Card Number Validation in all languages in bytes. 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) Taxicab Numbers 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic 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) Taxicab Numbers 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 301st anter69 🇭🇺 800 71 1,995ms 25 Feb 2026 302nd Shanethegamer 🇺🇸 800 102 451ms 4 Oct 2024 303rd duckyluuk 🇳🇱 799 83 532ms 3 Oct 2024 303rd emgordon154 799 83 420ms 18 Nov 2024 305th sean-niemann 🇺🇸 799 92 158ms 1 Oct 2025 306th stefangimmillaro 798 87 113ms 4 Oct 2024 307th bzijlema 🇳🇱 798 100 19ms 10 Oct 2024 307th bricknellj 798 100 20ms 4 Mar 2025 309th DialFrost 🇸🇬 797 85 7ms 1 Oct 2024 309th xsot 🇸🇬 797 85 5ms 7 Oct 2024 311th MeWhenI 🇻🇦 797 109 453ms 2 Oct 2024 312th Shanethegamer 🇺🇸 797 128 2ms 3 Oct 2024 313th 2bular 796 49 31ms 8 Nov 2025 314th tayloia 🇬🇧 796 81 9ms 3 Oct 2024 314th targrik 796 81 11ms 8 Feb 2025 316th MeWhenI 🇻🇦 796 90 490ms 2 Oct 2024 317th m-tkach 🇺🇦 796 138 29ms 3 Oct 2024 318th MeWhenI 🇻🇦 795 121 42ms 40 hours ago 319th DialFrost 🇸🇬 794 84 2,616ms 26 Oct 2024 320th Natanaelel 🇸🇪 793 48 145ms 1 Oct 2024 321st pardouin 🇫🇷 791 81 136ms 29 Jan 2025 321st ovs-code 🇩🇪 791 81 124ms 17 Apr 2025 323rd jared-hughes 791 203 88ms 20 Dec 2024 324th saito-ta 🇯🇵 790 74 8ms 1 Oct 2024 325th ovs-code 🇩🇪 790 84 524ms 3 Oct 2024 325th Shanethegamer 🇺🇸 790 84 471ms 3 Oct 2024 327th lifthrasiir 🇰🇷 790 101 17ms 21 Nov 2024 327th btjones0 790 101 18ms 2 Dec 2024 329th Shanethegamer 🇺🇸 789 88 106ms 4 Oct 2024 330th emgordon154 789 151 340ms 17 Jan 2025 331st Shanethegamer 🇺🇸 788 91 459ms 3 Oct 2024 332nd edsrzf 🇳🇿 788 119 158ms 23 Jul 2025 333rd KingSkyrock 🇺🇸 787 82 11ms 14 Oct 2024 334th retrohun 786 90 2ms 27 days ago 335th stefangimmillaro 785 61 39ms 1 Oct 2024 336th namelessiw 785 119 444ms 9 Oct 2025 337th SirBogman 🇺🇸 785 138 45ms 11 Jul 2025 338th Shanethegamer 🇺🇸 784 152 337ms 3 Oct 2024 338th targrik 784 152 342ms 7 Jul 2025 340th annaproxy 782 102 18ms 1 Oct 2024 340th snoozingnewt 🇨🇦 782 102 10ms 6 Dec 2025 340th Flekay 🇩🇪 782 102 18ms 19 Feb 2026 340th dokutan 782 102 19ms 12 Mar 2026 340th aksyristos 782 102 19ms 1 Apr 2026 340th vang1ong7ang 🇦🇶 782 102 17ms 6 days ago 346th sean-niemann 🇺🇸 782 107 389ms 3 Oct 2024 347th GrayJoKing 🇦🇺 781 82 121ms 1 Oct 2024 348th SirBogman 🇺🇸 780 50 32ms 8 Jul 2025 349th duckyluuk 🇳🇱 780 97 11ms 25 Nov 2025 350th albanian-laundromat 🇺🇸 779 74 772ms 3 Nov 2025 351st m-tkach 🇺🇦 779 131 2ms 4 Oct 2024 352nd Shanethegamer 🇺🇸 778 120 482ms 24 Sep 2025 353rd uttumuttu 🇫🇮 777 83 13ms 1 Oct 2024 353rd KatieLG 🇬🇧 777 83 10ms 1 Oct 2024 353rd Larento 777 83 9ms 4 Nov 2024 353rd Andrey-Plotnikov 777 83 10ms 13 Jan 2025 353rd nathanadams 🇳🇿 777 83 10ms 6 Oct 2025 358th adriweb 🇫🇷 777 102 1ms 5 Oct 2024 359th sean-niemann 🇺🇸 777 105 461ms 1 Oct 2024 360th AlephSquirrel 776 124 7ms 21 Oct 2024 361st Natanaelel 🇸🇪 775 143 145ms 20 Apr 2025 362nd sisyphus-ppcg 🇦🇺 773 62 36ms 3 Oct 2024 363rd DialFrost 🇸🇬 773 90 2ms 18 Nov 2025 364th emgordon154 772 83 134ms 18 Nov 2024 365th DialFrost 🇸🇬 772 121 557ms 24 Sep 2025 366th emgordon154 771 197 1,641ms 15 days ago 367th targrik 770 88 8ms 7 Feb 2025 368th Waffle3z 770 103 2ms 2 Oct 2024 369th xsot 🇸🇬 770 125 7ms 20 Oct 2024 370th retrohun 769 63 20ms 2 Oct 2024 371st luuumine 🇫🇷 769 92 1ms 5 Dec 2025 371st bzd7 769 92 2ms 7 Dec 2025 373rd didion0 🇺🇸 768 84 11ms 10 Jan 2025 374th ovs-code 🇩🇪 768 122 164ms 25 Apr 2025 375th albanian-laundromat 🇺🇸 768 159 32ms 9 days ago 376th lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 377th jatloe 767 104 10ms 1 Oct 2024 378th MeWhenI 🇻🇦 767 109 389ms 2 Oct 2024 379th codereport 🇨🇦 764 51 36ms 8 hours ago 380th albanian-laundromat 🇺🇸 763 118 90ms 13 Nov 2025 381st Shanethegamer 🇺🇸 763 124 8ms 4 Oct 2024 382nd GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 383rd MeWhenI 🇻🇦 761 89 6ms 2 Oct 2024 384th sean-niemann 🇺🇸 761 93 1ms 24 Oct 2024 385th emgordon154 760 63 38ms 18 Nov 2024 385th SirBogman 🇺🇸 760 63 37ms 19 Jul 2025 387th fourth-bit 760 105 18ms 1 Oct 2024 387th jared-hughes 760 105 17ms 3 Oct 2024 387th mattyhempstead 760 105 28ms 7 Oct 2024 390th DialFrost 🇸🇬 759 76 802ms 30 Aug 2025 391st weliveinhell 🇭🇹 759 85 11ms 1 Oct 2024 391st SteRoy 759 85 13ms 13 May 2025 393rd CLOStrophobic 🇮🇹 758 160 40ms 27 Feb 2025 394th MeWhenI 🇻🇦 754 88 524ms 2 Oct 2024 394th albanian-laundromat 🇺🇸 754 88 521ms 3 Nov 2025 396th 0xjac 🇨🇭 754 158 321ms 17 Jun 2025 397th MeWhenI 🇻🇦 754 162 26ms 2 Oct 2024 398th GrayJoKing 🇦🇺 753 90 5ms 1 Oct 2024 399th stefangimmillaro 753 94 1ms 30 Oct 2024 399th emgordon154 753 94 2ms 7 Feb 2026 First Prev 301–400 of 951 Next Last