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 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 Tower of Hanoi 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 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 Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 451st CatsAreFluffy 504 116 461ms 15 Jan 2024 451st JunkIce 504 116 417ms 7 Mar 2025 451st snoozingnewt 🇺🇸 504 116 647ms 28 Sep 2025 454th petroselo 501 116 10ms 16 Nov 2021 454th amollberg 🇸🇪 501 116 23ms 30 Jan 2022 454th CatsAreFluffy 501 116 13ms 10 Jan 2023 454th JunkIce 501 116 18ms 7 Mar 2025 454th snoozingnewt 🇺🇸 501 116 18ms 31 Mar 2025 454th robin-scragg 501 116 71ms 21 Oct 2025 460th dokutan 501 226 7ms 11 Jan 2024 461st tomh1012 500 227 405ms 18 Sep 2025 462nd cros107 🇦🇺 493 118 47ms 16 Sep 2025 463rd CaedenHarper 🇨🇦 491 128 822ms 9 Sep 2025 464th knutae 🇳🇴 485 120 10ms 29 Jun 2021 465th two-bad 🇬🇧 485 141 916ms 25 Feb 2024 466th m-tkach 🇺🇦 485 222 2ms 17 Dec 2022 466th Yewzir 🇧🇪 485 222 2ms 22 Dec 2023 468th Waffle3z 484 101 64ms 17 Jan 2021 469th Yewzir 🇧🇪 482 362 1,659ms 13 days ago 470th yzhs 🇩🇪 481 180 159ms 24 Jul 2021 471st frosster 480 250 2ms 13 Mar 2025 472nd guilhem-roy 🇫🇷 477 122 11ms 28 Feb 2022 472nd inverseLorentz 🇦🇺 477 122 102ms 24 Oct 2023 474th alemelis 473 125 2,181ms 14 Aug 2024 475th dokutan 471 229 2ms 1 May 2024 476th neihousaigaai 470 275 428ms 5 Jan 2022 477th Yewzir 🇧🇪 469 242 350ms 11 Feb 2024 478th jared-hughes 466 233 1,972ms 17 Jul 2022 479th LukasFolwarczny 🇨🇿 462 126 12ms 16 Sep 2022 480th osmith93 458 127 61ms 10 Jul 2022 481st Shanethegamer 🇺🇸 457 248 351ms 12 Dec 2021 482nd eranws 456 150 44ms 2 Nov 2022 483rd janbehrens 🇩🇪 455 150 388ms 3 Dec 2023 484th dokutan 455 249 335ms 21 Aug 2024 485th adamnielson42 🇺🇸 453 93 22ms 20 Nov 2023 486th LucaArgentiUCF 🇮🇹 448 294 115ms 28 Jan 2021 487th yokasuretsu 447 130 31ms 13 Jan 2025 487th WillowWispy 447 130 13ms 16 Mar 2025 489th NickTheEASDude 🇺🇸 444 131 179ms 20 Aug 2024 490th FortuiteMan 🇫🇷 441 132 2,279ms 21 Jul 2025 491st MeWhenI 🇻🇦 439 399 30ms 10 Jul 2021 492nd dokutan 438 231 1,267ms 23 Aug 2024 493rd Shanethegamer 🇺🇸 437 113 217ms 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 2ms 21 Sep 2023 498th glesnick 431 135 168ms 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 dokutan 422 226 40ms 24 Aug 2024 503rd Pyroan 421 138 98ms 14 May 2025 503rd InigoK 🇺🇸 421 138 32ms 25 Aug 2025 505th michelebastione 🇮🇹 418 139 69ms 10 Apr 2021 505th cubed-guy 418 139 24ms 2 Nov 2022 507th dokutan 417 218 6ms 5 May 2024 508th MeWhenI 🇻🇦 416 209 72ms 13 Dec 2022 509th SniperSmiley 🇺🇸 415 140 96ms 30 Jun 2022 509th StefanHabel 🇨🇦 415 140 67ms 21 Apr 2024 511th RYNO8 410 142 14ms 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 80ms 7 Jul 2023 516th m-tkach 🇺🇦 401 145 115ms 19 Sep 2021 517th neihousaigaai 398 146 19ms 8 Apr 2021 517th AGoyet 398 146 25ms 29 Jun 2022 519th Yewzir 🇧🇪 397 210 996ms 18 Feb 2024 520th RDShah 396 147 179ms 19 Jan 2021 521st dokutan 392 445 1,523ms 21 Oct 2025 522nd MeWhenI 🇻🇦 389 202 22ms 15 Nov 2021 523rd cure-honey 🇯🇵 389 338 136ms 23 Mar 2021 524th dokutan 389 703 11ms 28 Jun 2025 525th Schmitt-Very-Cool 387 334 773ms 1 Oct 2025 First Prev 451–525 of 1,665 Next Last