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Short pages about the local site and the four live games. How-tos stay under How to play.

  1. What DIGIGMA is
  2. Play in your browser, on this machine
  3. No account
  4. What “solved” means here
  5. Continue a puzzle you left open
  6. The Solved list
  7. New game and restart
  8. Bands
  9. Why every puzzle has one solution
  10. Lab is not the product
  11. Why play logic puzzles
  12. The pleasure of a unique solution
  13. A short stretch of focus
  14. A quiet hobby
  15. Why guessing feels worse
  16. Three kinds of board
  17. Ten minutes
  18. A longer sit
  19. A good rhythm
  20. Not nineteen chores
  21. Come back tomorrow
  22. Leave a puzzle and continue later
  23. One game today is enough
  24. Switch games when you are stuck
  25. Time is private
  26. Hints when you want them
  27. How to read a board
  28. Notes and pencil marks
  29. Forced moves first
  30. When you are stuck
  31. Check mistakes
  32. Why uniqueness lets you eliminate
  33. Teaching someone the rules
  34. Playing on a phone
  35. Playing at a desk
  36. Sudoku rules
  37. Sudoku for beginners
  38. How to use Notes
  39. A digit that lives in one row of a box
  40. Common Sudoku mistakes
  41. When a Sudoku is actually hard
  42. 9×9 only
  43. Star Battle rules
  44. Star Battle for beginners
  45. What a dot means
  46. Why stars cannot touch, even at a corner
  47. A region that lives on one line
  48. Star Battle sizes
  49. Common Star Battle mistakes
  50. Binary Puzzle rules
  51. Binary Puzzle for beginners
  52. Equal 0s and 1s
  53. No three identical in a line
  54. Why rows and columns must all be different
  55. Binary Puzzle sizes
  56. Common Binary Puzzle mistakes
  57. Which game to open first
  58. Sudoku or Binary Puzzle
  59. Sudoku or Star Battle
  60. Star Battle or Binary Puzzle
  61. Same idea, three boards
  62. A weekend with all three
  63. Logic puzzles you can play in a browser
  64. What is a unique-solution puzzle
  65. How to play Sudoku
  66. How to play Star Battle
  67. How to play Binary Puzzle
  68. A logic puzzle with 0s and 1s
  69. A placement puzzle with stars and regions
  70. Classic 9×9 Sudoku, local

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