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 881st jusaka 289 275 2ms 2 hours ago 882nd kasarino 287 240 2ms 8 Feb 2026 883rd KatieLG 🇬🇧 286 241 2ms 1 Oct 2025 884th Zhenyu-Bo 284 228 11ms 30 Jul 2025 885th fantaize 284 330 201ms 10 Mar 2026 886th EthanJantz 281 230 12ms 5 Sep 2025 887th ReterikHub 281 310 210ms 17 Jan 2025 888th jusaka 276 234 108ms 35 mins ago 889th jusaka 275 243 2,488ms 50 mins ago 890th jusaka 275 435 391ms 67 mins ago 891st RobertBurs 273 237 11ms 22 Sep 2025 892nd Mikey-Beep 🇬🇧 273 349 16ms 12 Aug 2025 893rd MeWhenI 🇻🇦 272 407 119ms 6 Oct 2024 894th TJK-S 268 241 12ms 25 Oct 2025 894th NoneTheFewer 268 241 11ms 25 Dec 2025 896th kasarino 258 373 44ms 8 Feb 2026 897th jusaka 254 271 3ms 71 mins ago 898th te-chnical 251 258 222ms 4 May 2025 899th jusaka 233 388 110ms 33 mins ago 900th jusaka 227 361 148ms 53 mins ago 901st arebbsba 218 296 10ms 9 Jan 2025 902nd kasarino 216 299 11ms 8 Feb 2026 903rd jusaka 213 225 38ms 3 hours ago 904th Msleizak 🇫🇷 206 226 260ms 19 May 2025 905th benanlam 202 320 12ms 21 Dec 2025 906th jusaka 196 467 1,371ms 16 mins ago 907th jusaka 192 488 224ms 63 mins ago 908th jusaka 185 366 6ms 28 mins ago 909th jusaka 184 307 249ms 4 mins ago 910th jusaka 180 387 139ms 44 mins ago 911th jusaka 177 365 11ms 3 hours ago 912th jusaka 170 512 1,466ms 70 mins ago 913th jusaka 161 246 4ms 2 hours ago 914th theEsteemed 154 606 407ms 20 Jan 2026 915th AidanWalter 120 540 11ms 1 Jan 2025 916th vkptimon 120 776 422ms 9 Jul 2025 917th bignamehyp 97 667 11ms 14 Nov 2024 918th dokutan 60 2,474 116ms 18 Aug 2025 919th iczelia 🇩🇪 52 2,045 4ms 14 Oct 2025 920th lyphyser 0 15 32ms 25 May 2025 920th 2bular 0 15 34ms 14 Feb 2026 920th Natanaelel 🇸🇪 0 15 34ms 17 Feb 2026 923rd namelessiw 0 16 141ms 19 Nov 2025 923rd darrenks 🇺🇸 0 16 33ms 14 Feb 2026 925th lyxal 🇦🇺 0 18 848ms 17 May 2025 925th themoonisacheese 0 18 874ms 13 Jun 2025 925th plcc0 0 18 35ms 14 Feb 2026 928th kg583 🇺🇸 0 20 267ms 14 May 2025 928th jshholland 0 20 836ms 19 Feb 2026 930th plcc0 0 30 97ms 31 Jan 2026 931st ovs-code 🇩🇪 0 37 2ms 13 Jul 2025 932nd maweowo 🇩🇪 0 39 4ms 2 Oct 2025 933rd ovs-code 🇩🇪 0 40 5ms 9 Jul 2025 934th AlephSquirrel 0 43 3ms 15 Jun 2025 934th commandz0 🇺🇸 0 43 4ms 10 Jan 2026 936th evnu 0 44 5ms 12 Oct 2025 937th NicoBliss 0 47 9ms 11 Jan 2026 938th ovs-code 🇩🇪 0 51 15ms 13 Jun 2025 939th GrayJoKing 🇦🇺 0 55 3ms 13 Jul 2025 940th KatieLG 🇬🇧 0 56 4ms 10 Jan 2026 941st chunes3 🇺🇸 0 65 7ms 13 Feb 2025 942nd DialFrost 🇸🇬 0 66 11ms 4 Dec 2025 943rd sean-niemann 🇺🇸 0 68 58ms 30 Apr 2025 944th dokutan 0 84 84ms 18 days ago 945th dokutan 0 89 58ms 28 Jun 2025 946th MatthewF19 0 108 108ms 17 May 2025 947th albanian-laundromat 🇺🇸 0 123 2ms 4 Jun 2025 948th dokutan 0 138 8ms 11 Jan 2026 949th edsrzf 🇳🇿 0 142 186ms 24 Jul 2025 950th jusaka 0 285 2,913ms 16 mins ago First Prev 881–950 of 950