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?
Levenshtein Distance in Python in chars. 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 Chars Time Submitted 161st nullie 395 177 365ms 9 Jun 2022 161st msbranicky 395 177 193ms 27 Jul 2023 163rd mokymok 🇺🇸 393 178 12ms 23 Jul 2021 163rd face0xff 393 178 15ms 3 Nov 2021 163rd AstroOrbis 393 178 45ms 23 Jul 2025 166th MaxElf999 391 179 147ms 29 Sep 2022 167th RustemB 🇷🇺 389 180 37ms 11 Nov 2021 168th stordev 387 181 35ms 26 Feb 2021 168th PatrickStephansen 🇿🇦 387 181 20ms 15 Mar 2021 168th CLOStrophobic 🇮🇹 387 181 22ms 31 Jan 2025 171st AkashTandon167 385 182 1,702ms 15 Jan 2021 171st jtaxen 385 182 213ms 9 Apr 2024 173rd bastienvoirin 🇫🇷 383 183 35ms 30 Nov 2020 174th michelebastione 🇮🇹 380 184 31ms 5 Dec 2021 174th yuchuehw 380 184 48ms 15 Jan 2024 176th adoxography 378 185 57ms 25 Mar 2023 176th jacekwladzinski 378 185 10ms 5 Oct 2025 178th geofft 374 187 24ms 13 Dec 2020 178th mdnestor 374 187 49ms 17 Dec 2022 178th 5quiwyrm 374 187 45ms 1 Feb 2025 178th KatieLG-Transpiler 🇬🇧 374 187 113ms 9 Jan 2026 182nd qwjhvbxi 368 190 28ms 7 Feb 2024 183rd CoolBvll 365 192 10ms 12 Jun 2025 184th Matter1024 🇮🇳 359 195 10ms 10 hours ago 185th hymanimy 355 197 29ms 4 Aug 2021 185th Anonymousellama21 355 197 32ms 8 Jun 2022 187th xyangst 354 198 11ms 14 Oct 2024 188th brimstonetrader 352 199 48ms 11 Jan 2024 189th mathisfun271 348 201 31ms 5 Feb 2024 190th boxjelly 347 202 138ms 16 Feb 2021 190th j-Ewan 347 202 10ms 21 Mar 2022 192nd AtengChen 345 203 27ms 22 Aug 2024 193rd hellwue 337 208 570ms 4 Sep 2024 194th Pyroan 332 211 10ms 16 Mar 2025 195th lemogne 330 212 11ms 8 Aug 2021 196th dillon-duncando 327 214 42ms 3 Oct 2022 197th galloj 🇨🇿 326 215 156ms 1 Feb 2023 197th dranjohn 326 215 11ms 17 Sep 2023 199th mbittner20 324 216 58ms 27 May 2023 200th amollberg 🇸🇪 317 221 10ms 20 Jan 2024 201st martinnorling 🇸🇪 315 222 20ms 9 Mar 2022 201st twocatsinatrenchcoat 315 222 28ms 18 Nov 2022 201st kewegmey 315 222 32ms 21 Feb 2024 204th CedricGebistorf 314 223 10ms 5 Mar 2022 205th asadullayev 310 226 152ms 5 Mar 2021 206th lilyyy411 308 227 24ms 10 Sep 2021 207th artieleach 302 232 24ms 8 Feb 2021 207th Andrey2001 302 232 11ms 29 Jan 2026 209th shibacho 🇯🇵 299 234 10ms 25 Mar 2022 210th roelderickx 298 235 10ms 17 days ago 211th atazzam 🇺🇸 290 241 31ms 12 Feb 2023 211th Stockoh 🇫🇷 290 241 10ms 25 Apr 2024 213th adamnielson42 🇺🇸 289 242 10ms 12 Apr 2023 214th timchu 283 247 9ms 3 Mar 2021 215th alfonsoalves 282 248 76ms 27 Feb 2024 216th eiburns 273 256 11ms 7 Nov 2023 217th tomh1012 271 258 12ms 26 days ago 218th pde-bakk 🇳🇱 270 259 10ms 23 Oct 2023 219th xkacer 🇨🇿 269 260 10ms 31 Jan 2021 220th fl3ur1nestimable 263 266 26ms 3 Apr 2022 221st ethandhunt 258 271 10ms 15 Aug 2021 222nd SniperSmiley 🇺🇸 257 272 9ms 3 Jul 2022 223rd CutSandstone 253 277 10ms 3 Jul 2024 224th dylanjones92 251 279 18ms 26 Jan 2024 225th kevinnaviapaiva 248 282 18ms 12 Feb 2025 226th QuincyNash 🇺🇸 247 283 11ms 9 Nov 2022 227th FEZfan 🇦🇺 241 290 10ms 11 Jul 2025 228th Mikey-Beep 🇬🇧 238 294 17ms 22 Sep 2022 229th Bananapants22 232 302 12ms 30 Aug 2022 230th sciencejiho 222 316 10ms 26 Sep 2024 231st mothcolada 🇺🇸 216 324 10ms 11 Mar 2021 232nd Zhenyu-Bo 206 340 9ms 31 Jul 2025 233rd muser-logiccpu 🇺🇦 152 461 11ms 11 Aug 2025 234th Ripick 107 656 11ms 18 May 2023 First Prev 161–234 of 234
