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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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 896th sandorstormen 675 73 13ms 18 Feb 2023 896th Mr-McChicken 675 73 11ms 15 Oct 2023 896th Masttest 675 73 11ms 21 Feb 2024 896th cuvam 🇺🇸 675 73 22ms 5 days ago 905th dokutan 675 99 486ms 24 Sep 2025 906th janbehrens 🇩🇪 674 68 1,441ms 9 Apr 2021 907th msbranicky 674 80 4ms 11 Oct 2023 908th I-Love-47 🇺🇦 672 106 62ms 10 Feb 2022 909th 5quiwyrm 670 54 276ms 5 Dec 2024 910th DialFrost 🇸🇬 667 56 86ms 22 Jul 2024 911th albanian-laundromat 🇺🇸 667 96 43ms 15 days ago 912th CaedenHarper 🇨🇦 666 70 12ms 31 Jan 2025 913th jameslindesay 666 74 13ms 24 Feb 2021 913th PkmnQ 666 74 39ms 5 May 2024 913th RedzGoose 🇦🇺 666 74 12ms 14 Oct 2024 913th yokasuretsu 666 74 13ms 13 Jan 2025 917th 77Tigers 665 114 146ms 9 Apr 2024 918th Natanaelel 🇸🇪 664 56 4ms 20 Jan 2024 919th MeWhenI 🇻🇦 664 69 360ms 15 Feb 2023 919th MarcMush 🇫🇷 664 69 308ms 12 Feb 2024 919th Yewzir 🇧🇪 664 69 383ms 5 Apr 2024 922nd DialFrost 🇸🇬 664 75 159ms 3 Jun 2025 923rd edsrzf 🇳🇿 664 92 2ms 18 days ago 924th dokutan 663 69 774ms 30 Aug 2025 925th prestosilver 🇺🇸 662 101 126ms 88 mins ago 926th SirBogman 🇺🇸 659 108 56ms 3 Jan 2022 927th uttumuttu 🇫🇮 657 71 10ms 8 Jan 2022 927th olleicua 🇺🇸 657 71 11ms 20 Feb 2024 929th Trunksistor 🇫🇷 657 75 11ms 25 May 2022 929th celiendonze 🇨🇭 657 75 13ms 16 Jun 2023 929th qwjhvbxi 657 75 11ms 9 Feb 2024 929th wenbang24 657 75 13ms 6 Apr 2024 933rd annaproxy 657 91 96ms 13 Jan 2023 934th AdrienHache 🇫🇷 655 91 411ms 31 Dec 2023 935th emgordon154 654 65 136ms 6 Sep 2024 936th olivermrose 🇺🇸 652 57 3ms 24 Aug 2021 937th boxjelly 650 65 41ms 11 Feb 2021 937th msbranicky 650 65 42ms 12 Sep 2023 939th Waffle3z 649 76 12ms 20 Jan 2021 939th hellwue 649 76 12ms 16 Nov 2023 939th yuchuehw 649 76 18ms 18 Jan 2024 939th dcc5480 649 76 10ms 13 days ago 943rd codereport 🇨🇦 648 34 34ms 2 hours ago 944th johnnythedoggie 647 106 109ms 3 Mar 2021 944th snoozingnewt 🇨🇦 647 106 104ms 21 Nov 2025 946th rboath 644 58 86ms 8 Jan 2025 947th NickTheEASDude 🇺🇸 643 95 1ms 1 Jul 2024 948th Shanethegamer 🇺🇸 642 97 8ms 22 Dec 2023 949th nephila-nacrea 🇬🇧 641 58 3ms 3 Feb 2021 950th Bubbler-4 641 97 65ms 13 Sep 2023 951st msbranicky 641 134 363ms 3 Oct 2023 952nd f-tucker 640 77 13ms 2 Feb 2024 952nd undefinedRyan 640 77 12ms 19 Apr 2025 952nd Emutis 🇱🇹 640 77 11ms 12 Sep 2025 955th alomiF 640 102 124ms 4 Nov 2024 956th Maznek 639 73 10ms 30 Jun 2023 957th MeWhenI 🇻🇦 638 82 10ms 21 Jul 2023 958th sreyfe 637 119 164ms 9 Jun 2024 959th janbehrens 🇩🇪 637 135 368ms 13 Jun 2021 960th MateuszPietrzak 🇵🇱 636 112 63ms 16 Jan 2024 961st Shanethegamer 🇺🇸 635 57 278ms 27 Jul 2023 962nd MeWhenI 🇻🇦 635 90 2,449ms 24 Oct 2024 963rd emgordon154 635 98 10ms 10 Dec 2024 964th emgordon154 635 186 1,215ms 30 May 2025 965th DialFrost 🇸🇬 634 67 128ms 3 Aug 2024 966th dokutan 634 94 467ms 18 Jul 2025 967th SirBogman 🇺🇸 633 84 2ms 14 Dec 2021 968th janbehrens 🇩🇪 633 136 25ms 9 Jul 2021 969th AkashTandon167 632 78 13ms 25 May 2021 969th jhpaques 🇫🇷 632 78 25ms 30 Nov 2022 971st NewDefectus 🇮🇱 630 59 6ms 25 Oct 2021 972nd madex 🇩🇪 630 67 43ms 22 days ago 973rd Protothor 630 74 9ms 20 Mar 2026 974th Shanethegamer 🇺🇸 626 64 2ms 26 Jul 2023 975th solisolu 626 85 2ms 24 days ago 976th CaedenHarper 🇨🇦 625 107 419ms 6 Oct 2025 977th twocatsinatrenchcoat 624 79 9ms 29 Mar 2022 977th SniperSmiley 🇺🇸 624 79 39ms 23 Jun 2022 977th Glinte 624 79 18ms 14 Dec 2023 977th Bmrl7 624 79 15ms 19 Mar 2024 977th acotis 624 79 12ms 7 Mar 2026 982nd edsrzf 🇳🇿 623 138 306ms 21 Dec 2024 983rd emgordon154 623 151 9ms 6 Oct 2024 984th janbehrens 🇩🇪 621 68 42ms 18 Jan 2021 985th MeWhenI 🇻🇦 621 106 345ms 26 Aug 2023 986th ovs-code 🇩🇪 620 48 176ms 2 Jan 2024 987th Yewzir 🇧🇪 620 64 5ms 16 Nov 2023 988th dokutan 620 106 11ms 24 Mar 2025 989th AkashTandon167 618 86 2ms 25 May 2021 990th MeWhenI 🇻🇦 617 101 12ms 9 May 2024 991st bastienvoirin 🇫🇷 616 80 14ms 4 Feb 2021 991st argusdusty 🇺🇸 616 80 21ms 25 Mar 2021 991st OppositeShark 616 80 12ms 9 Apr 2022 991st WillowWispy 616 80 10ms 16 Mar 2025 995th Shanethegamer 🇺🇸 616 85 4ms 21 Dec 2024 996th codename68 616 123 146ms 13 Aug 2022 997th orthoplex 🇨🇽 615 153 19ms 25 Jun 2023 998th Shanethegamer 🇺🇸 615 192 1,219ms 2 Apr 2025 999th ashtraypettingzoo 🇺🇸 612 36 32ms 23 Feb 2023 1,000th omurakazuaki 🇯🇵 612 69 45ms 19 Feb 2021 First Prev 901–1,000 of 2,008 Next Last