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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization 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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 526th Sciman101 536 147 26 Mar 2025 527th dokutan 531 143 19 Oct 2024 528th deancureton 529 121 30 Dec 2024 529th janAkali 🇷🇺 529 167 8 Oct 2024 530th chartung17 527 122 24 Mar 2025 531st msbranicky 527 126 9 Jan 2025 532nd CaedenHarper 🇨🇦 523 109 9 Oct 2024 533rd msbranicky 523 123 3 Oct 2024 533rd bobbysq 523 123 5 Oct 2024 533rd wuzekai518 523 123 8 Oct 2024 533rd vhoulbreque 🇫🇷 523 123 4 Feb 2025 537th galloj 🇨🇿 522 112 4 Oct 2024 538th NotEvenIndian 519 124 22 Oct 2024 538th ridingqwerty 🇺🇸 519 124 16 Jan 2025 540th sidok 514 109 13 Nov 2024 541st bnic24 514 125 3 Oct 2024 541st adoxography 514 125 22 Oct 2024 543rd nephila-nacrea 🇬🇧 509 77 2 Oct 2024 544th KatieLG 🇬🇧 509 146 2 Oct 2024 545th Chinay-Domitrix 🇺🇸 507 131 30 Mar 2025 546th CatsAreFluffy 506 127 30 Oct 2024 547th KatieLG 🇬🇧 506 140 1 Oct 2024 548th msbranicky 505 138 3 Oct 2024 549th lelbal 502 128 2 Oct 2024 549th WillowWispy 502 128 14 Mar 2025 551st madex 🇩🇪 499 129 2 Oct 2024 551st RedzGoose 🇦🇺 499 129 15 Oct 2024 551st calebaitken 499 129 11 Apr 2025 554th MeWhenI 🇻🇦 499 149 4 Oct 2024 555th Europe2048 495 130 2 Oct 2024 555th nstearns96 🇬🇧 495 130 2 Oct 2024 555th rollershutter 495 130 10 Jan 2025 558th jlangvand 495 141 15 Oct 2024 558th HumanoidCPU 495 141 7 Mar 2025 560th Stockoh 🇫🇷 491 131 2 Oct 2024 560th inverseLorentz 🇦🇺 491 131 7 Oct 2024 560th sciencejiho 491 131 11 Feb 2025 560th Jaydosu 491 131 11 Apr 2025 564th TheRealOhead 🇺🇸 489 131 1 Oct 2024 565th HumanoidCPU 488 145 5 Oct 2024 566th Mabeloid 🇳🇴 484 133 2 Oct 2024 566th Emutis 🇱🇹 484 133 4 Feb 2025 568th h-hh-hhh 🇺🇦 483 177 2 Nov 2024 569th Mabeloid 🇳🇴 482 145 2 Oct 2024 570th alphafalfa 476 92 8 Nov 2024 571st KatieLG 🇬🇧 476 108 13 Oct 2024 572nd KatieLG 🇬🇧 475 120 1 Oct 2024 573rd h-hh-hhh 🇺🇦 475 147 2 Nov 2024 574th mitzal 475 180 9 Feb 2025 575th sciencedjinn 473 136 8 Nov 2024 575th ihatethefrench 473 136 4 Jan 2025 577th MiffOttah 472 150 6 Oct 2024 578th Maximizer02 472 201 1 Oct 2024 579th kurkale6ka 469 137 16 Oct 2024 579th 4ndyJ 🇬🇧 469 137 14 Nov 2024 581st BREMAUCY 🇫🇷 466 138 2 Oct 2024 582nd scpchicken 🇵🇼 463 139 6 Oct 2024 583rd varhammer 🇷🇺 463 223 23 Feb 2025 584th Yewzir 🇧🇪 460 171 26 Dec 2024 585th NanduBC 459 140 1 Oct 2024 585th Mikey-Beep 🇬🇧 459 140 7 Oct 2024 585th jmerle 🇳🇱 459 140 10 Jan 2025 585th RobertHoeh 459 140 3 Mar 2025 589th madex 🇩🇪 458 104 2 Oct 2024 590th FranklinJiaChen 456 141 2 Oct 2024 591st brimstonetrader 453 142 17 Oct 2024 591st codewrite 🇬🇧 453 142 5 days ago 593rd dokutan 450 63 26 Nov 2024 594th GeneralFabian 450 143 9 Dec 2024 594th CutSandstone 450 143 30 Jan 2025 596th IISResetMe 447 104 27 Mar 2025 597th hiichbindermax 447 144 2 Oct 2024 597th mathisfun271 447 144 14 Oct 2024 597th bob-th 447 144 22 Oct 2024 600th dokutan 445 109 19 Oct 2024 Prev 526–600 of 660 Next