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 401st MeWhenI 🇻🇦 570 213 169ms 3 Aug 2024 402nd scpchicken 🇵🇼 568 197 10ms 28 Jan 2023 403rd klixel 🇨🇦 568 282 233ms 15 Nov 2024 404th junkondo-jp 567 237 12ms 17 Feb 2026 405th kellengreen 565 238 10ms 19 Jun 2021 406th dokutan 563 149 38ms 14 Dec 2025 407th itsh01 563 239 12ms 9 Nov 2021 408th mossprescott 562 199 11ms 16 Jan 2023 409th frankgraziano 562 272 5ms 28 Dec 2022 410th moikaturns 🇬🇧 560 240 11ms 29 Sep 2022 411th elgan65536 🇺🇸 560 286 299ms 29 Mar 2024 412th annaproxy 558 120 2ms 19 Feb 2022 413th omurakazuaki 🇯🇵 558 241 12ms 11 Feb 2021 413th didion0 🇺🇸 558 241 16ms 21 Apr 2021 413th biocommando 🇫🇮 558 241 10ms 19 Jun 2025 416th retrohun 554 276 5ms 30 Nov 2020 417th JRaspass 🇬🇧 553 269 3ms 25 Sep 2022 418th Yewzir 🇧🇪 553 319 7ms 23 Dec 2024 419th Natanaelel 🇸🇪 551 203 12ms 22 Jul 2022 420th weliveinhell 🇭🇹 551 244 10ms 5 Jul 2025 421st roelderickx 551 291 175ms 14 days ago 422nd Lydxn 🇨🇦 549 166 4ms 27 May 2023 423rd emplv 🇱🇻 549 210 5ms 2 Jul 2023 424th hyvyys 549 245 12ms 4 Jun 2021 424th helbling 🇨🇭 549 245 11ms 15 Apr 2024 424th voytxt 🇨🇿 549 245 11ms 23 Jul 2024 427th dokutan 549 271 3ms 6 Jun 2025 428th janbehrens 🇩🇪 548 204 24ms 17 Jun 2023 429th Natanaelel 🇸🇪 547 153 39ms 21 Oct 2022 430th MeWhenI 🇻🇦 547 211 6ms 29 May 2023 431st gnlow 🇰🇷 547 246 14ms 6 Mar 2021 432nd Yewzir 🇧🇪 546 362 2,117ms 21 May 2024 433rd alexsave 544 247 10ms 29 Oct 2024 434th coltraloz 🇪🇸 543 232 592ms 3 Apr 2025 435th bakkeby 543 274 3ms 28 Sep 2022 436th dokutan 542 146 333ms 7 Jun 2025 437th edsrzf 🇳🇿 542 203 2ms 23 Feb 2025 438th xyangst 542 248 11ms 23 Sep 2024 438th kovdmm 542 248 11ms 13 Oct 2024 440th the-zammers 541 295 124ms 1 Dec 2024 441st coreynash 540 249 10ms 19 Sep 2023 442nd elephantpanda 538 208 11ms 11 Aug 2022 443rd thisishowmymindworks 🇳🇴 538 250 16ms 9 Jun 2024 444th MeWhenI 🇻🇦 536 211 497ms 21 Jul 2022 445th dokutan 536 235 629ms 14 Dec 2025 446th Waffle3z 536 261 2ms 4 Aug 2022 446th alphafalfa 536 261 2ms 6 Nov 2024 448th nstearns96 🇬🇧 535 209 12ms 17 Jan 2023 449th olleicua 🇺🇸 534 157 35ms 24 Feb 2024 450th ereztaiar 🇮🇱 534 252 10ms 4 Sep 2021 451st msbranicky 533 296 364ms 31 Aug 2023 452nd boxjelly 532 300 126ms 12 Feb 2021 453rd dokutan 531 200 2ms 8 Nov 2025 454th vibdev 529 254 14ms 26 Aug 2021 455th TheEric0802 🇩🇪 529 281 3ms 15 Jul 2024 456th tobeannouncd 529 302 145ms 2 Nov 2023 457th detrumi 🇳🇱 529 303 187ms 14 Feb 2021 458th stefangabos 🇷🇴 527 255 16ms 12 Sep 2022 459th vishwathg 525 213 10ms 3 Apr 2023 459th InigoK 🇺🇸 525 213 17ms 10 Jul 2023 461st MeWhenI 🇻🇦 524 185 259ms 28 Jan 2023 462nd dokutan 524 227 7ms 6 May 2024 463rd blaztoma 🇱🇹 523 369 27ms 26 Dec 2025 464th two-bad 🇬🇧 521 258 12ms 14 Dec 2023 464th shandriy 521 258 11ms 26 Dec 2025 466th ibeucaly 519 304 379ms 17 Jan 2023 467th msbranicky 516 311 3ms 10 Aug 2023 468th JDiLenarda 🇫🇷 514 272 1,404ms 22 Nov 2023 469th xkacer 🇨🇿 513 218 10ms 30 Jan 2021 470th GeorgeStechman 🇬🇧 513 262 11ms 28 Sep 2022 470th dylanarmstrong 513 262 10ms 25 Jan 2024 472nd cafehaine 🇫🇷 513 273 2ms 22 Sep 2022 473rd AlephSquirrel 512 152 3ms 8 Nov 2025 474th andrewjc2000 511 219 12ms 21 May 2025 475th DanielVenable 511 263 11ms 27 Mar 2025 476th dokutan 510 260 39ms 12 Feb 2025 477th kurkale6ka 509 220 32ms 19 Dec 2023 478th KatieLG 🇬🇧 509 264 13ms 5 Nov 2024 479th CatsAreFluffy 506 162 55ms 31 Oct 2025 480th dim-an 506 221 10ms 9 Dec 2020 First Prev 401–480 of 1,346 Next Last