Catalan Numbers in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 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 Erlang 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 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 Erlang 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 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 Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 751st Betuaredead 798 147 266ms 21 Jan 2023 752nd error256 797 51 421ms 15 Jan 2025 753rd dokutan 797 136 349ms 6 days ago 754th Matgc04 796 91 361ms 17 Nov 2023 755th MeWhenI 🇻🇦 795 85 3,040ms 27 Oct 2024 756th albanian-laundromat 794 44 698ms 25 Sep 2025 757th msbranicky 793 54 10ms 23 Aug 2023 757th Code-Coder-coder 793 54 10ms 12 Oct 2025 759th Ripick 793 148 276ms 16 Feb 2023 760th MeWhenI 🇻🇦 789 45 29ms 16 Apr 2023 761st Shanethegamer 🇺🇸 787 92 375ms 29 Jan 2022 761st dokutan 787 92 411ms 24 Mar 2025 763rd Yewzir 🇧🇪 786 39 45ms 7 May 2024 763rd codereport 🇨🇦 786 39 35ms 21 Apr 2025 763rd Chara-0x 786 39 34ms 18 Sep 2025 766th stefangimmillaro 786 86 2,979ms 4 Nov 2024 767th didion0 🇺🇸 785 50 9ms 16 Feb 2022 767th Natanaelel 🇸🇪 785 50 9ms 3 Jan 2024 767th weliveinhell 🇭🇹 785 50 9ms 11 Jan 2024 767th inverseLorentz 🇦🇺 785 50 9ms 1 Apr 2024 771st annaproxy 785 65 5ms 3 Oct 2022 772nd Shanethegamer 🇺🇸 784 65 6ms 19 Dec 2023 772nd Steffan153 🇫🇮 784 65 7ms 20 Dec 2023 774th KatieLG 🇬🇧 783 47 407ms 15 Jan 2024 774th Yewzir 🇧🇪 783 47 383ms 7 May 2024 776th KasperKivimaeki 🇫🇮 782 150 263ms 29 Sep 2025 777th stellartux 781 47 299ms 1 Jan 2024 778th stefangimmillaro 781 159 27ms 4 May 2023 779th jared-hughes 780 139 342ms 24 Sep 2025 780th 2011-Chan-Ethan 779 55 14ms 14 Jul 2023 780th cuboids 779 55 11ms 10 Jul 2024 780th jatloe 779 55 13ms 27 Sep 2024 780th Emutis 🇱🇹 779 55 12ms 27 Oct 2024 784th hamhub7 779 93 419ms 3 Aug 2022 784th MeWhenI 🇻🇦 779 93 364ms 15 Oct 2022 786th MeWhenI 🇻🇦 778 23 39ms 25 Jul 2022 786th AlephSquirrel 778 23 44ms 31 Dec 2022 788th DialFrost 🇸🇬 777 68 5ms 7 Dec 2024 788th pardouin 🇫🇷 777 68 8ms 20 Mar 2025 790th KasperKivimaeki 🇫🇮 777 147 5ms 4 Jun 2025 791st kimbo 🇺🇸 777 151 267ms 25 Dec 2022 792nd rak1507 🇬🇧 776 52 30ms 29 Jan 2022 793rd Shanethegamer 🇺🇸 776 59 143ms 29 Jan 2022 793rd Z-snails 776 59 145ms 28 Feb 2023 795th inventshah 773 22 2ms 8 May 2022 796th KatieLG 🇬🇧 773 64 956ms 16 Oct 2022 797th Natanaelel 🇸🇪 772 46 32ms 3 Jan 2024 798th Shanethegamer 🇺🇸 771 58 15ms 29 Jan 2022 799th ovs-code 🇩🇪 771 82 107ms 14 Oct 2022 800th jared-hughes 771 307 22ms 8 Jul 2024 801st codingisgreatbutiamnot 769 51 9ms 25 Jul 2024 802nd Yax42 🇫🇷 769 141 331ms 4 Oct 2025 803rd dokutan 767 153 274ms 24 Mar 2025 804th albanian-laundromat 766 48 404ms 7 Oct 2025 805th ovs-code 🇩🇪 766 161 132ms 21 Apr 2025 806th MeWhenI 🇻🇦 765 48 376ms 15 Feb 2023 807th petroselo 765 56 14ms 12 Apr 2022 807th SB-945 765 56 12ms 10 Jul 2023 807th JunkIce 765 56 13ms 24 Nov 2024 807th kevinnaviapaiva 765 56 13ms 19 Dec 2024 807th wobblybits 765 56 10ms 19 Aug 2025 812th brimstonetrader 763 60 126ms 10 Jan 2024 812th YAJUE114514 763 60 145ms 23 Jul 2025 814th Yewzir 🇧🇪 763 102 154ms 7 May 2024 815th LeeCamp 762 27 37ms 10 Feb 2022 816th snoozingnewt 🇺🇸 762 154 282ms 15 days ago 817th nipzu 761 162 159ms 2 Apr 2024 818th pardouin 🇫🇷 760 51 81ms 13 Sep 2024 819th SirFireball3521 754 52 9ms 3 Nov 2022 820th PrathamMehta08 752 57 13ms 6 Dec 2023 820th Terobero 752 57 13ms 21 Aug 2024 820th AtengChen 752 57 11ms 7 Sep 2024 820th Mick-Travis 752 57 13ms 8 Dec 2024 824th pardouin 🇫🇷 752 84 106ms 8 Mar 2025 825th MeWhenI 🇻🇦 752 156 271ms 10 Feb 2023 First Prev 751–825 of 1,927 Next Last