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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 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 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 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 Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 801st hiichbindermax 449 144 19ms 2 Oct 2024 801st mathisfun271 449 144 12ms 14 Oct 2024 801st bob-th 449 144 11ms 22 Oct 2024 804th grey0ut 446 105 464ms 11 Jan 2025 805th Andrey2001 446 129 549ms 1 Feb 2026 806th dokutan 445 109 10ms 19 Oct 2024 807th croc54 443 146 11ms 15 Dec 2024 808th MyXoToD 🇩🇪 442 146 10ms 26 May 2025 809th Yewzir 🇧🇪 442 171 14ms 26 Dec 2024 810th PyryL 🇫🇮 440 147 11ms 1 Mar 2025 811th mbittner20 437 148 10ms 13 Oct 2024 811th YAJUE114514 437 148 10ms 12 Dec 2025 813th psaban 434 149 18ms 31 Jul 2025 813th TheZwierzLF 🇵🇱 434 149 11ms 24 Nov 2025 813th RodAlc24 🇪🇸 434 149 18ms 22 Feb 2026 816th dokutan 433 130 304ms 17 Oct 2024 817th Mabeloid 🇳🇴 433 133 572ms 2 Oct 2024 818th KatieLG 🇬🇧 433 183 2ms 2 Oct 2025 819th snoozingnewt 🇨🇦 432 111 36ms 2 Nov 2025 820th KatieLG 🇬🇧 431 108 6ms 13 Oct 2024 821st jameswmccarty 431 150 11ms 5 Oct 2024 821st yousefalizadeh 431 150 11ms 23 Oct 2024 821st feherd 431 150 10ms 31 Oct 2024 821st kadamkaustubh 431 150 11ms 8 Nov 2025 825th varhammer 🇷🇺 431 223 12ms 23 Feb 2025 826th adamnielson42 🇺🇸 425 152 10ms 6 Oct 2024 826th voidgloom 425 152 11ms 22 Oct 2024 826th omero-san 425 152 10ms 22 Sep 2025 826th brochmann 🇸🇪 425 152 10ms 12 Oct 2025 830th JOrE20 424 136 751ms 7 Dec 2025 831st MeWhenI 🇻🇦 424 143 6ms 2 Oct 2024 832nd denisfouchard 423 153 10ms 21 Aug 2025 833rd osNiko 🇧🇷 420 154 11ms 21 Aug 2025 834th scpchicken 🇵🇼 418 91 187ms 25 days ago 835th celiendonze 🇨🇭 417 155 11ms 17 Oct 2025 836th Shotokhan 415 156 10ms 21 Sep 2025 837th lhulinsky 412 157 11ms 21 Oct 2024 838th snoozingnewt 🇨🇦 411 267 28ms 18 Dec 2025 839th ellis-rix 409 158 11ms 9 Dec 2024 840th webmiche 407 159 11ms 3 Nov 2025 841st Mabeloid 🇳🇴 406 159 11ms 12 Oct 2024 842nd CheeseCake628 🇳🇴 404 160 108ms 5 Nov 2024 843rd snoozingnewt 🇨🇦 404 223 96ms 2 Nov 2025 844th pres-abhisheksinha 402 161 10ms 8 Oct 2024 845th aksyristos 401 172 2ms 23 Nov 2025 846th ibixina 399 162 10ms 13 Oct 2024 846th TheAtrossian 399 162 13ms 5 Jan 2025 848th Ralac07 🇦🇺 398 162 14ms 3 Oct 2024 849th zgialor-lab 397 163 18ms 10 days ago 850th Maximizer02 396 201 12ms 1 Oct 2024 851st Vaekor 392 165 11ms 15 Dec 2024 852nd snoozingnewt 🇨🇦 392 276 40ms 6 Dec 2025 853rd dieggsy 389 247 19ms 10 Oct 2024 854th fischfood 385 176 5ms 22 Oct 2024 855th JOrE20 385 191 157ms 27 Jan 2026 856th ehulinsky 🇺🇸 384 158 5ms 2 Apr 2025 857th JesseNoEyes 🇺🇸 383 169 10ms 1 Oct 2024 858th CheeseCake628 🇳🇴 381 151 532ms 18 Oct 2025 859th zyc-2024 🇨🇳 380 170 10ms 5 Oct 2024 860th ComputerKWasTaken 🇺🇸 378 171 11ms 14 Oct 2024 861st c0d3-4-F00d 🇩🇪 375 184 2ms 9 Jan 2025 862nd KatieLG 🇬🇧 375 218 118ms 21 Nov 2025 863rd RobGLambert 375 232 1,411ms 8 Jun 2025 864th navier-1 374 173 10ms 22 Sep 2025 864th ComradeSquirrel 374 173 10ms 10 days ago 866th RedzGoose 🇦🇺 371 187 119ms 2 Oct 2024 867th P1nk-P0nk 369 215 3ms 18 Oct 2024 868th clayboll99 367 176 11ms 10 Jul 2025 869th muser-logiccpu 🇺🇦 365 177 18ms 9 Aug 2025 870th snoozingnewt 🇨🇦 364 313 40ms 2 Nov 2025 871st OSYCh314 🇦🇺 363 178 11ms 2 Nov 2024 872nd snoozingnewt 🇨🇦 360 267 13ms 2 Nov 2025 873rd calum12345 359 180 11ms 26 Mar 2025 874th zt14427 355 182 10ms 27 Dec 2024 875th The-Wolfson 355 230 111ms 16 Dec 2024 876th IoLimmer 353 183 11ms 10 Oct 2024 877th sciencejiho 350 197 2ms 11 Feb 2025 878th estomagordo 🇳🇱 348 186 11ms 15 Jul 2025 879th RobGLambert 343 273 200ms 8 Jun 2025 880th Ernest1338 341 275 276ms 26 Oct 2024 881st noahhorlacher 338 191 12ms 7 Dec 2024 882nd Inbarw100 333 207 2ms 26 days ago 883rd JOrE20 314 389 56ms 4 Dec 2025 884th snoozingnewt 🇨🇦 303 200 4ms 2 Nov 2025 885th KatieLG 🇬🇧 300 290 2,515ms 1 Oct 2025 886th gautambp 297 218 11ms 24 Jun 2025 887th kasarino 287 240 2ms 8 Feb 2026 888th KatieLG 🇬🇧 286 241 2ms 1 Oct 2025 889th Zhenyu-Bo 284 228 11ms 30 Jul 2025 890th fantaize 284 330 204ms 10 Mar 2026 891st EthanJantz 281 230 12ms 5 Sep 2025 892nd ReterikHub 280 310 215ms 17 Jan 2025 893rd Mikey-Beep 🇬🇧 277 344 17ms 10 days ago 894th RobertBurs 273 237 11ms 22 Sep 2025 895th MeWhenI 🇻🇦 272 407 119ms 6 Oct 2024 896th TJK-S 268 241 12ms 25 Oct 2025 896th NoneTheFewer 268 241 11ms 25 Dec 2025 898th nickweissert-star 266 176 289ms 2 days ago 899th kasarino 258 373 44ms 8 Feb 2026 900th te-chnical 251 258 222ms 4 May 2025 First Prev 801–900 of 943 Next Last