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 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 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 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 73rd ZakkkkAttackkkk 🇵🇭 626 107 8 Feb 2025 77th neihousaigaai 620 108 4 Oct 2024 77th StefanHabel 🇨🇦 620 108 23 Jan 2025 77th CaedenHarper 🇨🇦 620 108 22 Jul 2025 77th InigoK 🇺🇸 620 108 22 Aug 2025 81st cros107 🇦🇺 609 110 1 Jan 2025 81st guilhem-roy 🇫🇷 609 110 29 May 2025 83rd mousetail 🇳🇱 604 111 6 Oct 2024 84th OllieBoyne 🇬🇧 598 112 17 Oct 2024 84th WillConker 598 112 22 Oct 2024 84th maxgodfrey2004 🇨🇦 598 112 4 Jan 2025 87th jipsong 🇩🇪 583 115 12 May 2025 88th rowechenzhong 578 116 17 Oct 2024 89th dtbao20 🇻🇳 573 117 1 Oct 2024 89th Pyroan 573 117 22 Feb 2025 89th vgamula 🇺🇦 573 117 5 Aug 2025 92nd elgan65536 568 118 2 Oct 2024 92nd logvp 568 118 6 Oct 2024 92nd ahmetdemirag 🇨🇾 568 118 6 Feb 2025 92nd dirckvdende 568 118 10 Jul 2025 96th jtaxen 563 119 21 Oct 2024 96th psbpsbp 563 119 19 Dec 2024 96th klixel 🇨🇦 563 119 9 Apr 2025 99th TaserTheFox 🇺🇸 558 120 8 Oct 2024 99th yokasuretsu 558 120 26 Jan 2025 99th Troon 558 120 17 Feb 2025 102nd BREMAUCY 🇫🇷 554 121 18 Jul 2025 103rd chartung17 549 122 24 Mar 2025 104th msbranicky 545 123 3 Oct 2024 104th bobbysq 545 123 5 Oct 2024 104th wuzekai518 545 123 8 Oct 2024 104th vhoulbreque 🇫🇷 545 123 4 Feb 2025 104th blaztoma 🇱🇹 545 123 13 days ago 109th NotEvenIndian 540 124 22 Oct 2024 109th ridingqwerty 🇺🇸 540 124 16 Jan 2025 111th bnic24 536 125 3 Oct 2024 111th adoxography 536 125 22 Oct 2024 113th CatsAreFluffy 528 127 30 Oct 2024 113th WillowWispy 528 127 25 May 2025 115th lelbal 523 128 2 Oct 2024 115th Lv0Sys 🇵🇱 523 128 15 Jun 2025 117th madex 🇩🇪 519 129 2 Oct 2024 117th RedzGoose 🇦🇺 519 129 15 Oct 2024 117th calebaitken 519 129 11 Apr 2025 120th Europe2048 515 130 2 Oct 2024 120th nstearns96 🇬🇧 515 130 2 Oct 2024 120th rollershutter 515 130 10 Jan 2025 120th Stockoh 🇫🇷 515 130 4 Jul 2025 124th inverseLorentz 🇦🇺 511 131 7 Oct 2024 124th sciencejiho 511 131 11 Feb 2025 124th Jaydosu 511 131 11 Apr 2025 127th Mabeloid 🇳🇴 504 133 2 Oct 2024 127th Emutis 🇱🇹 504 133 4 Feb 2025 129th sciencedjinn 493 136 8 Nov 2024 129th ihatethefrench 493 136 4 Jan 2025 131st kurkale6ka 489 137 16 Oct 2024 131st 4ndyJ 🇬🇧 489 137 14 Nov 2024 131st Mikey-Beep 🇬🇧 489 137 6 Aug 2025 131st wobblybits 489 137 17 Aug 2025 135th scpchicken 🇵🇼 482 139 6 Oct 2024 136th NanduBC 479 140 1 Oct 2024 136th jmerle 🇳🇱 479 140 10 Jan 2025 136th RobertHoeh 479 140 3 Mar 2025 136th smilesformiles3 479 140 12 Jun 2025 136th artem-aramma 479 140 18 Jun 2025 141st FranklinJiaChen 475 141 2 Oct 2024 142nd brimstonetrader 472 142 17 Oct 2024 142nd codewrite 🇬🇧 472 142 5 May 2025 142nd RobGLambert 472 142 8 Jun 2025 145th GeneralFabian 469 143 9 Dec 2024 145th CutSandstone 469 143 30 Jan 2025 145th kistlerf 🇨🇭 469 143 19 May 2025 148th hiichbindermax 465 144 2 Oct 2024 148th mathisfun271 465 144 14 Oct 2024 148th bob-th 465 144 22 Oct 2024 Prev 76–150 of 189 Next