Happy Numbers in Prolog 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 λ π τ φ √2 𝑒 All Languages ><> Assembly Bash 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 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 λ π τ φ √2 𝑒 # Golfer Lang Points Chars Time 1st lynn Prolog 1,000 54 15 Nov 2021 1st MeWhenI 🇻🇦 Prolog 1,000 54 15 Nov 2021 1st Lydxn 🇨🇦 Prolog 1,000 54 16 Nov 2021 1st GrayJoKing 🇦🇺 Prolog 1,000 54 18 Nov 2021 1st btnlq Prolog 1,000 54 18 Nov 2021 1st annaproxy Prolog 1,000 54 5 Jan 2022 1st JayXon 🇺🇸 Prolog 1,000 54 15 Feb 2022 8th IanUtley Prolog 794 68 23 Nov 2021 9th Shanethegamer 🇺🇸 Prolog 458 118 14 Nov 2021 9th JRaspass 🇬🇧 Prolog 458 118 14 Nov 2021 9th mokymok 🇺🇸 Prolog 458 118 15 Nov 2021 9th LSWdigital Prolog 458 118 16 Nov 2021 13th KatieLG 🇬🇧 Prolog 355 152 14 Nov 2021 14th Hydrazer 🇵🇼 Prolog 160 338 4 Apr 2022 1–14 of 14