Card Number Validation in all languages in bytes. 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 Hilbert Curve 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 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight 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 Hilbert Curve 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 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 Bytes Time 676th Vaekor 482 165 15 Dec 2024 677th alphafalfa 477 92 8 Nov 2024 678th KatieLG 🇬🇧 476 108 13 Oct 2024 679th h-hh-hhh 🇺🇦 476 147 2 Nov 2024 680th mitzal 476 180 9 Feb 2025 681st MiffOttah 473 150 6 Oct 2024 682nd JesseNoEyes 🇺🇸 471 169 1 Oct 2024 683rd Maximizer02 471 201 1 Oct 2024 684th ejini6969 468 102 14 Jun 2025 685th zyc-2024 🇨🇳 468 170 5 Oct 2024 686th ComputerKWasTaken 🇺🇸 465 171 14 Oct 2024 687th Yewzir 🇧🇪 460 171 26 Dec 2024 688th madex 🇩🇪 459 104 2 Oct 2024 689th clayboll99 452 176 10 Jul 2025 690th dokutan 451 63 26 Nov 2024 691st IISResetMe 449 104 27 Mar 2025 692nd Upload-and-View 🇺🇦 449 177 27 days ago 693rd varhammer 🇷🇺 448 223 23 Feb 2025 694th OSYCh314 🇦🇺 447 178 2 Nov 2024 695th dokutan 445 109 19 Oct 2024 696th grey0ut 444 105 11 Jan 2025 697th calum12345 442 180 26 Mar 2025 698th MyXoToD 🇩🇪 440 146 26 May 2025 699th zt14427 437 182 27 Dec 2024 700th IoLimmer 435 183 10 Oct 2024 701st aksyristos 432 184 15 Nov 2024 702nd estomagordo 🇳🇱 428 186 15 Jul 2025 703rd dokutan 424 132 3 Oct 2024 704th MeWhenI 🇻🇦 417 143 2 Oct 2024 705th CheeseCake628 🇳🇴 413 160 19 May 2025 706th dieggsy 405 247 10 Oct 2024 707th Mabeloid 🇳🇴 404 159 12 Oct 2024 708th Ralac07 🇦🇺 397 162 3 Oct 2024 709th snoozingnewt 🇺🇸 383 176 2 Oct 2024 709th fischfood 383 176 22 Oct 2024 711th c0d3-4-F00d 🇩🇪 380 184 9 Jan 2025 712th ehulinsky 🇺🇸 378 158 2 Apr 2025 713th RedzGoose 🇦🇺 369 187 2 Oct 2024 714th RobGLambert 369 232 8 Jun 2025 715th P1nk-P0nk 367 215 18 Oct 2024 716th gautambp 365 218 24 Jun 2025 717th Arkadios200 360 225 6 hours ago 718th sciencejiho 355 197 11 Feb 2025 719th The-Wolfson 352 230 16 Dec 2024 720th Zhenyu-Bo 349 228 30 Jul 2025 721st EthanJantz 346 230 7 hours ago 722nd RobGLambert 340 273 8 Jun 2025 723rd Ernest1338 338 275 26 Oct 2024 724th noahhorlacher 337 191 7 Dec 2024 725th te-chnical 308 258 4 May 2025 726th ReterikHub 276 310 17 Jan 2025 727th Mikey-Beep 🇬🇧 273 349 24 days ago 728th MeWhenI 🇻🇦 270 407 6 Oct 2024 729th arebbsba 269 296 9 Jan 2025 730th Msleizak 🇫🇷 206 226 19 May 2025 731st vkptimon 150 776 9 Jul 2025 732nd AidanWalter 147 540 1 Jan 2025 733rd bignamehyp 119 667 14 Nov 2024 734th dokutan 60 2,475 18 days ago 735th lyphyser 0 15 25 May 2025 736th 2bular 0 16 22 Mar 2025 737th darrenks 0 17 22 Mar 2025 738th Natanaelel 🇸🇪 0 18 23 Mar 2025 739th plcc0 0 21 4 Apr 2025 740th kg583 🇺🇸 0 25 8 Feb 2025 741st lyxal 🇦🇺 0 27 17 May 2025 742nd themoonisacheese 0 35 13 Jun 2025 743rd ovs-code 🇩🇪 0 54 9 Jul 2025 744th GrayJoKing 🇦🇺 0 55 13 Jul 2025 745th ovs-code 🇩🇪 0 58 13 Jul 2025 746th AlephSquirrel 0 63 15 Jun 2025 747th DialFrost 🇸🇬 0 67 13 Feb 2025 748th chunes3 🇺🇸 0 69 13 Feb 2025 749th ovs-code 🇩🇪 0 76 13 Jun 2025 750th sean-niemann 🇺🇸 0 80 29 Apr 2025 Prev 676–750 of 754 Next