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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 801st grey0ut 446 105 427ms 11 Jan 2025 802nd croc54 443 146 11ms 15 Dec 2024 803rd MyXoToD 🇩🇪 442 146 13ms 26 May 2025 804th Yewzir 🇧🇪 442 171 12ms 26 Dec 2024 805th PyryL 🇫🇮 440 147 11ms 1 Mar 2025 806th mbittner20 437 148 10ms 13 Oct 2024 806th YAJUE114514 437 148 10ms 12 Dec 2025 808th dokutan 434 130 304ms 17 Oct 2024 809th psaban 434 149 18ms 31 Jul 2025 809th TheZwierzLF 🇵🇱 434 149 11ms 24 Nov 2025 809th RodAlc24 🇪🇸 434 149 18ms 22 Feb 2026 812th KatieLG 🇬🇧 434 183 2ms 2 Oct 2025 813th Mabeloid 🇳🇴 433 133 572ms 2 Oct 2024 814th varhammer 433 223 12ms 23 Feb 2025 815th snoozingnewt 🇨🇦 432 111 34ms 2 Nov 2025 816th KatieLG 🇬🇧 431 108 6ms 13 Oct 2024 817th jameswmccarty 431 150 11ms 5 Oct 2024 817th yousefalizadeh 431 150 11ms 23 Oct 2024 817th feherd 431 150 10ms 31 Oct 2024 817th kadamkaustubh 431 150 11ms 8 Nov 2025 821st MeWhenI 🇻🇦 426 143 6ms 2 Oct 2024 822nd jusaka 426 201 26ms 22 hours ago 823rd JOrE20 425 136 1,075ms 7 Dec 2025 824th adamnielson42 🇺🇸 425 152 10ms 6 Oct 2024 824th voidgloom 425 152 11ms 22 Oct 2024 824th omero-san 425 152 10ms 22 Sep 2025 824th brochmann 🇸🇪 425 152 10ms 12 Oct 2025 828th denisfouchard 423 153 10ms 21 Aug 2025 829th osNiko 🇧🇷 420 154 11ms 21 Aug 2025 830th scpchicken 🇵🇼 419 91 160ms 11 days ago 831st celiendonze 🇨🇭 417 155 11ms 17 Oct 2025 832nd jusaka 417 369 1,679ms 24 hours ago 833rd Shotokhan 415 156 10ms 21 Sep 2025 834th snoozingnewt 🇨🇦 415 267 28ms 18 Dec 2025 835th lhulinsky 412 157 11ms 21 Oct 2024 836th ellis-rix 409 158 11ms 9 Dec 2024 837th webmiche 407 159 11ms 3 Nov 2025 838th Mabeloid 🇳🇴 406 159 14ms 12 Oct 2024 839th snoozingnewt 🇨🇦 406 223 96ms 2 Nov 2025 840th CheeseCake628 🇳🇴 404 160 108ms 5 Nov 2024 841st pres-abhisheksinha 402 161 10ms 8 Oct 2024 842nd aksyristos 401 172 2ms 23 Nov 2025 843rd ibixina 399 162 10ms 13 Oct 2024 843rd TheAtrossian 399 162 13ms 5 Jan 2025 845th Ralac07 🇦🇺 398 162 16ms 3 Oct 2024 846th Maximizer02 398 201 12ms 1 Oct 2024 847th jusaka 396 281 154ms 4 hours ago 848th snoozingnewt 🇨🇦 395 276 40ms 6 Dec 2025 849th Vaekor 392 165 11ms 15 Dec 2024 850th dieggsy 391 247 19ms 10 Oct 2024 851st JOrE20 387 191 157ms 27 Jan 2026 852nd ehulinsky 🇺🇸 386 158 5ms 2 Apr 2025 853rd fischfood 386 176 5ms 22 Oct 2024 854th JesseNoEyes 🇺🇸 383 169 10ms 1 Oct 2024 855th CheeseCake628 🇳🇴 382 151 532ms 18 Oct 2025 856th zyc-2024 🇨🇳 380 170 10ms 5 Oct 2024 857th ComputerKWasTaken 🇺🇸 378 171 11ms 14 Oct 2024 858th KatieLG 🇬🇧 376 218 112ms 21 Nov 2025 859th jusaka 376 258 43ms 21 hours ago 860th c0d3-4-F00d 🇩🇪 375 184 2ms 9 Jan 2025 861st RobGLambert 375 232 1,395ms 8 Jun 2025 862nd navier-1 374 173 10ms 22 Sep 2025 863rd RedzGoose 🇦🇺 373 187 109ms 2 Oct 2024 864th P1nk-P0nk 369 215 3ms 18 Oct 2024 865th clayboll99 367 176 11ms 10 Jul 2025 866th snoozingnewt 🇨🇦 366 313 40ms 2 Nov 2025 867th muser-logiccpu 🇺🇦 365 177 18ms 9 Aug 2025 868th OSYCh314 🇦🇺 363 178 11ms 2 Nov 2024 869th snoozingnewt 🇨🇦 362 267 13ms 2 Nov 2025 870th calum12345 359 180 11ms 26 Mar 2025 871st The-Wolfson 356 230 110ms 16 Dec 2024 872nd zt14427 355 182 10ms 27 Dec 2024 873rd IoLimmer 353 183 11ms 10 Oct 2024 874th sciencejiho 350 197 2ms 11 Feb 2025 875th estomagordo 🇳🇱 348 186 11ms 15 Jul 2025 876th RobGLambert 344 273 198ms 8 Jun 2025 877th Ernest1338 341 275 297ms 26 Oct 2024 878th noahhorlacher 338 191 15ms 7 Dec 2024 879th ComradeSquirrel 337 192 10ms 23 hours ago 880th Inbarw100 333 207 2ms 12 days ago First Prev 801–880 of 999 Next Last