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?
Arrows in JavaScript 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 79th madeforlosers 607 140 12ms 5 Mar 2025 82nd Michiocre 590 144 13ms 20 Feb 2024 83rd MiffOttah 586 145 14ms 6 Oct 2024 84th tomh1012 567 150 14ms 23 Aug 2021 84th JTH1999 567 150 13ms 11 Apr 2023 86th johanrosenson 563 151 15ms 8 Dec 2021 87th LukeBridges 🇬🇧 559 152 16ms 11 Apr 2024 88th Florian-Mt 552 154 14ms 9 Jul 2024 89th Giga-Bowser 548 155 15ms 6 Jan 2022 89th smclaughlin-cf 548 155 13ms 6 May 2025 91st Ephellon 541 157 13ms 16 Dec 2023 92nd FrederikHutfless 🇩🇪 525 162 15ms 12 Jan 2023 92nd BambooleanLogic 🇸🇪 525 162 13ms 19 Oct 2023 94th lewdev 🇺🇸 521 163 13ms 14 Mar 2024 94th ComradeSquirrel 521 163 16ms 2 hours ago 96th trinityy-7 497 171 14ms 17 Jul 2023 97th con-cs 491 173 12ms 17 Oct 2021 97th Larento 491 173 16ms 14 Oct 2023 99th KingSkyrock 🇺🇸 489 174 15ms 16 Feb 2022 100th adamnielson42 🇺🇸 483 176 14ms 30 May 2023 101st ollyspooner 480 177 17ms 25 Nov 2022 101st Re-Adventures 🇮🇳 480 177 15ms 17 Dec 2023 101st hacker112 🇸🇪 480 177 14ms 19 Jun 2024 104th Salutations45 478 178 13ms 21 Dec 2024 105th null-tangent 475 179 15ms 23 Aug 2022 106th dylanpyle 472 180 12ms 24 Mar 2022 106th MyltsinVV 472 180 15ms 27 Nov 2025 108th veiko 470 181 14ms 20 Jun 2022 109th alexsave 427 199 17ms 16 Oct 2025 110th samthidny 419 203 13ms 26 Apr 2022 111th ereztaiar 🇮🇱 405 210 14ms 11 Sep 2021 112th stephanie-flower 401 212 12ms 6 Nov 2025 113th eiburns 399 213 15ms 24 Feb 2023 113th Vaekor 399 213 17ms 9 Jul 2023 115th IchBinMichMarkus 379 224 15ms 1 Jul 2024 116th strattonwhisler 370 230 13ms 7 May 2025 117th Tenclea 356 239 15ms 24 Aug 2023 118th gigaprofisi 🇺🇸 353 241 13ms 20 Jun 2025 119th dokutan 351 242 14ms 29 Mar 2025 120th carlmrichter 🇩🇪 340 250 15ms 22 Jun 2024 121st fitzdotlol 🇺🇸 337 252 17ms 17 Apr 2022 122nd iczelia 🇩🇪 331 257 15ms 14 Oct 2025 123rd florton 326 261 15ms 29 Jan 2022 124th JohnSBarden 324 262 16ms 23 Sep 2022 125th R4z0rX 323 263 13ms 27 Aug 2024 126th joakim-ronning 317 268 18ms 25 May 2023 127th yuranebykov 311 273 12ms 29 Jan 2024 128th jackkav 307 277 18ms 5 Jan 2022 129th mcculloughjchris 251 339 15ms 16 Dec 2022 130th Ranner198 233 365 13ms 13 Jun 2024 131st Ashikpaul 🇮🇳 222 383 18ms 13 Oct 2024 132nd apokryfos 215 396 15ms 19 Aug 2023 132nd xyangst 215 396 17ms 12 Oct 2024 134th hacker19374 209 406 14ms 13 Mar 2023 135th avavuvu 209 407 12ms 22 Jun 2025 136th KaleChips22 200 424 16ms 21 Jul 2025 137th 7f-galaxii 198 429 14ms 6 Dec 2022 138th noahhorlacher 197 432 12ms 5 Aug 2024 139th MyXoToD 🇩🇪 196 433 16ms 7 May 2025 140th KatieLG-Transpiler 🇬🇧 167 508 16ms 25 Jun 2022 141st kordrun 136 623 13ms 4 Apr 2024 142nd 1337-man 122 699 14ms 24 Jan 2022 143rd BKGSr2 121 703 13ms 26 Sep 2023 144th PaulCouthouis 111 764 14ms 25 May 2022 145th lxhom 94 909 17ms 13 May 2023 146th two-long 1 112,669 13ms 25 Oct 2022 First Prev 81–146 of 146
