Card Number Validation in Python 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 149th kistlerf 🇨🇭 469 143 16ms 19 May 2025 152nd hiichbindermax 465 144 18ms 2 Oct 2024 152nd mathisfun271 465 144 10ms 14 Oct 2024 152nd bob-th 465 144 12ms 22 Oct 2024 155th Flekay 🇩🇪 462 145 11ms 10 Jul 2025 156th croc54 459 146 11ms 15 Dec 2024 157th PyryL 🇫🇮 456 147 11ms 1 Mar 2025 158th mbittner20 453 148 10ms 13 Oct 2024 159th psaban 450 149 17ms 31 Jul 2025 160th jameswmccarty 447 150 10ms 5 Oct 2024 160th yousefalizadeh 447 150 13ms 23 Oct 2024 160th feherd 447 150 11ms 31 Oct 2024 160th TheZwierzLF 🇵🇱 447 150 11ms 17 May 2025 164th adamnielson42 🇺🇸 441 152 10ms 6 Oct 2024 164th voidgloom 441 152 10ms 22 Oct 2024 164th omero-san 441 152 10ms 22 Sep 2025 164th brochmann 🇸🇪 441 152 12ms 11 days ago 168th denisfouchard 438 153 11ms 21 Aug 2025 169th osNiko 🇧🇷 435 154 16ms 21 Aug 2025 170th FortuiteMan 🇫🇷 432 155 19ms 16 Oct 2024 170th celiendonze 🇨🇭 432 155 19ms 6 days ago 172nd Shotokhan 429 156 11ms 21 Sep 2025 173rd lhulinsky 427 157 13ms 21 Oct 2024 174th ThatAlo 424 158 12ms 9 Dec 2024 175th CheeseCake628 🇳🇴 419 160 98ms 5 Nov 2024 176th pres-abhisheksinha 416 161 11ms 8 Oct 2024 177th ibixina 414 162 11ms 13 Oct 2024 177th TheAtrossian 414 162 11ms 5 Jan 2025 179th Vaekor 406 165 12ms 15 Dec 2024 180th JesseNoEyes 🇺🇸 396 169 13ms 1 Oct 2024 181st zyc-2024 🇨🇳 394 170 10ms 5 Oct 2024 182nd ComputerKWasTaken 🇺🇸 392 171 11ms 14 Oct 2024 183rd navier-1 387 173 10ms 22 Sep 2025 184th clayboll99 381 176 14ms 10 Jul 2025 185th Upload-and-View 🇺🇦 379 177 19ms 9 Aug 2025 186th OSYCh314 🇦🇺 376 178 10ms 2 Nov 2024 187th calum12345 372 180 11ms 26 Mar 2025 188th zt14427 368 182 11ms 27 Dec 2024 189th IoLimmer 366 183 16ms 10 Oct 2024 190th aksyristos 364 184 17ms 15 Nov 2024 191st estomagordo 🇳🇱 360 186 10ms 15 Jul 2025 192nd gautambp 307 218 11ms 24 Jun 2025 193rd Zhenyu-Bo 294 228 11ms 30 Jul 2025 194th EthanJantz 291 230 11ms 5 Sep 2025 195th RobertBurs 283 237 10ms 22 Sep 2025 196th TJK-S 276 243 11ms 14 days ago 197th te-chnical 260 258 202ms 4 May 2025 198th arebbsba 226 296 11ms 9 Jan 2025 199th AidanWalter 124 540 11ms 1 Jan 2025 200th bignamehyp 100 667 12ms 14 Nov 2024 First Prev 151–200 of 200