The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 7 days. Why not try and solve them ahead of time?
Emojify in all languages 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 480th StefanHabel 🇨🇦 506 221 10ms 22 Apr 2024 482nd BambooleanLogic 🇸🇪 506 266 10ms 1 Dec 2021 483rd emgordon154 505 166 43ms 7 Mar 2025 484th nullie 504 222 12ms 8 Jun 2022 485th ReidZ3 🇺🇸 504 317 134ms 6 Dec 2020 486th msbranicky 502 223 10ms 16 Jul 2023 487th Y0UR-U5ERNAME 502 268 13ms 3 Sep 2021 487th ForkKILLET 🇨🇳 502 268 10ms 10 Oct 2021 487th LordSir101 502 268 11ms 31 Jul 2025 490th c0d3-4-F00d 🇩🇪 501 212 2ms 18 Mar 2022 491st JKlasser 501 251 585ms 17 Jan 2025 492nd yzhs 🇩🇪 501 319 145ms 25 Jul 2021 493rd arcpolaris 500 237 539ms 13 Jan 2026 494th elisherer 🇮🇱 500 269 11ms 1 Jan 2021 495th guilhem-roy 🇫🇷 499 224 11ms 22 Jun 2023 496th Natanaelel 🇸🇪 498 183 3ms 22 Jul 2022 497th billings7 🇬🇧 498 238 439ms 21 May 2024 498th solmyr2000 498 267 493ms 27 Jul 2022 499th tpiechaczek 🇵🇱 498 270 13ms 11 Jan 2021 499th acollett89 498 270 10ms 15 Jul 2025 499th Lv0Sys 🇵🇱 498 270 15ms 4 Dec 2025 502nd quimey 497 225 11ms 28 Jun 2023 503rd ndren 496 201 557ms 14 Jul 2025 504th marcin7Cd 496 243 5ms 31 Jan 2021 505th JOrE20 496 271 17ms 21 Feb 2026 506th janbehrens 🇩🇪 495 239 423ms 17 Jun 2023 507th Natanaelel 🇸🇪 494 186 1,653ms 22 Jul 2022 508th unfinishedprogram 494 272 10ms 9 Aug 2022 508th trinityy-7 494 272 11ms 28 Oct 2023 510th Feniske 🇫🇷 492 197 322ms 12 Nov 2023 511th FlorianCassayre 🇫🇷 491 228 17ms 14 Sep 2023 512th ArmaanAS 491 274 11ms 2 Apr 2021 513th dokutan 491 371 1,021ms 4 Feb 2025 514th Yewzir 🇧🇪 490 322 332ms 5 Jan 2024 515th snoozingnewt 🇨🇦 489 275 11ms 9 Oct 2025 516th dokutan 488 183 1,041ms 21 Feb 2026 517th LukeBridges 🇬🇧 487 276 13ms 31 Jan 2025 518th KatieLG 🇬🇧 487 374 1,021ms 17 Mar 2024 519th PaulMWeiser 486 230 11ms 5 Mar 2023 519th cardosoo 486 230 10ms 6 Oct 2024 521st yzhs 🇩🇪 484 231 10ms 28 Nov 2020 522nd Indivicivet 482 232 17ms 19 Mar 2021 522nd omri2001 482 232 12ms 20 Oct 2022 522nd albanian-laundromat 482 232 10ms 25 May 2025 522nd fkantelberg 482 232 10ms 18 Jul 2025 526th mrmena 🇦🇺 482 279 10ms 20 Mar 2024 526th CarsonChr 🇺🇸 482 279 15ms 23 Apr 2024 528th MeWhenI 🇻🇦 481 553 1,529ms 10 Feb 2025 529th dsntzn 🇸🇰 480 280 12ms 13 Dec 2020 530th emgordon154 478 213 4,326ms 14 Nov 2024 531st heanyang1 476 223 2ms 20 Apr 2025 532nd solisolu 476 235 10ms 15 Oct 2025 533rd postie77 476 249 457ms 12 Sep 2023 534th nullshallot 475 204 292ms 3 Jan 2025 535th davyboyhayes 475 283 12ms 3 Feb 2023 536th dokutan 475 561 1,626ms 12 Jan 2025 537th ericlangedijk 🇸🇮 474 250 464ms 18 Mar 2022 538th rgthree 474 284 13ms 24 Aug 2023 539th msbranicky 474 321 2ms 12 Oct 2023 540th dcgjb 473 205 305ms 6 May 2024 541st UnderKoen 🇳🇱 472 233 2ms 22 Jan 2024 542nd BREMAUCY 🇫🇷 472 237 17ms 4 May 2024 543rd Protothor 472 285 12ms 4 Jun 2025 544th dokutan 471 314 49ms 28 Aug 2024 545th brochmann 🇸🇪 470 238 18ms 10 Feb 2022 546th stellartux 470 286 13ms 28 Dec 2023 547th HerLovelyTentacles 468 239 18ms 18 Apr 2021 547th knutae 🇳🇴 468 239 10ms 29 Jun 2021 549th BBoehm 🇩🇪 467 288 12ms 28 Jan 2021 549th eikhr 🇳🇴 467 288 11ms 14 Jun 2021 549th Ashikpaul 🇮🇳 467 288 10ms 29 Jul 2022 549th zakariamouhid 467 288 12ms 8 Jun 2023 553rd MeWhenI 🇻🇦 467 327 7ms 18 Nov 2023 554th cipharius 467 342 120ms 21 Jan 2021 555th JVerwolf 466 240 13ms 25 Aug 2021 555th aaa123git 466 240 10ms 18 Jul 2024 557th MeWhenI 🇻🇦 466 255 7ms 12 Apr 2024 558th lewdev 🇺🇸 465 289 11ms 14 Mar 2024 558th non-bin 465 289 10ms 25 Jun 2025 560th snoozingnewt 🇨🇦 465 297 104ms 20 Nov 2025 First Prev 481–560 of 1,346 Next Last