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 481st Alex-x90 🇺🇸 690 100 2ms 1 Oct 2024 481st madex 🇩🇪 690 100 2ms 6 days ago 483rd dokutan 690 116 7ms 19 Oct 2024 484th MeWhenI 🇻🇦 688 68 286ms 2 Oct 2024 485th DialFrost 🇸🇬 688 94 17ms 1 Oct 2024 486th aDwarfNamedUrist 687 162 138ms 1 Sep 2025 487th ovs-code 🇩🇪 686 84 524ms 3 Oct 2024 488th XenThe 🇬🇧 686 94 11ms 7 Jul 2025 489th KatieLG 🇬🇧 685 70 37ms 2 Oct 2025 490th the-zammers 682 163 149ms 1 Dec 2024 491st GrayJoKing 🇦🇺 681 79 1,204ms 1 Oct 2024 492nd snoozingnewt 🇨🇦 680 95 78ms 23 Oct 2025 493rd tailorspy 680 128 440ms 4 Oct 2024 494th jkelly467 675 99 2,591ms 22 Jan 2026 495th emgordon154 675 115 111ms 9 Dec 2025 496th Yax42 🇫🇷 675 129 87ms 8 Jan 2026 496th emgordon154 675 129 60ms 8 Feb 2026 498th jerrandolph 675 177 368ms 25 Sep 2025 498th CaedenHarper 🇨🇦 675 177 326ms 17 Nov 2025 500th MeWhenI 🇻🇦 674 96 17ms 30 Jul 2025 501st HumanoidCPU 672 96 12ms 7 Mar 2025 502nd error256 672 101 5ms 24 Oct 2024 503rd Shanethegamer 🇺🇸 671 65 1ms 1 Oct 2024 504th solisolu 669 103 2ms 14 days ago 505th CaedenHarper 🇨🇦 668 140 571ms 3 Oct 2025 506th GolfingSuccess 🇬🇷 668 174 40ms 22 days ago 507th Shanethegamer 🇺🇸 667 172 39ms 2 Oct 2024 508th dbut2 🇦🇺 667 179 327ms 31 Oct 2024 509th two-bad 🇬🇧 665 97 12ms 2 Oct 2024 509th LordSir101 665 97 11ms 10 Aug 2025 511th yeminghan2021 664 131 65ms 3 Feb 2026 512th AlephSquirrel 664 146 4ms 14 May 2025 513th BlankSpruce 663 104 2ms 1 Oct 2024 514th snoozingnewt 🇨🇦 663 180 338ms 2 Nov 2025 515th 4hg 🇺🇸 662 59 34ms 5 Oct 2024 516th MeWhenI 🇻🇦 662 88 130ms 2 Oct 2024 516th Shanethegamer 🇺🇸 662 88 135ms 5 Oct 2024 518th error256 661 142 187ms 31 May 2025 519th albanian-laundromat 🇺🇸 661 291 12ms 13 days ago 520th GolfingSuccess 🇬🇷 660 98 18ms 5 Oct 2024 520th JunkIce 660 98 10ms 3 Dec 2024 522nd MeWhenI 🇻🇦 659 174 41ms 13 Feb 2025 523rd BambooleanLogic 🇸🇪 658 98 10ms 21 Oct 2024 524th Herbert00709 🇵🇱 657 105 2ms 14 Jun 2025 525th MeWhenI 🇻🇦 655 88 524ms 2 Oct 2024 526th voytxt 🇨🇿 654 89 131ms 17 Apr 2025 526th dokutan 654 89 132ms 28 Jun 2025 528th SirBogman 🇺🇸 653 99 17ms 8 Oct 2024 528th solisolu 653 99 22ms 13 Mar 2026 530th w911 653 183 327ms 7 Oct 2024 531st frankgraziano 652 128 7ms 21 Feb 2026 532nd rucin93 🇵🇱 652 144 153ms 28 Oct 2024 533rd DialFrost 🇸🇬 651 67 2ms 22 Dec 2024 534th dokutan 651 99 10ms 28 Jun 2025 535th rniii 650 106 1ms 2 Oct 2024 535th gastropner 650 106 2ms 11 Feb 2025 537th scpchicken 🇵🇼 648 61 4ms 12 days ago 538th FlorianCassayre 🇫🇷 647 100 17ms 1 Oct 2024 538th bzijlema 🇳🇱 647 100 19ms 10 Oct 2024 538th bricknellj 647 100 20ms 4 Mar 2025 541st koipondx86 646 123 2ms 8 Nov 2024 542nd CaedenHarper 🇨🇦 645 100 13ms 22 Aug 2025 542nd iczelia 🇩🇪 645 100 10ms 11 Oct 2025 542nd Yax42 🇫🇷 645 100 12ms 27 Nov 2025 545th Shanethegamer 🇺🇸 645 124 6ms 4 Oct 2024 546th Apataras 645 145 390ms 25 Jun 2025 547th tomh1012 644 111 529ms 8 Sep 2025 548th elgan65536 🇺🇸 643 146 178ms 2 Oct 2024 548th luuumine 🇫🇷 643 146 153ms 26 Nov 2025 550th stefangimmillaro 641 73 304ms 1 Oct 2024 551st emgordon154 641 111 4ms 12 Jan 2025 552nd btjones0 640 101 18ms 2 Dec 2024 553rd dokutan 640 146 379ms 23 Nov 2025 554th MeWhenI 🇻🇦 638 73 7ms 3 Oct 2024 555th Yax42 🇫🇷 638 108 2ms 23 days ago 556th MeWhenI 🇻🇦 635 91 1,014ms 29 Aug 2025 557th msbranicky 635 188 328ms 7 Jan 2025 558th annaproxy 634 102 18ms 1 Oct 2024 558th xyangst 634 102 10ms 1 Oct 2024 558th aksyristos 634 102 19ms 16 days ago First Prev 481–560 of 1,001 Next Last