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Card Number Validation in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar 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 Minesweeper 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau 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 Erlang 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau 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 Calendar 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 Minesweeper 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 801st snoozingnewt 🇨🇦 370 267 13ms 2 Nov 2025 802nd RedzGoose 🇦🇺 369 187 114ms 2 Oct 2024 803rd P1nk-P0nk 368 215 3ms 18 Oct 2024 804th clayboll99 367 176 10ms 10 Jul 2025 805th muser-logiccpu 🇺🇦 365 177 17ms 9 Aug 2025 806th OSYCh314 🇦🇺 363 178 10ms 2 Nov 2024 807th calum12345 359 180 10ms 26 Mar 2025 808th zt14427 355 182 10ms 27 Dec 2024 809th The-Wolfson 355 230 100ms 16 Dec 2024 810th IoLimmer 353 183 9ms 10 Oct 2024 811th aksyristos 351 184 16ms 15 Nov 2024 812th sciencejiho 349 197 2ms 11 Feb 2025 813th estomagordo 🇳🇱 347 186 10ms 15 Jul 2025 814th RobGLambert 342 273 185ms 8 Jun 2025 815th Ernest1338 339 275 300ms 26 Oct 2024 816th noahhorlacher 337 191 10ms 7 Dec 2024 817th JOrE20 🇺🇸 312 389 56ms 4 Dec 2025 818th snoozingnewt 🇨🇦 303 200 3ms 2 Nov 2025 819th KatieLG 🇬🇧 298 290 2,116ms 1 Oct 2025 820th gautambp 296 218 11ms 24 Jun 2025 821st KatieLG 🇬🇧 285 241 2ms 1 Oct 2025 822nd Zhenyu-Bo 283 228 10ms 30 Jul 2025 823rd EthanJantz 281 230 10ms 5 Sep 2025 824th ReterikHub 279 310 199ms 17 Jan 2025 825th RobertBurs 273 237 10ms 22 Sep 2025 826th Mikey-Beep 🇬🇧 273 349 14ms 12 Aug 2025 827th MeWhenI 🇻🇦 272 407 119ms 6 Oct 2024 828th TJK-S 268 241 10ms 25 Oct 2025 828th NoneTheFewer 268 241 11ms 25 Dec 2025 830th te-chnical 250 258 215ms 4 May 2025 831st arebbsba 218 296 10ms 9 Jan 2025 832nd Msleizak 🇫🇷 206 226 325ms 19 May 2025 833rd benanlam 202 320 12ms 21 Dec 2025 834th theEsteemed 154 606 472ms 10 days ago 835th AidanWalter 120 540 10ms 1 Jan 2025 836th vkptimon 120 776 422ms 9 Jul 2025 837th bignamehyp 97 667 13ms 14 Nov 2024 838th dokutan 60 2,474 116ms 18 Aug 2025 839th iczelia 🇩🇪 52 2,045 4ms 14 Oct 2025 840th lyphyser 0 15 74ms 25 May 2025 841st 2bular 0 16 76ms 22 Mar 2025 841st namelessiw 0 16 141ms 19 Nov 2025 843rd darrenks 0 17 76ms 22 Mar 2025 844th Natanaelel 🇸🇪 0 18 75ms 23 Mar 2025 844th lyxal 🇦🇺 0 18 666ms 17 May 2025 844th themoonisacheese 0 18 748ms 13 Jun 2025 847th kg583 🇺🇸 0 20 265ms 14 May 2025 848th plcc0 0 21 101ms 4 Apr 2025 849th ovs-code 🇩🇪 0 37 2ms 13 Jul 2025 850th maweowo 🇩🇪 0 39 4ms 2 Oct 2025 851st ovs-code 🇩🇪 0 40 4ms 9 Jul 2025 852nd AlephSquirrel 0 43 4ms 15 Jun 2025 852nd commandz0 🇺🇸 0 43 4ms 20 days ago 854th evnu 0 44 4ms 12 Oct 2025 855th NicoBliss 0 47 10ms 20 days ago 856th ovs-code 🇩🇪 0 51 16ms 13 Jun 2025 857th GrayJoKing 🇦🇺 0 55 4ms 13 Jul 2025 858th KatieLG 🇬🇧 0 56 5ms 20 days ago 859th chunes3 🇺🇸 0 65 7ms 13 Feb 2025 860th DialFrost 🇸🇬 0 66 11ms 4 Dec 2025 861st sean-niemann 🇺🇸 0 68 58ms 30 Apr 2025 862nd dokutan 0 89 60ms 28 Jun 2025 863rd MatthewF19 0 108 113ms 17 May 2025 864th albanian-laundromat 0 123 2ms 4 Jun 2025 865th dokutan 0 138 8ms 19 days ago 866th edsrzf 🇳🇿 0 142 183ms 24 Jul 2025 First Prev 801–866 of 866
