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Disconnection

Updated on (created ) — Filed under: List Naoki Inaba Paper Ported Puzzle no2x2 shading territory
Shade some cells to form a single shaded zone, without entirely shading a vertex. Each territory must have exactly two shaded blocks.

Based on ruleset by Naoki Inaba

First seen (2008) at PuzLab

This is an example puzzle - tap to interact!

Shade exactly 2 blocks in each region.

All shaded cells must form a single (orthogonally connected) zone.

No vertex can be completely shaded.

Solved!
Rule panels by PinkHoodie on 05/08/2024

Naoki Inaba composed the ruleset and first puzzles of Disconnection (2008), shared at PuzLab, , alongside many other original paper puzzles. This ruleset is also known as Disco.

In 2024 Pedro released the Disconnection interactive app, leveraging the Kudamono Editor system. Pedro derived the programming logic, decided on colours & input modes and created all graphic assets, by tracing SVG paths. Rule panels by PinkHoodie on 05/08/2024.

All puzzles listed on this page have a single, unique solution. Brand-new puzzles are proudly submitted by their authors regularly, while historic puzzles gain a new life in the interactive Kudamono format: here transcribed for the first time, with permission from each author, on a unit-, genre- or general basis.

This set was kindly transcribed by PinkHoodie:

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Start with a blank page (new Disconnection puzzle).

Detailed editing instructions and shortcuts can be found at the manual.

The following custom insertion shortcuts apply to Disconnection:

Keyboard shortcuts for Disconnection (S = solving, E = editing, S/E = both solving and editing )
Glyph When Submode Shortcut Description
www.w3.org/2000/svg'> S—-A → Uauto mode: auto-choose submode based on gesture type and location
www.w3.org/2000/svg'> SsymbolZShaded tile: click or drag to place definitive symbol Shaded tile
www.w3.org/2000/svg'> ElineL → Iedge line (given): drag or click to draw definitive edge line (given)
www.w3.org/2000/svg'> EsymbolXAbsent tile: click or drag to place definitive symbol Absent tile
www.w3.org/2000/svg'> S/Eaux markXcross: click or drag to place auxiliary cross

Pressing an exclusive editing shortcut while solving, or vice-versa, causes a switch into that context. In contrast, shared shortcuts cause no switch, but are instead chosen to match the current context.

To copy the right url, simply follow the button sequence (export) → (link).

Likewise, a puzzle image may be exported via (export) → (picture).

Made a puzzle that you'd like to list here at Pedro's Works? Simply follow the Submission Guide!

When sharing a Disconnection link on other social networks or across the fediverse please also include the hastag #KudamonoEditor in the post. Including the puzzle picture will usually enhance your post.

This table lists external sites and databases referencing Disconnection.

Interlinks - other sites and databases listing this puzzle genre
Site Link Comment
PuzzleSquareJPDisconnectionyou may also share your Disconnection puzzles at PuzzleSquareJP: please include the hashtag #KudamonoEditor in the puzzle description

Please with any issues and suggestions.

There are specific instructions for live conflict highlighting and input issues, for improving the rule panels or reporting non-uniquenesses.

For any other bugs, please:

  • describe what you were trying to do,
  • what happened instead, and
  • send the current url (plus any visible error logs and possibly, supplementary screenshots).

You may check whether your bug is already covered by the unit tests (it may take a few seconds before the page loads fully). Any yellow boxes indicate a failed test. "Performance issues" currently indicate all passed tests, slow or not.

If you find a situation where the live conflict highlighter is not working as you'd expect (e.g. too aggressive, incorrect), please send a small test case url plus a brief explanation of what should be happening instead.

A good test case includes the smallest possible board, with the fewest possible elements, that is still able to unambiguously reproduce the issue.

For interface issues related input modes, or more generally to clicking/touching/dragging, keyboard shortcuts, etc… please submit an input test case, as detailed in the Inputs Initiative.

For simple typos/rewordings, a short email suffices. For more substantial changes, please refer to the rule panels guidelines.

If you find a non-uniqueness in one of the puzzles, please first check whether you are able to contact the puzzle author directly to request a fix.

If that seems impractical, please submit either:

  • a corrected, unique puzzle url (with solution), if you are able to suggest a fix (preferred); or
  • a puzzle url solved up to the point where the puzzle stops being unique; or
  • multiple urls (one per solution)
2024-08-05 Many thanks to PinkHoodie for making the rule panels for Disconnection ディスコネクション, for finding the genre's metadata, transcribing Naoki Inaba's puzzles and making a puzzle for rollout! 2024-08-06 puzzletters A unshade-zones-1,unshade-no-vertex puzzle was crafted by PinkHoodie - thank you. 2024-08-10 puzzletters PinkHoodie sent 1 puzzle using variant hex!