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Kolakoski Sequence 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 Gray Code Decoder Gray Code Encoder 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 898th hiichbindermax 675 73 11ms 26 Feb 2022 898th Omega65536 🇩🇪 675 73 12ms 24 Nov 2022 898th sandorstormen 675 73 13ms 18 Feb 2023 898th Mr-McChicken 675 73 11ms 15 Oct 2023 898th Masttest 675 73 11ms 21 Feb 2024 898th cuvam 🇺🇸 675 73 22ms 4 days ago 907th msbranicky 675 80 4ms 11 Oct 2023 908th I-Love-47 🇺🇦 672 106 62ms 10 Feb 2022 909th 5quiwyrm 671 54 276ms 5 Dec 2024 910th albanian-laundromat 🇺🇸 669 96 43ms 14 days ago 911th DialFrost 🇸🇬 668 56 86ms 22 Jul 2024 912th CaedenHarper 🇨🇦 666 70 12ms 31 Jan 2025 913th jameslindesay 666 74 13ms 24 Feb 2021 913th PkmnQ 666 74 39ms 5 May 2024 913th RedzGoose 🇦🇺 666 74 12ms 14 Oct 2024 913th yokasuretsu 666 74 13ms 13 Jan 2025 917th MeWhenI 🇻🇦 665 69 360ms 15 Feb 2023 917th MarcMush 🇫🇷 665 69 308ms 12 Feb 2024 917th Yewzir 🇧🇪 665 69 383ms 5 Apr 2024 917th dokutan 665 69 774ms 30 Aug 2025 921st DialFrost 🇸🇬 665 75 159ms 3 Jun 2025 922nd edsrzf 🇳🇿 665 92 2ms 16 days ago 923rd 77Tigers 665 114 146ms 9 Apr 2024 924th Natanaelel 🇸🇪 664 56 4ms 20 Jan 2024 925th SirBogman 🇺🇸 660 108 56ms 3 Jan 2022 926th annaproxy 659 91 96ms 13 Jan 2023 927th uttumuttu 🇫🇮 657 71 10ms 8 Jan 2022 927th olleicua 🇺🇸 657 71 11ms 20 Feb 2024 929th Trunksistor 🇫🇷 657 75 11ms 25 May 2022 929th celiendonze 🇨🇭 657 75 13ms 16 Jun 2023 929th qwjhvbxi 657 75 11ms 9 Feb 2024 929th wenbang24 657 75 13ms 6 Apr 2024 933rd AdrienHache 🇫🇷 656 91 411ms 31 Dec 2023 934th emgordon154 655 65 136ms 6 Sep 2024 935th olivermrose 🇺🇸 653 57 3ms 24 Aug 2021 936th boxjelly 650 65 41ms 11 Feb 2021 936th msbranicky 650 65 42ms 12 Sep 2023 938th Waffle3z 649 76 12ms 20 Jan 2021 938th hellwue 649 76 12ms 16 Nov 2023 938th yuchuehw 649 76 18ms 18 Jan 2024 938th dcc5480 649 76 10ms 11 days ago 942nd johnnythedoggie 648 106 109ms 3 Mar 2021 942nd snoozingnewt 🇨🇦 648 106 104ms 21 Nov 2025 944th rboath 645 58 86ms 8 Jan 2025 945th NickTheEASDude 🇺🇸 644 95 1ms 1 Jul 2024 946th Shanethegamer 🇺🇸 643 97 8ms 22 Dec 2023 947th Bubbler-4 642 97 65ms 13 Sep 2023 948th msbranicky 642 134 363ms 3 Oct 2023 949th nephila-nacrea 🇬🇧 641 58 3ms 3 Feb 2021 950th alomiF 641 102 124ms 4 Nov 2024 951st f-tucker 640 77 13ms 2 Feb 2024 951st undefinedRyan 640 77 12ms 19 Apr 2025 951st Emutis 🇱🇹 640 77 11ms 12 Sep 2025 954th MeWhenI 🇻🇦 640 82 10ms 21 Jul 2023 955th Maznek 639 73 10ms 30 Jun 2023 956th emgordon154 637 98 10ms 10 Dec 2024 957th sreyfe 637 119 164ms 9 Jun 2024 958th janbehrens 🇩🇪 637 135 368ms 13 Jun 2021 959th emgordon154 637 186 1,215ms 30 May 2025 960th Shanethegamer 🇺🇸 636 57 278ms 27 Jul 2023 961st DialFrost 🇸🇬 636 67 128ms 3 Aug 2024 962nd MeWhenI 🇻🇦 636 90 2,449ms 24 Oct 2024 963rd MateuszPietrzak 🇵🇱 636 112 63ms 16 Jan 2024 964th dokutan 635 94 467ms 18 Jul 2025 965th janbehrens 🇩🇪 634 136 25ms 9 Jul 2021 966th SirBogman 🇺🇸 633 84 2ms 14 Dec 2021 967th AkashTandon167 632 78 13ms 25 May 2021 967th jhpaques 🇫🇷 632 78 25ms 30 Nov 2022 969th NewDefectus 🇮🇱 630 59 6ms 25 Oct 2021 970th madex 🇩🇪 630 67 43ms 21 days ago 971st Protothor 630 74 9ms 20 Mar 2026 972nd Shanethegamer 🇺🇸 627 64 2ms 26 Jul 2023 973rd solisolu 626 85 2ms 22 days ago 974th CaedenHarper 🇨🇦 625 107 419ms 6 Oct 2025 975th twocatsinatrenchcoat 624 79 9ms 29 Mar 2022 975th SniperSmiley 🇺🇸 624 79 39ms 23 Jun 2022 975th Glinte 624 79 18ms 14 Dec 2023 975th Bmrl7 624 79 15ms 19 Mar 2024 975th acotis 624 79 12ms 7 Mar 2026 980th emgordon154 624 151 9ms 6 Oct 2024 981st edsrzf 🇳🇿 623 138 306ms 21 Dec 2024 982nd MeWhenI 🇻🇦 622 106 345ms 26 Aug 2023 983rd ovs-code 🇩🇪 621 48 176ms 2 Jan 2024 984th Yewzir 🇧🇪 621 64 5ms 16 Nov 2023 985th janbehrens 🇩🇪 621 68 42ms 18 Jan 2021 986th dokutan 621 106 11ms 24 Mar 2025 987th AkashTandon167 618 86 2ms 25 May 2021 988th MeWhenI 🇻🇦 618 101 12ms 9 May 2024 989th Shanethegamer 🇺🇸 617 85 4ms 21 Dec 2024 990th Shanethegamer 🇺🇸 617 192 1,219ms 2 Apr 2025 991st bastienvoirin 🇫🇷 616 80 14ms 4 Feb 2021 991st argusdusty 🇺🇸 616 80 21ms 25 Mar 2021 991st OppositeShark 616 80 12ms 9 Apr 2022 991st WillowWispy 616 80 10ms 16 Mar 2025 995th codename68 616 123 146ms 13 Aug 2022 996th orthoplex 🇨🇽 616 153 19ms 25 Jun 2023 997th ashtraypettingzoo 🇺🇸 612 36 32ms 23 Feb 2023 998th omurakazuaki 🇯🇵 612 69 45ms 19 Feb 2021 999th Shanethegamer 🇺🇸 611 65 6ms 2 Aug 2022 1,000th Herbert00709 🇵🇱 611 87 2ms 19 Nov 2024 First Prev 901–1,000 of 2,090 Next Last