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 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 Topological Sort 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 Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 451st stefangimmillaro 639 73 1 Oct 2024 452nd CaedenHarper 🇨🇦 639 185 3 Jan 2025 453rd btjones0 638 101 2 Dec 2024 454th elgan65536 636 146 2 Oct 2024 455th yoshykai 636 183 12 Apr 2025 456th Jonatan6 🇩🇰 635 110 24 Oct 2024 457th annaproxy 632 102 1 Oct 2024 457th xyangst 632 102 1 Oct 2024 459th Shanethegamer 🇺🇸 631 74 16 Oct 2024 460th dokutan 628 91 19 Oct 2024 461st msbranicky 628 188 7 Jan 2025 462nd AlephSquirrel 625 40 1 Oct 2024 463rd tomh1012 621 114 17 Oct 2024 464th dokutan 621 127 10 Dec 2024 465th DialFrost 🇸🇬 621 307 22 Apr 2025 466th codereport 🇨🇦 617 63 2 Oct 2024 467th BalaM314 617 104 4 Feb 2025 467th acollett89 617 104 11 hours ago 469th Schmitt-Very-Cool 616 189 3 Feb 2025 470th MarcMush 🇫🇷 615 91 8 Oct 2024 471st fourth-bit 614 105 1 Oct 2024 471st jared-hughes 614 105 3 Oct 2024 471st mattyhempstead 614 105 7 Oct 2024 474th olleicua 🇺🇸 611 78 18 Oct 2024 475th emgordon154 609 156 13 Dec 2024 476th davecame 608 106 1 Oct 2024 476th starfihs 608 106 2 Oct 2024 476th rschwa6308 🇺🇸 608 106 28 Oct 2024 476th snydej 608 106 21 Nov 2024 480th bac0id 608 141 10 Jan 2025 481st daveberlin 605 106 17 days ago 482nd Seanharrs 605 117 15 Nov 2024 483rd Shanethegamer 🇺🇸 604 217 4 Oct 2024 484th Shanethegamer 🇺🇸 603 154 3 Oct 2024 485th MeWhenI 🇻🇦 602 73 2 Oct 2024 486th alemelis 602 93 1 Oct 2024 487th commandblockguy 🇺🇸 602 107 7 Oct 2024 487th zbreit 🇺🇸 602 107 29 Oct 2024 487th StardustGogeta 602 107 30 Oct 2024 487th ZakkkkAttackkkk 🇵🇭 602 107 8 Feb 2025 491st kaascevich 601 134 6 days ago 492nd albanian-laundromat 599 159 2 days ago 493rd MeWhenI 🇻🇦 597 98 1 Oct 2024 494th roguh 🇬🇹 597 117 13 Oct 2024 495th ravnskjaer 🇩🇰 597 195 20 Dec 2024 496th neihousaigaai 596 108 4 Oct 2024 496th StefanHabel 🇨🇦 596 108 23 Jan 2025 498th dokutan 596 117 3 Oct 2024 499th SirBogman 🇺🇸 591 64 4 days ago 500th andrewjc2000 591 109 6 days ago 501st arcpolaris 590 120 28 Jan 2025 502nd luca1339 588 198 4 Nov 2024 503rd bac0id 587 119 10 Jan 2025 504th CaedenHarper 🇨🇦 586 110 9 Oct 2024 504th cros107 586 110 1 Jan 2025 504th guilhem-roy 🇫🇷 586 110 29 May 2025 504th mossiegoat 586 110 7 days ago 508th DialFrost 🇸🇬 585 67 25 Jan 2025 509th dokutan 584 174 21 Feb 2025 510th JunkIce 583 98 3 Dec 2024 511th mousetail 🇳🇱 580 111 6 Oct 2024 512th Trip-kun 580 136 5 Oct 2024 513th MeWhenI 🇻🇦 578 111 2 Oct 2024 514th Jacob385 576 202 2 Oct 2024 515th MeWhenI 🇻🇦 576 331 2 Oct 2024 516th OllieBoyne 🇬🇧 575 112 17 Oct 2024 516th WillConker 575 112 22 Oct 2024 516th maxgodfrey2004 🇨🇦 575 112 4 Jan 2025 519th 823126 573 112 13 Nov 2024 520th KatieLG 🇬🇧 572 99 1 Oct 2024 521st emgordon154 568 44 1 Oct 2024 522nd MeWhenI 🇻🇦 567 164 6 Oct 2024 523rd KatieLG 🇬🇧 561 85 12 Jan 2025 524th jipsong 🇩🇪 560 115 12 May 2025 525th aliakseikalosha 557 127 10 Oct 2024 Prev 451–525 of 713 Next