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 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 Mandelbrot 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 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 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 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 Mandelbrot 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 451st dokutan 621 127 10 Dec 2024 452nd DialFrost 🇸🇬 621 307 22 Apr 2025 453rd BalaM314 616 104 4 Feb 2025 454th codereport 🇨🇦 615 63 2 Oct 2024 455th MarcMush 🇫🇷 615 91 8 Oct 2024 456th Schmitt-Very-Cool 614 189 3 Feb 2025 457th fourth-bit 613 105 1 Oct 2024 457th jared-hughes 613 105 3 Oct 2024 457th mattyhempstead 613 105 7 Oct 2024 460th olleicua 🇺🇸 611 78 18 Oct 2024 461st emgordon154 609 156 13 Dec 2024 462nd bac0id 608 141 10 Jan 2025 463rd davecame 607 106 1 Oct 2024 463rd starfihs 607 106 2 Oct 2024 463rd rschwa6308 🇺🇸 607 106 28 Oct 2024 463rd snydej 607 106 21 Nov 2024 467th Seanharrs 605 117 15 Nov 2024 468th Shanethegamer 🇺🇸 604 217 4 Oct 2024 469th Shanethegamer 🇺🇸 603 154 3 Oct 2024 470th alemelis 602 93 1 Oct 2024 471st commandblockguy 🇺🇸 602 107 7 Oct 2024 471st zbreit 🇺🇸 602 107 29 Oct 2024 471st StardustGogeta 602 107 30 Oct 2024 471st ZakkkkAttackkkk 🇵🇭 602 107 8 Feb 2025 475th MeWhenI 🇻🇦 600 73 2 Oct 2024 476th roguh 🇬🇹 598 117 13 Oct 2024 477th MeWhenI 🇻🇦 597 98 1 Oct 2024 478th neihousaigaai 596 108 4 Oct 2024 478th StefanHabel 🇨🇦 596 108 23 Jan 2025 480th dokutan 596 117 3 Oct 2024 481st ravnskjaer 🇩🇰 595 195 20 Dec 2024 482nd arcpolaris 590 120 28 Jan 2025 483rd edsrzf 🇳🇿 588 113 26 Oct 2024 484th bac0id 588 119 10 Jan 2025 485th luca1339 586 198 4 Nov 2024 486th DialFrost 🇸🇬 585 67 25 Jan 2025 487th CaedenHarper 🇨🇦 585 110 9 Oct 2024 487th cros107 585 110 1 Jan 2025 487th guilhem-roy 🇫🇷 585 110 27 days ago 490th dokutan 584 174 21 Feb 2025 491st JunkIce 583 98 3 Dec 2024 492nd mousetail 🇳🇱 580 111 6 Oct 2024 493rd Trip-kun 580 136 5 Oct 2024 494th MeWhenI 🇻🇦 578 111 2 Oct 2024 495th MeWhenI 🇻🇦 576 331 2 Oct 2024 496th OllieBoyne 🇬🇧 575 112 17 Oct 2024 496th WillConker 575 112 22 Oct 2024 496th maxgodfrey2004 🇨🇦 575 112 4 Jan 2025 499th Jacob385 575 202 2 Oct 2024 500th KatieLG 🇬🇧 572 99 1 Oct 2024 501st 823126 572 112 13 Nov 2024 501st dokutan 572 112 3 days ago 503rd emgordon154 568 44 1 Oct 2024 504th MeWhenI 🇻🇦 567 164 6 Oct 2024 505th KatieLG 🇬🇧 561 85 12 Jan 2025 506th jipsong 🇩🇪 560 115 12 May 2025 507th aliakseikalosha 557 127 10 Oct 2024 508th rowechenzhong 555 116 17 Oct 2024 509th MeWhenI 🇻🇦 554 290 2 Oct 2024 510th madex 🇩🇪 553 116 1 Oct 2024 511th JDiLenarda 🇫🇷 553 165 1 Oct 2024 512th edsrzf 🇳🇿 551 135 27 Feb 2025 513th dtbao20 🇻🇳 550 117 1 Oct 2024 513th Pyroan 550 117 22 Feb 2025 513th andrewjc2000 550 117 6 May 2025 516th msbranicky 550 185 20 Jan 2025 517th mousetail 🇳🇱 547 94 3 Oct 2024 518th emgordon154 546 52 3 Nov 2024 519th elgan65536 546 118 2 Oct 2024 519th logvp 546 118 6 Oct 2024 519th ahmetdemirag 🇨🇾 546 118 6 Feb 2025 522nd mousetail 🇳🇱 546 128 3 Oct 2024 523rd zakariamouhid 543 118 1 Oct 2024 524th xyangst 543 171 1 Oct 2024 525th jtaxen 541 119 21 Oct 2024 Prev 451–525 of 689 Next