The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 24 hours. Why not try and solve them ahead of time?
Foo Fizz Buzz Bar 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 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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 Bytes Time Submitted 301st mauroplg 🇮🇹 962 84 10ms 12 Sep 2024 301st edsrzf 🇳🇿 962 84 12ms 20 Sep 2024 301st shanginn 962 84 10ms 5 Oct 2024 301st w911 962 84 10ms 8 Oct 2024 301st targrik 962 84 11ms 10 Oct 2024 301st nnchutchikov 962 84 11ms 23 Oct 2024 301st fuzzylojik-golf 🇺🇸 962 84 11ms 29 May 2025 301st CaedenHarper 🇨🇦 962 84 11ms 23 Jul 2025 301st BREMAUCY 🇫🇷 962 84 11ms 25 Jul 2025 301st snoozingnewt 🇨🇦 962 84 11ms 7 Oct 2025 331st rhdqor213 962 101 192ms 18 Apr 2025 332nd Lydxn 🇨🇦 961 74 334ms 8 Mar 2023 332nd HPWiz 🇳🇿 961 74 318ms 24 Mar 2023 334th NicolasBn 🇫🇷 958 73 270ms 7 Jan 2022 334th sultan 958 73 272ms 14 Apr 2022 334th okhoel 🇳🇴 958 73 279ms 19 Sep 2022 334th KevinMarquette 🇺🇸 958 73 239ms 17 Apr 2023 334th gubadam 958 73 275ms 7 Nov 2023 339th SirBogman 🇺🇸 958 81 388ms 15 Jan 2024 339th GrayJoKing 🇦🇺 958 81 379ms 15 Jan 2024 339th ovs-code 🇩🇪 958 81 441ms 16 Jan 2024 339th Steffan153 🇫🇮 958 81 427ms 16 Jan 2024 339th Lydxn 🇨🇦 958 81 385ms 16 Jan 2024 339th kg583 🇺🇸 958 81 445ms 16 Jan 2024 339th sisyphus-ppcg 🇦🇺 958 81 389ms 16 Jan 2024 339th DialFrost 🇸🇬 958 81 478ms 16 Jan 2024 339th sean-niemann 🇺🇸 958 81 447ms 17 Jan 2024 339th JayXon 🇺🇸 958 81 401ms 18 Jan 2024 339th m-tkach 🇺🇦 958 81 397ms 21 Jan 2024 339th AlephSquirrel 958 81 475ms 21 Jan 2024 339th rucin93 🇵🇱 958 81 386ms 21 Jan 2024 339th orthoplex 🇨🇽 958 81 405ms 22 Jan 2024 339th xsot 🇸🇬 958 81 444ms 25 Jan 2024 339th Yewzir 🇧🇪 958 81 433ms 4 Feb 2024 339th Shanethegamer 🇺🇸 958 81 445ms 24 Mar 2024 339th duckyluuk 🇳🇱 958 81 460ms 27 Mar 2024 339th MeWhenI 🇻🇦 958 81 434ms 24 May 2024 339th pardouin 🇫🇷 958 81 471ms 21 Jun 2024 339th bizy-coder 958 81 465ms 29 Jun 2024 339th emgordon154 958 81 378ms 8 Aug 2024 339th b-illy 🇬🇧 958 81 436ms 7 Sep 2024 339th CaedenHarper 🇨🇦 958 81 428ms 19 Sep 2024 339th fuzzylojik-golf 🇺🇸 958 81 453ms 13 Jun 2025 339th GolfingSuccess 🇬🇷 958 81 447ms 5 Sep 2025 339th CornerMercury 🇬🇧 958 81 495ms 12 Oct 2025 339th Babafaba 958 81 410ms 4 Nov 2025 367th sean-niemann 🇺🇸 957 130 501ms 26 Sep 2025 367th DialFrost 🇸🇬 957 130 530ms 25 Nov 2025 367th Lydxn 🇨🇦 957 130 477ms 12 Dec 2025 367th Steffan153 🇫🇮 957 130 386ms 11 Feb 2026 371st Steffan153 🇫🇮 955 69 4ms 11 Aug 2024 371st DialFrost 🇸🇬 955 69 4ms 12 Aug 2024 371st xsot 🇸🇬 955 69 4ms 12 Aug 2024 371st MeWhenI 🇻🇦 955 69 4ms 12 Aug 2024 371st Shanethegamer 🇺🇸 955 69 4ms 12 Aug 2024 371st btnlq 955 69 4ms 14 Aug 2024 371st ovs-code 🇩🇪 955 69 4ms 15 Aug 2024 371st pardouin 🇫🇷 955 69 4ms 17 Aug 2024 371st GolfingSuccess 🇬🇷 955 69 4ms 17 Aug 2024 371st GrayJoKing 🇦🇺 955 69 4ms 19 Aug 2024 371st SirBogman 🇺🇸 955 69 4ms 20 Aug 2024 371st sean-niemann 🇺🇸 955 69 5ms 11 Oct 2024 371st emgordon154 955 69 4ms 12 May 2025 371st snoozingnewt 🇨🇦 955 69 4ms 7 Oct 2025 385th tr0mb0n3man 952 86 11ms 6 Dec 2021 385th Trunksistor 🇫🇷 952 86 11ms 21 Apr 2022 385th Mikey-Beep 🇬🇧 952 86 12ms 30 Jun 2022 385th bwenstar 952 86 12ms 11 Aug 2022 385th nstearns96 🇬🇧 952 86 11ms 27 Oct 2022 385th jakobkordez 🇸🇮 952 86 11ms 29 Nov 2022 385th CodeAltF4 952 86 11ms 14 Mar 2023 385th musicallyanna 952 86 11ms 3 Apr 2023 385th jhu04 952 86 11ms 26 Apr 2023 385th ritwinnarra 952 86 11ms 11 Jun 2023 385th rollershutter 952 86 10ms 1 Jul 2023 385th saladleaf 952 86 11ms 24 Jul 2023 385th tobeannouncd 952 86 39ms 19 Sep 2023 385th wen1now 952 86 12ms 6 Nov 2023 385th janeclange 952 86 11ms 13 Nov 2023 385th MrAleborg 952 86 11ms 19 Nov 2023 First Prev 321–400 of 3,484 Next Last
