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 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 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 76th OllieBoyne 🇬🇧 598 112 17 Oct 2024 76th WillConker 598 112 22 Oct 2024 76th maxgodfrey2004 🇨🇦 598 112 4 Jan 2025 79th jipsong 🇩🇪 583 115 12 May 2025 80th rowechenzhong 578 116 17 Oct 2024 81st dtbao20 🇻🇳 573 117 1 Oct 2024 81st Pyroan 573 117 22 Feb 2025 81st andrewjc2000 573 117 6 May 2025 84th elgan65536 568 118 2 Oct 2024 84th logvp 568 118 6 Oct 2024 84th ahmetdemirag 🇨🇾 568 118 6 Feb 2025 87th jtaxen 563 119 21 Oct 2024 87th psbpsbp 563 119 19 Dec 2024 87th klixel 🇨🇦 563 119 9 Apr 2025 90th TaserTheFox 🇺🇸 558 120 8 Oct 2024 90th yokasuretsu 558 120 26 Jan 2025 90th Troon 558 120 17 Feb 2025 93rd chartung17 549 122 24 Mar 2025 94th msbranicky 545 123 3 Oct 2024 94th bobbysq 545 123 5 Oct 2024 94th wuzekai518 545 123 8 Oct 2024 94th vhoulbreque 🇫🇷 545 123 4 Feb 2025 98th NotEvenIndian 540 124 22 Oct 2024 98th ridingqwerty 🇺🇸 540 124 16 Jan 2025 100th bnic24 536 125 3 Oct 2024 100th adoxography 536 125 22 Oct 2024 102nd CatsAreFluffy 528 127 30 Oct 2024 102nd WillowWispy 528 127 25 May 2025 104th lelbal 523 128 2 Oct 2024 104th Lv0Sys 🇵🇱 523 128 16 days ago 106th madex 🇩🇪 519 129 2 Oct 2024 106th RedzGoose 🇦🇺 519 129 15 Oct 2024 106th calebaitken 519 129 11 Apr 2025 109th Europe2048 515 130 2 Oct 2024 109th nstearns96 🇬🇧 515 130 2 Oct 2024 109th rollershutter 515 130 10 Jan 2025 112th Stockoh 🇫🇷 511 131 2 Oct 2024 112th inverseLorentz 🇦🇺 511 131 7 Oct 2024 112th sciencejiho 511 131 11 Feb 2025 112th Jaydosu 511 131 11 Apr 2025 116th Mabeloid 🇳🇴 504 133 2 Oct 2024 116th Emutis 🇱🇹 504 133 4 Feb 2025 118th sciencedjinn 493 136 8 Nov 2024 118th ihatethefrench 493 136 4 Jan 2025 120th kurkale6ka 489 137 16 Oct 2024 120th 4ndyJ 🇬🇧 489 137 14 Nov 2024 122nd BREMAUCY 🇫🇷 486 138 2 Oct 2024 123rd scpchicken 🇵🇼 482 139 6 Oct 2024 124th NanduBC 479 140 1 Oct 2024 124th Mikey-Beep 🇬🇧 479 140 7 Oct 2024 124th jmerle 🇳🇱 479 140 10 Jan 2025 124th RobertHoeh 479 140 3 Mar 2025 124th smilesformiles3 479 140 19 days ago 124th artem-aramma 479 140 13 days ago 130th FranklinJiaChen 475 141 2 Oct 2024 131st brimstonetrader 472 142 17 Oct 2024 131st codewrite 🇬🇧 472 142 5 May 2025 131st RobGLambert 472 142 24 days ago 134th GeneralFabian 469 143 9 Dec 2024 134th CutSandstone 469 143 30 Jan 2025 134th kistlerf 🇨🇭 469 143 19 May 2025 137th hiichbindermax 465 144 2 Oct 2024 137th mathisfun271 465 144 14 Oct 2024 137th bob-th 465 144 22 Oct 2024 140th croc54 459 146 15 Dec 2024 141st PyryL 🇫🇮 456 147 1 Mar 2025 142nd mbittner20 453 148 13 Oct 2024 143rd jameswmccarty 447 150 5 Oct 2024 143rd yousefalizadeh 447 150 23 Oct 2024 143rd feherd 447 150 31 Oct 2024 143rd RaBa21 447 150 4 May 2025 143rd TheZwierzLF 🇵🇱 447 150 17 May 2025 148th adamnielson42 🇺🇸 441 152 6 Oct 2024 148th voidgloom 441 152 22 Oct 2024 150th dirckvdende 438 153 40 hours ago Prev 76–150 of 172 Next