Changes Sudoku
Version 1.87
  • Fixed bug finding hardest sudoku puzzle.
Version 1.86
  • Into Sudoku optimized for quad core cpu.
  • The program now works under Windows Vista without administrator rights.
Version 1.85
  • The PayPal site is now opened in the program language.
Version 1.84
  • Added french translation.
  • Candidates can be marked.
  • Nice loop and Forcing chain algoritms rewriten.
  • Added arrows on chains.
  • Added 'search for backdoors' function.
  • Added 'try to solve backdoor' function.
  • Added puzzle clipboard.
  • Solving path can be copied to the clipboard when the computer solves a puzzle.
  • Added simple and advanced toolbars.
  • Bug fixed: autoupdates crashes when Internet Explorer 7 is installed.
  • Highlight candidate function added to filter function.
  • Minor bug fixes.
Version 1.83
  • Added overal XP Look.
  • Fixed some minor german language mistakes.
Version 1.82
  • Fixed bug: the program sometimes generated puzzles with multiple solutions.
Version 1.81
  • Mark invalid move function improved.
  • Minor bug fixes.
Version 1.80
  • Minor bug fixes.
Version 1.79
  • Added Empty Rectangles technique.
  • Added Empty Rectangles documentation.
  • Minor bug fixes.
Version 1.78
  • Fixed strange behaviour puzzle generator: generator fails to find requested puzzle.
Version 1.77
  • Problems Naked triples/quads fixed.
  • German translation improved.
  • Option added: change language.
  • Minor changes/bug fixes.
Version 1.76
  • Problems Naked triples/quads fixed.
  • Manual chain drawing improved.
  • Added weak link drawing.
  • Undo/redo on chain drawing.
  • Added Nice Loop technique.
  • Added Nice Loop documentation.
  • German translation.
  • Rating optimalisation.
  • Option added: other hints by multiple hint requests.
  • Minor changes/bug fixes.
Version 1.75
  • Funtions settings (mask/automask/mark selected) are remembered now.
  • Hint Remote Pairs improved with colors.
  • Hint Forcing Chains improved with candidate colors and lines.
  • Manual candidate coloring and chain drawing added.
  • Hidden pair highlighting fixed.
  • Pointing pair highlighting fixed.
  • Start screen when double click on puzzle from explorer fixed.
  • Some minor changes in documentation (will be improved).
  • Fixed cancel button in generate hardest dialog.
  • Pointing pair improved.
  • Naked subsets improved.
  • Forcing chains improved.
  • Drop down box on most right cells fixed.
  • Generating speed improved when advanced techniques are disabled.
  • Added F5 to solve all singels.
  • Added maximum clues to generate dialog.
  • Minor changes/bug fixes.
Version 1.74
  • Bug fixed: Naked subset algoritms rewritten; not all where found.
  • Minor bug fixes.
Version 1.73
  • Bug fixed: Pointing pair not removes all candidates.
  • Bug fixed: Highlighting hidden subsets.
  • Bug fixed: Highlighting pointing pair.
  • Bug fixed: Mistakes in documentation BUG and documentation Uniqueness.
  • Added: Triple Implication Chain techniques.
  • Added: Triple Implication Chain documentation.
Version 1.72
  • Bug fixed: Paste puzzle with candidate sometimes crashes.
  • Forcing chain improved.
  • Few small bug fixes.
Version 1.71
  • Save function safes candidate values.
  • Copy/paste puzzles with candidates.
  • Paste on startpage creates new puzzle.
Version 1.70
  • Added homepage to help menu.
  • Added version changes to options menu.
  • Corrected some spelling mistakes.
  • Added Ctrl-Q as shortcut for Undo.
Version 1.69
  • Added Forum to community.
  • Some minor bug fixes.
Version 1.68
  • Added BUG solving technique.
  • Adjuster rating/hint for easier hints and better rating.
  • Some minor bug fixes.
Version 1.67
  • Bug fixed: Puzzle level in puzzle generater mixed up in version 1.66.
Version 1.66
  • Bug fixed: Yellow highlighed cell visible in practice puzzle.
  • Bug fixed: Ask hint for specific technique not always worked.
  • Bug fixed: "Get puzzle" button in generate hardest.
  • Bug fixed: Invalid puzzle from generate hardest.
  • Added: Generate custom hardest puzzle.
  • Several minor bug fixes.
  • Some little tweakes at rating system.
Version 1.65
  • Added: Documentation Uniqueness Rectangless 4.
  • Added: Uniqueness Rectangless 4 technique.
Version 1.64
  • Bug fixed: Into Sudoku crashes on non-dutch versions of Windows while generating new puzzle
Version 1.63
  • Added: Documentation Uniqueness Rectangless.
  • Added: Manual check for update.
  • Minor Improvements to error handling and stability.
Version 1.62
  • Added: Ask hint for specific technique.
Version 1.61
  • Added Uniqueness rectangless 1.
  • Added Uniqueness rectangless 2.
  • Added Uniqueness rectangless 3.
  • Improved generating speed.
  • Minor bug fixes.
Version 1.60
  • Improved Forcing Chain technique.
  • Improved (Multi)Color technique.
  • Improved rating/hint algoritm.
  • Added Forcing Chain documentation.
  • Last practice technique saved.
  • Minor bug fixes.
Version 1.58
  • Added Forcing Chain technique.
  • No candidate removal with double click while coloring.
  • No candidate removal with right click while filtering this value.
  • Minor bug fixes.
Version 1.57
  • Added mark invalid moves function.
  • Bug fixed: rate puzzel.
  • Minor bug fixes.
Version 1.56
  • Added XY-Wing documentation.
  • Added XYZ-Wing documentation.
  • Bug fixed: XYZ-Wing was wrongly implemented, this is fixed.
  • Bug fixed: Small hint on (multi)colors no longer shows colors.
Version 1.55
  • Check for updates can be turned off.
  • Added XY-Wing.
  • Added XYZ-Wing.
  • Slightly adjusted puzzle rating.
Version 1.50
  • Added multi colors technique.
  • Added multi colors documentation.
  • Improved colors technique.
  • Slightly adjusted puzzle rating.
Version 1.40
  • Added manual colors.
  • Added first version of Into Sudoku community.
  • Some icons changed.
  • Usability slightly increased.
  • Menu's added.
  • Tab names inproved.
  • Minor bug fixes.
Version 1.32
  • Added Small Hints; F6.
  • Set cell value to Naked Single on double click and on right click.
  • Added function to generate puzzle with highest rating.
  • Set lower priority for puzzle generation.
Version 1.31
  • Color technique improved.
  • Bug fixed: program sometimes crashes when canceling puzzle generation.
  • Minor bug fixes.
  • Faster puzzle generation.
Version 1.3
  • Potential bug fixed: config file saved to wrong location.
  • English description sudoku techniques partly rewritten.
Version 1.2
  • Improved generate custom puzzle dialog.
Version 1.1
  • Version check at startup.
  • Bug fixed: Sudoku crashes while generating puzzle with reflective symmetry.
  • Faster puzzle generation.
  • Color technique added.
  • Default toolbars alignment fixed.
Version 1.0
  • First stable Sudoku version.
  • Added multiple puzzles on 1 page (for printing).
  • Added practice mode.
  • Added filter.
  • Added zoom function.
  • Added letter Sudoku.
  • Added symmetry.