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 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 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 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 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 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 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 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 451st rucin93 🇵🇱 645 144 28 Oct 2024 452nd FlorianCassayre 🇫🇷 644 100 1 Oct 2024 452nd bzijlema 🇳🇱 644 100 10 Oct 2024 452nd bricknellj 644 100 4 Mar 2025 455th koipondx86 641 123 8 Nov 2024 456th stefangimmillaro 639 73 1 Oct 2024 457th CaedenHarper 🇨🇦 639 185 3 Jan 2025 458th btjones0 638 101 2 Dec 2024 459th yoshykai 637 183 12 Apr 2025 460th Jonatan6 🇩🇰 636 110 24 Oct 2024 461st elgan65536 636 146 2 Oct 2024 462nd annaproxy 632 102 1 Oct 2024 462nd xyangst 632 102 1 Oct 2024 464th Shanethegamer 🇺🇸 631 74 16 Oct 2024 465th dokutan 628 91 19 Oct 2024 466th msbranicky 628 188 7 Jan 2025 467th AlephSquirrel 625 40 1 Oct 2024 468th tomh1012 621 114 17 Oct 2024 469th dokutan 621 127 10 Dec 2024 470th DialFrost 🇸🇬 621 307 22 Apr 2025 471st not-a-pokemon 619 113 10 days ago 472nd codereport 🇨🇦 617 63 2 Oct 2024 473rd BalaM314 617 104 4 Feb 2025 473rd acollett89 617 104 18 days ago 475th Schmitt-Very-Cool 617 189 3 Feb 2025 476th MarcMush 🇫🇷 615 91 8 Oct 2024 477th SirBogman 🇺🇸 615 93 10 days ago 478th Ripick 615 135 23 Mar 2025 479th fourth-bit 614 105 1 Oct 2024 479th jared-hughes 614 105 3 Oct 2024 479th mattyhempstead 614 105 7 Oct 2024 482nd jupj 🇫🇮 614 114 12 days ago 483rd olleicua 🇺🇸 611 78 18 Oct 2024 484th davecame 608 106 1 Oct 2024 484th starfihs 608 106 2 Oct 2024 484th rschwa6308 🇺🇸 608 106 28 Oct 2024 484th snydej 608 106 21 Nov 2024 484th andrewjc2000 608 106 15 days ago 489th bac0id 608 141 10 Jan 2025 490th daveberlin 606 106 27 Jun 2025 491st Seanharrs 605 117 15 Nov 2024 492nd Shanethegamer 🇺🇸 604 217 4 Oct 2024 493rd Shanethegamer 🇺🇸 603 154 3 Oct 2024 494th MeWhenI 🇻🇦 602 73 2 Oct 2024 495th alemelis 602 93 1 Oct 2024 496th commandblockguy 🇺🇸 602 107 7 Oct 2024 496th zbreit 🇺🇸 602 107 29 Oct 2024 496th StardustGogeta 602 107 30 Oct 2024 496th ZakkkkAttackkkk 🇵🇭 602 107 8 Feb 2025 500th kaascevich 601 134 23 days ago 501st albanian-laundromat 599 159 20 days ago 502nd dokutan 598 117 3 Oct 2024 502nd roguh 🇬🇹 598 117 13 Oct 2024 504th ravnskjaer 🇩🇰 598 195 20 Dec 2024 505th MeWhenI 🇻🇦 597 98 1 Oct 2024 506th neihousaigaai 597 108 4 Oct 2024 506th StefanHabel 🇨🇦 597 108 23 Jan 2025 506th mossiegoat 597 108 16 days ago 506th CaedenHarper 🇨🇦 597 108 10 days ago 510th SirBogman 🇺🇸 591 64 21 days ago 511th arcpolaris 590 120 28 Jan 2025 512th luca1339 589 198 4 Nov 2024 513th bac0id 588 119 10 Jan 2025 514th cros107 586 110 1 Jan 2025 514th guilhem-roy 🇫🇷 586 110 29 May 2025 516th DialFrost 🇸🇬 585 67 25 Jan 2025 517th JunkIce 584 98 3 Dec 2024 518th dokutan 584 174 21 Feb 2025 519th mousetail 🇳🇱 581 111 6 Oct 2024 520th Trip-kun 580 136 5 Oct 2024 521st MeWhenI 🇻🇦 578 111 2 Oct 2024 522nd Jacob385 577 202 2 Oct 2024 523rd MeWhenI 🇻🇦 576 331 2 Oct 2024 524th OllieBoyne 🇬🇧 575 112 17 Oct 2024 524th WillConker 575 112 22 Oct 2024 Prev 451–525 of 727 Next