The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 21 hours. Why not try and solve them ahead of time?
Emojify 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 80th Ashikpaul 🇮🇳 493 213 10ms 29 Jul 2022 80th zakariamouhid 493 213 13ms 8 Jun 2023 83rd lewdev 🇺🇸 491 214 12ms 14 Mar 2024 84th itserasmus 488 215 11ms 26 Jan 2024 84th Protothor 488 215 11ms 4 Jun 2025 86th Re-Adventures 🇮🇳 486 216 13ms 23 Apr 2021 86th uttumuttu 🇫🇮 486 216 12ms 7 Mar 2022 86th funnyboy-roks 486 216 12ms 15 Jun 2024 89th tomh1012 477 220 13ms 26 Nov 2020 90th neihousaigaai 475 221 11ms 18 Apr 2021 90th SpareManiKatti 475 221 11ms 13 Oct 2021 92nd CatsAreFluffy 467 225 11ms 29 Nov 2022 93rd eranws 463 227 12ms 24 Oct 2022 93rd Salutations45 463 227 10ms 16 Nov 2024 93rd iczelia 🇩🇪 463 227 11ms 10 Oct 2025 96th Moreallure 461 228 11ms 5 May 2024 97th fitzdotlol 🇺🇸 449 234 12ms 20 Mar 2022 98th sophuric 441 238 12ms 18 Oct 2021 99th Isaac-NTT 439 239 12ms 17 Jul 2023 100th veiko 436 241 12ms 28 Jun 2022 101st Rhinozz 🇨🇦 434 242 12ms 22 Aug 2021 102nd Vaekor 422 249 11ms 26 Feb 2024 103rd p01 413 254 10ms 28 Jul 2025 104th liamstrilchuk 409 257 10ms 11 Sep 2021 104th dokutan 409 257 12ms 5 Jun 2025 106th charliegaming 405 259 11ms 3 Oct 2023 107th iSickos 398 264 11ms 11 Aug 2023 108th AndFly33 395 266 10ms 14 Jul 2023 108th AustinH-Ntt 395 266 11ms 14 Jul 2023 110th jlivas 393 267 11ms 3 Jul 2022 110th RytisMark 393 267 11ms 19 Aug 2023 112th Ow0cast 392 268 11ms 23 Jun 2025 113th aaronze 🇦🇺 390 269 10ms 25 Apr 2021 114th vroup 🇩🇰 389 270 11ms 2 Oct 2022 115th eiburns 386 272 12ms 24 Jan 2022 116th gurglemurgle5 376 279 11ms 13 Jul 2022 117th dsntzn 🇸🇰 375 280 11ms 13 Dec 2020 117th lowlighter 375 280 12ms 12 Mar 2021 119th johnburton0517 372 282 12ms 14 Jul 2023 120th HenryTy83 367 286 11ms 5 May 2023 120th Maznek 367 286 11ms 2 Jul 2023 120th Florian-Mt 367 286 11ms 14 Nov 2023 120th nsprd 367 286 12ms 18 Jan 2024 120th wh3n3v3r 🇨🇿 367 286 11ms 12 Nov 2024 120th gigaprofisi 🇺🇸 367 286 10ms 20 Jun 2025 120th CaedenHarper 🇨🇦 367 286 13ms 21 Aug 2025 120th olleicua 🇺🇸 367 286 11ms 11 Sep 2025 128th antonymontana 366 287 10ms 7 Dec 2020 128th johanrosenson 366 287 13ms 8 Dec 2021 128th mackereldev 366 287 12ms 28 Apr 2022 128th ollyspooner 366 287 11ms 25 Nov 2022 128th FrederikHutfless 🇩🇪 366 287 11ms 22 Dec 2022 133rd BBoehm 🇩🇪 365 288 11ms 28 Jan 2021 134th bbb651 🇮🇱 363 289 10ms 25 Nov 2020 134th tetrogem 363 289 12ms 8 Sep 2021 134th zaneshaw 363 289 12ms 28 Apr 2022 137th zugch 362 290 10ms 7 Oct 2024 138th DaCuteRaccoon 361 291 11ms 21 Apr 2022 138th 1231234md5 🇨🇳 361 291 10ms 15 Dec 2023 138th hacker112 🇸🇪 361 291 10ms 23 Jun 2024 138th MrMullac 361 291 10ms 23 Mar 2025 138th andrewl64 361 291 11ms 25 Sep 2025 138th Cube14yt 361 291 10ms 19 Nov 2025 138th Roachbones 361 291 11ms 16 Jan 2026 145th doge1338 360 292 10ms 14 Dec 2020 145th Thonoton 360 292 12ms 9 Mar 2023 145th CristhoferT29 360 292 10ms 6 Jul 2024 145th 4very 360 292 10ms 7 Jun 2025 149th con-cs 357 294 13ms 15 Oct 2021 149th sech1p 🇵🇱 357 294 12ms 31 Oct 2021 149th GulgDev 357 294 11ms 14 Nov 2023 152nd IchBinMichMarkus 356 295 11ms 4 Jul 2024 153rd ThibWillFulll 354 297 12ms 6 May 2022 153rd null-tangent 354 297 11ms 14 May 2023 153rd MCausc78 🇺🇦 354 297 14ms 20 Aug 2023 156th hacker19374 347 303 11ms 13 Mar 2023 157th apokryfos 345 304 12ms 21 Aug 2023 157th LesBoys43 345 304 11ms 9 Nov 2025 159th aarnoldaas 344 305 11ms 7 May 2021 160th Henrixounez 323 325 12ms 17 Sep 2021 First Prev 81–160 of 167 Next Last
