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 Numbrix 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 Numbrix 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 901st emgordon154 641 98 10ms 10 Dec 2024 902nd msbranicky 641 134 277ms 3 Oct 2023 903rd nephila-nacrea 🇬🇧 640 58 3ms 3 Feb 2021 904th f-tucker 640 77 11ms 2 Feb 2024 904th undefinedRyan 640 77 11ms 19 Apr 2025 904th Emutis 🇱🇹 640 77 10ms 12 Sep 2025 907th alomiF 640 102 124ms 4 Nov 2024 908th Bubbler-4 639 97 72ms 13 Sep 2023 909th Maznek 638 73 10ms 30 Jun 2023 910th MeWhenI 🇻🇦 637 82 10ms 21 Jul 2023 911th janbehrens 🇩🇪 636 135 281ms 13 Jun 2021 912th Shanethegamer 🇺🇸 635 57 246ms 27 Jul 2023 913th sreyfe 635 119 162ms 9 Jun 2024 914th MateuszPietrzak 🇵🇱 634 112 67ms 16 Jan 2024 915th DialFrost 🇸🇬 633 67 131ms 3 Aug 2024 916th dokutan 633 94 326ms 18 Jul 2025 917th AkashTandon167 632 78 10ms 25 May 2021 917th jhpaques 🇫🇷 632 78 21ms 30 Nov 2022 919th SirBogman 🇺🇸 632 84 2ms 14 Dec 2021 920th MeWhenI 🇻🇦 632 90 4,253ms 24 Oct 2024 921st emgordon154 632 186 661ms 30 May 2025 922nd NewDefectus 🇮🇱 630 59 6ms 25 Oct 2021 923rd janbehrens 🇩🇪 629 136 25ms 9 Jul 2021 924th Shanethegamer 🇺🇸 625 64 2ms 26 Jul 2023 925th twocatsinatrenchcoat 624 79 9ms 29 Mar 2022 925th SniperSmiley 🇺🇸 624 79 35ms 23 Jun 2022 925th Glinte 624 79 16ms 14 Dec 2023 925th Bmrl7 624 79 14ms 19 Mar 2024 929th CaedenHarper 🇨🇦 624 107 520ms 6 Oct 2025 930th MeWhenI 🇻🇦 622 101 14ms 9 May 2024 931st edsrzf 🇳🇿 622 138 273ms 21 Dec 2024 932nd emgordon154 622 151 8ms 6 Oct 2024 933rd janbehrens 🇩🇪 620 68 38ms 18 Jan 2021 934th ovs-code 🇩🇪 619 48 354ms 2 Jan 2024 935th Yewzir 🇧🇪 619 64 5ms 16 Nov 2023 936th MeWhenI 🇻🇦 619 106 341ms 26 Aug 2023 937th AkashTandon167 618 86 2ms 25 May 2021 938th dokutan 618 106 11ms 24 Mar 2025 939th bastienvoirin 🇫🇷 616 80 16ms 4 Feb 2021 939th argusdusty 🇺🇸 616 80 17ms 25 Mar 2021 939th OppositeShark 616 80 11ms 9 Apr 2022 939th WillowWispy 616 80 9ms 16 Mar 2025 943rd Shanethegamer 🇺🇸 614 85 4ms 21 Dec 2024 944th codename68 614 123 136ms 13 Aug 2022 945th orthoplex 🇨🇽 613 153 19ms 25 Jun 2023 946th Shanethegamer 🇺🇸 612 192 486ms 2 Apr 2025 947th ashtraypettingzoo 🇺🇸 611 36 32ms 23 Feb 2023 948th omurakazuaki 🇯🇵 611 69 38ms 19 Feb 2021 949th Herbert00709 🇵🇱 611 87 2ms 19 Nov 2024 950th Shanethegamer 🇺🇸 610 65 6ms 2 Aug 2022 951st JRaspass 🇬🇧 609 61 3ms 5 Sep 2021 952nd vodker1 608 81 10ms 9 Mar 2022 952nd tooningelaere 608 81 9ms 5 Dec 2022 954th primo-ppcg 🇹🇭 607 110 381ms 2 Aug 2021 954th Lydxn 🇨🇦 607 110 381ms 28 Feb 2022 956th AbhayAravinda 605 77 9ms 1 May 2021 957th Natanaelel 🇸🇪 604 88 2ms 9 May 2024 958th KevinMarquette 🇺🇸 603 60 275ms 21 Oct 2021 959th snoozingnewt 🇨🇦 602 70 38ms 10 Oct 2025 960th ovs-code 🇩🇪 602 80 691ms 5 May 2023 961st janbehrens 🇩🇪 602 111 383ms 21 Oct 2021 961st Irratix 🇳🇱 602 111 378ms 18 Dec 2022 961st Steffan153 🇫🇮 602 111 385ms 10 Feb 2023 964th fynnkroeger 601 82 10ms 24 Mar 2021 964th BrenSchaap 601 82 10ms 21 Oct 2021 964th MichaelMBradley 🇨🇦 601 82 10ms 18 Feb 2022 964th Andrey2001 601 82 11ms 10 days ago 968th MeWhenI 🇻🇦 600 66 6ms 29 May 2023 969th Shanethegamer 🇺🇸 599 62 3ms 8 Dec 2021 970th Mabeloid 🇳🇴 599 126 135ms 26 Oct 2025 971st MeWhenI 🇻🇦 598 71 125ms 3 Aug 2024 972nd GrayJoKing 🇦🇺 598 172 3ms 18 Jan 2021 973rd BBoehm 🇩🇪 597 78 8ms 26 Jan 2021 973rd KatieLG 🇬🇧 597 78 9ms 16 Apr 2021 975th prplz 🇦🇺 596 112 378ms 1 Jun 2021 First Prev 901–975 of 1,866 Next Last