle
• Unique Rectangle Types 1 and 2

The application also includes a feature for input checking; after pasting a printed puzzle, Smart Sudoku verifies whether it has a unique solution—addressing common issues such as typographical errors or missing digits.

The approach to solving is both efficient and user-friendly. The application advocates for the removal of candidates rather than their addition and supports simultaneous eliminations across multiple squares. In instances where users may feel stuck without hints, Smart Sudoku offers assistance by resolving specific squares or entire puzzles as needed.

The novel scoring mechanism further sets Smart Sudoku apart. Unlike many other Sudoku applications that prioritize speed, this app emphasizes thoroughness and efficiency. Points are awarded based on how many squares are solved simultaneously for a given number in one step, encouraging users towards strategic thinking rather than hasty solutions.

Puzzle-sharing is made effortless; users can email puzzles at any stage of completion to friends and share their scores. Recipients have the option to paste these puzzles into their own Smart Sudoku applications, fostering friendly competition or collaboration.

In addition to its robust built-in puzzles, Smart Sudoku allows for importing puzzles from various online sources via established text formats. Users can simply download puzzle strings formatted for Sudoku and seamlessly integrate them into their experience within the app.