Card Number Validation 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 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 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 Calendar 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 Multitap Input NFA Simulator 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 ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 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 Calendar 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 Multitap Input NFA Simulator 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 151st primo-ppcg 🇹🇭 846 128 43ms 27 Apr 2025 152nd duckyluuk 🇳🇱 845 68 389ms 4 Oct 2024 153rd KasperKivimaeki 🇫🇮 845 141 266ms 9 Oct 2025 154th error256 844 94 2ms 7 Oct 2024 155th IanUtley 844 113 18ms 2 Oct 2024 156th CLOStrophobic 🇮🇹 844 119 6ms 24 Feb 2025 157th lynn 843 131 138ms 8 Jan 2025 158th m-tkach 🇺🇦 842 144 79ms 8 Oct 2024 159th sean-niemann 🇺🇸 840 121 3ms 30 Nov 2024 160th jatloe 839 77 10ms 1 Oct 2024 161st emplv 🇱🇻 839 142 264ms 2 Oct 2024 161st sean-niemann 🇺🇸 839 142 264ms 2 Oct 2024 163rd xsot 🇸🇬 838 57 40ms 6 May 2025 164th Shanethegamer 🇺🇸 838 67 259ms 3 Oct 2024 164th antimon2 🇯🇵 838 67 443ms 9 Oct 2024 166th xsot 🇸🇬 837 82 2ms 6 May 2025 167th JayXon 🇺🇸 837 109 1,288ms 5 Oct 2024 168th stefangimmillaro 836 68 1,045ms 2 Oct 2024 169th Shanethegamer 🇺🇸 836 77 10ms 1 Oct 2024 169th edsrzf 🇳🇿 836 77 10ms 10 May 2025 169th biocommando 🇫🇮 836 77 10ms 13 Jun 2025 172nd emplv 🇱🇻 836 145 25ms 24 Oct 2024 173rd GrayJoKing 🇦🇺 835 47 5ms 1 Oct 2024 174th KasperKivimaeki 🇫🇮 835 103 358ms 19 hours ago 175th sean-niemann 🇺🇸 835 114 42ms 2 Oct 2024 176th sean-niemann 🇺🇸 834 81 10ms 20 Dec 2024 177th emgordon154 833 69 364ms 18 Nov 2024 178th edsrzf 🇳🇿 833 108 77ms 26 Jul 2025 179th stefangimmillaro 833 112 144ms 4 Oct 2024 180th MeWhenI 🇻🇦 833 130 44ms 3 Oct 2024 181st MeWhenI 🇻🇦 833 143 263ms 2 Oct 2024 182nd ovs-code 🇩🇪 833 200 392ms 19 Apr 2025 183rd edsrzf 🇳🇿 832 96 97ms 10 days ago 184th JayXon 🇺🇸 832 155 1,692ms 3 Oct 2024 185th stefangimmillaro 830 80 3,358ms 12 Nov 2024 186th qpwoeirut 828 78 10ms 1 Oct 2025 187th m-tkach 🇺🇦 827 138 26ms 3 Oct 2024 188th dcgjb 825 78 9ms 6 May 2025 189th stefangimmillaro 825 99 116ms 3 Oct 2024 190th retrohun 824 71 9ms 10 Jan 2025 191st m-tkach 🇺🇦 823 58 34ms 8 Oct 2024 192nd Kacarott 🇦🇺 823 73 986ms 1 Oct 2024 192nd chunes3 🇺🇸 823 73 1,046ms 2 Oct 2024 194th ovs-code 🇩🇪 823 78 111ms 2 Oct 2024 195th primo-ppcg 🇹🇭 822 232 518ms 13 Aug 2025 196th albanian-laundromat 821 70 452ms 3 Nov 2025 197th edsrzf 🇳🇿 821 118 3ms 27 Jul 2025 198th ovs-code 🇩🇪 820 65 5ms 30 Oct 2024 199th kg583 🇺🇸 820 142 41ms 14 Feb 2025 200th sean-niemann 🇺🇸 818 48 5ms 9 Aug 2025 201st MeWhenI 🇻🇦 818 114 494ms 7 Nov 2025 202nd MeWhenI 🇻🇦 818 183 15ms 2 Oct 2024 203rd nwellnhof 🇩🇪 817 84 2ms 2 Oct 2024 203rd ovs-code 🇩🇪 817 84 1ms 2 Nov 2024 203rd inventshah 817 84 2ms 31 Mar 2025 206th MeWhenI 🇻🇦 817 92 10ms 24 Dec 2024 207th MeWhenI 🇻🇦 817 104 18ms 2 Oct 2024 208th canissimia 🇦🇶 817 130 3ms 4 Oct 2024 209th rucin93 🇵🇱 816 71 126ms 17 Dec 2024 210th lifthrasiir 🇰🇷 815 197 10ms 19 Dec 2024 211th sisyphus-ppcg 🇦🇺 814 83 9ms 2 Oct 2024 212th MeWhenI 🇻🇦 814 85 2ms 5 Oct 2024 213th MeWhenI 🇻🇦 813 85 94ms 4 Oct 2024 214th emgordon154 813 205 499ms 7 Mar 2025 215th Shanethegamer 🇺🇸 812 70 986ms 9 Apr 2025 216th ovs-code 🇩🇪 812 106 380ms 1 Oct 2024 216th inventshah 812 106 376ms 1 Oct 2024 218th sean-niemann 🇺🇸 811 115 480ms 24 Sep 2025 218th stefangimmillaro 811 115 463ms 6 Oct 2025 220th lifthrasiir 🇰🇷 810 71 370ms 2 Dec 2024 221st kg583 🇺🇸 810 124 7ms 20 Oct 2024 221st AlephSquirrel 810 124 7ms 21 Oct 2024 223rd anter69 🇭🇺 809 59 55ms 11 Oct 2024 223rd Natanaelel 🇸🇪 809 59 34ms 7 Feb 2025 225th stefangimmillaro 808 134 47ms 3 Oct 2024 First Prev 151–225 of 839 Next Last