Catalan Numbers 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 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 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 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 ><> 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 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 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 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 880th dokutan 750 68 3ms 26 Dec 2025 882nd dokutan 750 83 482ms 22 Sep 2025 883rd MeWhenI 🇻🇦 749 219 110ms 16 Aug 2024 884th dokutan 748 41 33ms 18 Mar 2025 885th snoozingnewt 🇨🇦 747 47 946ms 21 Nov 2025 886th Alex-x90 🇺🇸 747 147 498ms 6 May 2024 887th ovs-code 🇩🇪 746 161 130ms 21 Apr 2025 888th MeWhenI 🇻🇦 745 60 11ms 29 Jan 2022 889th Shanethegamer 🇺🇸 744 85 109ms 14 Oct 2022 889th edsrzf 🇳🇿 744 85 121ms 30 Apr 2025 891st snoozingnewt 🇨🇦 741 48 27ms 3 Dec 2025 892nd nipzu 741 162 116ms 2 Apr 2024 893rd jbjd 739 58 9ms 25 Feb 2024 894th dokutan 739 67 1,332ms 18 Mar 2025 895th Steffan153 🇫🇮 738 29 105ms 14 Nov 2022 895th ovs-code 🇩🇪 738 29 126ms 29 Dec 2023 897th CheeseCake628 🇳🇴 737 50 498ms 18 Oct 2025 898th dpinchbe 735 28 33ms 6 Sep 2024 899th edsrzf 🇳🇿 732 289 42ms 9 days ago 900th MeWhenI 🇻🇦 731 53 65ms 5 Apr 2025 901st ovs-code 🇩🇪 729 70 6ms 11 Dec 2023 901st DialFrost 🇸🇬 729 70 6ms 1 Jan 2026 903rd CaedenHarper 🇨🇦 729 161 300ms 20 Nov 2025 904th dvargas46 🇺🇸 728 158 829ms 5 Feb 2023 905th iczelia 🇩🇪 727 54 11ms 14 Oct 2025 906th Shanethegamer 🇺🇸 725 73 5ms 4 Oct 2024 907th snoozingnewt 🇨🇦 725 164 92ms 12 days ago 908th Stockoh 🇫🇷 723 51 404ms 23 Jun 2024 909th h3ra993huskp 🇯🇵 723 150 429ms 30 Nov 2025 910th davbass 🇮🇹 720 51 248ms 22 Aug 2023 911th emgordon154 720 163 280ms 18 Jan 2025 912th primo-ppcg 🇹🇭 719 160 73ms 4 Feb 2023 913th SniperSmiley 🇺🇸 716 25 40ms 4 Sep 2022 913th CornerMercury 🇬🇧 716 25 41ms 24 Aug 2023 915th Irratix 🇳🇱 716 64 125ms 29 Jan 2022 916th msbranicky 715 164 276ms 31 Aug 2023 917th snoozingnewt 🇨🇦 714 43 35ms 26 Sep 2025 918th LeeCamp 714 60 10ms 9 Feb 2022 918th guilhem-roy 🇫🇷 714 60 10ms 22 Feb 2022 918th Eilonlif 🇮🇱 714 60 10ms 27 Aug 2022 918th LogicalJoe 714 60 10ms 18 Sep 2022 918th 5quiwyrm 714 60 10ms 22 Oct 2022 918th TaserTheFox 🇺🇸 714 60 9ms 9 Jan 2023 918th ljweel 714 60 10ms 13 Feb 2023 918th shellbertt 🇨🇦 714 60 10ms 27 Apr 2023 918th ssbhatt4321 714 60 10ms 11 Jun 2023 918th PeterTillema 🇳🇱 714 60 10ms 10 Oct 2023 918th kurkale6ka 714 60 9ms 21 Dec 2023 918th sultan 714 60 9ms 3 Mar 2024 918th alemelis 714 60 10ms 13 Oct 2024 918th csharpython 714 60 10ms 5 Aug 2025 918th BREMAUCY 🇫🇷 714 60 10ms 11 Aug 2025 918th denkyuu1 714 60 11ms 5 days ago 934th dokutan 714 109 164ms 18 Mar 2025 935th MeWhenI 🇻🇦 713 57 82ms 1 Jun 2022 936th qwertyuiop3 🇷🇺 713 154 100ms 26 May 2025 937th Steffan153 🇫🇮 712 297 193ms 30 Jun 2024 938th typeswitch-dev 🇵🇹 708 217 4ms 24 Jul 2023 939th rokasveitas 🇱🇹 706 52 246ms 16 May 2022 939th shellbertt 🇨🇦 706 52 216ms 19 Mar 2023 941st MeWhenI 🇻🇦 706 75 5ms 14 Feb 2025 942nd aDwarfNamedUrist 705 65 124ms 9 Oct 2023 943rd knutae 🇳🇴 703 61 10ms 3 Feb 2022 943rd cros107 🇦🇺 703 61 10ms 2 Nov 2022 943rd Baxi-codes 703 61 10ms 24 Dec 2022 943rd thatbirdguythatuknownot 703 61 9ms 14 Jan 2023 943rd mathb0y512 703 61 9ms 20 Apr 2023 943rd Mikey-Beep 🇬🇧 703 61 10ms 31 Aug 2023 943rd drochom 703 61 10ms 17 Jun 2024 943rd tphLatte 703 61 9ms 3 Jul 2024 943rd NanduBC 703 61 10ms 6 Sep 2024 943rd Pyroan 703 61 9ms 13 May 2025 943rd Tristanchaang 703 61 10ms 15 Nov 2025 954th voytxt 🇨🇿 701 134 1,372ms 2 Mar 2025 955th DialFrost 🇸🇬 700 155 356ms 14 Nov 2025 956th MeWhenI 🇻🇦 699 73 7ms 9 May 2024 957th MeWhenI 🇻🇦 698 158 39ms 29 Apr 2025 958th sisyphus-ppcg 🇦🇺 698 164 3ms 29 Jan 2022 959th nullie 698 172 137ms 30 Dec 2024 960th snoozingnewt 🇨🇦 698 235 123ms 12 days ago First Prev 881–960 of 2,017 Next Last