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 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 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 ArkScript 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 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 ArkScript 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 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 468th wuduculfre 850 58 29ms 22 Jul 2025 468th robin-scragg 850 58 12ms 21 Oct 2025 483rd albanian-laundromat 850 77 9ms 22 Oct 2025 484th MeWhenI 🇻🇦 849 65 7ms 24 Dec 2024 485th ovs-code 🇩🇪 849 73 67ms 17 Sep 2023 486th sisyphus-ppcg 🇦🇺 848 89 119ms 25 Jan 2021 486th Bubbler-4 848 89 118ms 1 Jul 2021 488th snoozingnewt 🇨🇦 847 44 111ms 9 Feb 2026 489th jared-hughes 847 55 10ms 31 Jul 2022 489th emgordon154 847 55 12ms 4 Mar 2025 491st ovs-code 🇩🇪 847 81 458ms 15 Jun 2024 492nd jared-hughes 847 84 57ms 31 Jul 2022 493rd emgordon154 847 131 1,613ms 29 Nov 2024 494th Shanethegamer 🇺🇸 845 77 84ms 9 Jun 2022 495th dokutan 844 47 5ms 18 Jul 2025 496th Shanethegamer 🇺🇸 844 50 40ms 22 Mar 2023 496th MeWhenI 🇻🇦 844 50 49ms 22 Mar 2023 498th MeWhenI 🇻🇦 843 57 458ms 17 Jan 2024 498th SirBogman 🇺🇸 843 57 423ms 10 Jun 2024 498th CaedenHarper 🇨🇦 843 57 381ms 9 Dec 2025 501st Steffan153 🇫🇮 843 63 2ms 23 Mar 2023 501st stefangimmillaro 843 63 2ms 18 Sep 2023 501st xsot 🇸🇬 843 63 2ms 6 May 2025 501st KasperKivimaeki 🇫🇮 843 63 2ms 14 Aug 2025 505th MeWhenI 🇻🇦 842 76 37ms 16 Jun 2022 506th btnlq 841 43 265ms 26 Jan 2021 506th primo-ppcg 🇹🇭 841 43 278ms 25 May 2021 508th primo-ppcg 🇹🇭 841 87 29ms 25 Jan 2023 509th DialFrost 🇸🇬 841 132 1,650ms 17 Jan 2026 510th fuzzylojik-golf 🇺🇸 840 22 3ms 6 Sep 2025 511th acotis 839 90 128ms 3 Oct 2025 512th primo-ppcg 🇹🇭 837 85 56ms 18 Jan 2022 512th 09cf 837 85 59ms 24 Sep 2023 514th marcin7Cd 835 59 10ms 16 Jan 2021 514th AlephSquirrel 835 59 11ms 13 May 2021 514th rschwa6308 🇺🇸 835 59 10ms 28 Jun 2021 514th NewDefectus 🇮🇱 835 59 12ms 25 Oct 2021 514th jacksonhenry3 835 59 13ms 21 Dec 2021 514th NicoAdams 835 59 12ms 21 Dec 2021 514th yzhs 🇩🇪 835 59 12ms 7 Jun 2022 514th aksyristos 835 59 10ms 28 Feb 2023 514th BREMAUCY 🇫🇷 835 59 11ms 27 Apr 2023 514th MarcMush 🇫🇷 835 59 10ms 12 Feb 2024 514th CommandLeo 🇮🇹 835 59 11ms 18 Jan 2026 514th pengu1n-master 835 59 11ms 10 Feb 2026 526th GrayJoKing 🇦🇺 833 57 36ms 5 Sep 2024 527th MeWhenI 🇻🇦 832 56 11ms 8 Jun 2022 527th Yewzir 🇧🇪 832 56 10ms 16 Nov 2023 527th voytxt 🇨🇿 832 56 11ms 25 Jan 2025 527th targrik 832 56 11ms 21 Feb 2025 531st sean-niemann 🇺🇸 832 77 41ms 18 Dec 2023 532nd kritixilithos 831 58 3ms 29 May 2024 533rd primo-ppcg 🇹🇭 831 77 1,480ms 30 Nov 2021 534th inventshah 830 64 2ms 17 Nov 2022 534th DialFrost 🇸🇬 830 64 2ms 7 Nov 2025 536th sisyphus-ppcg 🇦🇺 829 60 148ms 25 Feb 2021 537th Kacarott 🇦🇺 828 58 403ms 15 Jan 2024 537th Natanaelel 🇸🇪 828 58 445ms 20 Jan 2024 537th AlephSquirrel 828 58 467ms 21 Jan 2024 537th namelessiw 828 58 402ms 15 Aug 2024 541st Irratix 🇳🇱 827 51 51ms 4 Mar 2022 542nd GrayJoKing 🇦🇺 827 65 4ms 9 Nov 2023 543rd Yewzir 🇧🇪 826 83 486ms 16 Nov 2023 544th MeWhenI 🇻🇦 825 104 278ms 8 Feb 2023 545th MeWhenI 🇻🇦 824 78 119ms 14 Oct 2022 546th Shanethegamer 🇺🇸 823 83 82ms 19 Apr 2022 547th GrayJoKing 🇦🇺 822 81 120ms 14 Mar 2022 547th MeWhenI 🇻🇦 822 81 120ms 15 Nov 2022 549th AGoyet 821 60 13ms 29 Jun 2022 549th betaveros 821 60 20ms 31 Dec 2022 549th AlexanderFair 821 60 11ms 23 Jun 2023 549th Andriamanitra 🇫🇮 821 60 14ms 20 Jul 2023 549th dranjohn 821 60 47ms 15 Sep 2023 549th inverseLorentz 🇦🇺 821 60 11ms 9 Apr 2024 549th 051 🇸🇬 821 60 11ms 1 Aug 2024 549th vgamula 🇺🇦 821 60 33ms 28 Jul 2025 549th LuisGoncalves05 🇵🇹 821 60 11ms 29 Jul 2025 549th luuumine 🇫🇷 821 60 11ms 20 Oct 2025 549th solisolu 821 60 11ms 1 Jan 2026 560th emgordon154 821 105 110ms 4 Dec 2025 First Prev 481–560 of 1,913 Next Last