Card Number Validation in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 751st c0d3-4-F00d 🇩🇪 381 184 2ms 9 Jan 2025 752nd CheeseCake628 🇳🇴 380 151 453ms 18 Oct 2025 753rd zyc-2024 🇨🇳 380 170 10ms 5 Oct 2024 754th snoozingnewt 🇺🇸 379 286 41ms 18 days ago 755th ComputerKWasTaken 🇺🇸 378 171 9ms 14 Oct 2024 756th snoozingnewt 🇺🇸 376 267 13ms 18 days ago 757th KatieLG 🇬🇧 375 218 112ms 88 mins ago 758th navier-1 373 173 10ms 22 Sep 2025 759th snoozingnewt 🇺🇸 372 313 45ms 18 days ago 760th RobGLambert 370 232 915ms 8 Jun 2025 761st RedzGoose 🇦🇺 369 187 104ms 2 Oct 2024 762nd P1nk-P0nk 369 215 3ms 18 Oct 2024 763rd clayboll99 367 176 11ms 10 Jul 2025 764th Upload-and-View 🇺🇦 365 177 16ms 9 Aug 2025 765th OSYCh314 🇦🇺 363 178 11ms 2 Nov 2024 766th calum12345 359 180 10ms 26 Mar 2025 767th sciencejiho 356 197 2ms 11 Feb 2025 768th zt14427 355 182 11ms 27 Dec 2024 769th The-Wolfson 355 230 102ms 16 Dec 2024 770th IoLimmer 353 183 11ms 10 Oct 2024 771st aksyristos 351 184 16ms 15 Nov 2024 772nd estomagordo 🇳🇱 347 186 10ms 15 Jul 2025 773rd RobGLambert 341 273 200ms 8 Jun 2025 774th Ernest1338 339 275 275ms 26 Oct 2024 775th noahhorlacher 337 191 10ms 7 Dec 2024 776th snoozingnewt 🇺🇸 303 200 3ms 18 days ago 777th gautambp 296 218 10ms 24 Jun 2025 778th KatieLG 🇬🇧 296 290 1,806ms 1 Oct 2025 779th KatieLG 🇬🇧 291 241 2ms 1 Oct 2025 780th Zhenyu-Bo 283 228 14ms 30 Jul 2025 781st EthanJantz 281 230 10ms 5 Sep 2025 782nd ReterikHub 277 310 205ms 17 Jan 2025 783rd Mikey-Beep 🇬🇧 273 349 25ms 12 Aug 2025 784th RobertBurs 272 237 10ms 22 Sep 2025 785th MeWhenI 🇻🇦 271 407 132ms 6 Oct 2024 786th TJK-S 268 241 9ms 27 days ago 787th te-chnical 250 258 193ms 4 May 2025 788th arebbsba 218 296 12ms 9 Jan 2025 789th Msleizak 🇫🇷 206 226 243ms 19 May 2025 790th AidanWalter 120 540 9ms 1 Jan 2025 791st vkptimon 120 776 307ms 9 Jul 2025 792nd bignamehyp 97 667 9ms 14 Nov 2024 793rd dokutan 60 2,474 124ms 18 Aug 2025 794th iczelia 🇩🇪 52 2,045 4ms 14 Oct 2025 795th lyphyser 0 15 80ms 25 May 2025 796th 2bular 0 16 76ms 22 Mar 2025 796th namelessiw 0 16 141ms 2 days ago 798th darrenks 0 17 78ms 22 Mar 2025 799th Natanaelel 🇸🇪 0 18 74ms 23 Mar 2025 799th lyxal 🇦🇺 0 18 498ms 17 May 2025 799th themoonisacheese 0 18 484ms 13 Jun 2025 802nd kg583 🇺🇸 0 20 272ms 14 May 2025 803rd plcc0 0 21 99ms 4 Apr 2025 804th ovs-code 🇩🇪 0 37 3ms 13 Jul 2025 805th maweowo 🇩🇪 0 39 4ms 2 Oct 2025 806th ovs-code 🇩🇪 0 40 4ms 9 Jul 2025 807th AlephSquirrel 0 43 3ms 15 Jun 2025 808th evnu 0 44 4ms 12 Oct 2025 809th ovs-code 🇩🇪 0 51 16ms 13 Jun 2025 810th GrayJoKing 🇦🇺 0 55 3ms 13 Jul 2025 811th chunes3 🇺🇸 0 65 6ms 13 Feb 2025 811th DialFrost 🇸🇬 0 65 11ms 13 Feb 2025 813th sean-niemann 🇺🇸 0 68 75ms 30 Apr 2025 814th dokutan 0 89 65ms 28 Jun 2025 815th MatthewF19 0 108 119ms 17 May 2025 816th albanian-laundromat 0 123 2ms 4 Jun 2025 817th edsrzf 🇳🇿 0 142 216ms 24 Jul 2025 First Prev 751–817 of 817
