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 721st KatieLG 🇬🇧 511 140 419ms 1 Oct 2024 722nd yoshykai 511 183 374ms 12 Apr 2025 723rd Chinay-Domitrix 🇺🇸 510 131 2,397ms 30 Mar 2025 724th CatsAreFluffy 509 127 17ms 30 Oct 2024 724th WillowWispy 509 127 11ms 25 May 2025 726th msbranicky 506 138 3ms 3 Oct 2024 727th snoozingnewt 🇨🇦 504 142 417ms 2 Nov 2025 728th blaztoma 🇱🇹 504 154 119ms 28 Nov 2025 729th MeWhenI 🇻🇦 502 149 54ms 4 Oct 2024 730th madex 🇩🇪 501 129 21ms 2 Oct 2024 730th RedzGoose 🇦🇺 501 129 11ms 15 Oct 2024 730th calebaitken 501 129 10ms 11 Apr 2025 730th rollershutter 501 129 19ms 20 Nov 2025 734th Europe2048 497 130 11ms 2 Oct 2024 734th nstearns96 🇬🇧 497 130 17ms 2 Oct 2024 734th Stockoh 🇫🇷 497 130 17ms 4 Jul 2025 737th inverseLorentz 🇦🇺 494 131 12ms 7 Oct 2024 737th sciencejiho 494 131 24ms 11 Feb 2025 737th Jaydosu 494 131 11ms 11 Apr 2025 737th Emutis 🇱🇹 494 131 10ms 11 Nov 2025 741st HumanoidCPU 493 145 441ms 5 Oct 2024 742nd snoozingnewt 🇨🇦 493 150 198ms 2 Nov 2025 743rd CarterStroik 493 161 2ms 19 Nov 2025 744th snoozingnewt 🇨🇦 493 249 26ms 2 Nov 2025 745th owen-c-parker 🇺🇸 492 131 11ms 1 Oct 2024 746th h-hh-hhh 🇺🇦 492 177 66ms 2 Nov 2024 747th sultan 490 132 18ms 2 days ago 748th jlangvand 489 141 1ms 15 Oct 2024 748th HumanoidCPU 489 141 1ms 7 Mar 2025 750th snoozingnewt 🇨🇦 487 117 1,338ms 2 Nov 2025 751st Mabeloid 🇳🇴 486 133 10ms 2 Oct 2024 752nd snoozingnewt 🇨🇦 483 173 377ms 2 Nov 2025 753rd mitzal 483 180 61ms 9 Feb 2025 754th Mikey-Beep 🇬🇧 479 135 17ms 4 days ago 755th MiffOttah 477 150 468ms 6 Oct 2024 755th mwarvik 🇳🇴 477 150 484ms 1 Jan 2026 757th sciencedjinn 475 136 10ms 8 Nov 2024 757th mchalunderscore 475 136 20ms 4 Jan 2025 757th Florian-Mt 475 136 17ms 5 Dec 2025 760th alphafalfa 474 92 2ms 8 Nov 2024 761st kurkale6ka 472 137 29ms 16 Oct 2024 761st 4ndyJ 🇬🇧 472 137 12ms 14 Nov 2024 761st wobblybits 472 137 18ms 17 Aug 2025 761st Andrey2001 472 137 16ms 1 Feb 2026 761st tomh1012 472 137 18ms 4 Mar 2026 761st Aquateraneal 🇺🇸 472 137 18ms 8 Mar 2026 767th luca1339 472 198 425ms 4 Nov 2024 768th ejini6969 470 102 38ms 14 Jun 2025 769th h-hh-hhh 🇺🇦 469 147 1ms 2 Nov 2024 770th snoozingnewt 🇨🇦 469 200 260ms 2 Nov 2025 771st snoozingnewt 🇨🇦 466 121 214ms 27 Nov 2025 772nd iczelia 🇩🇪 464 94 2ms 23 Sep 2025 773rd Jacob385 463 202 411ms 2 Oct 2024 774th NanduBC 462 140 11ms 1 Oct 2024 774th jmerle 🇳🇱 462 140 10ms 10 Jan 2025 774th RobertHoeh 462 140 10ms 3 Mar 2025 774th smilesformiles3 462 140 18ms 12 Jun 2025 774th artem-aramma 462 140 16ms 18 Jun 2025 779th madex 🇩🇪 461 104 37ms 2 Oct 2024 780th FranklinJiaChen 459 141 13ms 2 Oct 2024 781st TheZwierzLF 🇵🇱 457 105 37ms 8 Jan 2026 782nd jbjd 457 151 2ms 4 Feb 2026 783rd brimstonetrader 455 142 16ms 17 Oct 2024 783rd codewrite 🇬🇧 455 142 12ms 5 May 2025 783rd RobGLambert 455 142 19ms 8 Jun 2025 783rd GodlyProgrammer1 455 142 18ms 22 Nov 2025 783rd jbjd 455 142 11ms 4 Feb 2026 788th snoozingnewt 🇨🇦 455 149 5ms 2 Nov 2025 789th Arkadios200 455 180 109ms 3 days ago 790th snoozingnewt 🇨🇦 454 96 2ms 2 Nov 2025 791st IISResetMe 454 103 483ms 27 Nov 2025 792nd TheZwierzLF 🇵🇱 454 127 505ms 12 Dec 2025 793rd GeneralFabian 452 143 10ms 9 Dec 2024 793rd CutSandstone 452 143 11ms 30 Jan 2025 793rd kistlerf 🇨🇭 452 143 17ms 19 May 2025 796th dokutan 451 63 3ms 26 Nov 2024 797th snoozingnewt 🇨🇦 451 176 2ms 2 Nov 2025 798th hiichbindermax 449 144 19ms 2 Oct 2024 798th mathisfun271 449 144 12ms 14 Oct 2024 798th bob-th 449 144 11ms 22 Oct 2024 First Prev 721–800 of 1,001 Next Last