Kolakoski Sequence in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Tower of Hanoi 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 Multitap Input NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 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 Erlang 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 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 Tower of Hanoi 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 Multitap Input NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 444th m42km 850 58 29ms 25 Nov 2023 444th StefanHabel 🇨🇦 850 58 12ms 20 Apr 2024 444th NickTheEASDude 🇺🇸 850 58 29ms 1 Jul 2024 444th namelessiw 850 58 29ms 27 Jul 2024 444th edsrzf 🇳🇿 850 58 19ms 22 Nov 2024 444th ryyyn 🇺🇸 850 58 27ms 6 Jan 2025 444th croc54 850 58 28ms 9 Jan 2025 444th andrewjc2000 850 58 30ms 11 Mar 2025 444th wuduculfre 850 58 29ms 22 Jul 2025 444th cros107 🇦🇺 850 58 10ms 16 Sep 2025 444th blaztoma 🇱🇹 850 58 29ms 30 Sep 2025 444th robin-scragg 850 58 11ms 21 Oct 2025 463rd MeWhenI 🇻🇦 850 70 326ms 21 Nov 2021 464th albanian-laundromat 850 77 9ms 22 Oct 2025 465th MeWhenI 🇻🇦 849 65 7ms 24 Dec 2024 466th Shanethegamer 🇺🇸 849 67 2,824ms 27 Oct 2024 466th pardouin 🇫🇷 849 67 3,445ms 23 Dec 2024 468th kg583 🇺🇸 849 86 9ms 1 Sep 2025 469th sisyphus-ppcg 🇦🇺 848 89 180ms 25 Jan 2021 469th Bubbler-4 848 89 173ms 1 Jul 2021 471st jared-hughes 847 55 9ms 31 Jul 2022 471st emgordon154 847 55 10ms 4 Mar 2025 473rd ovs-code 🇩🇪 847 81 468ms 15 Jun 2024 474th jared-hughes 847 84 54ms 31 Jul 2022 475th Shanethegamer 🇺🇸 845 77 73ms 9 Jun 2022 476th emgordon154 845 131 1,782ms 29 Nov 2024 477th blaztoma 🇱🇹 844 44 3ms 16 days ago 478th snoozingnewt 🇨🇦 844 101 104ms 3 days ago 479th dokutan 843 47 5ms 18 Jul 2025 480th Shanethegamer 🇺🇸 843 50 34ms 22 Mar 2023 480th MeWhenI 🇻🇦 843 50 34ms 22 Mar 2023 482nd Steffan153 🇫🇮 843 63 2ms 23 Mar 2023 482nd stefangimmillaro 843 63 2ms 18 Sep 2023 482nd xsot 🇸🇬 843 63 2ms 6 May 2025 482nd KasperKivimaeki 🇫🇮 843 63 2ms 14 Aug 2025 486th MeWhenI 🇻🇦 842 57 403ms 17 Jan 2024 486th SirBogman 🇺🇸 842 57 471ms 10 Jun 2024 488th MeWhenI 🇻🇦 842 76 37ms 16 Jun 2022 489th btnlq 841 43 226ms 26 Jan 2021 489th primo-ppcg 🇹🇭 841 43 206ms 25 May 2021 491st fuzzylojik-golf 🇺🇸 840 22 3ms 6 Sep 2025 492nd primo-ppcg 🇹🇭 839 87 29ms 25 Jan 2023 493rd acotis 839 90 144ms 3 Oct 2025 494th primo-ppcg 🇹🇭 837 85 52ms 18 Jan 2022 494th 09cf 837 85 55ms 24 Sep 2023 496th marcin7Cd 835 59 10ms 16 Jan 2021 496th AlephSquirrel 835 59 10ms 13 May 2021 496th rschwa6308 🇺🇸 835 59 10ms 28 Jun 2021 496th NewDefectus 🇮🇱 835 59 13ms 25 Oct 2021 496th jacksonhenry3 835 59 13ms 21 Dec 2021 496th NicoAdams 835 59 14ms 21 Dec 2021 496th yzhs 🇩🇪 835 59 10ms 7 Jun 2022 496th aksyristos 835 59 11ms 28 Feb 2023 496th BREMAUCY 🇫🇷 835 59 11ms 27 Apr 2023 496th MarcMush 🇫🇷 835 59 10ms 12 Feb 2024 506th GrayJoKing 🇦🇺 833 57 36ms 5 Sep 2024 507th MeWhenI 🇻🇦 832 56 9ms 8 Jun 2022 507th Yewzir 🇧🇪 832 56 9ms 16 Nov 2023 507th voytxt 🇨🇿 832 56 9ms 25 Jan 2025 507th targrik 832 56 9ms 21 Feb 2025 511th sean-niemann 🇺🇸 832 77 41ms 18 Dec 2023 512th kritixilithos 831 58 3ms 29 May 2024 513th primo-ppcg 🇹🇭 831 77 1,330ms 30 Nov 2021 514th inventshah 830 64 2ms 17 Nov 2022 514th DialFrost 🇸🇬 830 64 2ms 7 Nov 2025 516th sisyphus-ppcg 🇦🇺 829 60 118ms 25 Feb 2021 517th Kacarott 🇦🇺 828 58 342ms 15 Jan 2024 517th Natanaelel 🇸🇪 828 58 355ms 20 Jan 2024 517th AlephSquirrel 828 58 420ms 21 Jan 2024 517th CaedenHarper 🇨🇦 828 58 370ms 8 Aug 2024 517th namelessiw 828 58 402ms 15 Aug 2024 522nd Irratix 🇳🇱 827 51 33ms 4 Mar 2022 523rd GrayJoKing 🇦🇺 827 65 4ms 9 Nov 2023 524th m-ender 🇩🇪 827 89 164ms 23 Apr 2021 525th Yewzir 🇧🇪 826 83 371ms 16 Nov 2023 First Prev 451–525 of 1,863 Next Last