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 Continued Fractions 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four 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 Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Continued Fractions 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four 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 Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 401st KatieLG 🇬🇧 580 118 20ms 5 Oct 2025 402nd kmathis22 580 223 773ms 6 Dec 2025 403rd MeWhenI 🇻🇦 574 102 494ms 24 May 2024 404th Yewzir 🇧🇪 574 234 58ms 22 Dec 2023 405th dokutan 573 199 4ms 12 Aug 2024 406th BREMAUCY 🇫🇷 570 102 11ms 19 Jul 2025 407th AlephSquirrel 566 53 80ms 3 Jan 2023 408th Shanethegamer 🇺🇸 565 85 119ms 8 Apr 2021 409th stefangimmillaro 563 171 4,649ms 19 Nov 2024 410th m-tkach 🇺🇦 560 240 57ms 17 Dec 2022 411th dokutan 557 217 146ms 28 Mar 2024 412th RockOfStone 556 213 1,687ms 4 Nov 2021 413th jatloe 554 105 60ms 26 Sep 2024 414th MeWhenI 🇻🇦 553 238 289ms 10 Feb 2023 415th dokutan 553 243 428ms 19 Aug 2024 416th dokutan 552 106 489ms 14 Feb 2026 417th Shanethegamer 🇺🇸 548 158 301ms 20 May 2022 418th dokutan 548 236 396ms 24 Sep 2025 419th Natanaelel 🇸🇪 546 88 61ms 10 Sep 2021 420th AkashTandon167 544 107 11ms 1 Nov 2021 420th dokutan 544 107 39ms 21 Mar 2025 420th TheSecondComing123 544 107 20ms 23 days ago 423rd CaedenHarper 🇨🇦 542 243 292ms 17 Nov 2025 424th MeWhenI 🇻🇦 540 78 38ms 28 Feb 2025 425th edsrzf 🇳🇿 540 177 118ms 20 Dec 2024 426th KatieLG 🇬🇧 539 89 148ms 7 Jan 2026 427th nullie 539 108 116ms 9 Jun 2022 428th CaedenHarper 🇨🇦 539 240 442ms 16 Oct 2025 429th snoozingnewt 🇨🇦 537 110 364ms 14 Oct 2025 430th Yewzir 🇧🇪 537 245 299ms 3 Jan 2024 431st dokutan 537 427 4ms 8 Dec 2023 431st JOrE20 537 427 4ms 20 Dec 2025 433rd marcin7Cd 534 109 12ms 9 Feb 2021 433rd OllieBoyne 🇬🇧 534 109 154ms 25 May 2022 433rd scpchicken 🇵🇼 534 109 12ms 28 Feb 2023 433rd CutSandstone 534 109 34ms 8 Jul 2024 437th dokutan 534 371 1,428ms 13 Jan 2025 438th olivermrose 🇺🇸 533 90 141ms 28 Oct 2021 438th BrenSchaap 533 90 96ms 13 Nov 2021 440th dokutan 533 222 1ms 3 Apr 2024 441st msbranicky 533 247 345ms 3 Oct 2023 441st stefangimmillaro 533 247 477ms 13 Dec 2024 443rd scpchicken 🇵🇼 531 93 1,077ms 17 Feb 2023 444th pschmid0 🇺🇸 531 182 195ms 9 Oct 2022 445th jerrandolph 531 248 793ms 26 Sep 2025 446th Yewzir 🇧🇪 530 228 142ms 6 Jul 2023 447th qpwoeirut 529 110 291ms 11 Aug 2025 447th Lv0Sys 🇵🇱 529 110 11ms 4 Dec 2025 449th dokutan 527 250 289ms 6 Jan 2024 450th m-tkach 🇺🇦 527 570 27ms 20 Jan 2024 451st SirBogman 🇺🇸 526 205 12ms 2 Jan 2022 452nd CedricGebistorf 524 111 10ms 9 Mar 2022 453rd lynn 523 574 28ms 6 Aug 2023 454th coreynash 522 131 32ms 24 Oct 2023 455th Shanethegamer 🇺🇸 520 249 699ms 25 Sep 2025 456th CaedenHarper 🇨🇦 519 219 409ms 26 Oct 2025 457th namelessiw 518 113 433ms 5 Mar 2024 458th MeWhenI 🇻🇦 518 114 352ms 15 Feb 2023 459th rschwa6308 🇺🇸 515 113 13ms 28 Jun 2021 459th namelessiw 515 113 11ms 11 Jan 2024 459th FortuiteMan 🇫🇷 515 113 68ms 18 Dec 2025 462nd johndevou 514 210 33ms 18 Nov 2021 463rd MeWhenI 🇻🇦 514 239 242ms 3 Dec 2021 464th commandz0 🇺🇸 513 114 509ms 15 Jan 2024 465th Lv0Sys 🇵🇱 511 94 52ms 4 Dec 2025 466th lifthrasiir 🇰🇷 511 578 7ms 19 Dec 2024 467th MeWhenI 🇻🇦 511 588 28ms 6 Jun 2023 468th Yewzir 🇧🇪 509 223 5ms 18 Feb 2024 469th dokutan 508 242 244ms 1 Jul 2025 470th RaBa21 🇭🇺 506 115 19ms 1 Aug 2025 471st CatsAreFluffy 505 116 527ms 15 Jan 2024 471st JunkIce 505 116 415ms 7 Mar 2025 473rd petroselo 502 116 10ms 16 Nov 2021 473rd amollberg 🇸🇪 502 116 23ms 30 Jan 2022 473rd CatsAreFluffy 502 116 16ms 10 Jan 2023 473rd JunkIce 502 116 19ms 7 Mar 2025 473rd robin-scragg 502 116 73ms 21 Oct 2025 478th dokutan 502 226 5ms 11 Jan 2024 479th tomh1012 501 227 515ms 18 Sep 2025 480th m-tkach 🇺🇦 486 222 1ms 17 Dec 2022 First Prev 401–480 of 1,763 Next Last