v1.19

Small update. (mild spoilers)

• Updated no-zero edition. Now explains one rule at the bottom of puzzle 11.
• Checkbox at the credits page to help ensure players finish puzzle 12.
• 3 more letters on the puzzle 12 blanks, to explain the system and suggest a course of action.
• Puzzle 10 is now "Distant Signs" not "Splinter from the Previous" because that was a weird name that barely made sense.
• Revised puzzle 3 5 by removing the listed word _ _ _ I S _. Partly because it might be too tricky for an early puzzle. Partly because it created a confusing message. But mostly to remove a mechanic that was too much of a red-herring, as it was not used elsewhere in the book.
• One blot in puzzle 10 is like 10% bigger now. And was added to printable version, in no-zero edition only. (Because it is possibly unfair in the printed version, as the tiny hint pixels may not be visible.)