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 526th najs91 540 131 15 Oct 2024 526th bac0id 540 131 9 Jan 2025 528th eranws 539 119 23 Dec 2024 529th TaserTheFox 🇺🇸 536 120 8 Oct 2024 529th yokasuretsu 536 120 26 Jan 2025 529th Troon 536 120 17 Feb 2025 532nd Sciman101 536 147 26 Mar 2025 533rd msbranicky 531 175 13 Dec 2024 534th deancureton 530 121 30 Dec 2024 535th janAkali 🇷🇺 529 167 8 Oct 2024 536th chartung17 528 122 24 Mar 2025 537th msbranicky 527 126 9 Jan 2025 538th CaedenHarper 🇨🇦 524 109 9 Oct 2024 539th msbranicky 523 123 3 Oct 2024 539th bobbysq 523 123 5 Oct 2024 539th wuzekai518 523 123 8 Oct 2024 539th vhoulbreque 🇫🇷 523 123 4 Feb 2025 543rd galloj 🇨🇿 522 112 4 Oct 2024 544th NotEvenIndian 519 124 22 Oct 2024 544th ridingqwerty 🇺🇸 519 124 16 Jan 2025 546th bnic24 515 125 3 Oct 2024 546th adoxography 515 125 22 Oct 2024 548th sidok 514 109 13 Nov 2024 549th nephila-nacrea 🇬🇧 509 77 2 Oct 2024 550th dokutan 509 143 19 Oct 2024 551st KatieLG 🇬🇧 509 146 2 Oct 2024 552nd CatsAreFluffy 507 127 30 Oct 2024 552nd WillowWispy 507 127 25 May 2025 554th Chinay-Domitrix 🇺🇸 507 131 30 Mar 2025 555th KatieLG 🇬🇧 506 140 1 Oct 2024 556th msbranicky 505 138 3 Oct 2024 557th lelbal 503 128 2 Oct 2024 557th Lv0Sys 🇵🇱 503 128 6 days ago 559th madex 🇩🇪 499 129 2 Oct 2024 559th RedzGoose 🇦🇺 499 129 15 Oct 2024 559th calebaitken 499 129 11 Apr 2025 562nd MeWhenI 🇻🇦 499 149 4 Oct 2024 563rd jlangvand 496 141 15 Oct 2024 563rd HumanoidCPU 496 141 7 Mar 2025 565th Europe2048 495 130 2 Oct 2024 565th nstearns96 🇬🇧 495 130 2 Oct 2024 565th rollershutter 495 130 10 Jan 2025 568th Stockoh 🇫🇷 491 131 2 Oct 2024 568th inverseLorentz 🇦🇺 491 131 7 Oct 2024 568th sciencejiho 491 131 11 Feb 2025 568th Jaydosu 491 131 11 Apr 2025 572nd TheRealOhead 🇺🇸 489 131 1 Oct 2024 573rd HumanoidCPU 488 145 5 Oct 2024 574th Mabeloid 🇳🇴 484 133 2 Oct 2024 574th Emutis 🇱🇹 484 133 4 Feb 2025 576th h-hh-hhh 🇺🇦 484 177 2 Nov 2024 577th Mabeloid 🇳🇴 482 145 2 Oct 2024 578th alphafalfa 476 92 8 Nov 2024 579th KatieLG 🇬🇧 476 108 13 Oct 2024 580th KatieLG 🇬🇧 476 120 1 Oct 2024 581st h-hh-hhh 🇺🇦 476 147 2 Nov 2024 582nd mitzal 476 180 9 Feb 2025 583rd sciencedjinn 473 136 8 Nov 2024 583rd ihatethefrench 473 136 4 Jan 2025 585th MiffOttah 472 150 6 Oct 2024 586th Maximizer02 472 201 1 Oct 2024 587th kurkale6ka 470 137 16 Oct 2024 587th 4ndyJ 🇬🇧 470 137 14 Nov 2024 589th ejini6969 467 102 8 days ago 590th BREMAUCY 🇫🇷 466 138 2 Oct 2024 591st scpchicken 🇵🇼 463 139 6 Oct 2024 592nd varhammer 🇷🇺 463 223 23 Feb 2025 593rd NanduBC 460 140 1 Oct 2024 593rd Mikey-Beep 🇬🇧 460 140 7 Oct 2024 593rd jmerle 🇳🇱 460 140 10 Jan 2025 593rd RobertHoeh 460 140 3 Mar 2025 593rd smilesformiles3 460 140 9 days ago 593rd artem-aramma 460 140 3 days ago 599th Yewzir 🇧🇪 460 171 26 Dec 2024 600th madex 🇩🇪 458 104 2 Oct 2024 Prev 526–600 of 685 Next