Happy Numbers in Crystal in chars. Cheevos Holes Recent Holes Langs Medals Solutions All Holes 12 Days of Christmas 99 Bottles of Beer Abundant Numbers Arabic to Roman Arrows ASCII Table brainfuck Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Diamonds Divisors Emirp Numbers Emojify Evil Numbers Fibonacci Fizz Buzz Foo Fizz Buzz Bar Fractions Happy Numbers Happy Numbers (Long) Hexdump Intersection ISBN Jacobi Symbol Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers Look and Say Lucky Numbers Lucky Tickets Morse Decoder Morse Encoder Musical Chords Niven Numbers Number Spiral Odious Numbers Ordinal Numbers Pangram Grep Pascal’s Triangle Pernicious Numbers Poker Prime Numbers Prime Numbers (Long) QR Decoder Quine Recamán Reverse Polish Notation Rock-paper-scissors-Spock-lizard Roman to Arabic Rule 110 Seven Segment 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 λ π τ φ √2 𝑒 All Languages ><> Assembly Bash BASIC brainfuck C C# C++ COBOL Crystal D Elixir F# Fortran Go Haskell Hexagony J Java JavaScript Julia K Lisp Lua Nim Pascal Perl PHP PowerShell Prolog Python Raku Ruby Rust sed SQL Swift V VimL Zig Bytes Chars Scoring Bytes Chars Language All ><> Assembly Bash BASIC brainfuck C C# C++ COBOL Crystal D Elixir F# Fortran Go Haskell Hexagony J Java JavaScript Julia K Lisp Lua Nim Pascal Perl PHP PowerShell Prolog Python Raku Ruby Rust sed SQL Swift V VimL Zig Hole All 12 Days of Christmas 99 Bottles of Beer Abundant Numbers Arabic to Roman Arrows ASCII Table brainfuck Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Diamonds Divisors Emirp Numbers Emojify Evil Numbers Fibonacci Fizz Buzz Foo Fizz Buzz Bar Fractions Happy Numbers Happy Numbers (Long) Hexdump Intersection ISBN Jacobi Symbol Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers Look and Say Lucky Numbers Lucky Tickets Morse Decoder Morse Encoder Musical Chords Niven Numbers Number Spiral Odious Numbers Ordinal Numbers Pangram Grep Pascal’s Triangle Pernicious Numbers Poker Prime Numbers Prime Numbers (Long) QR Decoder Quine Recamán Reverse Polish Notation Rock-paper-scissors-Spock-lizard Roman to Arabic Rule 110 Seven Segment 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 λ π τ φ √2 𝑒 # Golfer Lang Points Chars Time 1st JayXon 🇺🇸 Crystal 1,000 40 23 Apr 2021 1st sisyphus-ppcg 🇦🇺 Crystal 1,000 40 9 Jul 2021 1st Lydxn 🇨🇦 Crystal 1,000 40 17 Aug 2021 4th janlelis Crystal 800 50 21 Apr 2021 5th GrayJoKing 🇦🇺 Crystal 755 53 13 Sep 2021 5th primo-ppcg 🇹🇭 Crystal 755 53 22 Sep 2021 7th Shanethegamer 🇺🇸 Crystal 741 54 13 Sep 2021 8th Irratix 🇳🇱 Crystal 714 56 25 Mar 2021 9th MeWhenI 🇻🇦 Crystal 690 58 5 Sep 2021 9th emgordon154 Crystal 690 58 22 Dec 2021 11th stefangimmillaro Crystal 678 59 5 Jan 2022 11th lynn Crystal 678 59 25 May 2022 11th sean-niemann 🇺🇸 Crystal 678 59 26 days ago 14th Natanaelel 🇸🇪 Crystal 625 64 19 Sep 2021 15th yzhs 🇩🇪 Crystal 615 65 3 Aug 2021 16th KatieLG 🇬🇧 Crystal 606 66 3 May 2021 17th konovod Crystal 556 72 25 Mar 2021 18th JRaspass 🇬🇧 Crystal 354 113 23 Mar 2021 19th mokymok 🇺🇸 Crystal 278 144 8 Nov 2021 20th KatieLG-Transpiler Crystal 276 145 5 days ago 21st arcage 🇯🇵 Crystal 268 149 30 Apr 2021 22nd juhanilep Crystal 176 227 11 Apr 2021 1–22 of 22