The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 2 days. Why not try and solve them ahead of time?
Pangram Grep 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 240th stordev 857 84 10ms 26 Feb 2021 240th face0xff 857 84 11ms 19 Oct 2021 240th EstuardoDelAngel 857 84 11ms 25 Mar 2022 240th Estuardicue 857 84 11ms 25 Mar 2022 240th ellis-rix 857 84 11ms 19 May 2023 240th ssbhatt4321 857 84 11ms 14 Oct 2023 240th 1337Nerd 857 84 12ms 20 Oct 2023 240th Bmrl7 857 84 10ms 26 Feb 2024 240th smokestacklightnin 🇺🇸 857 84 12ms 9 Jun 2024 240th jfallon1997 857 84 12ms 24 Jun 2024 240th imelxr 🇮🇱 857 84 11ms 2 Oct 2024 240th gallium-gonzollium 857 84 11ms 4 Nov 2024 240th LostSyntax21 🇬🇧 857 84 11ms 5 Jul 2025 240th RaBa21 🇭🇺 857 84 11ms 19 Jul 2025 240th FEZfan 🇦🇺 857 84 11ms 15 Oct 2025 256th CRHillman 847 85 11ms 16 Aug 2018 256th PeteAndersen 847 85 11ms 7 Jun 2019 256th TheYMI 847 85 11ms 14 Jul 2019 256th dyc3 847 85 17ms 9 Jul 2020 256th bastienvoirin 🇫🇷 847 85 11ms 28 Nov 2020 256th fynnkroeger 847 85 10ms 13 Jan 2021 256th galloj 🇨🇿 847 85 11ms 29 Jan 2021 256th schachmattmatt 847 85 11ms 11 Aug 2021 256th mauro-1 🇮🇹 847 85 13ms 18 Aug 2021 256th LeeCamp 847 85 10ms 30 Jan 2022 256th jhu04 847 85 11ms 10 Jul 2022 256th PatrickStephansen 🇿🇦 847 85 13ms 25 Aug 2022 256th JeromeSchweitzer 847 85 10ms 15 Oct 2022 256th anderium 847 85 11ms 5 Aug 2023 256th Mikey-Beep 🇬🇧 847 85 11ms 24 Aug 2023 256th AZ9tumas 847 85 11ms 19 Oct 2023 256th chartung17 847 85 11ms 1 Jan 2024 256th Europe2048 847 85 10ms 25 Nov 2024 256th TheZwierzLF 🇵🇱 847 85 10ms 22 Nov 2025 256th KatieLG-Transpiler 🇬🇧 847 85 11ms 9 Jan 2026 256th denkyuu1 847 85 10ms 5 days ago 277th evanrittner 837 86 12ms 10 Mar 2019 277th shibacho 🇯🇵 837 86 11ms 17 Apr 2019 277th sk- 837 86 11ms 18 Sep 2019 277th adoxography 837 86 11ms 28 Oct 2019 277th ian-h-chamberlain 🇺🇸 837 86 10ms 11 Dec 2019 277th toombs-caeman 837 86 11ms 8 Mar 2020 277th artieleach 837 86 11ms 8 Feb 2021 277th dymowski 837 86 18ms 14 Feb 2021 277th feherd 837 86 11ms 2 Sep 2021 277th myleopard 837 86 10ms 15 Oct 2021 277th BrenSchaap 837 86 10ms 21 Oct 2021 277th samgiz 837 86 11ms 30 Oct 2021 277th CodyMiner 837 86 11ms 25 Nov 2021 277th HallMatthew314 837 86 11ms 29 Nov 2021 277th petroselo 837 86 11ms 29 Dec 2021 277th lovernj 837 86 14ms 31 Jan 2022 277th glesnick 837 86 10ms 6 Sep 2022 277th Bodo171 837 86 11ms 21 Nov 2022 277th Re-Adventures 🇮🇳 837 86 11ms 27 Jul 2023 277th jacobly0 🇺🇸 837 86 10ms 28 Aug 2023 277th JunkIce 837 86 12ms 2 Oct 2024 277th EnviloN 🇨🇿 837 86 11ms 19 Oct 2024 277th jamesthekee 837 86 11ms 27 Jan 2025 277th YAJUE114514 837 86 12ms 19 Dec 2025 277th netfri25 🇮🇱 837 86 17ms 20 Feb 2026 277th inverseLorentz 🇦🇺 837 86 10ms 27 Feb 2026 303rd bkshrader 828 87 11ms 29 Dec 2018 303rd ly0va 828 87 11ms 3 Jan 2019 303rd decorator-factory 828 87 11ms 19 May 2019 303rd michelebastione 🇮🇹 828 87 11ms 25 Oct 2019 303rd amishtal 828 87 17ms 3 Dec 2019 303rd somebody1234 828 87 11ms 20 Jan 2020 303rd ADV1K 🇮🇳 828 87 11ms 20 Feb 2020 303rd luftj 828 87 11ms 3 May 2020 303rd OwenElliottDev 828 87 11ms 19 Jul 2020 303rd jameslindesay 828 87 10ms 18 Aug 2020 303rd xkacer 🇨🇿 828 87 13ms 27 Jan 2021 303rd richard-oelze 🇩🇪 828 87 10ms 20 Mar 2021 303rd osmith93 828 87 11ms 31 Jul 2021 303rd jdw1023 828 87 10ms 29 Apr 2022 303rd mstang107 828 87 11ms 20 Dec 2023 303rd Pale-Vessel 828 87 13ms 18 May 2024 303rd codingisgreatbutiamnot 828 87 11ms 25 Jul 2024 303rd NickTheEASDude 🇺🇸 828 87 17ms 19 Sep 2024 First Prev 241–320 of 626 Next Last