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?
Seven Segment 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 mothcolada 🇺🇸 472 233 10ms 25 Mar 2021 320th sulphemi 472 233 9ms 15 May 2022 320th Florian-Mt 472 233 10ms 14 Jul 2024 324th Heathcorp 🇦🇺 470 234 9ms 29 Oct 2022 324th cingulataluke 470 234 10ms 30 Aug 2023 326th edre 468 235 9ms 6 May 2018 327th Peter-Lande 466 236 16ms 13 Aug 2018 327th DaleNaci 466 236 15ms 13 Aug 2018 329th vonKrafft 462 238 10ms 26 Mar 2020 329th qwjhvbxi 462 238 10ms 9 Feb 2024 331st hardlyBearable 460 239 9ms 25 May 2019 332nd HumanoidCPU 456 241 10ms 7 Aug 2024 333rd Bosenraum 453 243 10ms 3 Jan 2019 333rd Starwort 🇬🇧 453 243 11ms 30 Mar 2019 333rd amishtal 453 243 10ms 4 Dec 2019 336th wrhm 451 244 10ms 12 Dec 2020 337th pmooreh 449 245 9ms 18 Aug 2022 338th llPlayll 447 246 9ms 5 Dec 2025 339th wa1ker38552 442 249 10ms 23 May 2023 339th damoose717 442 249 9ms 25 May 2025 341st ffelixm 440 250 10ms 4 Jul 2025 342nd Sandpaper567 438 251 17ms 13 Aug 2018 342nd UriyaBA 438 251 10ms 20 Mar 2023 344th PYRiTEmonark 437 252 16ms 23 May 2021 345th fepe55 435 253 10ms 12 Oct 2018 345th midnattssol 🇸🇪 435 253 9ms 20 Aug 2023 347th Ralac07 🇦🇺 433 254 10ms 12 Jun 2024 348th eddvrs 431 255 9ms 28 Dec 2022 348th cthierfelder 🇲🇨 431 255 13ms 6 Sep 2025 350th dillon-duncando 430 256 10ms 6 Dec 2021 351st MiranDaniel 🇨🇿 425 259 9ms 1 Sep 2023 352nd joshmoody24 423 260 11ms 5 Mar 2022 352nd TheCod-r 🇦🇶 423 260 10ms 29 Sep 2022 352nd brimstonetrader 423 260 10ms 4 Feb 2024 352nd codingisgreatbutiamnot 423 260 10ms 14 Aug 2024 356th clayboll99 421 261 10ms 14 Jul 2025 357th adoxography 420 262 9ms 10 Oct 2019 357th AlexanderFair 420 262 9ms 26 Jul 2023 359th hthurdev 418 263 11ms 4 May 2025 360th xbxbxb007 415 265 10ms 19 Jan 2024 360th Voltrifrodec 🇸🇰 415 265 10ms 28 Apr 2025 362nd SniperSmiley 🇺🇸 412 267 10ms 24 Jun 2022 362nd avivex1000 412 267 9ms 17 Aug 2025 364th luuumine 🇫🇷 410 268 9ms 17 Oct 2025 365th badouralix 407 270 10ms 27 Feb 2021 365th mbittner20 407 270 10ms 13 Oct 2024 367th Bananapants22 406 271 10ms 17 Aug 2022 368th qalle2 404 272 9ms 20 Apr 2019 368th glesnick 404 272 10ms 6 Sep 2022 370th achow0 403 273 10ms 23 Oct 2020 370th JorenZ 403 273 9ms 10 Oct 2021 372nd kenny14231 401 274 16ms 17 Aug 2022 372nd yashima 401 274 9ms 11 Nov 2024 374th Andrey2001 400 275 10ms 13 Dec 2025 375th reedwilemon 399 276 10ms 15 Jun 2020 376th bor3ham 394 279 17ms 26 Apr 2019 377th jgermain48 393 280 10ms 29 Dec 2019 378th kpasc 391 281 10ms 23 Apr 2020 379th leon-w 387 284 10ms 4 Jan 2019 380th ljmccarthy 385 286 10ms 23 Jun 2022 381st yuchuehw 378 291 16ms 1 Jan 2024 382nd osNiko 🇧🇷 377 292 31ms 24 Dec 2025 383rd yklim 375 293 10ms 6 Apr 2019 383rd kenballus 375 293 10ms 16 May 2020 385th estomagordo 🇳🇱 373 295 10ms 3 Aug 2019 386th Sticky-Bits 372 296 10ms 26 Apr 2019 386th atazzam 🇺🇸 372 296 10ms 28 Mar 2022 388th mikaelivarsson 370 297 10ms 29 Aug 2019 388th CRHillman 370 297 10ms 15 Sep 2020 390th Mojken 369 298 16ms 2 Sep 2018 391st Razzula 365 301 10ms 3 Oct 2023 392nd sli-Lut 362 304 9ms 12 Oct 2023 393rd ComputerKWasTaken 🇺🇸 361 305 9ms 8 Jun 2024 394th dddthedark 359 306 10ms 3 Nov 2020 395th sciencejiho 357 308 10ms 24 Apr 2024 396th jlevis10 354 311 10ms 12 Oct 2023 397th n0es 349 315 9ms 12 Oct 2022 398th jalbertgordon 343 321 10ms 23 Oct 2023 399th raymur 341 323 10ms 28 Jun 2025 400th CodyMiner 336 327 10ms 26 Nov 2021 First Prev 321–400 of 429 Next Last
