Language of the Month for August 2022: Knight

Question

In accordance with our meta agreement, since one candidate received more votes than the others, we have a new featured language! Throughout August 2022, our Language of the Month will be:

Knight

What's a Language of the Month?

See the meta post for nominations. In short, during August, those who wish to participate should learn (at least the basics of) Knight, and use it to solve challenges. Participation is completely optional, but is anticipated to be fun!

Information about Knight

Knight is a new programming language created in April 2021 by sampersand. It is a Polish notation language (meaning x + y is + x y, and everything has fixed arity) which is relatively simple. It has some useful string manipulation tools, eval, shell commands, and type coercion.

Interpreters

There is a list of interpreters on the official GitHub page. It has been ported to many languages, even itself.

Here is an interpreter on TIO, a patch to a previous commit to c/golf which updates and fixes some conformance issues. (Note that it memory leaks like crazy and segfaults on malformed inputs).

However, the "preferred" interpreter is c/ast, which is the fastest, most up-to-date interpreter and has actual error checking.

EDIT: I (Steffan) put a JS interpreter on TIO here. It's from the JS implementation on GitHub, but compiled into one file. Note: When putting input into the program, make sure to put a trailing newline. Otherwise, it will infinitely loop, unfortunately.

Resources

• Main GitHub (has spec, test suite, examples)
• Official spec
• Official Discord
• Esolangs.org entry
• SE Chatroom

I (Steffan) will also offer a +100 bounty for any user's 3rd Knight answer in August.

Answer 1

List of all Knight answers posted in August 2022

• Encode the alphabet cipher by Steffan

• Encode the alphabet cipher by Sampersand

• Shifted auto-sum by Steffan

• Product over a range by Steffan

• Transform characters of your choice into "Hello, world!" by Adam

• Repeat Hello World according to another string's length by Adam

• Sum of all integers from 1 to n by Steffan

• The vanilla factorial challenge by Steffan

• The vanilla factorial challenge by Bubbler

• Write a Deadfish Interpreter by Adam

• "Hello, World!" by Adam

• Print a 10 by 10 grid of asterisks by Bubbler

• Determine whether strings are anagrams by Bubbler

• Determine whether strings are anagrams by Sampersand

• Print the last, middle and first character of your code by Bubbler

• Sums of Consecutive Integers by Adam

• Determine whether strings are anagrams by DLosc

• Reverse hex cipher by Steffan

• Multiply numbers by their depth by Steffan

• Reverse hex cipher by Bubbler

• Shortest code to produce non-deterministic output by Bubbler

• Does the start equal the end? by Bubbler

• Triangle area from side lengths by Adam

• "Multiply" two strings by Steffan

• Calculate average characters of string by Steffan

• Erverse Hte Ifrst Wto Eltters fo Aech Owrd by Adam

• Determine whether strings are anagrams by Adam

• Shortest code to produce non-deterministic output by Adam

• Is this a triangle? by Adam

• Summation from a to b by Steffan

• Strange Addition by Steffan

• Additive Persistence by Steffan

• It's Hip to be Square by Adam

• Print an alphabet wave by Adam

• Construct the Identity Matrix by Adam

• Shortest infinite loop producing no output by Adam

• Find ranges of True values in a list by Jonah

• Trick or Treat polyglot by Jonah

• Cryptic Multiplications by Steffan

• Backronymiser឵឵ by Jonah

• Swap every two elements in a list by Steffan

• Lolololololololololololol by Aiden Chow

• Count up forever by Aiden Chow

• Shortest code to produce infinite output by Aiden Chow

• Print 0 to 100 without 1-9 characters by Aiden Chow

• Print A-Z and their alphabet index without using 1,2,4,6 by Aiden Chow

• 1, 2, miss a few, 99, 100 by Aiden Chow

• Triangular code, triangular output by Aiden Chow

• Hello ASCII World! by Aiden Chow

• Print the ASCII Code page by Steffan

• Print the ASCII printable character set by Steffan

• Implement String Projection by Steffan

• Pairs at every distance by Aiden Chow

• Anti-divisors of a number by Aiden Chow

• Implement an Over function by Adam

• Divisor of a string by Steffan

• A better Hexagony template by Aiden Chow

• Could you make me a hexagon please? by Aiden Chow

• Unfolding the Hexagony source code by Aiden Chow

• I reverse the source code, you negate the input! by Aiden Chow

• I reverse the source code, you negate the output! by Aiden Chow

• Smallest subset of characters required for Turing Completeness by Aiden Chow

• Fewest (distinct) characters for Turing Completeness by Aiden Chow

• Numbers with Rotational Symmetry by Aiden Chow

• A challenge for rookies by Aiden Chow

• smallest number of steps for a knight in chess by Aiden Chow

• Prime Challenge by Aiden Chow

• Repeated! Factorials! by Steffan

• Covfefify a string by Steffan

• Print/Output the L-phabet by Steffan

• I'm a palindrome. Are you? by Aiden Chow

• Ot wes thi bist uf tomis by Steffan

• Collatz Conjecture (OEIS A006577) by Adam

• Write a program to elasticize strings by Sampersand

• Find an Illegal String by Sampersand

• Stretch the word by Steffan

• Code-Golf: Permutations by Steffan

• Exploded Suffixes by Steffan

• Interleave strings by Steffan

• Carry-less sum given a base b by Steffan

• Output your Score! by Benji

• Find the number of integers in the range from 1 to N that ends with 2 by Benji

• Radiation Hardening KOTH by Aiden Chow

• Am I divisible by double the sum of my digits? by Aiden Chow

• Dad jokes are fun by Benji

• add entries in the form:

  [<challenge title>](https://codegolf.stackexchange.com/a/<answer-ID>) by [username](https://codegolf.stackexchange.com/users/<user-ID>)
  

List of relevant tips posted in August 2022

• Shorten functions to single characters by Adam

• Remove spaces between variables and functions, rearrange parameters so that a number comes first by Adam

• Use output of assignment to chain assignments by Adam

• Use ASCII and GET to iterate through strings by Adam

• Use coercion by Steffan

• Use T/F instead of 1/0 by Sampersand

• Use & and | instead of I by Sampersand

• add entries in the form:

  [<tip summary>](https://codegolf.stackexchange.com/a/<answer-ID>) by [username](https://codegolf.stackexchange.com/users/<user-ID>)
  

List of relevant challenges posted in August 2022

• add entries in the form:

  [<challenge title>](https://codegolf.stackexchange.com/a/<answer-ID>) by [username](https://codegolf.stackexchange.com/users/<user-ID>)