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 516th snoozingnewt 🇺🇸 821 28 59ms 1 Sep 2024 516th pardouin 🇫🇷 821 28 60ms 21 Sep 2024 516th LostSyntax21 🇬🇧 821 28 59ms 8 Jan 2025 516th edsrzf 🇳🇿 821 28 71ms 9 Mar 2025 516th CaedenHarper 🇨🇦 821 28 54ms 14 Jul 2025 516th fuzzylojik-golf 🇺🇸 821 28 61ms 9 Sep 2025 532nd andersk 🇺🇸 821 121 127ms 31 Oct 2022 533rd Shanethegamer 🇺🇸 820 88 2ms 4 days ago 534th Shanethegamer 🇺🇸 820 114 54ms 18 Dec 2022 534th Yewzir 🇧🇪 820 114 57ms 14 Jan 2024 536th sean-niemann 🇺🇸 818 92 91ms 8 Oct 2024 537th Shanethegamer 🇺🇸 818 168 519ms 27 Mar 2025 538th jared-hughes 817 83 148ms 11 Sep 2023 539th sean-niemann 🇺🇸 817 86 2,979ms 30 Oct 2024 540th Yewzir 🇧🇪 815 107 42ms 14 Jan 2024 541st Mabeloid 🇳🇴 814 122 134ms 23 days ago 542nd Shanethegamer 🇺🇸 813 101 481ms 13 Apr 2023 542nd emgordon154 813 101 461ms 26 May 2025 544th m-tkach 🇺🇦 813 120 28ms 18 Dec 2023 545th snoozingnewt 🇺🇸 812 66 13ms 1 Sep 2024 545th LostSyntax21 🇬🇧 812 66 4ms 8 Jan 2025 547th bizy-coder 812 73 159ms 3 Oct 2024 547th Rubiksmath 812 73 165ms 19 Oct 2024 549th snoozingnewt 🇺🇸 812 105 79ms 30 Sep 2025 550th edsrzf 🇳🇿 811 88 11ms 7 Jun 2025 551st janbehrens 🇩🇪 810 73 15ms 20 Sep 2021 551st didion0 🇺🇸 810 73 46ms 23 Nov 2021 551st KatieLG 🇬🇧 810 73 15ms 5 Apr 2022 551st emgordon154 810 73 10ms 7 Nov 2024 555th Shanethegamer 🇺🇸 810 93 129ms 20 Sep 2021 555th Yewzir 🇧🇪 810 93 151ms 27 Mar 2024 557th elgan65536 808 123 129ms 5 Mar 2024 558th MeWhenI 🇻🇦 807 71 67ms 5 Apr 2025 559th targrik 807 81 38ms 18 Jul 2025 560th AdrienHache 🇫🇷 807 94 378ms 2 Jun 2023 560th billings7 🇬🇧 807 94 366ms 21 May 2024 562nd ovs-code 🇩🇪 806 66 11ms 15 Aug 2024 562nd sisyphus-ppcg 🇦🇺 806 66 16ms 19 Aug 2024 564th snyderek 🇺🇸 806 116 52ms 6 Oct 2024 565th kimbo 🇺🇸 806 146 261ms 12 Jan 2023 566th GrayJoKing 🇦🇺 805 94 147ms 23 Oct 2023 567th Shanethegamer 🇺🇸 805 100 12ms 10 Sep 2022 568th AlephSquirrel 805 104 4ms 6 Aug 2024 569th MeWhenI 🇻🇦 804 94 64ms 9 May 2024 570th frankgraziano 804 232 37ms 23 days ago 571st KenanSi 802 32 6ms 24 Feb 2022 571st ashtraypettingzoo 🇺🇸 802 32 5ms 5 Apr 2023 573rd AlephSquirrel 802 89 15ms 20 Apr 2023 574th xnor-gate 801 74 140ms 23 Oct 2023 574th 4atj 801 74 482ms 30 Jun 2025 574th csharpython 801 74 20ms 17 Jul 2025 577th MeWhenI 🇻🇦 801 90 2ms 10 Oct 2023 578th Steffan153 🇫🇮 801 95 20ms 21 Feb 2023 579th jared-hughes 801 124 131ms 10 Nov 2022 579th Re-Adventures 🇮🇳 801 124 125ms 22 Jun 2023 581st c0d3-4-F00d 🇩🇪 799 74 15ms 5 Jan 2022 581st Maznek 799 74 11ms 19 Jun 2023 581st thisishowmymindworks 🇳🇴 799 74 109ms 9 Jun 2024 581st snoozingnewt 🇺🇸 799 74 14ms 1 Sep 2024 581st blaztoma 🇱🇹 799 74 11ms 6 hours ago 586th GolfingSuccess 🇬🇷 799 117 58ms 19 Mar 2025 587th GolfingSuccess 🇬🇷 799 172 525ms 19 Jan 2025 588th clockworknazo 798 83 13ms 13 Oct 2022 588th ovs-code 🇩🇪 798 83 13ms 7 Feb 2023 590th brimstonetrader 798 85 139ms 26 Jan 2024 591st inventshah 798 158 411ms 8 Sep 2022 592nd albanian-laundromat 797 101 12ms 23 Sep 2025 593rd Natanaelel 🇸🇪 796 72 78ms 26 Sep 2023 594th snoozingnewt 🇺🇸 795 148 258ms 4 Feb 2024 595th dokutan 794 67 192ms 4 Feb 2025 596th Alessandro-Balconi 🇮🇹 794 77 79ms 14 Jul 2023 597th MeWhenI 🇻🇦 794 100 105ms 15 Oct 2022 598th Shanethegamer 🇺🇸 793 29 83ms 22 Jul 2022 599th primo-ppcg 🇹🇭 793 61 402ms 9 Feb 2022 600th DialFrost 🇸🇬 793 63 239ms 21 Jan 2025 First Prev 526–600 of 1,991 Next Last