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 450th JunkIce 504 116 404ms 7 Mar 2025 450th snoozingnewt 🇨🇦 504 116 380ms 28 Sep 2025 453rd petroselo 501 116 11ms 16 Nov 2021 453rd amollberg 🇸🇪 501 116 21ms 30 Jan 2022 453rd CatsAreFluffy 501 116 16ms 10 Jan 2023 453rd JunkIce 501 116 18ms 7 Mar 2025 453rd snoozingnewt 🇨🇦 501 116 18ms 31 Mar 2025 453rd robin-scragg 501 116 89ms 21 Oct 2025 459th dokutan 501 226 7ms 11 Jan 2024 460th tomh1012 500 227 405ms 18 Sep 2025 461st cros107 🇦🇺 493 118 48ms 16 Sep 2025 462nd CaedenHarper 🇨🇦 491 128 822ms 9 Sep 2025 463rd m-tkach 🇺🇦 486 222 2ms 17 Dec 2022 463rd Yewzir 🇧🇪 486 222 2ms 22 Dec 2023 465th knutae 🇳🇴 485 120 10ms 29 Jun 2021 466th two-bad 🇬🇧 485 141 818ms 25 Feb 2024 467th Waffle3z 484 101 64ms 17 Jan 2021 468th Yewzir 🇧🇪 482 362 1,659ms 20 days ago 469th yzhs 🇩🇪 481 180 159ms 24 Jul 2021 470th frosster 480 250 1ms 13 Mar 2025 471st guilhem-roy 🇫🇷 477 122 12ms 28 Feb 2022 471st inverseLorentz 🇦🇺 477 122 108ms 24 Oct 2023 473rd alemelis 473 125 2,181ms 14 Aug 2024 474th dokutan 471 229 2ms 1 May 2024 475th neihousaigaai 470 275 428ms 5 Jan 2022 476th Yewzir 🇧🇪 469 242 350ms 11 Feb 2024 477th jared-hughes 466 233 1,944ms 17 Jul 2022 478th LukasFolwarczny 🇨🇿 462 126 13ms 16 Sep 2022 479th osmith93 458 127 64ms 10 Jul 2022 480th Shanethegamer 🇺🇸 457 248 351ms 12 Dec 2021 481st eranws 456 150 45ms 2 Nov 2022 482nd janbehrens 🇩🇪 455 150 388ms 3 Dec 2023 483rd dokutan 455 249 335ms 21 Aug 2024 484th adamnielson42 🇺🇸 453 93 22ms 20 Nov 2023 485th LucaArgentiUCF 🇮🇹 448 294 115ms 28 Jan 2021 486th yokasuretsu 447 130 30ms 13 Jan 2025 486th WillowWispy 447 130 13ms 16 Mar 2025 488th NickTheEASDude 🇺🇸 444 131 193ms 20 Aug 2024 489th h3ra993huskp 🇯🇵 444 291 525ms 4 days ago 490th FortuiteMan 🇫🇷 441 132 2,291ms 21 Jul 2025 491st MeWhenI 🇻🇦 440 399 30ms 10 Jul 2021 492nd dokutan 438 231 1,267ms 23 Aug 2024 493rd Shanethegamer 🇺🇸 437 113 216ms 4 Dec 2022 494th jacekwladzinski 437 133 11ms 9 Oct 2025 495th dokutan 437 219 2,782ms 23 Oct 2024 496th hiddicop 🇸🇪 436 112 77ms 29 Jan 2021 497th jacobly0 🇺🇸 436 275 1ms 21 Sep 2023 498th glesnick 431 135 152ms 18 Aug 2022 499th madex 🇩🇪 431 250 43ms 27 Oct 2024 500th boxjelly 430 201 147ms 26 Jan 2021 501st MeWhenI 🇻🇦 428 223 43ms 3 Sep 2024 502nd Pyroan 422 138 96ms 14 May 2025 502nd InigoK 🇺🇸 422 138 32ms 25 Aug 2025 504th dokutan 422 226 40ms 24 Aug 2024 505th michelebastione 🇮🇹 418 139 70ms 10 Apr 2021 505th cubed-guy 418 139 23ms 2 Nov 2022 507th dokutan 417 218 6ms 5 May 2024 508th MeWhenI 🇻🇦 416 209 72ms 13 Dec 2022 509th SniperSmiley 🇺🇸 415 140 93ms 30 Jun 2022 509th StefanHabel 🇨🇦 415 140 66ms 21 Apr 2024 511th RYNO8 410 142 17ms 4 Sep 2021 512th Yewzir 🇧🇪 410 203 70ms 9 Mar 2024 513th MeWhenI 🇻🇦 408 724 9ms 28 Nov 2023 514th albanian-laundromat 404 333 986ms 8 Sep 2025 515th Yewzir 🇧🇪 403 207 72ms 7 Jul 2023 516th m-tkach 🇺🇦 401 145 113ms 19 Sep 2021 517th dokutan 400 425 33ms 3 days ago 518th neihousaigaai 398 146 20ms 8 Apr 2021 518th AGoyet 398 146 25ms 29 Jun 2022 520th Yewzir 🇧🇪 397 210 996ms 18 Feb 2024 521st RDShah 396 147 182ms 19 Jan 2021 522nd dokutan 392 445 1,523ms 21 Oct 2025 523rd dokutan 390 703 11ms 28 Jun 2025 524th MeWhenI 🇻🇦 389 202 13ms 15 Nov 2021 525th cure-honey 🇯🇵 389 338 136ms 23 Mar 2021 First Prev 451–525 of 1,677 Next Last