The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 6 days. Why not try and solve them ahead of time?
Foo Fizz Buzz Bar in Python 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 721st Lemonz-13223 593 140 11ms 12 May 2022 721st StoverGitHub 593 140 11ms 15 Jun 2022 721st NerdyMcNerd42 593 140 11ms 13 Aug 2022 721st Rythoka 593 140 11ms 17 Oct 2022 721st SkydivingSquid 593 140 10ms 29 Nov 2022 721st Pyro569 593 140 12ms 4 Jul 2023 721st tknight00 593 140 15ms 5 Mar 2024 728th confy 589 141 11ms 28 Dec 2021 728th doppelar0n 🇩🇪 589 141 12ms 2 Oct 2022 728th desecaw13 589 141 11ms 24 Jan 2025 731st estomagordo 🇳🇱 585 142 12ms 9 Dec 2021 731st Armangharleghi1999 585 142 12ms 25 May 2022 731st roylucas 585 142 11ms 18 Jan 2023 731st sciencedjinn 585 142 11ms 8 Nov 2024 735th 201170 580 143 12ms 22 Aug 2022 735th Darknova2468 580 143 12ms 20 Nov 2022 735th N25CT13 580 143 12ms 20 Nov 2022 735th willdaspit 580 143 12ms 7 Aug 2023 739th arinhyther 576 144 12ms 19 Jan 2023 739th hidude562 576 144 11ms 1 Jul 2023 739th ggmartin32 576 144 12ms 18 May 2024 742nd jamespeilunli 572 145 18ms 20 Mar 2022 742nd SaberSwordBoy 572 145 11ms 23 Apr 2022 742nd PeterDekkers 572 145 12ms 7 Aug 2022 742nd JackieAlacrity2373 572 145 12ms 12 Feb 2025 742nd katss2 572 145 11ms 17 Aug 2025 747th Ole-Magnus-Hoi 568 146 11ms 12 Sep 2023 747th therealnumbers 568 146 11ms 17 Nov 2023 747th Neon-MT 568 146 12ms 18 Sep 2025 750th blankschyn 565 147 11ms 28 Dec 2021 750th Anthony-Williams-06 565 147 12ms 15 Nov 2022 750th enbyte 565 147 11ms 1 May 2023 750th quarl 565 147 12ms 12 Nov 2024 754th infinityTheorist 561 148 11ms 28 Jan 2024 755th CubingBadWolf 557 149 18ms 27 Feb 2022 755th Sharrrkkk 557 149 12ms 20 Jul 2025 757th ztaggart 553 150 11ms 5 Jan 2022 757th reni-hristova 553 150 11ms 28 Jan 2022 757th drewhead118 553 150 11ms 29 May 2022 757th DrPrettyman 553 150 11ms 23 Oct 2023 757th therandompersonn 553 150 10ms 28 Sep 2024 757th gelvetica 553 150 12ms 17 Nov 2024 763rd BrysonHamlin 🇺🇸 550 151 12ms 2 Feb 2022 763rd borosilicate 550 151 23ms 7 Apr 2022 763rd HaiPaul 550 151 11ms 4 Mar 2024 766th rohith-kola 546 152 11ms 4 Oct 2024 767th Brain-Boy-53 539 154 11ms 17 Jun 2024 768th remijn 532 156 11ms 21 Mar 2023 768th dscarulla 532 156 11ms 11 Oct 2023 770th Sturla22 529 157 17ms 1 Apr 2022 770th haettead 529 157 10ms 19 Sep 2024 772nd wvansolk 522 159 11ms 4 Oct 2023 772nd joshua-el-samalouti 🇩🇪 522 159 11ms 26 May 2024 772nd theonetruenerd 522 159 11ms 15 Aug 2024 775th RasmusBV 519 160 12ms 9 May 2022 775th pharmony01 519 160 11ms 24 Sep 2022 777th CllsPy 516 161 11ms 7 May 2024 778th katharine67 512 162 12ms 8 Oct 2022 779th zt14427 509 163 13ms 28 Feb 2023 779th kellantech 509 163 93ms 18 Jun 2023 779th Gusic06 509 163 18ms 13 Mar 2024 782nd M053b 506 164 11ms 12 Sep 2022 782nd brendantuckerman 506 164 11ms 19 Oct 2022 782nd jmmographer 506 164 11ms 20 Oct 2023 785th contrick64 503 165 11ms 29 Mar 2024 786th pecholsjones 500 166 11ms 8 Dec 2021 786th Tagfox 500 166 11ms 16 Jul 2022 788th Bit125 497 167 12ms 28 Mar 2024 789th josephabbey 494 168 17ms 6 Apr 2022 790th joeybranch 491 169 12ms 11 May 2024 791st Mr-McChicken 488 170 13ms 4 Oct 2025 792nd Ayushft 480 173 11ms 7 Dec 2021 792nd Crabbex 480 173 11ms 14 Aug 2025 792nd NoneTheFewer 480 173 11ms 25 Dec 2025 795th tterem 477 174 13ms 7 Jun 2022 796th Great-Gamer 474 175 12ms 24 Feb 2022 796th tmanternach 474 175 11ms 22 Nov 2022 798th a-penton 472 176 12ms 22 Sep 2022 798th LookAgain2 472 176 11ms 20 Dec 2022 798th OneAsterisk 472 176 12ms 27 Oct 2023 First Prev 721–800 of 878 Next Last
