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 Andrey2001 446 129 549ms 1 Feb 2026 803rd cuvam 446 145 10ms 37 hours ago 804th croc54 443 146 11ms 15 Dec 2024 805th MyXoToD 🇩🇪 442 146 13ms 26 May 2025 806th Yewzir 🇧🇪 442 171 12ms 26 Dec 2024 807th PyryL 🇫🇮 440 147 11ms 1 Mar 2025 808th mbittner20 437 148 10ms 13 Oct 2024 808th YAJUE114514 437 148 10ms 12 Dec 2025 810th dokutan 434 130 304ms 17 Oct 2024 811th psaban 434 149 18ms 31 Jul 2025 811th TheZwierzLF 🇵🇱 434 149 11ms 24 Nov 2025 811th RodAlc24 🇪🇸 434 149 18ms 22 Feb 2026 814th KatieLG 🇬🇧 434 183 2ms 2 Oct 2025 815th Mabeloid 🇳🇴 433 133 572ms 2 Oct 2024 816th varhammer 433 223 12ms 23 Feb 2025 817th snoozingnewt 🇨🇦 432 111 34ms 2 Nov 2025 818th KatieLG 🇬🇧 431 108 6ms 13 Oct 2024 819th jameswmccarty 431 150 11ms 5 Oct 2024 819th yousefalizadeh 431 150 11ms 23 Oct 2024 819th feherd 431 150 10ms 31 Oct 2024 819th kadamkaustubh 431 150 11ms 8 Nov 2025 823rd MeWhenI 🇻🇦 426 143 6ms 2 Oct 2024 824th jusaka 426 201 26ms 4 days ago 825th JOrE20 425 136 1,075ms 7 Dec 2025 826th adamnielson42 🇺🇸 425 152 10ms 6 Oct 2024 826th voidgloom 425 152 11ms 22 Oct 2024 826th omero-san 425 152 10ms 22 Sep 2025 826th brochmann 🇸🇪 425 152 10ms 12 Oct 2025 830th denisfouchard 423 153 10ms 21 Aug 2025 831st osNiko 🇧🇷 420 154 11ms 21 Aug 2025 832nd scpchicken 🇵🇼 419 91 160ms 15 days ago 833rd celiendonze 🇨🇭 417 155 11ms 17 Oct 2025 834th jusaka 417 369 1,679ms 4 days ago 835th Shotokhan 415 156 10ms 21 Sep 2025 836th snoozingnewt 🇨🇦 415 267 28ms 18 Dec 2025 837th lhulinsky 412 157 11ms 21 Oct 2024 838th ellis-rix 409 158 11ms 9 Dec 2024 839th webmiche 407 159 11ms 3 Nov 2025 840th Mabeloid 🇳🇴 406 159 14ms 12 Oct 2024 841st snoozingnewt 🇨🇦 406 223 96ms 2 Nov 2025 842nd CheeseCake628 🇳🇴 404 160 108ms 5 Nov 2024 843rd pres-abhisheksinha 402 161 10ms 8 Oct 2024 844th aksyristos 401 172 2ms 23 Nov 2025 845th ibixina 399 162 10ms 13 Oct 2024 845th TheAtrossian 399 162 13ms 5 Jan 2025 847th Ralac07 🇦🇺 398 162 16ms 3 Oct 2024 848th Maximizer02 398 201 12ms 1 Oct 2024 849th zgialor-lab 397 163 18ms 91 mins ago 850th jusaka 396 281 154ms 3 days ago 851st snoozingnewt 🇨🇦 395 276 40ms 6 Dec 2025 852nd Vaekor 392 165 11ms 15 Dec 2024 853rd dieggsy 391 247 19ms 10 Oct 2024 854th JOrE20 387 191 157ms 27 Jan 2026 855th ehulinsky 🇺🇸 386 158 5ms 2 Apr 2025 856th fischfood 386 176 5ms 22 Oct 2024 857th JesseNoEyes 🇺🇸 383 169 10ms 1 Oct 2024 858th CheeseCake628 🇳🇴 381 151 532ms 18 Oct 2025 859th zyc-2024 🇨🇳 380 170 10ms 5 Oct 2024 860th ComputerKWasTaken 🇺🇸 378 171 11ms 14 Oct 2024 861st KatieLG 🇬🇧 376 218 118ms 21 Nov 2025 862nd jusaka 376 258 43ms 4 days ago 863rd c0d3-4-F00d 🇩🇪 375 184 2ms 9 Jan 2025 864th RobGLambert 375 232 1,395ms 8 Jun 2025 865th navier-1 374 173 10ms 22 Sep 2025 865th ComradeSquirrel 374 173 10ms 6 hours ago 867th RedzGoose 🇦🇺 373 187 121ms 2 Oct 2024 868th P1nk-P0nk 369 215 3ms 18 Oct 2024 869th clayboll99 367 176 11ms 10 Jul 2025 870th snoozingnewt 🇨🇦 366 313 40ms 2 Nov 2025 871st muser-logiccpu 🇺🇦 365 177 18ms 9 Aug 2025 872nd OSYCh314 🇦🇺 363 178 11ms 2 Nov 2024 873rd snoozingnewt 🇨🇦 362 267 13ms 2 Nov 2025 874th calum12345 359 180 11ms 26 Mar 2025 875th The-Wolfson 356 230 111ms 16 Dec 2024 876th zt14427 355 182 10ms 27 Dec 2024 877th IoLimmer 353 183 11ms 10 Oct 2024 878th sciencejiho 350 197 2ms 11 Feb 2025 879th estomagordo 🇳🇱 348 186 11ms 15 Jul 2025 880th RobGLambert 344 273 200ms 8 Jun 2025 First Prev 801–880 of 1,002 Next Last