Happy Numbers 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 Binary Lambda Calculus 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 Binary Lambda Calculus 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 373rd sisyphus-ppcg 🇦🇺 860 59 2ms 8 Jun 2021 373rd Steffan153 🇫🇮 860 59 1ms 25 Apr 2023 378th primo-ppcg 🇹🇭 859 48 99ms 25 Dec 2020 378th sisyphus-ppcg 🇦🇺 859 48 99ms 8 Jun 2021 380th btnlq 856 45 4ms 22 Oct 2023 381st HPWiz 🇳🇿 854 32 51ms 17 Aug 2023 382nd emgordon154 853 51 525ms 13 Apr 2025 382nd CaedenHarper 🇨🇦 853 51 419ms 29 Jul 2025 384th DaCuteRaccoon 853 65 3ms 30 Nov 2022 384th snoozingnewt 🇺🇸 853 65 4ms 1 Sep 2024 384th LostSyntax21 🇬🇧 853 65 2ms 8 Jan 2025 387th stefangimmillaro 849 64 107ms 15 Jul 2023 388th sean-niemann 🇺🇸 848 27 44ms 22 Jul 2022 388th lynn 848 27 50ms 22 Jul 2022 388th MeWhenI 🇻🇦 848 27 45ms 23 Jul 2022 388th sisyphus-ppcg 🇦🇺 848 27 41ms 24 Jul 2022 388th jared-hughes 848 27 41ms 29 Jul 2022 388th DaCuteRaccoon 848 27 43ms 30 Nov 2022 388th AlephSquirrel 848 27 46ms 30 Dec 2022 388th DialFrost 🇸🇬 848 27 42ms 28 Jan 2023 388th CornerMercury 🇬🇧 848 27 42ms 24 Aug 2023 388th ovs-code 🇩🇪 848 27 162ms 2 Feb 2024 388th snoozingnewt 🇺🇸 848 27 44ms 1 Sep 2024 388th pardouin 🇫🇷 848 27 48ms 21 Sep 2024 388th LostSyntax21 🇬🇧 848 27 56ms 8 Jan 2025 388th edsrzf 🇳🇿 848 27 60ms 9 Mar 2025 388th CaedenHarper 🇨🇦 848 27 47ms 14 Jul 2025 388th fuzzylojik-golf 🇺🇸 848 27 45ms 9 Sep 2025 404th sisyphus-ppcg 🇦🇺 848 77 3ms 3 Feb 2023 405th emplv 🇱🇻 848 100 268ms 2 Sep 2021 405th Shanethegamer 🇺🇸 848 100 260ms 29 Mar 2023 405th Yewzir 🇧🇪 848 100 263ms 26 Oct 2023 405th emgordon154 848 100 269ms 17 Jan 2025 405th error256 848 100 254ms 15 Feb 2025 405th plcc0 848 100 277ms 21 Mar 2025 405th fuzzylojik-golf 🇺🇸 848 100 261ms 3 Sep 2025 412th pardouin 🇫🇷 846 26 3ms 14 Apr 2025 413th stefangimmillaro 842 50 121ms 22 Aug 2023 414th MeWhenI 🇻🇦 841 49 97ms 22 Aug 2023 415th Irratix 🇳🇱 841 56 10ms 30 Apr 2022 415th GrayJoKing 🇦🇺 841 56 13ms 7 Jul 2022 415th Alex-x90 🇺🇸 841 56 10ms 28 Jan 2023 415th inventshah 841 56 10ms 28 Jan 2023 415th neel11235813 841 56 11ms 7 Feb 2023 415th roupiq 🇵🇱 841 56 10ms 18 Feb 2024 415th Seek64 🇩🇪 841 56 11ms 15 Jul 2024 415th emgordon154 841 56 10ms 6 Sep 2024 415th DialFrost 🇸🇬 841 56 10ms 26 Dec 2024 415th fuzzylojik-golf 🇺🇸 841 56 11ms 9 Jun 2025 415th duckyluuk 🇳🇱 841 56 11ms 5 Jul 2025 415th BREMAUCY 🇫🇷 841 56 10ms 26 Jul 2025 427th jared-hughes 840 101 255ms 27 Feb 2024 427th edsrzf 🇳🇿 840 101 263ms 26 Oct 2024 427th keelimeguy 🇺🇸 840 101 266ms 28 Apr 2025 430th mcreenan 839 37 168ms 22 Apr 2018 430th ovs-code 🇩🇪 839 37 149ms 31 Dec 2023 432nd MeWhenI 🇻🇦 838 74 471ms 5 Mar 2022 433rd GrayJoKing 🇦🇺 837 42 69ms 13 Sep 2023 433rd Lydxn 🇨🇦 837 42 69ms 13 Sep 2023 433rd Steffan153 🇫🇮 837 42 70ms 15 Sep 2023 433rd primo-ppcg 🇹🇭 837 42 75ms 16 Sep 2023 433rd MeWhenI 🇻🇦 837 42 69ms 2 Nov 2023 433rd Yewzir 🇧🇪 837 42 81ms 7 Mar 2024 433rd pardouin 🇫🇷 837 42 71ms 24 Aug 2024 433rd edsrzf 🇳🇿 837 42 74ms 17 Jan 2025 433rd sean-niemann 🇺🇸 837 42 81ms 7 Apr 2025 433rd DialFrost 🇸🇬 837 42 69ms 7 Apr 2025 433rd fuzzylojik-golf 🇺🇸 837 42 74ms 17 Sep 2025 444th the-zammers 836 69 131ms 2 Dec 2024 445th UnderKoen 🇳🇱 835 85 1ms 1 Jul 2022 445th sisyphus-ppcg 🇦🇺 835 85 1ms 7 Jul 2022 445th m-tkach 🇺🇦 835 85 1ms 8 Mar 2023 445th Lydxn 🇨🇦 835 85 1ms 19 Jul 2023 445th edsrzf 🇳🇿 835 85 2ms 5 Mar 2025 450th msbranicky 832 102 267ms 8 Sep 2023 First Prev 376–450 of 3,071 Next Last