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 Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 Continued Fractions 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 Chars Time Submitted 526th neihousaigaai 821 72 10ms 2 Oct 2021 526th stefangimmillaro 821 72 14ms 29 Sep 2023 526th two-bad 🇬🇧 821 72 14ms 25 Feb 2024 526th KrausRaus 🇺🇸 821 72 17ms 14 Oct 2025 530th andersk 🇺🇸 821 121 127ms 31 Oct 2022 531st Shanethegamer 🇺🇸 820 88 2ms 3 days ago 532nd Shanethegamer 🇺🇸 820 114 54ms 18 Dec 2022 532nd Yewzir 🇧🇪 820 114 57ms 14 Jan 2024 534th sean-niemann 🇺🇸 818 92 91ms 8 Oct 2024 535th Shanethegamer 🇺🇸 818 168 519ms 27 Mar 2025 536th jared-hughes 817 83 148ms 11 Sep 2023 537th sean-niemann 🇺🇸 817 86 2,979ms 30 Oct 2024 538th Yewzir 🇧🇪 814 107 42ms 14 Jan 2024 539th Mabeloid 🇳🇴 814 122 134ms 22 days ago 540th Shanethegamer 🇺🇸 813 101 481ms 13 Apr 2023 540th emgordon154 813 101 461ms 26 May 2025 542nd m-tkach 🇺🇦 813 120 28ms 18 Dec 2023 543rd snoozingnewt 🇺🇸 812 66 13ms 1 Sep 2024 543rd LostSyntax21 🇬🇧 812 66 4ms 8 Jan 2025 545th bizy-coder 812 73 159ms 3 Oct 2024 545th Rubiksmath 812 73 165ms 19 Oct 2024 547th snoozingnewt 🇺🇸 812 105 79ms 30 Sep 2025 548th edsrzf 🇳🇿 811 88 11ms 7 Jun 2025 549th janbehrens 🇩🇪 810 73 15ms 20 Sep 2021 549th didion0 🇺🇸 810 73 46ms 23 Nov 2021 549th KatieLG 🇬🇧 810 73 15ms 5 Apr 2022 549th emgordon154 810 73 10ms 7 Nov 2024 553rd Shanethegamer 🇺🇸 810 93 129ms 20 Sep 2021 553rd Yewzir 🇧🇪 810 93 151ms 27 Mar 2024 555th elgan65536 808 123 129ms 5 Mar 2024 556th MeWhenI 🇻🇦 807 71 67ms 5 Apr 2025 557th targrik 807 81 38ms 18 Jul 2025 558th AdrienHache 🇫🇷 807 94 378ms 2 Jun 2023 558th billings7 🇬🇧 807 94 366ms 21 May 2024 560th ovs-code 🇩🇪 806 66 11ms 15 Aug 2024 560th sisyphus-ppcg 🇦🇺 806 66 16ms 19 Aug 2024 562nd snyderek 🇺🇸 806 116 52ms 6 Oct 2024 563rd kimbo 🇺🇸 806 146 261ms 12 Jan 2023 564th GrayJoKing 🇦🇺 805 94 147ms 23 Oct 2023 565th Shanethegamer 🇺🇸 805 100 12ms 10 Sep 2022 566th AlephSquirrel 805 104 4ms 6 Aug 2024 567th MeWhenI 🇻🇦 804 94 64ms 9 May 2024 568th frankgraziano 804 232 37ms 22 days ago 569th KenanSi 802 32 6ms 24 Feb 2022 569th ashtraypettingzoo 🇺🇸 802 32 5ms 5 Apr 2023 571st AlephSquirrel 802 89 15ms 20 Apr 2023 572nd xnor-gate 801 74 140ms 23 Oct 2023 572nd 4atj 801 74 482ms 30 Jun 2025 572nd csharpython 801 74 20ms 17 Jul 2025 575th MeWhenI 🇻🇦 801 90 2ms 10 Oct 2023 576th Steffan153 🇫🇮 801 95 20ms 21 Feb 2023 577th jared-hughes 801 124 131ms 10 Nov 2022 577th Re-Adventures 🇮🇳 801 124 125ms 22 Jun 2023 579th c0d3-4-F00d 🇩🇪 799 74 15ms 5 Jan 2022 579th Maznek 799 74 11ms 19 Jun 2023 579th thisishowmymindworks 🇳🇴 799 74 109ms 9 Jun 2024 579th snoozingnewt 🇺🇸 799 74 14ms 1 Sep 2024 583rd GolfingSuccess 🇬🇷 799 117 58ms 19 Mar 2025 584th GolfingSuccess 🇬🇷 799 172 525ms 19 Jan 2025 585th clockworknazo 798 83 13ms 13 Oct 2022 585th ovs-code 🇩🇪 798 83 13ms 7 Feb 2023 587th brimstonetrader 798 85 139ms 26 Jan 2024 588th inventshah 798 158 411ms 8 Sep 2022 589th albanian-laundromat 797 101 12ms 23 Sep 2025 590th Natanaelel 🇸🇪 796 72 78ms 26 Sep 2023 591st snoozingnewt 🇺🇸 795 148 258ms 4 Feb 2024 592nd dokutan 794 67 192ms 4 Feb 2025 593rd Alessandro-Balconi 🇮🇹 794 77 79ms 14 Jul 2023 594th MeWhenI 🇻🇦 794 100 105ms 15 Oct 2022 595th Shanethegamer 🇺🇸 793 29 83ms 22 Jul 2022 596th primo-ppcg 🇹🇭 793 61 402ms 9 Feb 2022 597th DialFrost 🇸🇬 793 63 239ms 21 Jan 2025 598th msbranicky 793 91 3ms 11 Oct 2023 599th sisyphus-ppcg 🇦🇺 793 96 14ms 7 Apr 2022 599th DialFrost 🇸🇬 793 96 18ms 31 Oct 2024 First Prev 526–600 of 1,986 Next Last