Hitori


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Hitori is a logic puzzle with simple rules and challenging solutions.

The rules of Hitori are simple:
You have to shade some of the cells of the grid according to the rules:
- No number should appear unshaded more than once in a row or a column.
- 2 black cells cannot be adjacent horizontally or vertically.
- All non-shaded cells should be connected in a single group by vertical or horizontal motion.

Video Tutorial
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Hitori

Content & Nickname Policy

A. Scope

Our puzzle websites and apps publish original, programmatically generated logic puzzles. They contain no user-generated content other than player nicknames displayed on leaderboards. There are no comments, chat rooms, forums, file uploads or user profile pages, and puzzles are solved with clicks and selections rather than free-text input.

B. Nickname rules

  1. Nicknames must be 3–15 characters long and may contain only letters and digits. Special characters, spaces, links and email addresses are not technically possible.
  2. Nicknames may not contain profanity, slurs, or references to sexual content, violence or drugs, in any spelling or combination.
  3. Nicknames may not impersonate other people, brands or staff.

C. Screening and enforcement

  1. Every nickname is automatically screened before it is accepted — at registration, on profile change and on social sign-up. A nickname that fails screening is rejected and never appears on the site.
  2. New accounts receive a neutral, system-generated nickname by default.
  3. As an additional safeguard, restricted terms are masked at display time.
  4. The entire user base is re-screened in automated audits, run regularly and whenever the screening rules are updated. Nicknames found in violation are renamed to a neutral Player format, and an audit record is kept.

D. Reporting

To report a nickname or any other concern, use the contact or feedback link available on every page. Reports are reviewed and acted on promptly.

www.puzzle-hitori.com
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