The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 days. Why not try and solve them ahead of time?
Emirp Numbers 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 558th henrytranter 496 135 18ms 20 Sep 2019 558th ethandhunt 496 135 27ms 20 Jul 2021 558th amollberg 🇸🇪 496 135 15ms 4 Jan 2022 558th vodker1 496 135 23ms 9 Mar 2022 558th sleepyStick 496 135 30ms 11 Mar 2022 558th aeonsablaze 496 135 20ms 22 Nov 2022 558th brimstonetrader 496 135 22ms 26 Dec 2023 558th tknight00 496 135 13ms 25 Jan 2024 558th HanaEndUser 496 135 12ms 25 Jan 2024 570th bretthat0 493 136 14ms 11 Nov 2017 570th yevbar 493 136 13ms 8 Apr 2018 570th coloredferrets 493 136 9ms 1 Aug 2019 570th Foxinatel 493 136 45ms 24 Jul 2021 570th Techdude01 493 136 21ms 27 Jan 2023 570th VV1Git 493 136 14ms 27 Mar 2023 576th wilkij1 489 137 85ms 17 Jun 2018 576th qrico64 489 137 31ms 2 Feb 2021 576th akshatj27 🇦🇶 489 137 12ms 11 Jan 2022 576th EthanGrant1 489 137 21ms 14 Apr 2022 576th borosilicate 489 137 70ms 9 May 2022 576th LukasFolwarczny 🇨🇿 489 137 11ms 16 Sep 2022 576th eiburns 489 137 14ms 25 Oct 2023 576th kbeat 🇰🇿 489 137 21ms 21 May 2025 584th ValNyz 486 138 20ms 20 Apr 2018 584th Pierre-Loic 486 138 19ms 23 Jun 2018 584th ionutm82 486 138 14ms 18 Dec 2018 584th usnheckler 486 138 1,062ms 8 Jun 2019 584th GodEmperorCaterpie 486 138 20ms 6 Sep 2019 584th orifu 486 138 29ms 25 Jun 2021 584th shibacho 🇯🇵 486 138 12ms 1 Nov 2022 584th Azearia 486 138 10ms 22 Jun 2023 584th Ty-Cyr 486 138 26ms 13 Jul 2023 593rd sevinon 482 139 31ms 9 Nov 2019 593rd hjcafaroUC 482 139 43ms 29 Jul 2020 593rd Higashida-Daisuke 482 139 9ms 21 Dec 2021 593rd Deedogg 482 139 10ms 9 Sep 2024 597th mkillianey 479 140 11ms 13 Oct 2018 597th qoqosz 479 140 62ms 16 Jun 2019 597th dranjohn 479 140 9ms 10 Oct 2023 597th brochmann 🇸🇪 479 140 20ms 28 Oct 2023 597th 0dyse 479 140 20ms 23 Apr 2025 602nd smeans 475 141 14ms 11 Jun 2021 602nd b4dpxl 475 141 13ms 10 Nov 2021 602nd neonchickens 475 141 18ms 27 Oct 2023 602nd GeneralFabian 475 141 12ms 14 Dec 2024 606th lukasmki 469 143 21ms 23 Jan 2019 606th thiccaxe 469 143 13ms 9 Dec 2022 606th figyel0002 469 143 10ms 7 Jan 2024 606th driri85 469 143 18ms 7 Jan 2025 606th alabhyajindal 469 143 12ms 24 Apr 2025 606th smilesformiles3 469 143 15ms 24 Sep 2025 606th TJK-S 469 143 22ms 10 Oct 2025 613th 1231234md5 🇨🇳 465 144 12ms 11 Dec 2023 613th XavierRex 465 144 10ms 23 Sep 2024 615th Deviluc 462 145 13ms 5 Jan 2018 615th wazawoo 462 145 14ms 22 Oct 2018 615th Solar-Flare 462 145 14ms 9 Nov 2018 615th raywinray 462 145 121ms 16 Nov 2018 615th Ludusamo 462 145 17ms 2 Aug 2019 615th CuboidRaptor 🇨🇦 462 145 27ms 3 Apr 2022 615th twocatsinatrenchcoat 462 145 42ms 12 May 2022 622nd naveenarun 459 146 21ms 6 Jun 2019 622nd DaCuteRaccoon 459 146 13ms 30 Dec 2022 622nd DGipe 459 146 12ms 28 Jun 2024 622nd SpiderScripts 459 146 12ms 23 Sep 2024 622nd JesseNoEyes 🇺🇸 459 146 29ms 28 Sep 2024 627th Deepztream 456 147 31ms 2 Sep 2018 627th oAsAo 456 147 13ms 20 Jan 2020 627th jaxmattfair 🇺🇸 456 147 21ms 13 Jan 2023 627th Skwerl23 456 147 21ms 5 Feb 2023 627th HenryFoss-10 456 147 13ms 1 May 2024 627th julian-hoelz 456 147 15ms 21 Sep 2024 627th jusaka 456 147 17ms 8 days ago 634th connernewman 453 148 10ms 27 Jun 2018 634th lukasmoellerch 453 148 12ms 14 Jan 2019 634th YoungjuneKwon 453 148 15ms 22 Feb 2019 634th ElevatorShaft 453 148 10ms 19 Jun 2019 634th sawall 453 148 10ms 17 Aug 2019 634th jaredcrystal 🇺🇸 453 148 9ms 29 Oct 2019 634th dim-an 453 148 9ms 9 Dec 2020 First Prev 561–640 of 813 Next Last
