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Sandbox Label the hinged tetrominoes - [FINALIZED]

posted 1y ago by trichoplax‭  ·  edited 1y ago by trichoplax‭

Article code-golf finalized grid
#7: Post edited by user avatar trichoplax‭ · 2023-06-17T17:20:12Z (over 1 year ago)
Mark as finalized
  • Label the hinged tetrominoes
  • Label the hinged tetrominoes - [FINALIZED]
  • Given a hinged tetromino, give it a unique, consistent label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the 5 tetrominoes:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the 22 hinged tetrominoes:
  • [![the 22 hinged tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/hinged_tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/hinged_tetrominoes.svg)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino.
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the hinged tetromino and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the hinged tetromino.
  • - The label for each hinged tetromino can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other hinged tetromino).
  • - Each label must be consistent (a given hinged tetromino must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
  • # Now posted: [Label a hinged tetromino](https://codegolf.codidact.com/posts/288502)
  • ---
  • Given a hinged tetromino, give it a unique, consistent label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the 5 tetrominoes:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the 22 hinged tetrominoes:
  • [![the 22 hinged tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/hinged_tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/hinged_tetrominoes.svg)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino.
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the hinged tetromino and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the hinged tetromino.
  • - The label for each hinged tetromino can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other hinged tetromino).
  • - Each label must be consistent (a given hinged tetromino must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
code-golf grid
code-golf finalized grid
#6: Post edited by user avatar trichoplax‭ · 2023-06-17T17:12:19Z (over 1 year ago)
Pedantic punctuating
  • Given a hinged tetromino, give it a unique, consistent label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the 5 tetrominoes:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the 22 hinged tetrominoes:
  • [![the 22 hinged tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/hinged_tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/hinged_tetrominoes.svg)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the hinged tetromino and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the hinged tetromino
  • - The label for each hinged tetromino can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other hinged tetromino).
  • - Each label must be consistent (a given hinged tetromino must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
  • Given a hinged tetromino, give it a unique, consistent label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the 5 tetrominoes:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the 22 hinged tetrominoes:
  • [![the 22 hinged tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/hinged_tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/hinged_tetrominoes.svg)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino.
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the hinged tetromino and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the hinged tetromino.
  • - The label for each hinged tetromino can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other hinged tetromino).
  • - Each label must be consistent (a given hinged tetromino must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
#5: Post edited by user avatar trichoplax‭ · 2023-06-17T15:34:53Z (over 1 year ago)
Include "consistent" in description to match the output rules
  • Given a hinged tetromino, give it a unique label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the 5 tetrominoes:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the 22 hinged tetrominoes:
  • [![the 22 hinged tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/hinged_tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/hinged_tetrominoes.svg)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the hinged tetromino and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the hinged tetromino
  • - The label for each hinged tetromino can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other hinged tetromino).
  • - Each label must be consistent (a given hinged tetromino must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
  • Given a hinged tetromino, give it a unique, consistent label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the 5 tetrominoes:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the 22 hinged tetrominoes:
  • [![the 22 hinged tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/hinged_tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/hinged_tetrominoes.svg)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the hinged tetromino and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the hinged tetromino
  • - The label for each hinged tetromino can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other hinged tetromino).
  • - Each label must be consistent (a given hinged tetromino must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
#4: Post edited by user avatar trichoplax‭ · 2023-06-17T15:33:13Z (over 1 year ago)
Consistently use "hinged tetromino" rather than "tetraplet"
  • Given a hinged tetromino, give it a unique label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the 5 tetrominoes:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the 22 hinged tetrominoes:
  • [![the 22 hinged tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/hinged_tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/hinged_tetrominoes.svg)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the tetraplet and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the tetraplet
  • - The label for each tetraplet can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other tetraplet).
  • - Each label must be consistent (a given tetraplet must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
  • Given a hinged tetromino, give it a unique label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the 5 tetrominoes:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the 22 hinged tetrominoes:
  • [![the 22 hinged tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/hinged_tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/hinged_tetrominoes.svg)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the hinged tetromino and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the hinged tetromino
  • - The label for each hinged tetromino can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other hinged tetromino).
  • - Each label must be consistent (a given hinged tetromino must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
#3: Post edited by user avatar trichoplax‭ · 2023-06-17T14:17:46Z (over 1 year ago)
Use my own images so they both have consistent design
  • Given a hinged tetromino, give it a unique label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the [5 tetrominoes, thanks to Wikipedia]:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://en.wikipedia.org/wiki/File:All_5_free_tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the [22 hinged tetrominoes, thanks to Wikipedia]:
  • [![the 22 hinged tetrominoes](https://upload.wikimedia.org/wikipedia/commons/4/46/Tetrakings.png)](https://en.wikipedia.org/wiki/File:Tetrakings.png)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the tetraplet and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the tetraplet
  • - The label for each tetraplet can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other tetraplet).
  • - Each label must be consistent (a given tetraplet must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [5 tetrominoes, thanks to Wikipedia]: https://en.wikipedia.org/wiki/File:All_5_free_tetrominoes.svg
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [22 hinged tetrominoes, thanks to Wikipedia]: https://en.wikipedia.org/wiki/File:Tetrakings.png
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
  • Given a hinged tetromino, give it a unique label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the 5 tetrominoes:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the 22 hinged tetrominoes:
  • [![the 22 hinged tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/hinged_tetrominoes.svg)](https://github.com/trichoplax/hinged-tetromino-image/blob/main/hinged_tetrominoes.svg)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the tetraplet and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the tetraplet
  • - The label for each tetraplet can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other tetraplet).
  • - Each label must be consistent (a given tetraplet must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
#2: Post edited by user avatar trichoplax‭ · 2023-06-17T11:25:28Z (over 1 year ago)
Test SVG from a GitHub repo
  • Given a hinged tetromino, give it a unique label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the [5 tetrominoes, thanks to Wikipedia]:
  • [![the 5 tetrominoes](https://upload.wikimedia.org/wikipedia/commons/5/50/All_5_free_tetrominoes.svg)](https://en.wikipedia.org/wiki/File:All_5_free_tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the [22 hinged tetrominoes, thanks to Wikipedia]:
  • [![the 22 hinged tetrominoes](https://upload.wikimedia.org/wikipedia/commons/4/46/Tetrakings.png)](https://en.wikipedia.org/wiki/File:Tetrakings.png)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the tetraplet and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the tetraplet
  • - The label for each tetraplet can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other tetraplet).
  • - Each label must be consistent (a given tetraplet must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [5 tetrominoes, thanks to Wikipedia]: https://en.wikipedia.org/wiki/File:All_5_free_tetrominoes.svg
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [22 hinged tetrominoes, thanks to Wikipedia]: https://en.wikipedia.org/wiki/File:Tetrakings.png
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
  • Given a hinged tetromino, give it a unique label.
  • ## Tetrominoes
  • A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.
  • Here are the [5 tetrominoes, thanks to Wikipedia]:
  • [![the 5 tetrominoes](https://raw.githubusercontent.com/trichoplax/hinged-tetromino-image/main/tetrominoes.svg)](https://en.wikipedia.org/wiki/File:All_5_free_tetrominoes.svg)
  • ## Hinged tetrominoes
  • A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.
  • Here are the [22 hinged tetrominoes, thanks to Wikipedia]:
  • [![the 22 hinged tetrominoes](https://upload.wikimedia.org/wikipedia/commons/4/46/Tetrakings.png)](https://en.wikipedia.org/wiki/File:Tetrakings.png)
  • ## Input
  • - A 4 by 4 grid containing a hinged tetromino
  • - You may take input in any convenient format that does not include full or partial precalculation.
  • - For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the tetraplet and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.
  • ## Output
  • - A label for the tetraplet
  • - The label for each tetraplet can be anything you choose, including nothing (no output).
  • - Each label must be unique (it must not be the label for any other tetraplet).
  • - Each label must be consistent (a given tetraplet must always result in the same label, regardless of rotation, reflection, or translation).
  • ## Scoring
  • This is a [code golf challenge]. Your score is the number of bytes in your code.
  • > Explanations are optional, but I'm more likely to upvote answers that have one.
  • [tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"
  • [5 tetrominoes, thanks to Wikipedia]: https://en.wikipedia.org/wiki/File:All_5_free_tetrominoes.svg
  • [hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"
  • [22 hinged tetrominoes, thanks to Wikipedia]: https://en.wikipedia.org/wiki/File:Tetrakings.png
  • [code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
#1: Initial revision by user avatar trichoplax‭ · 2023-06-17T10:50:04Z (over 1 year ago) 
Label the hinged tetrominoes
Given a hinged tetromino, give it a unique label.

## Tetrominoes
A ***[tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can only be **edge connection**.

Here are the [5 tetrominoes, thanks to Wikipedia]:

[![the 5 tetrominoes](https://upload.wikimedia.org/wikipedia/commons/5/50/All_5_free_tetrominoes.svg)](https://en.wikipedia.org/wiki/File:All_5_free_tetrominoes.svg)

## Hinged tetrominoes
A ***[hinged tetromino]*** is a connected subset of the square tiling, composed of 4 squares, where connection can be **edge connection** or **corner connection**.

Here are the [22 hinged tetrominoes, thanks to Wikipedia]:

[![the 22 hinged tetrominoes](https://upload.wikimedia.org/wikipedia/commons/4/46/Tetrakings.png)](https://en.wikipedia.org/wiki/File:Tetrakings.png)

## Input
- A 4 by 4 grid containing a hinged tetromino
- You may take input in any convenient format that does not include full or partial precalculation.
- For example, this could be a string or sequence of strings, a 1 or 2 dimensional list/array/vector, a sequence of coordinates, or a 16 bit variable where each 1 bit represents part of the tetraplet and each 0 bit represents part of the background. A variable with more than 16 bits where only 16 of the bits are used would also be acceptable.

## Output
- A label for the tetraplet
- The label for each tetraplet can be anything you choose, including nothing (no output).
- Each label must be unique (it must not be the label for any other tetraplet).
- Each label must be consistent (a given tetraplet must always result in the same label, regardless of rotation, reflection, or translation).

## Scoring
This is a [code golf challenge]. Your score is the number of bytes in your code.


> Explanations are optional, but I'm more likely to upvote answers that have one.


[tetromino]: https://en.wikipedia.org/wiki/Tetromino "Wikipedia article on Tetromino"

[5 tetrominoes, thanks to Wikipedia]: https://en.wikipedia.org/wiki/File:All_5_free_tetrominoes.svg

[hinged tetromino]: https://en.wikipedia.org/wiki/Pseudo-polyomino "Wikipedia article on Pseudo-polyomino"

[22 hinged tetrominoes, thanks to Wikipedia]: https://en.wikipedia.org/wiki/File:Tetrakings.png

[code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"
code-golf grid