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 kasarino 287 240 2ms 8 Feb 2026 882nd KatieLG 🇬🇧 286 241 2ms 1 Oct 2025 883rd Zhenyu-Bo 284 228 11ms 30 Jul 2025 884th fantaize 284 330 201ms 10 Mar 2026 885th EthanJantz 281 230 12ms 5 Sep 2025 886th ReterikHub 281 310 210ms 17 Jan 2025 887th jusaka 276 234 108ms 2 hours ago 888th jusaka 275 243 2,488ms 2 hours ago 889th jusaka 275 435 391ms 2 hours ago 890th RobertBurs 273 237 11ms 22 Sep 2025 891st Mikey-Beep 🇬🇧 273 349 16ms 12 Aug 2025 892nd MeWhenI 🇻🇦 272 407 119ms 6 Oct 2024 893rd TJK-S 268 241 12ms 25 Oct 2025 893rd NoneTheFewer 268 241 11ms 25 Dec 2025 895th kasarino 258 373 44ms 8 Feb 2026 896th jusaka 254 271 3ms 2 hours ago 897th te-chnical 251 258 222ms 4 May 2025 898th jusaka 249 336 399ms 90 mins ago 899th jusaka 243 421 4ms 23 mins ago 900th jusaka 239 309 204ms 35 mins ago 901st jusaka 233 388 110ms 2 hours ago 902nd jusaka 227 361 148ms 2 hours ago 903rd jusaka 224 254 1,457ms 85 mins ago 904th arebbsba 218 296 10ms 9 Jan 2025 905th kasarino 216 299 11ms 8 Feb 2026 906th jusaka 213 225 38ms 4 hours ago 907th jusaka 211 390 188ms 58 mins ago 908th Msleizak 🇫🇷 206 226 260ms 19 May 2025 909th benanlam 202 320 12ms 21 Dec 2025 910th jusaka 199 556 29ms 68 mins ago 911th jusaka 194 467 1,371ms 108 mins ago 912th jusaka 192 488 224ms 2 hours ago 913th jusaka 185 366 6ms 2 hours ago 914th jusaka 184 307 249ms 95 mins ago 915th jusaka 180 387 139ms 2 hours ago 916th jusaka 177 365 11ms 4 hours ago 917th jusaka 172 337 1,983ms 69 mins ago 918th jusaka 172 450 131ms 78 mins ago 919th jusaka 170 512 1,466ms 2 hours ago 920th jusaka 169 985 1,436ms 19 mins ago 921st jusaka 161 246 4ms 4 hours ago 922nd theEsteemed 154 606 407ms 20 Jan 2026 923rd jusaka 146 744 46ms 11 mins ago 924th jusaka 141 568 13ms 80 mins ago 925th AidanWalter 120 540 11ms 1 Jan 2025 926th vkptimon 120 776 422ms 9 Jul 2025 927th bignamehyp 97 667 11ms 14 Nov 2024 928th dokutan 60 2,474 116ms 18 Aug 2025 929th iczelia 🇩🇪 52 2,045 4ms 14 Oct 2025 930th lyphyser 0 15 32ms 25 May 2025 930th 2bular 0 15 34ms 14 Feb 2026 930th Natanaelel 🇸🇪 0 15 34ms 17 Feb 2026 933rd namelessiw 0 16 141ms 19 Nov 2025 933rd darrenks 🇺🇸 0 16 33ms 14 Feb 2026 935th lyxal 🇦🇺 0 18 848ms 17 May 2025 935th themoonisacheese 0 18 874ms 13 Jun 2025 935th plcc0 0 18 35ms 14 Feb 2026 938th kg583 🇺🇸 0 20 267ms 14 May 2025 938th jshholland 0 20 836ms 19 Feb 2026 940th plcc0 0 30 97ms 31 Jan 2026 941st ovs-code 🇩🇪 0 37 2ms 13 Jul 2025 942nd maweowo 🇩🇪 0 39 4ms 2 Oct 2025 943rd ovs-code 🇩🇪 0 40 5ms 9 Jul 2025 944th AlephSquirrel 0 43 3ms 15 Jun 2025 944th commandz0 🇺🇸 0 43 4ms 10 Jan 2026 946th evnu 0 44 5ms 12 Oct 2025 947th NicoBliss 0 47 9ms 11 Jan 2026 948th ovs-code 🇩🇪 0 51 15ms 13 Jun 2025 949th GrayJoKing 🇦🇺 0 55 3ms 13 Jul 2025 950th KatieLG 🇬🇧 0 56 4ms 10 Jan 2026 951st chunes3 🇺🇸 0 65 7ms 13 Feb 2025 952nd DialFrost 🇸🇬 0 66 11ms 4 Dec 2025 953rd sean-niemann 🇺🇸 0 68 58ms 30 Apr 2025 954th dokutan 0 84 84ms 18 days ago 955th dokutan 0 89 58ms 28 Jun 2025 956th MatthewF19 0 108 108ms 17 May 2025 957th albanian-laundromat 🇺🇸 0 123 2ms 4 Jun 2025 958th dokutan 0 138 8ms 11 Jan 2026 959th edsrzf 🇳🇿 0 142 186ms 24 Jul 2025 960th jusaka 0 285 2,913ms 108 mins ago First Prev 881–960 of 960