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 901st primo-ppcg 🇹🇭 676 57 4ms 27 Apr 2023 901st GrayJoKing 🇦🇺 676 57 4ms 20 Aug 2023 901st emgordon154 676 57 4ms 10 Jan 2025 901st sean-niemann 🇺🇸 676 57 4ms 21 Apr 2025 901st kg583 🇺🇸 676 57 4ms 26 Sep 2025 901st edsrzf 🇳🇿 676 57 4ms 26 Sep 2025 907th primo-ppcg 🇹🇭 676 105 1ms 3 Oct 2020 908th Attero 🇸🇪 675 46 132ms 4 May 2020 909th annaproxy 675 80 361ms 5 May 2022 909th Yewzir 🇧🇪 675 80 311ms 8 May 2023 909th DialFrost 🇸🇬 675 80 352ms 26 Dec 2024 912th marcin7Cd 674 78 2ms 17 May 2020 912th lynn 674 78 2ms 2 Oct 2021 912th Steffan153 🇫🇮 674 78 2ms 28 Jan 2023 912th AZTECCO 674 78 2ms 16 Sep 2025 916th gilufin 673 70 73ms 23 May 2021 916th kellantech 673 70 10ms 3 Jun 2023 916th 2011-Chan-Ethan 673 70 81ms 12 Jul 2023 916th Dataen 673 70 10ms 5 Jan 2024 916th katss2 673 70 12ms 14 Aug 2025 921st DialFrost 🇸🇬 672 58 699ms 1 Sep 2025 922nd GrayJoKing 🇦🇺 672 88 1ms 9 Oct 2023 923rd janbehrens 🇩🇪 671 72 2ms 26 Nov 2023 924th HumanoidCPU 671 73 277ms 3 May 2024 925th GrayJoKing 🇦🇺 670 65 3ms 26 Jul 2023 926th MeWhenI 🇻🇦 669 65 426ms 17 Jan 2024 926th snoozingnewt 🇺🇸 669 65 427ms 27 Sep 2025 928th weliveinhell 🇭🇹 668 74 11ms 3 Sep 2023 928th Lv0Sys 🇵🇱 668 74 11ms 31 May 2025 930th inventshah 668 83 3ms 3 Nov 2022 931st rucin93 🇵🇱 667 64 134ms 6 Sep 2024 932nd jared-hughes 667 76 1ms 6 Mar 2022 933rd m-tkach 🇺🇦 666 79 2ms 9 Mar 2023 933rd ovs-code 🇩🇪 666 79 2ms 24 Mar 2024 933rd dokutan 666 79 2ms 1 May 2024 933rd xsot 🇸🇬 666 79 2ms 23 May 2024 933rd DialFrost 🇸🇬 666 79 14ms 17 Dec 2024 933rd Yax42 🇫🇷 666 79 2ms 23 days ago 939th Shanethegamer 🇺🇸 665 89 2ms 9 Oct 2023 939th MeWhenI 🇻🇦 665 89 2ms 10 Oct 2023 941st GolfingSuccess 🇬🇷 665 110 2ms 13 May 2022 942nd tnecio 664 71 10ms 29 Apr 2021 942nd commandblockguy 🇺🇸 664 71 11ms 30 Sep 2022 944th guliyevemil1 🇦🇿 663 87 149ms 20 Apr 2020 944th strout 663 87 176ms 15 Dec 2023 946th DialFrost 🇸🇬 662 73 2ms 5 Nov 2023 946th dokutan 662 73 2ms 27 Mar 2024 948th Steffan153 🇫🇮 662 106 7ms 12 Mar 2023 948th annaproxy 662 106 7ms 12 Mar 2023 948th scpchicken 🇵🇼 662 106 7ms 12 Mar 2023 948th neel11235813 662 106 7ms 14 Mar 2023 948th dokutan 662 106 7ms 1 Apr 2023 948th MeWhenI 🇻🇦 662 106 7ms 23 Nov 2023 948th Yewzir 🇧🇪 662 106 7ms 6 Mar 2024 948th KatieLG 🇬🇧 662 106 7ms 31 Jul 2024 948th Shanethegamer 🇺🇸 662 106 9ms 11 May 2025 948th snoozingnewt 🇺🇸 662 106 9ms 5 Oct 2025 958th pardouin 🇫🇷 661 59 937ms 29 Aug 2025 959th GrayJoKing 🇦🇺 661 69 4ms 29 Apr 2021 959th xsot 🇸🇬 661 69 3ms 16 Jun 2024 961st nathanadams 🇳🇿 659 75 11ms 13 Oct 2021 962nd CaedenHarper 🇨🇦 658 129 263ms 2 days ago 963rd emgordon154 657 80 2ms 22 Dec 2021 963rd GrayJoKing 🇦🇺 657 80 2ms 13 Mar 2022 963rd jared-hughes 657 80 2ms 30 Mar 2022 963rd janbehrens 🇩🇪 657 80 2ms 26 Nov 2023 963rd Herbert00709 🇵🇱 657 80 2ms 8 Jun 2024 963rd roupiq 🇵🇱 657 80 2ms 9 Jun 2024 969th msbranicky 657 90 2ms 11 Oct 2023 970th MeWhenI 🇻🇦 657 108 1ms 20 Apr 2022 971st Yewzir 🇧🇪 655 58 949ms 7 Feb 2024 972nd cure-honey 🇯🇵 655 85 44ms 15 Jul 2021 973rd janlelis 653 45 32ms 22 Jan 2021 974th GrayJoKing 🇦🇺 653 53 18ms 10 Apr 2021 974th scpchicken 🇵🇼 653 53 32ms 23 May 2021 First Prev 901–975 of 3,071 Next Last