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 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 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 ArkScript 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 ArkScript 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 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 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 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 401st dokutan 556 217 110ms 28 Mar 2024 402nd jatloe 554 105 56ms 26 Sep 2024 403rd RockOfStone 554 213 1,687ms 4 Nov 2021 404th MeWhenI 🇻🇦 553 238 274ms 10 Feb 2023 405th dokutan 552 243 409ms 19 Aug 2024 406th KatieLG 🇬🇧 549 89 100ms 23 hours ago 407th Shanethegamer 🇺🇸 548 158 301ms 20 May 2022 408th dokutan 548 236 452ms 24 Sep 2025 409th dokutan 547 107 493ms 21 Mar 2025 410th AkashTandon167 544 107 11ms 1 Nov 2021 410th dokutan 544 107 38ms 21 Mar 2025 410th blaztoma 🇱🇹 544 107 32ms 13 Oct 2025 413th olivermrose 🇺🇸 543 90 123ms 28 Oct 2021 413th BrenSchaap 543 90 59ms 13 Nov 2021 415th CaedenHarper 🇨🇦 541 243 274ms 17 Nov 2025 416th MeWhenI 🇻🇦 540 78 40ms 28 Feb 2025 417th nullie 539 108 115ms 9 Jun 2022 418th edsrzf 🇳🇿 539 177 118ms 20 Dec 2024 419th CaedenHarper 🇨🇦 539 240 740ms 16 Oct 2025 420th snoozingnewt 🇨🇦 537 110 439ms 14 Oct 2025 421st Yewzir 🇧🇪 537 245 265ms 3 Jan 2024 422nd dokutan 537 427 4ms 8 Dec 2023 422nd JOrE20 🇺🇸 537 427 4ms 19 days ago 424th marcin7Cd 534 109 12ms 9 Feb 2021 424th OllieBoyne 🇬🇧 534 109 152ms 25 May 2022 424th scpchicken 🇵🇼 534 109 12ms 28 Feb 2023 424th CutSandstone 534 109 34ms 8 Jul 2024 428th dokutan 532 222 2ms 3 Apr 2024 429th msbranicky 532 247 318ms 3 Oct 2023 429th stefangimmillaro 532 247 433ms 13 Dec 2024 431st dokutan 532 371 1,526ms 13 Jan 2025 432nd scpchicken 🇵🇼 531 93 1,090ms 17 Feb 2023 433rd pschmid0 🇺🇸 531 182 199ms 9 Oct 2022 434th jerrandolph 530 248 745ms 26 Sep 2025 435th qpwoeirut 529 110 295ms 11 Aug 2025 435th Lv0Sys 🇵🇱 529 110 10ms 4 Dec 2025 437th Yewzir 🇧🇪 529 228 111ms 6 Jul 2023 438th SirBogman 🇺🇸 526 205 12ms 2 Jan 2022 439th dokutan 526 250 267ms 6 Jan 2024 440th m-tkach 🇺🇦 526 570 25ms 20 Jan 2024 441st CedricGebistorf 524 111 10ms 9 Mar 2022 442nd coreynash 522 131 31ms 24 Oct 2023 443rd lynn 522 574 28ms 6 Aug 2023 444th Lv0Sys 🇵🇱 520 94 53ms 4 Dec 2025 445th Shanethegamer 🇺🇸 519 249 664ms 25 Sep 2025 446th MeWhenI 🇻🇦 518 114 395ms 15 Feb 2023 447th CaedenHarper 🇨🇦 518 219 399ms 26 Oct 2025 448th namelessiw 517 113 481ms 5 Mar 2024 449th rschwa6308 🇺🇸 515 113 12ms 28 Jun 2021 449th namelessiw 515 113 12ms 11 Jan 2024 449th FortuiteMan 🇫🇷 515 113 67ms 21 days ago 452nd johndevou 514 210 33ms 18 Nov 2021 453rd commandblockguy 🇺🇸 513 114 443ms 15 Jan 2024 454th MeWhenI 🇻🇦 513 239 209ms 3 Dec 2021 455th lifthrasiir 🇰🇷 511 578 8ms 19 Dec 2024 456th MeWhenI 🇻🇦 510 588 29ms 6 Jun 2023 457th Yewzir 🇧🇪 509 223 5ms 18 Feb 2024 458th dokutan 507 242 206ms 1 Jul 2025 459th RaBa21 🇭🇺 506 115 20ms 1 Aug 2025 460th CatsAreFluffy 504 116 562ms 15 Jan 2024 460th JunkIce 504 116 458ms 7 Mar 2025 462nd petroselo 502 116 10ms 16 Nov 2021 462nd amollberg 🇸🇪 502 116 23ms 30 Jan 2022 462nd CatsAreFluffy 502 116 15ms 10 Jan 2023 462nd JunkIce 502 116 19ms 7 Mar 2025 462nd robin-scragg 502 116 72ms 21 Oct 2025 467th dokutan 502 226 5ms 11 Jan 2024 468th tomh1012 500 227 444ms 18 Sep 2025 469th CaedenHarper 🇨🇦 491 128 823ms 9 Sep 2025 470th m-tkach 🇺🇦 486 222 2ms 17 Dec 2022 470th Yewzir 🇧🇪 486 222 2ms 22 Dec 2023 472nd knutae 🇳🇴 485 120 11ms 29 Jun 2021 473rd two-bad 🇬🇧 485 141 876ms 25 Feb 2024 474th Waffle3z 484 101 71ms 17 Jan 2021 475th yzhs 🇩🇪 481 180 139ms 24 Jul 2021 476th guilhem-roy 🇫🇷 477 122 11ms 28 Feb 2022 476th inverseLorentz 🇦🇺 477 122 108ms 24 Oct 2023 478th alemelis 473 125 2,464ms 14 Aug 2024 479th frosster 472 250 2ms 13 Mar 2025 480th dokutan 471 229 1ms 1 May 2024 First Prev 401–480 of 1,693 Next Last