Card Number Validation 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 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 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Knight 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 151st xsot 🇸🇬 837 57 6 May 2025 152nd jatloe 837 77 1 Oct 2024 153rd JayXon 🇺🇸 837 109 5 Oct 2024 154th Shanethegamer 🇺🇸 836 67 3 Oct 2024 154th antimon2 🇯🇵 836 67 9 Oct 2024 156th GrayJoKing 🇦🇺 835 47 1 Oct 2024 157th IanUtley 835 113 2 Oct 2024 158th sean-niemann 🇺🇸 835 114 2 Oct 2024 159th Shanethegamer 🇺🇸 834 77 1 Oct 2024 159th edsrzf 🇳🇿 834 77 10 May 2025 159th biocommando 🇫🇮 834 77 13 Jun 2025 162nd stefangimmillaro 833 68 2 Oct 2024 163rd nwellnhof 🇩🇪 833 84 2 Oct 2024 163rd ovs-code 🇩🇪 833 84 2 Nov 2024 163rd inventshah 833 84 31 Mar 2025 166th sean-niemann 🇺🇸 832 81 20 Dec 2024 167th error256 832 106 8 Oct 2024 168th emplv 🇱🇻 832 142 2 Oct 2024 168th sean-niemann 🇺🇸 832 142 2 Oct 2024 170th emgordon154 830 69 18 Nov 2024 171st stefangimmillaro 830 80 12 Nov 2024 172nd stefangimmillaro 830 112 4 Oct 2024 173rd MeWhenI 🇻🇦 826 130 3 Oct 2024 174th MeWhenI 🇻🇦 826 143 2 Oct 2024 175th m-tkach 🇺🇦 825 144 8 Oct 2024 176th ovs-code 🇩🇪 825 200 19 Apr 2025 177th retrohun 824 71 10 Jan 2025 178th MeWhenI 🇻🇦 824 85 5 Oct 2024 179th m-tkach 🇺🇦 823 58 8 Oct 2024 180th Kacarott 🇦🇺 823 73 1 Oct 2024 180th chunes3 🇺🇸 823 73 2 Oct 2024 182nd ovs-code 🇩🇪 823 78 2 Oct 2024 182nd dcgjb 823 78 6 May 2025 184th saito-ta 🇯🇵 823 85 1 Oct 2024 185th edsrzf 🇳🇿 821 118 13 days ago 186th MeWhenI 🇻🇦 821 142 2 Oct 2024 187th ovs-code 🇩🇪 820 65 30 Oct 2024 188th emplv 🇱🇻 820 145 24 Oct 2024 189th sean-niemann 🇺🇸 818 48 10 hours ago 190th MeWhenI 🇻🇦 817 104 2 Oct 2024 191st edsrzf 🇳🇿 817 108 14 days ago 192nd rucin93 🇵🇱 816 71 17 Dec 2024 193rd stefangimmillaro 815 143 3 Oct 2024 193rd sean-niemann 🇺🇸 815 143 24 Oct 2024 195th lifthrasiir 🇰🇷 815 197 19 Dec 2024 196th m-tkach 🇺🇦 814 138 3 Oct 2024 197th MeWhenI 🇻🇦 813 85 4 Oct 2024 198th stefangimmillaro 813 99 3 Oct 2024 199th sisyphus-ppcg 🇦🇺 812 83 2 Oct 2024 200th primo-ppcg 🇹🇭 811 235 23 Jun 2025 201st Shanethegamer 🇺🇸 810 70 9 Apr 2025 202nd error256 810 144 2 Oct 2024 203rd anter69 🇭🇺 809 59 11 Oct 2024 203rd Natanaelel 🇸🇪 809 59 7 Feb 2025 205th ovs-code 🇩🇪 808 106 1 Oct 2024 205th inventshah 808 106 1 Oct 2024 207th stefangimmillaro 807 126 3 Oct 2024 208th GolfingSuccess 🇬🇷 806 31 5 Oct 2024 209th lifthrasiir 🇰🇷 806 71 2 Dec 2024 210th kg583 🇺🇸 806 124 20 Oct 2024 210th AlephSquirrel 806 124 21 Oct 2024 212th emgordon154 805 72 2 Oct 2024 213th emgordon154 805 205 7 Mar 2025 214th Apataras 804 145 25 Jun 2025 214th edsrzf 🇳🇿 804 145 14 days ago 216th trinityy-7 803 80 16 days ago 217th DialFrost 🇸🇬 802 106 23 Mar 2025 218th ovs-code 🇩🇪 801 75 1 Oct 2024 219th MeWhenI 🇻🇦 801 127 5 Oct 2024 220th stefangimmillaro 801 134 3 Oct 2024 221st xsot 🇸🇬 800 125 20 Oct 2024 222nd canissimia 🇦🇶 798 130 4 Oct 2024 223rd edsrzf 🇳🇿 798 150 27 Feb 2025 224th Shanethegamer 🇺🇸 797 138 3 Oct 2024 225th albanian-laundromat 796 81 16 Jun 2025 Prev 151–225 of 731 Next