Kolakoski Constant 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 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 ><> 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 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 401st dokutan 573 199 4ms 12 Aug 2024 402nd BREMAUCY 🇫🇷 570 102 11ms 19 Jul 2025 403rd AlephSquirrel 566 53 91ms 3 Jan 2023 404th stefangimmillaro 563 171 2,367ms 19 Nov 2024 405th m-tkach 🇺🇦 560 240 58ms 17 Dec 2022 406th dokutan 557 217 109ms 28 Mar 2024 407th Natanaelel 🇸🇪 556 88 59ms 10 Sep 2021 408th RockOfStone 556 213 1,687ms 4 Nov 2021 409th jatloe 554 105 60ms 26 Sep 2024 410th MeWhenI 🇻🇦 553 238 304ms 10 Feb 2023 411th dokutan 553 243 409ms 19 Aug 2024 412th KatieLG 🇬🇧 549 89 105ms 7 Jan 2026 413th Shanethegamer 🇺🇸 548 158 301ms 20 May 2022 414th dokutan 548 236 396ms 24 Sep 2025 415th dokutan 547 107 466ms 21 Mar 2025 416th AkashTandon167 544 107 13ms 1 Nov 2021 416th dokutan 544 107 39ms 21 Mar 2025 416th blaztoma 🇱🇹 544 107 33ms 13 Oct 2025 419th olivermrose 🇺🇸 543 90 134ms 28 Oct 2021 419th BrenSchaap 543 90 56ms 13 Nov 2021 421st CaedenHarper 🇨🇦 542 243 308ms 17 Nov 2025 422nd MeWhenI 🇻🇦 540 78 40ms 28 Feb 2025 423rd edsrzf 🇳🇿 540 177 118ms 20 Dec 2024 424th nullie 539 108 116ms 9 Jun 2022 425th CaedenHarper 🇨🇦 539 240 442ms 16 Oct 2025 426th snoozingnewt 🇨🇦 537 110 437ms 14 Oct 2025 427th Yewzir 🇧🇪 537 245 306ms 3 Jan 2024 428th dokutan 537 427 4ms 8 Dec 2023 428th JOrE20 537 427 4ms 20 Dec 2025 430th marcin7Cd 534 109 12ms 9 Feb 2021 430th OllieBoyne 🇬🇧 534 109 154ms 25 May 2022 430th scpchicken 🇵🇼 534 109 12ms 28 Feb 2023 430th CutSandstone 534 109 34ms 8 Jul 2024 434th dokutan 534 371 1,413ms 13 Jan 2025 435th dokutan 533 222 2ms 3 Apr 2024 436th msbranicky 533 247 334ms 3 Oct 2023 436th stefangimmillaro 533 247 437ms 13 Dec 2024 438th scpchicken 🇵🇼 531 93 1,045ms 17 Feb 2023 439th pschmid0 🇺🇸 531 182 193ms 9 Oct 2022 440th jerrandolph 531 248 803ms 26 Sep 2025 441st Yewzir 🇧🇪 530 228 104ms 6 Jul 2023 442nd qpwoeirut 529 110 291ms 11 Aug 2025 442nd Lv0Sys 🇵🇱 529 110 11ms 4 Dec 2025 444th dokutan 527 250 288ms 6 Jan 2024 445th m-tkach 🇺🇦 527 570 25ms 20 Jan 2024 446th SirBogman 🇺🇸 526 205 12ms 2 Jan 2022 447th CedricGebistorf 524 111 11ms 9 Mar 2022 447th Flekay 🇩🇪 524 111 14ms 6 mins ago 449th lynn 523 574 28ms 6 Aug 2023 450th coreynash 522 131 39ms 24 Oct 2023 451st Lv0Sys 🇵🇱 520 94 55ms 4 Dec 2025 452nd Shanethegamer 🇺🇸 520 249 699ms 25 Sep 2025 453rd CaedenHarper 🇨🇦 519 219 437ms 26 Oct 2025 454th namelessiw 518 113 453ms 5 Mar 2024 455th MeWhenI 🇻🇦 518 114 361ms 15 Feb 2023 456th rschwa6308 🇺🇸 515 113 13ms 28 Jun 2021 456th namelessiw 515 113 11ms 11 Jan 2024 456th FortuiteMan 🇫🇷 515 113 68ms 18 Dec 2025 459th johndevou 514 210 33ms 18 Nov 2021 460th MeWhenI 🇻🇦 514 239 209ms 3 Dec 2021 461st commandz0 🇺🇸 513 114 536ms 15 Jan 2024 462nd lifthrasiir 🇰🇷 511 578 8ms 19 Dec 2024 463rd MeWhenI 🇻🇦 511 588 29ms 6 Jun 2023 464th Yewzir 🇧🇪 509 223 5ms 18 Feb 2024 465th dokutan 508 242 206ms 1 Jul 2025 466th RaBa21 🇭🇺 506 115 19ms 1 Aug 2025 467th CatsAreFluffy 505 116 527ms 15 Jan 2024 467th JunkIce 505 116 415ms 7 Mar 2025 469th petroselo 502 116 11ms 16 Nov 2021 469th amollberg 🇸🇪 502 116 25ms 30 Jan 2022 469th CatsAreFluffy 502 116 17ms 10 Jan 2023 469th JunkIce 502 116 19ms 7 Mar 2025 469th robin-scragg 502 116 73ms 21 Oct 2025 474th dokutan 502 226 5ms 11 Jan 2024 475th tomh1012 501 227 484ms 18 Sep 2025 476th m-tkach 🇺🇦 486 222 2ms 17 Dec 2022 476th Yewzir 🇧🇪 486 222 2ms 22 Dec 2023 478th knutae 🇳🇴 485 120 11ms 29 Jun 2021 479th two-bad 🇬🇧 485 141 913ms 25 Feb 2024 480th Waffle3z 484 101 74ms 17 Jan 2021 First Prev 401–480 of 1,753 Next Last