Happy Numbers (Long) in all languages 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 Minesweeper 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 Binary Lambda Calculus Calendar Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Minesweeper 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 Binary Lambda Calculus Calendar Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 525th MeWhenI 🇻🇦 848 79 556ms 17 Jan 2024 525th duckyluuk 🇳🇱 848 79 585ms 20 Jun 2024 525th namelessiw 848 79 543ms 14 Jul 2024 525th lifthrasiir 🇰🇷 848 79 415ms 2 Dec 2024 530th MeWhenI 🇻🇦 847 96 121ms 15 Nov 2022 531st Steffan153 🇫🇮 846 89 18ms 3 Feb 2023 531st sisyphus-ppcg 🇦🇺 846 89 19ms 4 Feb 2023 531st edsrzf 🇳🇿 846 89 14ms 35 hours ago 534th Steffan153 🇫🇮 846 99 14ms 12 Dec 2023 535th stefangimmillaro 846 111 338ms 6 Oct 2025 536th MeWhenI 🇻🇦 846 163 1,649ms 28 Mar 2025 537th Yewzir 🇧🇪 845 118 125ms 5 Feb 2024 538th rak1507 🇬🇧 844 36 37ms 20 Sep 2021 539th ovs-code 🇩🇪 844 181 1,530ms 14 Sep 2025 539th jared-hughes 844 181 1,584ms 16 Sep 2025 539th MeWhenI 🇻🇦 844 181 1,567ms 7 days ago 539th Yewzir 🇧🇪 844 181 1,601ms 37 hours ago 543rd albanian-laundromat 843 73 759ms 23 Sep 2025 544th itsjustfreekie 843 83 293ms 20 Sep 2021 544th neihousaigaai 843 83 19ms 3 Jan 2022 544th cesarm4 843 83 193ms 16 Apr 2022 544th nstearns96 🇬🇧 843 83 237ms 27 Jan 2023 544th randolchance 843 83 20ms 16 Feb 2023 544th galloj 🇨🇿 843 83 3,224ms 5 Mar 2023 544th yzhs 🇩🇪 843 83 225ms 23 Jun 2023 544th Yewzir 🇧🇪 843 83 219ms 8 Oct 2023 544th m42km 843 83 295ms 12 Oct 2023 553rd emplv 🇱🇻 842 78 38ms 19 Apr 2024 554th pardouin 🇫🇷 842 83 3ms 8 Oct 2024 554th LostSyntax21 🇬🇧 842 83 3ms 8 Jan 2025 556th ovs-code 🇩🇪 841 190 18ms 9 Jul 2024 557th Waffle3z 840 91 3ms 19 Sep 2021 557th primo-ppcg 🇹🇭 840 91 2ms 23 Sep 2021 557th JayXon 🇺🇸 840 91 3ms 3 Oct 2021 557th Lydxn 🇨🇦 840 91 3ms 9 Apr 2022 557th btnlq 840 91 3ms 27 Dec 2022 557th FlyingPenguin223 840 91 2ms 29 Oct 2024 563rd Shanethegamer 🇺🇸 840 95 106ms 14 Oct 2022 563rd emplv 🇱🇻 840 95 101ms 28 Oct 2022 563rd Yewzir 🇧🇪 840 95 106ms 28 Mar 2024 566th Shanethegamer 🇺🇸 839 31 6ms 13 Jan 2022 567th anter69 🇭🇺 839 57 38ms 30 Sep 2021 568th ovs-code 🇩🇪 839 69 162ms 3 Aug 2024 569th Shanethegamer 🇺🇸 838 95 435ms 16 Dec 2022 570th Irratix 🇳🇱 838 112 53ms 3 Jan 2022 571st lynn 838 119 150ms 10 Mar 2022 571st ovs-code 🇩🇪 838 119 130ms 23 Jun 2023 571st mousetail 🇳🇱 838 119 134ms 15 Jan 2024 574th SirBogman 🇺🇸 837 80 524ms 15 Jan 2024 574th Shanethegamer 🇺🇸 837 80 579ms 16 Jan 2024 574th snoozingnewt 🇺🇸 837 80 911ms 28 Sep 2025 577th edsrzf 🇳🇿 837 100 21ms 5 Jan 2025 578th Shanethegamer 🇺🇸 837 102 1,350ms 20 Mar 2023 579th Yewzir 🇧🇪 834 88 2ms 21 Jan 2024 579th rucin93 🇵🇱 834 88 2ms 22 Apr 2025 581st Bonjour27891 🇻🇳 833 84 62ms 9 Feb 2022 581st RDShah 833 84 335ms 11 May 2022 581st fredrik-bakke 🇳🇴 833 84 287ms 2 Oct 2022 581st jakobkordez 🇸🇮 833 84 21ms 30 Oct 2022 581st thehylian 833 84 20ms 2 Jan 2023 581st badboj40 833 84 297ms 12 Feb 2023 581st firegene 🇮🇪 833 84 20ms 22 Dec 2023 581st moustave 833 84 163ms 26 Nov 2024 581st dokutan 833 84 233ms 24 Dec 2024 590th stackofbears 833 99 460ms 21 Mar 2022 591st albanian-laundromat 833 105 45ms 7 Sep 2025 592nd prplz 🇦🇺 831 103 126ms 18 Dec 2021 592nd dokutan 831 103 81ms 9 days ago 594th MeWhenI 🇻🇦 831 113 54ms 29 Nov 2022 594th kmathis22 831 113 348ms 14 Oct 2025 596th Shanethegamer 🇺🇸 831 120 116ms 13 Jan 2022 596th MeWhenI 🇻🇦 831 120 124ms 9 May 2023 596th emgordon154 831 120 141ms 14 Mar 2025 599th ovs-code 🇩🇪 831 166 1,104ms 29 Mar 2025 599th emgordon154 831 166 1,492ms 21 May 2025 First Prev 526–600 of 1,994 Next Last