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 320th MisterrLuck 527 165 10ms 3 Sep 2023 322nd CyberTapir 524 166 9ms 10 Sep 2024 322nd te-chnical 524 166 16ms 14 May 2025 324th hotmanga 521 167 10ms 26 Oct 2023 325th asterized 518 168 17ms 28 Nov 2023 325th Stockoh 🇫🇷 518 168 17ms 26 Apr 2024 325th gautambp 518 168 16ms 23 Jun 2025 325th Aquateraneal 🇺🇸 518 168 10ms 21 Nov 2025 325th JOrE20 518 168 9ms 2 Feb 2026 330th SomeKitten 🇺🇸 515 169 10ms 30 Aug 2022 330th n0es 515 169 10ms 6 Oct 2022 330th julian-hoelz 515 169 9ms 22 Sep 2024 333rd Ythaenagor 512 170 10ms 5 Aug 2024 333rd osNiko 🇧🇷 512 170 17ms 4 Aug 2025 335th eshilo-draper 509 171 11ms 12 Sep 2022 335th ffelixm 509 171 16ms 30 May 2025 335th Sharrrkkk 509 171 10ms 20 Jul 2025 335th cthierfelder 🇲🇨 509 171 9ms 31 Jul 2025 335th kasarino 509 171 10ms 31 Jan 2026 340th sacredeux 506 172 10ms 7 Aug 2024 340th pquline 506 172 17ms 4 Mar 2025 342nd eiburns 503 173 9ms 4 May 2023 342nd mjecke 503 173 16ms 3 Jul 2023 342nd Vaekor 503 173 10ms 3 Aug 2023 345th ramsay 500 174 11ms 14 Aug 2022 345th mar-moraes 500 174 9ms 1 May 2024 345th abbyonstott 500 174 9ms 2 Oct 2024 348th xbxbxb007 497 175 10ms 10 Jan 2024 349th P-Quentin 🇫🇷 494 176 9ms 9 Aug 2022 349th Fur0rem 494 176 17ms 16 Jul 2025 351st jorisbertram 489 178 10ms 26 Aug 2022 352nd PotatoSaladOverlord 486 179 10ms 15 Mar 2023 353rd OCNeve 473 184 10ms 17 Jun 2024 354th Saaxxx 470 185 10ms 30 Nov 2023 355th robin-scragg 468 186 10ms 23 Aug 2025 356th ComputerKWasTaken 🇺🇸 465 187 16ms 23 Jan 2025 357th DoubleUynn 460 189 10ms 23 Jun 2025 358th PaulBadour 458 190 10ms 29 Oct 2023 359th pythonNoobOz 453 192 10ms 21 Jun 2023 359th MichaelHorwitz 453 192 10ms 8 Sep 2023 359th resoNathan 453 192 11ms 29 Apr 2024 359th wuduculfre 453 192 9ms 28 Jul 2025 363rd DrPrettyman 448 194 11ms 4 Jul 2023 364th Bananapants22 439 198 10ms 15 Aug 2022 364th joonaspu 439 198 10ms 3 Jun 2023 364th yuchuehw 439 198 17ms 28 Jan 2024 367th Mikey-Beep 🇬🇧 437 199 10ms 28 Aug 2023 368th LukasFolwarczny 🇨🇿 435 200 16ms 17 Sep 2022 369th audrey314 429 203 10ms 29 Oct 2023 370th Player01osu 418 208 10ms 28 Oct 2023 371st atazzam 🇺🇸 410 212 10ms 1 Apr 2022 371st fenix-bear 410 212 10ms 4 Jul 2023 373rd rucin93 🇵🇱 394 221 10ms 24 Jan 2024 373rd 123mjb 394 221 10ms 25 Jun 2025 375th DukeOfSlovakia 390 223 10ms 27 Oct 2023 376th dzshn 385 226 19ms 24 Aug 2022 377th griffinschreiber 372 234 11ms 25 Jun 2023 378th eddvrs 355 245 10ms 27 Aug 2022 379th NoneTheFewer 341 255 10ms 27 Dec 2025 380th minsun-ss 325 268 9ms 29 Aug 2025 381st blueCormorant 321 271 9ms 6 Jun 2024 382nd RedzGoose 🇦🇺 309 282 16ms 10 Sep 2024 382nd HunterC14 309 282 17ms 17 Nov 2025 384th omri2001 307 283 16ms 22 Oct 2022 384th jatloe 307 283 16ms 28 Jan 2024 384th 051 🇸🇬 307 283 10ms 16 Feb 2026 387th firegene 🇮🇪 306 284 17ms 18 Apr 2022 387th Puperger 306 284 17ms 7 May 2022 387th j-Ewan 306 284 16ms 13 May 2022 387th TheSmilingTurtle 306 284 17ms 13 May 2022 387th cafehaine 🇫🇷 306 284 16ms 23 May 2022 387th bob-th 306 284 16ms 13 Jul 2022 387th sleepyStick 306 284 17ms 14 Jul 2022 387th venkatesh1220 306 284 17ms 7 Oct 2022 387th murugan-k-0204 306 284 16ms 7 Oct 2022 387th CatsAreFluffy 306 284 17ms 6 Nov 2022 387th landyrisbad 306 284 17ms 13 Nov 2022 387th KevinLyvers 306 284 16ms 13 Dec 2022 387th Tha-vivid-one 306 284 16ms 16 Dec 2022 387th GWStuart 306 284 17ms 26 Dec 2022 First Prev 321–400 of 473 Next Last
