v.2.0.0

What's Changed

New Features

• Sudoku Sizes: 4x4 | 6x6 | 8x8 | 9x9 | 12x12 | 16x16
• The solver uses Dancing Links (DLX) - Knuth's Algorithm X - for all solving operations.
• Sudoku Canvas: allows resizing Window

Commits

• Sudoku Sizes by @jo-tools in #21
• DLX Solver by @jo-tools in #22
• WebApp: Sudoku Canvas by @jo-tools in #23
• Xojo 2025r3 | Prepare WinUI by @jo-tools in #24
• Desktop: Sudoku Canvas by @jo-tools in #25
• Desktop: Sudoku Canvas Resize by @jo-tools in #26

Full Changelog: v.1.8.0...v.2.0.0

v.1.8.0

What's Changed

• Exclude Candidates by @jo-tools in #20
  Optionally mark cell candidates that can be excluded
  • Locked Candidates
  • Naked Subsets
  • Hidden Subsets
  • X-Wing
• Refactor Sudoku Logic
  Is now a Module with specialized classes
  • CandidatesSearcher
  • Grid
  • HintsSearcher
  • Puzzle
  • Solver

Full Changelog: v.1.7.0...v.1.8.0

v.1.7.0

What's Changed

This Release improves the Web Application

• JavaScript in own Web SDK Control
• Workarounds to get an acceptable looking PDF (still not perfect)
• API (and Postman Collection) to generate and solve Sudoku Puzzles (Formats: Txt, Json, PDF)
• available as a Docker Image: jotools/sudoku

Commits

• Move JavaScript code into its own Web SDK control by @piradoiv in #16
• Print | PDF: Default Font by @jo-tools in #17
• WebApp PDF Workaround by @jo-tools in #18
• WebApp API by @jo-tools in #19

New Contributors

• @piradoiv made their first contribution in #16

Full Changelog: v.1.6.0...v.1.7.0

v.1.6.0

What's Changed

• Sudoku Web Application by @jo-tools in #15

Full Changelog: v.1.5.1...v.1.6.0

v.1.5.1

What's Changed

• Sudoku: Open | Save as by @jo-tools in #10
• Show Cell Candidates by @jo-tools in #11
• Update App Icon by @jo-tools in #12

Full Changelog: v.1.4.0...v.1.5.1

v.1.5.0

What's Changed

• Sudoku: Open | Save as by @jo-tools in #10
• Show Cell Candidates by @jo-tools in #11

Full Changelog: v.1.4.0...v.1.5.0

v.1.4.0

What's Changed

• Solve Cell Hints by @jo-tools in #8
  • Indicate which cells are most easiest to solve next (Naked Singles, Hidden Singles)
• Solver Strategies by @jo-tools in #9
  • Internal switch between Solver with classic Backtracking or Solver using Strategies

Full Changelog: v.1.3.0...v.1.4.0

v.1.3.0

What's Changed

• macOS 26 App Icon by @jo-tools in #6
• Export PDF | Print by @jo-tools in #7

Full Changelog: v.1.2.0...v.1.3.0

v.1.2.0

What's Changed

• Improve dis/enable Lock by @jo-tools in #3
• Improve generating unique solution by @jo-tools in #4
• UI - Generate Random Sudoku by @jo-tools in #5

Full Changelog: v.1.1.0...v.1.2.0

v.1.1.0

What's Changed

• Generate unique solution by @jo-tools in #2
  • Enforce a unique solution when generating a Sudoku puzzle

Full Changelog: v.1.0.0...v.1.1.0