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 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 Calendar 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 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 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 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 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 Calendar 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 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 751st Arkadios200 417 196 95ms 21 Oct 2025 752nd Shotokhan 414 156 9ms 21 Sep 2025 753rd lhulinsky 411 157 10ms 21 Oct 2024 754th ThatAlo 409 158 11ms 9 Dec 2024 755th webmiche 406 159 11ms 3 Nov 2025 756th dieggsy 406 247 21ms 10 Oct 2024 757th Mabeloid 🇳🇴 405 159 9ms 12 Oct 2024 758th CheeseCake628 🇳🇴 404 160 100ms 5 Nov 2024 759th snoozingnewt 🇨🇦 404 223 75ms 2 Nov 2025 760th pres-abhisheksinha 401 161 11ms 8 Oct 2024 761st ibixina 399 162 9ms 13 Oct 2024 761st TheAtrossian 399 162 10ms 5 Jan 2025 763rd aksyristos 399 172 2ms 14 days ago 764th Ralac07 🇦🇺 397 162 11ms 3 Oct 2024 765th Maximizer02 396 201 10ms 1 Oct 2024 766th snoozingnewt 🇨🇦 392 276 43ms 21 hours ago 767th Vaekor 391 165 12ms 15 Dec 2024 768th ehulinsky 🇺🇸 384 158 5ms 2 Apr 2025 769th fischfood 384 176 4ms 22 Oct 2024 770th JesseNoEyes 🇺🇸 382 169 9ms 1 Oct 2024 771st CheeseCake628 🇳🇴 381 151 462ms 18 Oct 2025 772nd zyc-2024 🇨🇳 380 170 10ms 5 Oct 2024 773rd ComputerKWasTaken 🇺🇸 378 171 9ms 14 Oct 2024 774th snoozingnewt 🇨🇦 376 267 13ms 2 Nov 2025 775th KatieLG 🇬🇧 375 218 112ms 15 days ago 776th navier-1 373 173 9ms 22 Sep 2025 777th c0d3-4-F00d 🇩🇪 373 184 2ms 9 Jan 2025 778th snoozingnewt 🇨🇦 372 313 45ms 2 Nov 2025 779th RobGLambert 370 232 913ms 8 Jun 2025 780th RedzGoose 🇦🇺 369 187 96ms 2 Oct 2024 781st P1nk-P0nk 369 215 3ms 18 Oct 2024 782nd clayboll99 367 176 10ms 10 Jul 2025 783rd Upload-and-View 🇺🇦 365 177 16ms 9 Aug 2025 784th OSYCh314 🇦🇺 363 178 11ms 2 Nov 2024 785th calum12345 359 180 10ms 26 Mar 2025 786th zt14427 355 182 10ms 27 Dec 2024 787th The-Wolfson 355 230 98ms 16 Dec 2024 788th JOrE20 🇺🇸 354 208 120ms 42 mins ago 789th IoLimmer 353 183 9ms 10 Oct 2024 790th aksyristos 351 184 17ms 15 Nov 2024 791st sciencejiho 348 197 2ms 11 Feb 2025 792nd estomagordo 🇳🇱 347 186 10ms 15 Jul 2025 793rd RobGLambert 342 273 200ms 8 Jun 2025 794th Ernest1338 339 275 275ms 26 Oct 2024 795th noahhorlacher 337 191 9ms 7 Dec 2024 796th JOrE20 🇺🇸 312 389 55ms 3 days ago 797th snoozingnewt 🇨🇦 303 200 4ms 2 Nov 2025 798th gautambp 296 218 10ms 24 Jun 2025 799th KatieLG 🇬🇧 296 290 1,813ms 1 Oct 2025 800th KatieLG 🇬🇧 285 241 2ms 1 Oct 2025 801st Zhenyu-Bo 283 228 10ms 30 Jul 2025 802nd EthanJantz 281 230 10ms 5 Sep 2025 803rd ReterikHub 277 310 199ms 17 Jan 2025 804th Mikey-Beep 🇬🇧 273 349 14ms 12 Aug 2025 805th RobertBurs 272 237 9ms 22 Sep 2025 806th MeWhenI 🇻🇦 271 407 132ms 6 Oct 2024 807th TJK-S 268 241 11ms 25 Oct 2025 808th te-chnical 250 258 198ms 4 May 2025 809th arebbsba 218 296 11ms 9 Jan 2025 810th Msleizak 🇫🇷 206 226 243ms 19 May 2025 811th AidanWalter 120 540 10ms 1 Jan 2025 812th vkptimon 120 776 307ms 9 Jul 2025 813th bignamehyp 97 667 10ms 14 Nov 2024 814th dokutan 60 2,474 123ms 18 Aug 2025 815th iczelia 🇩🇪 52 2,045 4ms 14 Oct 2025 816th lyphyser 0 15 80ms 25 May 2025 817th 2bular 0 16 76ms 22 Mar 2025 817th namelessiw 0 16 141ms 17 days ago 819th darrenks 0 17 78ms 22 Mar 2025 820th Natanaelel 🇸🇪 0 18 74ms 23 Mar 2025 820th lyxal 🇦🇺 0 18 498ms 17 May 2025 820th themoonisacheese 0 18 484ms 13 Jun 2025 823rd kg583 🇺🇸 0 20 272ms 14 May 2025 824th plcc0 0 21 99ms 4 Apr 2025 825th ovs-code 🇩🇪 0 37 3ms 13 Jul 2025 First Prev 751–825 of 838 Next Last