The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 2 days. Why not try and solve them ahead of time?
Zodiac Signs 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 81st TobyBoyne 🇬🇧 697 198 12ms 19 Jul 2022 82nd jacekwladzinski 693 199 11ms 7 Oct 2025 83rd btjones0 690 200 12ms 15 Jul 2022 84th jakobkordez 🇸🇮 687 201 31ms 27 Oct 2022 85th retrohun 683 202 11ms 11 Nov 2025 86th luuumine 🇫🇷 667 207 14ms 9 Nov 2025 87th mrnomm 660 209 11ms 12 Aug 2022 87th olleicua 🇺🇸 660 209 19ms 7 Nov 2025 89th janbehrens 🇩🇪 654 211 21ms 17 Jun 2023 90th commandz0 🇺🇸 642 215 13ms 7 Sep 2022 90th jatloe 642 215 328ms 23 Oct 2024 90th BREMAUCY 🇫🇷 642 215 14ms 21 Aug 2025 93rd TheZwierzLF 🇵🇱 636 217 19ms 14 Dec 2025 94th celiendonze 🇨🇭 633 218 13ms 29 Mar 2023 95th aglahir1 627 220 12ms 20 Jul 2022 96th fkantelberg 622 222 14ms 21 Jul 2025 97th adamnielson42 🇺🇸 608 227 12ms 25 Apr 2023 98th abt8601 🇹🇼 592 233 20ms 15 Jul 2022 99th Pyroan 587 235 20ms 22 Jan 2026 100th amollberg 🇸🇪 575 240 24ms 10 Jan 2024 101st quimey 573 241 14ms 13 Jul 2023 102nd Bonjour27891 🇻🇳 570 242 14ms 15 Jul 2022 102nd neel11235813 570 242 14ms 16 Mar 2024 104th cros107 🇦🇺 561 246 14ms 12 Nov 2025 105th AlexanderFair 556 248 12ms 20 Jul 2023 106th wh3n3v3r 🇨🇿 554 249 13ms 14 Nov 2024 107th Babafaba 548 252 13ms 4 Nov 2025 108th jhpaques 🇫🇷 529 261 19ms 29 Jul 2022 109th MaxElf999 521 265 12ms 23 Sep 2022 109th TaserTheFox 🇺🇸 521 265 106ms 16 Mar 2023 109th codingisgreatbutiamnot 521 265 13ms 11 Jun 2025 112th jtaxen 513 269 15ms 23 Apr 2024 113th mbittner20 511 270 12ms 27 May 2023 114th roguh 🇬🇹 507 272 12ms 22 Feb 2024 115th yzhs 🇩🇪 495 279 21ms 23 Jun 2023 115th tomh1012 495 279 14ms 12 Feb 2026 117th msbranicky 486 284 18ms 19 Aug 2023 118th yuchuehw 478 289 21ms 2 Feb 2024 119th alemelis 474 291 20ms 13 Sep 2024 120th za3k 466 296 37ms 8 Oct 2022 121st CatsAreFluffy 438 315 12ms 11 Jan 2023 122nd dokutan 421 328 13ms 20 Apr 2025 123rd dillon-duncando 417 331 12ms 30 Sep 2022 123rd Florian-Mt 417 331 15ms 20 Dec 2025 125th inverseLorentz 🇦🇺 408 338 12ms 20 May 2024 126th atazzam 🇺🇸 388 356 12ms 12 Feb 2023 127th RandGuy 382 361 24ms 30 Jun 2022 128th dylanjones92 368 375 17ms 22 Jan 2024 129th Andrey2001 352 392 14ms 1 Feb 2026 130th mathisfun271 342 404 28ms 16 Feb 2024 131st HumanoidCPU 333 414 19ms 16 Nov 2025 132nd JOrE20 333 415 18ms 5 Jan 2026 133rd robin-scragg 319 433 22ms 25 Oct 2025 134th vhoulbreque 🇫🇷 295 468 14ms 17 Nov 2025 135th sleepyStick 289 478 13ms 15 Jul 2022 136th zt14427 201 687 13ms 27 Dec 2024 137th KatieLG-Transpiler 🇬🇧 191 721 24ms 2 Jul 2022 138th Ralac07 🇦🇺 149 928 27ms 25 Nov 2025 139th Schmitt-Very-Cool 131 1,055 14ms 22 Nov 2025 140th joshuamkite 124 1,116 14ms 1 Sep 2023 141st scpchicken 🇵🇼 119 1,160 16ms 22 Nov 2025 142nd Yewzir 🇧🇪 106 1,299 221ms 9 Jun 2023 143rd Zhenyu-Bo 87 1,578 13ms 1 Aug 2025 144th breakingtherabbit 52 2,669 14ms 12 Jun 2022 145th bitsandbeyond 🇳🇱 45 3,095 25ms 8 Nov 2025 146th AidanWalter 35 3,921 27ms 3 Jan 2025 First Prev 81–146 of 146
