The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 days. Why not try and solve them ahead of time?
Look and Say 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 80th Irratix 🇳🇱 804 92 15ms 25 Apr 2022 80th smartiel 804 92 11ms 18 Sep 2022 80th alexeldridge 804 92 10ms 10 Aug 2024 84th jm600 796 93 10ms 17 Apr 2022 84th Kacarott 🇦🇺 796 93 14ms 26 Sep 2023 84th minhtrancccp 796 93 20ms 11 Jan 2024 84th qpwoeirut 796 93 10ms 1 Feb 2026 88th marcin7Cd 787 94 11ms 9 Dec 2020 88th Natanaelel 🇸🇪 787 94 15ms 22 Aug 2022 88th yujh-yujh 🇬🇸 787 94 19ms 10 Dec 2025 91st jascotm 779 95 20ms 6 May 2021 92nd Just4FunCoder 771 96 15ms 26 Oct 2022 92nd FlorianCassayre 🇫🇷 771 96 11ms 23 Sep 2023 94th jacklynnepenick 763 97 13ms 22 Aug 2021 94th SimonSieber 763 97 15ms 15 Dec 2022 94th thehylian 763 97 16ms 17 Sep 2023 94th rsgray 763 97 10ms 6 Jan 2024 94th retrohun 763 97 15ms 7 Dec 2024 94th albanian-laundromat 763 97 12ms 23 Dec 2025 100th HETHAT 🇩🇿 755 98 10ms 4 Oct 2022 100th janbehrens 🇩🇪 755 98 15ms 17 Jun 2023 100th ahmetdemirag 🇨🇾 755 98 11ms 7 Oct 2024 103rd ludwig-n 747 99 10ms 5 Apr 2021 103rd gilufin 747 99 11ms 21 Jun 2021 103rd schachmattmatt 747 99 10ms 11 Aug 2021 103rd KatieLG 🇬🇧 747 99 11ms 8 Jun 2022 103rd jhpaques 🇫🇷 747 99 11ms 29 Jul 2022 103rd aksyristos 747 99 11ms 6 Feb 2023 103rd TaserTheFox 🇺🇸 747 99 11ms 8 May 2023 103rd suwat513 747 99 11ms 19 Jun 2023 103rd quimey 747 99 16ms 26 Jun 2023 103rd htareque 747 99 11ms 18 Nov 2023 103rd SB-945 747 99 10ms 23 Feb 2024 103rd RobertHoeh 747 99 11ms 2 Dec 2024 103rd andrewjc2000 747 99 10ms 28 Feb 2025 103rd cefqrn 747 99 10ms 10 Jul 2025 103rd SectorCorruptor 747 99 11ms 3 Feb 2026 118th OllieBoyne 🇬🇧 740 100 10ms 17 Sep 2021 118th face0xff 740 100 16ms 19 Oct 2021 118th pascscha 740 100 15ms 28 Mar 2022 118th osmith93 740 100 11ms 28 Jun 2022 118th fredrik-bakke 🇳🇴 740 100 11ms 5 Oct 2022 118th tri1212 🇻🇳 740 100 10ms 28 Oct 2023 118th AtengChen 740 100 11ms 31 Aug 2024 118th moustave 740 100 16ms 19 Nov 2024 118th TheZwierzLF 🇵🇱 740 100 12ms 25 May 2025 118th jtaxen 740 100 11ms 15 Oct 2025 118th JOrE20 740 100 11ms 24 Dec 2025 118th vgamula 🇺🇦 740 100 11ms 9 Feb 2026 118th solisolu 740 100 15ms 16 Feb 2026 131st ehulinsky 🇺🇸 733 101 11ms 10 Nov 2021 131st commandz0 🇺🇸 733 101 15ms 17 Nov 2023 131st hellwue 733 101 11ms 21 Jun 2024 131st hiichbindermax 733 101 11ms 21 Jun 2024 131st souta-1326 733 101 16ms 1 Apr 2025 136th AkashTandon167 725 102 11ms 2 Dec 2020 136th abba23 725 102 10ms 13 Jun 2021 136th olavaga 725 102 10ms 15 Aug 2021 136th Anonymousellama21 725 102 15ms 15 Jun 2022 136th Mikey-Beep 🇬🇧 725 102 11ms 17 Jun 2022 136th bob-th 725 102 11ms 6 Aug 2022 136th grave367 725 102 11ms 5 Mar 2023 136th msbranicky 725 102 10ms 10 Aug 2023 136th m42km 725 102 15ms 25 Nov 2023 136th eddvrs 725 102 11ms 22 Dec 2023 136th sultan 725 102 11ms 5 Mar 2024 136th Languag3 725 102 10ms 9 Oct 2024 136th KasperKivimaeki 🇫🇮 725 102 10ms 10 Jul 2025 136th LostSyntax21 🇬🇧 725 102 15ms 6 Jan 2026 150th NewDefectus 🇮🇱 718 103 13ms 18 Dec 2020 150th Indivicivet 718 103 11ms 16 Mar 2021 150th rowechenzhong 718 103 11ms 27 Nov 2021 150th CedricGebistorf 718 103 10ms 6 Mar 2022 150th trist224 🇫🇷 718 103 11ms 1 Sep 2022 150th betaveros 718 103 10ms 31 Dec 2022 150th klixel 🇨🇦 718 103 11ms 28 Mar 2025 150th Matter1024 🇮🇳 718 103 10ms 2 Jul 2025 150th redweasel 718 103 10ms 24 Jul 2025 150th RaBa21 🇭🇺 718 103 11ms 1 Aug 2025 160th ArmaanAS 712 104 15ms 26 Mar 2021 First Prev 81–160 of 414 Next Last
