Happy Numbers in C# in bytes. 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 Billiards brainfuck Card Number Validation 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 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 Morse Decoder Morse Encoder 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation 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 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 Morse Decoder Morse Encoder 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time 1st JayXon 🇺🇸 1,000 78 21 Nov 2021 1st Lydxn 🇨🇦 1,000 78 21 Nov 2021 1st btnlq 1,000 78 10 Mar 2023 1st stefangimmillaro 1,000 78 15 Jul 2023 1st namelessiw 1,000 78 8 Aug 2024 6th nwellnhof 🇩🇪 987 79 21 Nov 2021 7th primo-ppcg 🇹🇭 975 80 21 Nov 2021 7th prplz 🇦🇺 975 80 21 Nov 2021 7th annaproxy 975 80 5 May 2022 7th tomtheisen 🇺🇸 975 80 17 Jan 2023 7th Steffan153 🇫🇮 975 80 28 Jan 2023 7th AdrienHache 🇫🇷 975 80 30 May 2023 7th MeWhenI 🇻🇦 975 80 26 Jul 2023 7th DialFrost 🇸🇬 975 80 26 Dec 2024 7th sean-niemann 🇺🇸 975 80 9 Jan 2025 7th Yax42 🇫🇷 975 80 15 Aug 2025 17th fuzzylojik-golf 🇺🇸 963 81 27 days ago 18th Shanethegamer 🇺🇸 940 83 12 May 2023 18th janbehrens 🇩🇪 940 83 26 Nov 2023 18th Yewzir 🇧🇪 940 83 11 Feb 2024 21st hemphen 929 84 28 Aug 2022 22nd ScottHamper 907 86 21 Nov 2021 23rd roavin 839 93 16 May 2022 24th billings7 🇬🇧 813 96 21 May 2024 25th CheeryProgrammer 757 103 21 Nov 2021 25th Matgc04 757 103 22 Aug 2023 25th arctouch-cristiannevianna 757 103 20 Feb 2024 28th Irratix 🇳🇱 750 104 13 Dec 2021 28th ericlangedijk 🇸🇮 750 104 17 Mar 2022 30th kmathis22 729 107 5 days ago 31st dokutan 716 109 28 Apr 2024 32nd iznax 703 111 21 Nov 2021 32nd Re-Adventures 🇮🇳 703 111 15 Apr 2025 34th tomh1012 690 113 5 Sep 2025 35th Hankinabag 672 116 21 Nov 2021 35th snoozingnewt 🇺🇸 672 116 6 hours ago 37th AdrialaD 655 119 21 Nov 2021 38th Meowsan91 🇨🇿 634 123 21 Nov 2021 39th petroselo 624 125 21 Nov 2021 39th wgloverDH 624 125 3 Oct 2023 39th GarethSpring 624 125 3 Oct 2023 39th KatieLG 🇬🇧 624 125 5 May 2024 39th HumanoidCPU 624 125 24 Aug 2024 39th CaedenHarper 🇨🇦 624 125 23 Jan 2025 45th Adix-null 🇱🇹 614 127 30 Jul 2023 46th daniel-skalik 🇨🇿 609 128 21 Nov 2021 46th baltermia 609 128 21 Nov 2021 48th c0d3-4-F00d 🇩🇪 600 130 21 Nov 2021 48th gpikmddk 600 130 12 Aug 2024 50th josephdwalker 595 131 3 Oct 2023 51st hamhub7 586 133 3 Aug 2022 52nd p-vf 🇨🇭 578 135 13 Jul 2022 53rd JunkIce 565 138 23 Feb 2025 54th msbranicky 557 140 28 Aug 2023 55th 0sektor0 542 144 21 Nov 2021 56th bac0id 513 152 30 Jun 2024 57th bschorno 510 153 4 Aug 2022 58th mokymok 🇺🇸 503 155 21 Nov 2021 58th muztanger 503 155 21 Nov 2021 58th retrohun 503 155 27 Dec 2022 58th rifatx 503 155 16 Jul 2024 58th Mabeloid 🇳🇴 503 155 20 Sep 2024 58th juliansiebert 🇩🇪 503 155 2 Mar 2025 64th KatieLG-Transpiler 🇬🇧 491 159 23 Jun 2022 64th ChrisTheisen 491 159 14 Dec 2022 64th zt14427 491 159 4 Mar 2023 67th aliakseikalosha 424 184 21 Nov 2021 67th jiaminglimjm 🇲🇾 424 184 21 Nov 2021 69th adlerzei 396 197 16 Jun 2022 70th tdkkdt 🇷🇺 392 199 21 Nov 2021 71st TRexOnGit 388 201 2 May 2025 72nd PyryL 🇫🇮 333 234 15 Mar 2025 73rd kevinnaviapaiva 234 333 22 Feb 2025 74th lleszczynski-PL 92 847 21 Nov 2021 1–74 of 74
