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 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 721st emgordon154 401 206 4,326ms 14 Nov 2024 722nd janbehrens 🇩🇪 400 239 572ms 23 Jul 2022 723rd p01 400 254 11ms 28 Jul 2025 724th twocatsinatrenchcoat 399 202 10ms 14 Apr 2022 724th mbittner20 399 202 11ms 27 May 2023 724th PotatoSaladOverlord 399 202 14ms 7 Jun 2023 724th jerebenitez 399 202 12ms 8 Dec 2023 728th CaedenHarper 🇨🇦 398 354 329ms 28 Oct 2025 729th Anonymousellama21 397 203 35ms 6 Jan 2022 730th evnu 397 209 108ms 7 Oct 2025 731st liamstrilchuk 396 257 13ms 11 Sep 2021 731st dokutan 396 257 11ms 5 Jun 2025 733rd guliyevemil1 🇦🇿 395 204 10ms 31 Jan 2021 733rd croc54 395 204 18ms 30 Dec 2024 735th dokutan 394 225 4ms 10 Jul 2023 736th genmeblog 394 251 7ms 11 Dec 2023 736th KatieLG 🇬🇧 394 251 6ms 11 Dec 2023 738th geofft 393 205 17ms 10 Dec 2020 738th ImpressedByRocks 393 205 13ms 12 Feb 2025 738th cthierfelder 🇲🇨 393 205 11ms 4 Sep 2025 738th Lv0Sys 🇵🇱 393 205 10ms 4 Dec 2025 742nd charliegaming 393 259 12ms 3 Oct 2023 743rd doge1338 393 359 381ms 14 Dec 2020 744th dokutan 392 794 2ms 20 Jul 2023 745th OCNeve 391 206 10ms 18 Jun 2024 745th TheZwierzLF 🇵🇱 391 206 10ms 1 Jun 2025 747th boxjelly 390 165 35ms 12 Feb 2021 748th AkashTandon167 390 207 17ms 11 Jan 2021 748th CedricGebistorf 390 207 10ms 7 Nov 2022 750th shellbertt 🇨🇦 389 285 747ms 17 Dec 2021 751st dokutan 389 296 1,021ms 4 Feb 2025 752nd hrubymar10 387 364 330ms 19 Feb 2024 752nd dokutan 387 364 74ms 4 days ago 754th SnowballSH 386 167 37ms 28 Jan 2021 755th Mabeloid 🇳🇴 386 192 566ms 17 Sep 2024 756th iSickos 385 264 11ms 11 Aug 2023 757th KatieLG 🇬🇧 385 299 1,021ms 17 Mar 2024 758th exodrifter 🇺🇸 385 333 138ms 25 Oct 2022 759th not-optikk 🇺🇸 384 264 2ms 2 Dec 2020 760th logvp 382 211 11ms 1 Feb 2024 761st AndFly33 382 266 12ms 14 Jul 2023 761st AustinH-Ntt 382 266 12ms 14 Jul 2023 763rd neihousaigaai 382 290 716ms 5 Apr 2021 763rd h3ra993huskp 🇯🇵 382 290 560ms 30 Nov 2025 765th KatieLG 🇬🇧 382 530 1,609ms 13 Jan 2025 766th KatieLG 🇬🇧 381 176 36ms 28 Sep 2024 767th jlivas 381 267 11ms 3 Jul 2022 767th RytisMark 381 267 15ms 19 Aug 2023 769th Haksell 🇦🇶 379 170 35ms 22 Feb 2023 770th mdnestor 379 213 12ms 13 Dec 2022 770th Player01osu 379 213 11ms 28 Oct 2023 770th robin-scragg 379 213 14ms 17 Jun 2025 773rd Ow0cast 379 268 12ms 23 Jun 2025 774th aaronze 🇦🇺 378 269 12ms 25 Apr 2021 775th Andriamanitra 🇫🇮 377 171 35ms 21 Jul 2022 776th neihousaigaai 377 214 11ms 5 Apr 2021 777th vroup 🇩🇰 377 270 13ms 2 Oct 2022 778th Jacob385 377 294 542ms 4 May 2024 779th HCRitter 🇩🇪 376 199 275ms 16 Oct 2023 780th scpchicken 🇵🇼 375 159 123ms 1 Apr 2022 781st adgh 🇬🇧 375 290 81ms 11 Dec 2024 782nd PowershellKnut 🇳🇴 374 200 279ms 3 Jan 2023 783rd MeWhenI 🇻🇦 374 249 7ms 18 Nov 2023 784th eiburns 374 272 10ms 24 Jan 2022 785th benjamin-brady 373 216 18ms 16 Aug 2021 786th arjanadriaanse 🇳🇱 373 344 121ms 12 Nov 2021 787th msbranicky 372 199 545ms 17 Jan 2024 788th FranklinJiaChen 372 217 10ms 20 Jul 2024 788th RobertHoeh 372 217 10ms 30 Nov 2024 790th KatieLG 🇬🇧 371 224 105ms 12 Nov 2022 791st cbrt-x 371 299 621ms 28 Aug 2021 792nd osmith93 370 218 17ms 14 Jun 2021 793rd JRaspass 🇬🇧 370 323 2ms 9 Sep 2022 793rd Yewzir 🇧🇪 370 323 3ms 5 Jul 2023 795th KatieLG 🇬🇧 369 324 2ms 9 Sep 2022 796th Shanethegamer 🇺🇸 368 241 5ms 18 Oct 2024 797th garrisonhh 367 170 258ms 25 Nov 2020 798th tomh1012 367 302 610ms 26 Nov 2020 799th melboyce 🇳🇿 367 384 380ms 13 Aug 2021 800th CaedenHarper 🇨🇦 366 207 1,277ms 2 Oct 2025 First Prev 721–800 of 1,338 Next Last
