Happy Numbers (Long) in C# in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal 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 Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 1st Lydxn 🇨🇦 1,000 82 486ms 25 Apr 2022 1st JayXon 🇺🇸 1,000 82 462ms 25 Apr 2022 1st tomtheisen 🇺🇸 1,000 82 425ms 9 Feb 2023 1st nwellnhof 🇩🇪 1,000 82 460ms 2 Mar 2023 1st btnlq 1,000 82 465ms 2 Mar 2023 1st Steffan153 🇫🇮 1,000 82 454ms 5 Mar 2023 1st sean-niemann 🇺🇸 1,000 82 446ms 16 May 2024 8th MeWhenI 🇻🇦 932 88 450ms 16 Aug 2023 8th stefangimmillaro 932 88 458ms 18 Sep 2023 8th namelessiw 932 88 503ms 9 Jun 2024 11th DialFrost 🇸🇬 921 89 470ms 16 Nov 2025 12th AdrienHache 🇫🇷 872 94 470ms 2 Jun 2023 12th billings7 🇬🇧 872 94 455ms 21 May 2024 14th Shanethegamer 🇺🇸 845 97 431ms 20 Jun 2022 14th Yax42 🇫🇷 845 97 447ms 7 Jan 2026 16th Yewzir 🇧🇪 804 102 432ms 13 Jan 2024 17th Matgc04 796 103 447ms 22 Aug 2023 17th dokutan 796 103 437ms 23 Nov 2025 19th primo-ppcg 🇹🇭 788 104 448ms 21 Nov 2021 19th Irratix 🇳🇱 788 104 466ms 13 Dec 2021 19th ericlangedijk 🇸🇮 788 104 510ms 17 Mar 2022 19th CaedenHarper 🇨🇦 788 104 436ms 5 Nov 2025 23rd arctouch-cristiannevianna 781 105 483ms 26 May 2023 23rd annaproxy 781 105 470ms 11 Apr 2025 25th janbehrens 🇩🇪 752 109 402ms 21 Nov 2021 26th Re-Adventures 🇮🇳 739 111 435ms 15 Apr 2025 27th snoozingnewt 🇨🇦 707 116 458ms 4 Oct 2025 28th Adix-null 🇱🇹 641 128 468ms 30 Jul 2023 29th michelebastione 🇮🇹 636 129 460ms 13 days ago 30th KatieLG 🇬🇧 631 130 505ms 21 Oct 2022 31st c0d3-4-F00d 🇩🇪 626 131 370ms 21 Nov 2021 32nd hamhub7 612 134 420ms 3 Aug 2022 33rd msbranicky 582 141 390ms 28 Aug 2023 34th tomh1012 566 145 450ms 11 Dec 2025 35th rifatx 526 156 430ms 16 Jul 2024 36th ChrisTheisen 513 160 486ms 19 Dec 2022 37th bac0id 482 170 414ms 30 Jun 2024 38th weliveinhell 🇭🇹 474 173 438ms 23 Sep 2023 39th amazingalek 🇳🇴 448 183 439ms 6 Jan 2026 40th aliakseikalosha 443 185 425ms 21 Nov 2021 41st HumanoidCPU 337 243 434ms 23 Jun 2024 42nd kevinnaviapaiva 246 334 427ms 22 Feb 2025 43rd mwarvik 🇳🇴 144 570 423ms 5 Jan 2026 44th jusaka 144 571 416ms 16 days ago 45th retrohun 115 711 372ms 27 Dec 2022 45th Mabeloid 🇳🇴 115 711 380ms 18 Sep 2024 47th KatieLG-Transpiler 🇬🇧 115 715 400ms 23 Jun 2022 1–47 of 47