Happy Numbers (Long) in all languages in chars. 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 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 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 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 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 Chars Time Submitted 451st lynn 835 119 152ms 10 Mar 2022 451st ovs-code 🇩🇪 835 119 131ms 23 Jun 2023 451st mousetail 🇳🇱 835 119 141ms 15 Jan 2024 451st kumavale 835 119 131ms 13 Sep 2025 455th ovs-code 🇩🇪 835 180 2,005ms 14 Sep 2025 456th Steffan153 🇫🇮 834 36 209ms 16 Dec 2022 456th ovs-code 🇩🇪 834 36 246ms 31 Dec 2023 458th rak1507 🇬🇧 833 36 37ms 20 Sep 2021 459th Shanethegamer 🇺🇸 833 102 1,336ms 20 Mar 2023 460th primo-ppcg 🇹🇭 832 91 130ms 2 Apr 2022 460th Ripick 832 91 126ms 1 Feb 2023 462nd rucin93 🇵🇱 831 64 147ms 6 Sep 2024 463rd Yewzir 🇧🇪 831 88 3ms 21 Jan 2024 463rd rucin93 🇵🇱 831 88 3ms 22 Apr 2025 465th jared-hughes 831 181 1,998ms 16 Sep 2025 466th stackofbears 829 99 460ms 21 Mar 2022 467th albanian-laundromat 829 105 45ms 7 Sep 2025 468th Shanethegamer 🇺🇸 828 31 5ms 13 Jan 2022 469th pardouin 🇫🇷 828 83 3ms 8 Oct 2024 469th LostSyntax21 🇬🇧 828 83 3ms 8 Jan 2025 471st DialFrost 🇸🇬 828 112 759ms 26 Sep 2025 472nd MeWhenI 🇻🇦 828 113 63ms 29 Nov 2022 473rd Shanethegamer 🇺🇸 828 120 121ms 13 Jan 2022 473rd MeWhenI 🇻🇦 828 120 130ms 9 May 2023 473rd emgordon154 828 120 123ms 14 Mar 2025 476th ovs-code 🇩🇪 828 166 836ms 29 Mar 2025 476th emgordon154 828 166 822ms 21 May 2025 478th MeWhenI 🇻🇦 827 91 119ms 5 Sep 2023 479th prplz 🇦🇺 827 103 124ms 18 Dec 2021 480th albanian-laundromat 825 73 729ms 23 Sep 2025 481st RYNO8 824 72 19ms 28 Sep 2021 481st FlorianCassayre 🇫🇷 824 72 236ms 18 Sep 2023 481st tobeannouncd 824 72 20ms 25 Apr 2025 484th GrayJoKing 🇦🇺 823 50 95ms 19 Sep 2021 484th janlelis 823 50 93ms 20 Sep 2021 484th JayXon 🇺🇸 823 50 94ms 28 Sep 2021 484th sisyphus-ppcg 🇦🇺 823 50 94ms 6 May 2022 484th radarek 🇵🇱 823 50 85ms 25 May 2022 484th sean-niemann 🇺🇸 823 50 113ms 23 Dec 2024 484th pardouin 🇫🇷 823 50 71ms 9 Apr 2025 484th stefangimmillaro 823 50 99ms 27 May 2025 492nd inventshah 823 60 1,055ms 29 Sep 2023 492nd emgordon154 823 60 821ms 18 Nov 2024 494th albanian-laundromat 823 68 377ms 27 days ago 495th IanUtley 823 92 3,264ms 24 Oct 2023 496th inventshah 823 98 543ms 10 Sep 2022 496th MeWhenI 🇻🇦 823 98 12ms 16 Aug 2023 498th sean-niemann 🇺🇸 822 106 43ms 21 Apr 2023 499th sean-niemann 🇺🇸 821 28 75ms 22 Jul 2022 499th lynn 821 28 63ms 22 Jul 2022 499th MeWhenI 🇻🇦 821 28 78ms 23 Jul 2022 499th sisyphus-ppcg 🇦🇺 821 28 59ms 24 Jul 2022 499th jared-hughes 821 28 55ms 29 Jul 2022 499th AlephSquirrel 821 28 66ms 30 Dec 2022 499th Steffan153 🇫🇮 821 28 61ms 12 Jan 2023 499th DialFrost 🇸🇬 821 28 66ms 28 Jan 2023 499th CornerMercury 🇬🇧 821 28 70ms 24 Aug 2023 499th ovs-code 🇩🇪 821 28 63ms 2 Feb 2024 499th snoozingnewt 🇺🇸 821 28 59ms 1 Sep 2024 499th pardouin 🇫🇷 821 28 60ms 21 Sep 2024 499th LostSyntax21 🇬🇧 821 28 59ms 8 Jan 2025 499th edsrzf 🇳🇿 821 28 71ms 9 Mar 2025 499th CaedenHarper 🇨🇦 821 28 54ms 14 Jul 2025 499th fuzzylojik-golf 🇺🇸 821 28 61ms 9 Sep 2025 515th neihousaigaai 821 72 11ms 2 Oct 2021 515th stefangimmillaro 821 72 19ms 29 Sep 2023 515th two-bad 🇬🇧 821 72 16ms 25 Feb 2024 515th KrausRaus 🇺🇸 821 72 21ms 20 days ago 519th andersk 🇺🇸 821 121 125ms 31 Oct 2022 520th kmathis22 820 113 621ms 20 days ago 521st Shanethegamer 🇺🇸 820 114 66ms 18 Dec 2022 521st Yewzir 🇧🇪 820 114 63ms 14 Jan 2024 523rd sean-niemann 🇺🇸 818 92 91ms 8 Oct 2024 524th Shanethegamer 🇺🇸 818 168 975ms 27 Mar 2025 525th sean-niemann 🇺🇸 817 86 3,859ms 30 Oct 2024 First Prev 451–525 of 1,964 Next Last