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 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 NFA Simulator 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 NFA Simulator 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 451st RaBa21 🇭🇺 506 115 21ms 1 Aug 2025 452nd CatsAreFluffy 504 116 461ms 15 Jan 2024 452nd JunkIce 504 116 417ms 7 Mar 2025 452nd snoozingnewt 🇺🇸 504 116 647ms 28 Sep 2025 455th petroselo 501 116 10ms 16 Nov 2021 455th amollberg 🇸🇪 501 116 23ms 30 Jan 2022 455th CatsAreFluffy 501 116 13ms 10 Jan 2023 455th JunkIce 501 116 18ms 7 Mar 2025 455th snoozingnewt 🇺🇸 501 116 18ms 31 Mar 2025 455th robin-scragg 501 116 71ms 21 Oct 2025 461st dokutan 501 226 7ms 11 Jan 2024 462nd tomh1012 500 227 405ms 18 Sep 2025 463rd cros107 🇦🇺 493 118 47ms 16 Sep 2025 464th CaedenHarper 🇨🇦 491 128 822ms 9 Sep 2025 465th knutae 🇳🇴 485 120 10ms 29 Jun 2021 466th two-bad 🇬🇧 485 141 916ms 25 Feb 2024 467th m-tkach 🇺🇦 485 222 2ms 17 Dec 2022 467th Yewzir 🇧🇪 485 222 2ms 22 Dec 2023 469th Waffle3z 484 101 64ms 17 Jan 2021 470th Yewzir 🇧🇪 482 362 1,659ms 17 days ago 471st yzhs 🇩🇪 481 180 159ms 24 Jul 2021 472nd frosster 480 250 2ms 13 Mar 2025 473rd guilhem-roy 🇫🇷 477 122 11ms 28 Feb 2022 473rd inverseLorentz 🇦🇺 477 122 102ms 24 Oct 2023 475th alemelis 473 125 2,181ms 14 Aug 2024 476th dokutan 471 229 2ms 1 May 2024 477th neihousaigaai 470 275 428ms 5 Jan 2022 478th Yewzir 🇧🇪 469 242 350ms 11 Feb 2024 479th jared-hughes 466 233 1,972ms 17 Jul 2022 480th LukasFolwarczny 🇨🇿 462 126 12ms 16 Sep 2022 481st osmith93 458 127 61ms 10 Jul 2022 482nd Shanethegamer 🇺🇸 457 248 351ms 12 Dec 2021 483rd eranws 456 150 44ms 2 Nov 2022 484th janbehrens 🇩🇪 455 150 388ms 3 Dec 2023 485th dokutan 455 249 335ms 21 Aug 2024 486th adamnielson42 🇺🇸 453 93 22ms 20 Nov 2023 487th LucaArgentiUCF 🇮🇹 448 294 115ms 28 Jan 2021 488th yokasuretsu 447 130 31ms 13 Jan 2025 488th WillowWispy 447 130 13ms 16 Mar 2025 490th NickTheEASDude 🇺🇸 444 131 179ms 20 Aug 2024 491st h3ra993huskp 🇯🇵 444 291 525ms 32 hours ago 492nd FortuiteMan 🇫🇷 441 132 2,279ms 21 Jul 2025 493rd MeWhenI 🇻🇦 439 399 30ms 10 Jul 2021 494th dokutan 438 231 1,267ms 23 Aug 2024 495th Shanethegamer 🇺🇸 437 113 217ms 4 Dec 2022 496th jacekwladzinski 437 133 11ms 9 Oct 2025 497th dokutan 437 219 2,782ms 23 Oct 2024 498th hiddicop 🇸🇪 436 112 77ms 29 Jan 2021 499th jacobly0 🇺🇸 436 275 2ms 21 Sep 2023 500th glesnick 431 135 168ms 18 Aug 2022 501st madex 🇩🇪 431 250 43ms 27 Oct 2024 502nd boxjelly 430 201 147ms 26 Jan 2021 503rd MeWhenI 🇻🇦 428 223 43ms 3 Sep 2024 504th dokutan 422 226 40ms 24 Aug 2024 505th Pyroan 421 138 98ms 14 May 2025 505th InigoK 🇺🇸 421 138 32ms 25 Aug 2025 507th michelebastione 🇮🇹 418 139 69ms 10 Apr 2021 507th cubed-guy 418 139 24ms 2 Nov 2022 509th dokutan 417 218 6ms 5 May 2024 510th MeWhenI 🇻🇦 416 209 72ms 13 Dec 2022 511th SniperSmiley 🇺🇸 415 140 96ms 30 Jun 2022 511th StefanHabel 🇨🇦 415 140 67ms 21 Apr 2024 513th RYNO8 410 142 14ms 4 Sep 2021 514th Yewzir 🇧🇪 410 203 70ms 9 Mar 2024 515th MeWhenI 🇻🇦 408 724 9ms 28 Nov 2023 516th albanian-laundromat 404 333 986ms 8 Sep 2025 517th Yewzir 🇧🇪 403 207 75ms 7 Jul 2023 518th m-tkach 🇺🇦 401 145 115ms 19 Sep 2021 519th neihousaigaai 398 146 19ms 8 Apr 2021 519th AGoyet 398 146 25ms 29 Jun 2022 521st Yewzir 🇧🇪 397 210 996ms 18 Feb 2024 522nd RDShah 396 147 179ms 19 Jan 2021 523rd dokutan 392 445 1,523ms 21 Oct 2025 524th dokutan 391 435 33ms 36 hours ago 525th MeWhenI 🇻🇦 389 202 22ms 15 Nov 2021 First Prev 451–525 of 1,666 Next Last