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 stefangimmillaro 561 171 2,629ms 19 Nov 2024 402nd m-tkach 🇺🇦 559 240 58ms 17 Dec 2022 403rd Natanaelel 🇸🇪 556 88 59ms 10 Sep 2021 404th dokutan 556 217 109ms 28 Mar 2024 405th jatloe 554 105 56ms 26 Sep 2024 406th RockOfStone 554 213 1,687ms 4 Nov 2021 407th MeWhenI 🇻🇦 553 238 250ms 10 Feb 2023 408th dokutan 552 243 409ms 19 Aug 2024 409th KatieLG 🇬🇧 549 89 105ms 17 days ago 410th Shanethegamer 🇺🇸 548 158 301ms 20 May 2022 411th dokutan 548 236 452ms 24 Sep 2025 412th dokutan 547 107 479ms 21 Mar 2025 413th AkashTandon167 544 107 11ms 1 Nov 2021 413th dokutan 544 107 38ms 21 Mar 2025 413th blaztoma 🇱🇹 544 107 32ms 13 Oct 2025 416th olivermrose 🇺🇸 543 90 134ms 28 Oct 2021 416th BrenSchaap 543 90 56ms 13 Nov 2021 418th CaedenHarper 🇨🇦 541 243 265ms 17 Nov 2025 419th MeWhenI 🇻🇦 540 78 40ms 28 Feb 2025 420th nullie 539 108 115ms 9 Jun 2022 421st edsrzf 🇳🇿 539 177 118ms 20 Dec 2024 422nd CaedenHarper 🇨🇦 539 240 740ms 16 Oct 2025 423rd snoozingnewt 🇨🇦 537 110 396ms 14 Oct 2025 424th Yewzir 🇧🇪 537 245 236ms 3 Jan 2024 425th dokutan 537 427 4ms 8 Dec 2023 425th JOrE20 🇺🇸 537 427 4ms 20 Dec 2025 427th marcin7Cd 534 109 12ms 9 Feb 2021 427th OllieBoyne 🇬🇧 534 109 152ms 25 May 2022 427th scpchicken 🇵🇼 534 109 12ms 28 Feb 2023 427th CutSandstone 534 109 34ms 8 Jul 2024 431st dokutan 532 222 2ms 3 Apr 2024 432nd msbranicky 532 247 288ms 3 Oct 2023 432nd stefangimmillaro 532 247 399ms 13 Dec 2024 434th dokutan 532 371 1,523ms 13 Jan 2025 435th scpchicken 🇵🇼 531 93 1,090ms 17 Feb 2023 436th pschmid0 🇺🇸 531 182 193ms 9 Oct 2022 437th jerrandolph 530 248 740ms 26 Sep 2025 438th qpwoeirut 529 110 295ms 11 Aug 2025 438th Lv0Sys 🇵🇱 529 110 10ms 4 Dec 2025 440th Yewzir 🇧🇪 529 228 104ms 6 Jul 2023 441st SirBogman 🇺🇸 526 205 12ms 2 Jan 2022 442nd dokutan 526 250 253ms 6 Jan 2024 443rd m-tkach 🇺🇦 526 570 25ms 20 Jan 2024 444th CedricGebistorf 524 111 10ms 9 Mar 2022 445th coreynash 522 131 31ms 24 Oct 2023 446th lynn 522 574 28ms 6 Aug 2023 447th Lv0Sys 🇵🇱 520 94 55ms 4 Dec 2025 448th Shanethegamer 🇺🇸 519 249 664ms 25 Sep 2025 449th MeWhenI 🇻🇦 518 114 358ms 15 Feb 2023 450th CaedenHarper 🇨🇦 518 219 437ms 26 Oct 2025 451st namelessiw 517 113 481ms 5 Mar 2024 452nd rschwa6308 🇺🇸 515 113 12ms 28 Jun 2021 452nd namelessiw 515 113 12ms 11 Jan 2024 452nd FortuiteMan 🇫🇷 515 113 64ms 18 Dec 2025 455th commandz0 🇺🇸 513 114 443ms 15 Jan 2024 456th johndevou 513 210 33ms 18 Nov 2021 457th MeWhenI 🇻🇦 513 239 209ms 3 Dec 2021 458th lifthrasiir 🇰🇷 511 578 8ms 19 Dec 2024 459th MeWhenI 🇻🇦 510 588 29ms 6 Jun 2023 460th Yewzir 🇧🇪 509 223 5ms 18 Feb 2024 461st dokutan 507 242 206ms 1 Jul 2025 462nd RaBa21 🇭🇺 506 115 20ms 1 Aug 2025 463rd CatsAreFluffy 504 116 441ms 15 Jan 2024 463rd JunkIce 504 116 456ms 7 Mar 2025 465th petroselo 502 116 10ms 16 Nov 2021 465th amollberg 🇸🇪 502 116 23ms 30 Jan 2022 465th CatsAreFluffy 502 116 15ms 10 Jan 2023 465th JunkIce 502 116 19ms 7 Mar 2025 465th robin-scragg 502 116 72ms 21 Oct 2025 470th dokutan 502 226 5ms 11 Jan 2024 471st tomh1012 500 227 484ms 18 Sep 2025 472nd m-tkach 🇺🇦 486 222 2ms 17 Dec 2022 472nd Yewzir 🇧🇪 486 222 2ms 22 Dec 2023 474th knutae 🇳🇴 485 120 11ms 29 Jun 2021 475th two-bad 🇬🇧 485 141 876ms 25 Feb 2024 476th Waffle3z 484 101 74ms 17 Jan 2021 477th yzhs 🇩🇪 481 180 139ms 24 Jul 2021 478th guilhem-roy 🇫🇷 477 122 11ms 28 Feb 2022 478th inverseLorentz 🇦🇺 477 122 108ms 24 Oct 2023 480th alemelis 473 125 2,218ms 14 Aug 2024 First Prev 401–480 of 1,702 Next Last