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?
ASCII Table 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 387th retrohun 306 284 16ms 27 Dec 2022 387th Squidled 306 284 17ms 3 Jan 2023 387th C3P-Oops 306 284 16ms 24 Jan 2023 387th EnisEfe0 306 284 16ms 21 Feb 2023 387th UriyaBA 306 284 17ms 20 Mar 2023 387th markusgraube 306 284 19ms 14 Apr 2023 387th Gweronx 306 284 16ms 23 Apr 2023 387th Marsolo1 306 284 17ms 1 May 2023 387th vinkami 306 284 16ms 5 Jun 2023 387th Pyro569 306 284 18ms 4 Jul 2023 387th Mch47 306 284 17ms 29 Oct 2023 387th kurkale6ka 306 284 17ms 19 Nov 2023 387th HumanEquivalentUnit 306 284 16ms 25 Nov 2023 387th mstang107 306 284 16ms 20 Dec 2023 387th klixel 🇨🇦 306 284 16ms 22 Jan 2024 387th EvyGithub 306 284 16ms 27 Jan 2024 387th RJFuller 306 284 17ms 9 Feb 2024 387th Bit125 306 284 16ms 23 Feb 2024 387th alfonsoalves 306 284 17ms 27 Feb 2024 387th qwjhvbxi 306 284 16ms 5 Mar 2024 387th Pale-Vessel 306 284 17ms 7 Mar 2024 387th Jacob385 306 284 18ms 18 Apr 2024 387th VictorStenvers 🇳🇱 306 284 16ms 15 May 2024 387th codingisgreatbutiamnot 306 284 16ms 19 Jul 2024 387th AtengChen 306 284 16ms 18 Aug 2024 387th nikifkon 306 284 16ms 30 Oct 2024 387th undefinedRyan 306 284 17ms 19 Apr 2025 387th realhackcraft 306 284 18ms 3 May 2025 387th madeforlosers 306 284 16ms 8 May 2025 387th Ivanchik-cyber 306 284 17ms 28 May 2025 387th benmuth 306 284 15ms 29 Aug 2025 387th rustykitty 🇺🇸 306 284 17ms 24 Oct 2025 387th webmiche 306 284 17ms 3 Nov 2025 387th averagepythondev 306 284 17ms 2 Jan 2026 387th NicoPlayZ9002-YT 306 284 16ms 6 Jan 2026 387th mossiegoat 306 284 17ms 27 Jan 2026 437th felixcroc 305 285 17ms 17 Apr 2022 437th MichaelClasby0 🇬🇧 305 285 17ms 16 Oct 2023 437th Unknownuserfrommars 305 285 10ms 7 Oct 2024 437th calum12345 305 285 17ms 25 Mar 2025 437th jacekwladzinski 305 285 10ms 8 Oct 2025 437th LesBoys43 305 285 16ms 9 Nov 2025 443rd JKfromHMS 304 286 9ms 20 May 2024 443rd cuboids 304 286 9ms 10 Jul 2024 443rd liam824css 304 286 9ms 2 Mar 2025 446th jbrry 302 288 15ms 4 Jul 2022 446th Mewnojs 302 288 16ms 7 Mar 2024 446th kevinnaviapaiva 302 288 16ms 18 Feb 2025 449th NyuraDubu 301 289 10ms 10 Sep 2024 450th Brain-Boy-53 299 291 16ms 17 Jun 2024 451st dillon-duncando 295 295 17ms 19 Oct 2022 452nd GeneralTwi 292 298 16ms 8 Apr 2022 452nd jaxmattfair 🇺🇸 292 298 16ms 14 Jan 2023 452nd Dejgz 292 298 17ms 11 Sep 2023 455th KatieLG-Transpiler 🇬🇧 291 299 10ms 23 Jun 2022 455th b-smyers 291 299 9ms 30 Jan 2025 457th ShaneReid91 290 300 10ms 10 Dec 2022 457th Noah-Fox 290 300 9ms 24 Jan 2025 459th carlsoncorey16 277 314 16ms 29 Oct 2023 460th muser-logiccpu 🇺🇦 259 336 10ms 19 Aug 2025 461st Yareeeema 255 341 16ms 23 Sep 2022 462nd christensendaniel 254 342 10ms 15 May 2024 463rd Giridesh 249 349 10ms 6 Sep 2022 464th plainoldcheese 🇦🇶 248 351 10ms 18 Jan 2024 465th bthalheim 240 362 16ms 3 Sep 2022 466th Jonson26 238 365 16ms 13 Feb 2026 467th Frowny 229 380 17ms 27 Mar 2022 468th vektech 205 425 16ms 9 Jul 2022 469th returnitynet 204 427 10ms 2 Jan 2025 470th esnethen 201 433 17ms 20 Feb 2023 471st sayloren 186 468 16ms 26 Feb 2023 472nd Zhenyu-Bo 171 509 10ms 30 Jul 2025 473rd AidanWalter 165 528 10ms 2 Jan 2025 First Prev 401–473 of 473
