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 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 Chars Time 525th xnor-gate 801 72 22 Dec 2021 525th tobeannouncd 801 72 11 Jan 2024 528th DialFrost 🇸🇬 800 62 21 Jan 2025 529th pardouin 🇫🇷 800 106 24 Aug 2024 530th kevinmchung 799 59 24 Feb 2018 530th benwilliamgraham 799 59 26 Jan 2019 530th mogron 799 59 13 Dec 2019 530th mortimervonchappuis 799 59 17 Mar 2020 530th OllieBoyne 🇬🇧 799 59 16 Jan 2021 530th SnowballSH 799 59 31 Jan 2021 530th vishwathg 799 59 16 Aug 2022 530th StefanHabel 🇨🇦 799 59 11 Dec 2022 530th emirps 799 59 22 Feb 2023 530th AlexanderFair 799 59 2 Jul 2023 530th AVDestroyer 799 59 4 Sep 2023 530th eiburns 799 59 13 Sep 2023 530th m42km 799 59 7 Oct 2023 530th elgan65536 799 59 4 Apr 2024 530th KasperKivimaeki 🇫🇮 799 59 5 Jul 2025 530th dirckvdende 799 59 6 Jul 2025 546th emplv 🇱🇻 797 62 15 Dec 2021 546th rucin93 🇵🇱 797 62 19 Apr 2024 546th vlpx 🇫🇮 797 62 18 Jun 2024 549th SirFireball3521 796 39 22 Mar 2023 550th primo-ppcg 🇹🇭 796 70 4 Jan 2024 550th stefangimmillaro 796 70 14 Jan 2024 552nd clockworknazo 796 82 13 Oct 2022 552nd ovs-code 🇩🇪 796 82 7 Feb 2023 554th MeWhenI 🇻🇦 795 44 12 Aug 2024 554th sisyphus-ppcg 🇦🇺 795 44 12 Aug 2024 554th DialFrost 🇸🇬 795 44 15 Aug 2024 554th ovs-code 🇩🇪 795 44 15 Aug 2024 554th Shanethegamer 🇺🇸 795 44 15 Aug 2024 554th GrayJoKing 🇦🇺 795 44 17 Aug 2024 554th emgordon154 795 44 19 Aug 2024 554th pardouin 🇫🇷 795 44 6 Sep 2024 554th sean-niemann 🇺🇸 795 44 13 Jan 2025 563rd Yewzir 🇧🇪 792 54 14 Dec 2023 563rd dokutan 792 54 19 May 2024 563rd emgordon154 792 54 5 Dec 2024 563rd edsrzf 🇳🇿 792 54 21 Jan 2025 563rd kg583 🇺🇸 792 54 30 Jul 2025 568th neel11235813 790 55 10 Mar 2024 568th albanian-laundromat 790 55 5 days ago 570th flawr 790 73 24 Feb 2019 570th GrayJoKing 🇦🇺 790 73 5 Dec 2020 570th Shanethegamer 🇺🇸 790 73 15 Jul 2021 570th yzhs 🇩🇪 790 73 24 Jul 2021 570th MeWhenI 🇻🇦 790 73 15 Sep 2021 570th sisyphus-ppcg 🇦🇺 790 73 16 Mar 2022 570th DaCuteRaccoon 790 73 30 Nov 2022 570th DialFrost 🇸🇬 790 73 28 Jan 2023 570th scpchicken 🇵🇼 790 73 7 Mar 2023 570th pardouin 🇫🇷 790 73 21 Sep 2024 570th LostSyntax21 🇬🇧 790 73 8 Jan 2025 581st Yewzir 🇧🇪 787 69 6 Dec 2023 582nd MeWhenI 🇻🇦 787 93 18 May 2022 583rd lifthrasiir 🇰🇷 786 28 29 Nov 2024 584th stevelamm 785 60 5 Oct 2018 584th tjtnorton 785 60 29 Nov 2018 584th giacomogallina 785 60 14 Jun 2019 584th cellobix 785 60 14 Aug 2019 584th mizuzimu 785 60 4 Feb 2020 584th ArmaanAS 785 60 8 Mar 2021 584th RDShah 785 60 26 Nov 2021 584th QuincyNash 🇺🇸 785 60 30 Nov 2022 584th msbranicky 785 60 25 Jul 2023 584th Hebelub 785 60 5 Jan 2024 584th dokutan 785 60 23 Jan 2024 584th wh3n3v3r 🇨🇿 785 60 16 Nov 2024 584th JunkIce 785 60 23 Feb 2025 584th ffelixm 785 60 12 Jun 2025 584th RaBa21 🇭🇺 785 60 10 Jul 2025 584th Flekay 🇩🇪 785 60 10 Jul 2025 600th sisyphus-ppcg 🇦🇺 785 108 16 Mar 2022 First Prev 526–600 of 3,043 Next Last