The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 3 days. Why not try and solve them ahead of time?
Star Wars GPT in all languages 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 240th bzijlema 🇳🇱 629 126 31ms 25 Oct 2025 242nd stefangimmillaro 628 192 471ms 3 May 2025 243rd AlephSquirrel 628 218 24ms 14 May 2025 244th snyderek 🇺🇸 624 326 3,193ms 26 May 2025 245th edsrzf 🇳🇿 623 243 68ms 19 Jun 2025 246th targrik 621 148 13ms 30 Apr 2025 246th LordSir101 621 148 12ms 1 Aug 2025 246th Zounon 621 148 13ms 3 Aug 2025 249th voytxt 🇨🇿 617 149 12ms 2 May 2025 250th Shanethegamer 🇺🇸 602 165 148ms 18 Apr 2025 251st alexsave 601 153 15ms 2 Dec 2025 252nd AlephSquirrel 598 125 534ms 1 May 2025 252nd SirBogman 🇺🇸 598 125 533ms 23 Jul 2025 254th edsrzf 🇳🇿 595 133 11ms 28 Apr 2025 254th SirBogman 🇺🇸 595 133 11ms 28 Apr 2025 254th DialFrost 🇸🇬 595 133 11ms 2 May 2025 257th rucin93 🇵🇱 587 127 178ms 10 May 2025 258th souta-1326 587 135 11ms 28 Apr 2025 258th KasperKivimaeki 🇫🇮 587 135 12ms 24 Oct 2025 260th Shanethegamer 🇺🇸 582 158 13ms 5 May 2025 260th zakariamouhid 582 158 11ms 8 May 2025 262nd MeWhenI 🇻🇦 580 221 4,663ms 29 Apr 2025 263rd h3ra993huskp 🇯🇵 580 304 683ms 30 Nov 2025 264th madex 🇩🇪 578 137 11ms 30 Apr 2025 265th Shanethegamer 🇺🇸 575 130 560ms 18 Apr 2025 266th madex 🇩🇪 575 344 2ms 1 May 2025 267th JOrE20 574 160 12ms 5 Feb 2026 268th Shanethegamer 🇺🇸 570 139 14ms 18 Apr 2025 268th hiichbindermax 570 139 11ms 22 May 2025 270th Mabeloid 🇳🇴 566 140 11ms 4 May 2025 270th annaproxy 566 140 68ms 9 May 2025 272nd Haksell 🇦🇶 554 143 35ms 4 May 2025 272nd cefqrn 554 143 12ms 10 Jul 2025 272nd adoxography 554 143 11ms 1 Sep 2025 272nd Lv0Sys 🇵🇱 554 143 18ms 21 Feb 2026 276th stefangimmillaro 550 167 12ms 28 Apr 2025 276th acollett89 550 167 11ms 4 Aug 2025 278th albanian-laundromat 548 323 139ms 2 Dec 2025 279th Artemis21 🇬🇧 546 145 37ms 22 May 2025 279th FlorianCassayre 🇫🇷 546 145 12ms 5 Aug 2025 279th HPWiz 🇳🇿 546 145 36ms 20 Dec 2025 282nd moustave 539 147 11ms 20 May 2025 283rd Shanethegamer 🇺🇸 538 105 42ms 23 Mar 2025 284th Mabeloid 🇳🇴 534 140 579ms 4 May 2025 285th retrohun 534 185 382ms 10 May 2025 286th emgordon154 530 232 121ms 5 May 2025 287th aliakseikalosha 529 228 497ms 25 Jul 2025 288th SirBogman 🇺🇸 518 120 166ms 12 Jul 2025 289th BambooleanLogic 🇸🇪 516 178 11ms 6 May 2025 290th InigoK 🇺🇸 514 154 35ms 6 Sep 2025 290th YAJUE114514 514 154 11ms 10 Dec 2025 292nd meenie 500 184 16ms 18 May 2025 293rd MeWhenI 🇻🇦 500 241 484ms 11 Jul 2025 294th CaedenHarper 🇨🇦 498 159 12ms 29 Jul 2025 295th CaedenHarper 🇨🇦 497 355 581ms 6 Oct 2025 296th OllieBoyne 🇬🇧 495 160 71ms 19 May 2025 296th BREMAUCY 🇫🇷 495 160 15ms 25 Aug 2025 298th CaedenHarper 🇨🇦 494 186 12ms 29 Aug 2025 299th tobeannouncd 492 161 12ms 12 May 2025 300th albanian-laundromat 490 330 1,399ms 11 days ago 301st cros107 🇦🇺 486 163 12ms 3 Jun 2025 302nd CaedenHarper 🇨🇦 485 154 535ms 29 Jul 2025 303rd snoozingnewt 🇨🇦 479 192 18ms 9 Oct 2025 304th janAkali 🇷🇺 478 270 449ms 3 days ago 305th ahmetdemirag 🇨🇾 477 166 13ms 13 May 2025 306th iczelia 🇩🇪 476 193 15ms 26 Sep 2025 307th TomvdPeet 470 232 7ms 1 Dec 2025 308th madex 🇩🇪 463 122 43ms 1 May 2025 309th scpchicken 🇵🇼 463 171 11ms 1 May 2025 310th guilhem-roy 🇫🇷 460 172 43ms 29 May 2025 311th Pyroan 455 174 11ms 7 May 2025 311th Mikey-Beep 🇬🇧 455 174 12ms 25 Jul 2025 313th tomh1012 455 265 451ms 14 Nov 2025 314th andrewjc2000 445 178 15ms 13 Jun 2025 315th dokutan 442 179 24ms 15 Jun 2025 316th vhoulbreque 🇫🇷 438 181 12ms 1 May 2025 317th weliveinhell 🇭🇹 432 213 12ms 14 Jun 2025 318th dijs 428 215 12ms 29 Apr 2025 319th prestosilver 🇺🇸 426 303 416ms 3 days ago 320th CaedenHarper 🇨🇦 424 175 1,511ms 2 Oct 2025 First Prev 241–320 of 363 Next Last