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 240th twocatsinatrenchcoat 550 200 9ms 5 Jun 2022 242nd ArturLange 547 201 9ms 12 Sep 2018 242nd Omega65536 🇩🇪 547 201 10ms 7 Jan 2021 242nd RDShah 547 201 9ms 11 May 2022 242nd aalec 547 201 9ms 25 Apr 2024 246th djtuBIG-MaliceX 545 202 10ms 30 Jan 2018 246th michelebastione 🇮🇹 545 202 10ms 19 Feb 2020 248th denkyuu1 542 203 10ms 2 Feb 2026 249th simon-thornton_pace 539 204 9ms 26 Jan 2024 249th R4z0rX 539 204 10ms 21 Aug 2024 249th vhoulbreque 🇫🇷 539 204 10ms 3 Dec 2025 252nd jrdallen97 537 205 10ms 4 Oct 2017 252nd timchu 537 205 10ms 4 Mar 2021 252nd amollberg 🇸🇪 537 205 9ms 25 Jan 2022 252nd NerdyMcNerd42 537 205 9ms 11 Jun 2023 252nd ThijsLuttikhuis 537 205 10ms 3 Mar 2024 252nd julian-hoelz 537 205 9ms 22 Sep 2024 258th AIn0n 534 206 9ms 27 Aug 2021 258th r-benson 🇬🇧 534 206 10ms 1 Feb 2023 258th celiendonze 🇨🇭 534 206 10ms 16 Apr 2023 261st HumanEquivalentUnit 531 207 17ms 30 Dec 2021 261st robin-scragg 531 207 10ms 18 Jun 2025 261st nemoyatpeace 531 207 10ms 19 Jan 2026 264th loserface69 529 208 10ms 23 Jan 2021 264th LlamaLad7 🇬🇧 529 208 10ms 23 Jan 2021 266th alangodfrey 526 209 9ms 18 Feb 2019 267th bbakersmith 524 210 10ms 14 Jul 2021 267th cubed-guy 524 210 10ms 17 Oct 2021 269th nstearns96 🇬🇧 521 211 10ms 18 Jan 2023 270th vishwathg 519 212 10ms 16 Sep 2022 270th JunkIce 519 212 9ms 9 Mar 2025 270th LostSyntax21 🇬🇧 519 212 10ms 30 Nov 2025 273rd Vaekor 516 213 10ms 16 Nov 2020 273rd btjones0 516 213 10ms 7 Dec 2021 273rd MaxElf999 516 213 10ms 30 Sep 2022 273rd eiburns 516 213 9ms 21 Jan 2023 273rd chartung17 516 213 9ms 24 Mar 2025 278th caerbannogwhite 514 214 10ms 14 Apr 2018 278th ellis-rix 514 214 10ms 25 Feb 2022 278th RandGuy 514 214 10ms 2 Apr 2022 278th RaBa21 🇭🇺 514 214 10ms 19 Jul 2025 282nd orifu 512 215 16ms 19 Mar 2021 282nd ethandhunt 512 215 29ms 16 Aug 2021 284th decorator-factory 509 216 10ms 16 Jun 2019 284th argusdusty 🇺🇸 509 216 10ms 2 Jan 2021 284th schachmattmatt 509 216 10ms 3 Oct 2021 284th galloj 🇨🇿 509 216 16ms 31 Aug 2022 284th firegene 🇮🇪 509 216 10ms 13 Apr 2024 289th SimonPeatman 507 217 10ms 29 Dec 2018 289th mrmena 🇦🇺 507 217 10ms 29 May 2021 289th jfallon1997 507 217 10ms 7 Sep 2022 289th zt14427 507 217 10ms 18 Nov 2023 293rd bsoyka 🇺🇸 505 218 10ms 16 Jul 2022 293rd gXLg 🇩🇪 505 218 10ms 19 Sep 2023 295th markus-rekdal 502 219 9ms 4 Jun 2019 295th andre-lameirinhas 🇵🇹 502 219 17ms 15 Jan 2020 295th aksyristos 502 219 10ms 20 Jan 2023 298th richard-oelze 🇩🇪 500 220 16ms 12 Sep 2021 299th AkashTandon167 498 221 12ms 11 Jan 2021 300th sciencedjinn 495 222 10ms 8 Nov 2024 301st Visckmart 493 223 10ms 23 Jul 2018 301st sambirnbaum1 493 223 10ms 11 Oct 2019 301st Anonymousellama21 493 223 10ms 16 May 2024 301st muser-logiccpu 🇺🇦 493 223 9ms 9 Aug 2025 305th trist224 🇫🇷 491 224 10ms 28 Nov 2022 305th zwxzwxzwx21 491 224 9ms 30 Jan 2024 305th CyberTapir 491 224 10ms 28 Aug 2024 308th Trunksistor 🇫🇷 489 225 10ms 26 Apr 2022 309th TimHuisman1703 487 226 10ms 7 Jan 2022 309th j-Ewan 487 226 10ms 14 Feb 2022 309th htprogras 487 226 9ms 15 May 2022 309th johndixon01 487 226 10ms 22 Sep 2022 309th Mikey-Beep 🇬🇧 487 226 10ms 1 Jun 2024 314th slopey112 485 227 10ms 11 Nov 2020 315th hellwue 482 228 10ms 4 Sep 2024 316th DarkTemplar5 478 230 10ms 2 Mar 2020 316th TheYMI 478 230 10ms 20 May 2020 316th myleopard 478 230 10ms 13 Oct 2021 316th DoubleUynn 478 230 10ms 24 Jun 2025 320th stordev 472 233 10ms 26 Feb 2021 First Prev 241–320 of 429 Next Last
