Prime Numbers in Crystal in chars. Cheevos Holes Recent Holes Langs Medals Misc All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table brainfuck Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Maze Medal Tally Morse Decoder Morse Encoder Musical Chords Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers Pangram Grep Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku v2 Ten-pin Bowling Time Distance Tongue-twisters United States Vampire Numbers Van Eck Sequence Zodiac Signs γ λ π τ φ √2 𝑒 All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Clojure COBOL Coconut Crystal D Dart Elixir F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript Julia K Lisp Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust sed SQL Swift Tcl TeX V VimL Wren Zig Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Clojure COBOL Coconut Crystal D Dart Elixir F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript Julia K Lisp Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust sed SQL Swift Tcl TeX V VimL Wren Zig Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table brainfuck Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Maze Medal Tally Morse Decoder Morse Encoder Musical Chords Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers Pangram Grep Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku v2 Ten-pin Bowling Time Distance Tongue-twisters United States Vampire Numbers Van Eck Sequence Zodiac Signs γ λ π τ φ √2 𝑒 # Golfer Lang Points Chars Time 1st primo-ppcg 🇹🇭 Crystal 1,000 31 24 Mar 2021 1st Lydxn 🇨🇦 Crystal 1,000 31 12 Jul 2021 1st JayXon 🇺🇸 Crystal 1,000 31 22 Dec 2021 4th radarek 🇵🇱 Crystal 969 32 13 Jun 2022 4th stefangimmillaro Crystal 969 32 4 Mar 2023 6th sisyphus-ppcg 🇦🇺 Crystal 861 36 23 Mar 2021 6th GrayJoKing 🇦🇺 Crystal 861 36 9 Apr 2021 8th emgordon154 Crystal 816 38 6 Dec 2021 8th lynn Crystal 816 38 1 Jun 2022 10th Shanethegamer 🇺🇸 Crystal 795 39 24 Mar 2021 10th SirBogman 🇺🇸 Crystal 795 39 5 Dec 2021 10th MeWhenI 🇻🇦 Crystal 795 39 25 Jun 2022 10th anter69 🇭🇺 Crystal 795 39 24 Feb 2023 14th konovod Crystal 738 42 25 Mar 2021 15th janbehrens 🇩🇪 Crystal 705 44 21 Aug 2021 15th HallMatthew314 Crystal 705 44 16 Dec 2021 17th Yewzir 🇧🇪 Crystal 674 46 6 Dec 2023 18th xNaCly 🇩🇪 Crystal 646 48 6 Jul 2023 19th KatieLG 🇬🇧 Crystal 633 49 22 Oct 2021 20th dokutan Crystal 585 53 5 days ago 21st Ripick Crystal 525 59 18 Jul 2022 22nd arcage 🇯🇵 Crystal 463 67 29 Apr 2021 23rd tomh1012 Crystal 437 71 25 Mar 2021 24th JRaspass 🇬🇧 Crystal 403 77 23 Mar 2021 24th retrohun Crystal 403 77 28 Dec 2022 26th msbranicky Crystal 365 85 7 Sep 2023 27th MaxElf999 Crystal 356 87 13 Dec 2022 28th mokymok 🇺🇸 Crystal 307 101 9 Nov 2021 28th KatieLG-Transpiler 🇬🇧 Crystal 307 101 3 Jul 2022 30th ze-h 🇺🇸 Crystal 301 103 18 May 2023 1–30 of 30