The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 6 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 720th Andrey2001 401 201 11ms 1 Feb 2026 722nd emgordon154 401 206 4,326ms 14 Nov 2024 723rd janbehrens 🇩🇪 400 239 572ms 23 Jul 2022 724th p01 400 254 11ms 28 Jul 2025 725th twocatsinatrenchcoat 399 202 10ms 14 Apr 2022 725th mbittner20 399 202 11ms 27 May 2023 725th PotatoSaladOverlord 399 202 14ms 7 Jun 2023 725th jerebenitez 399 202 12ms 8 Dec 2023 729th CaedenHarper 🇨🇦 398 354 329ms 28 Oct 2025 730th Anonymousellama21 397 203 35ms 6 Jan 2022 731st evnu 397 209 108ms 7 Oct 2025 732nd liamstrilchuk 396 257 12ms 11 Sep 2021 732nd dokutan 396 257 13ms 5 Jun 2025 734th guliyevemil1 🇦🇿 395 204 10ms 31 Jan 2021 734th croc54 395 204 18ms 30 Dec 2024 736th dokutan 394 225 4ms 10 Jul 2023 737th genmeblog 394 251 7ms 11 Dec 2023 737th KatieLG 🇬🇧 394 251 6ms 11 Dec 2023 739th geofft 393 205 17ms 10 Dec 2020 739th ImpressedByRocks 393 205 13ms 12 Feb 2025 739th cthierfelder 🇲🇨 393 205 11ms 4 Sep 2025 739th Lv0Sys 🇵🇱 393 205 10ms 4 Dec 2025 743rd charliegaming 393 259 11ms 3 Oct 2023 744th doge1338 393 359 381ms 14 Dec 2020 745th dokutan 392 794 2ms 20 Jul 2023 746th OCNeve 391 206 10ms 18 Jun 2024 746th TheZwierzLF 🇵🇱 391 206 10ms 1 Jun 2025 748th boxjelly 390 165 35ms 12 Feb 2021 749th AkashTandon167 390 207 17ms 11 Jan 2021 749th CedricGebistorf 390 207 10ms 7 Nov 2022 751st shellbertt 🇨🇦 389 285 747ms 17 Dec 2021 752nd dokutan 389 296 1,021ms 4 Feb 2025 753rd hrubymar10 387 364 330ms 19 Feb 2024 753rd dokutan 387 364 74ms 5 days ago 755th SnowballSH 386 167 37ms 28 Jan 2021 756th Mabeloid 🇳🇴 386 192 566ms 17 Sep 2024 757th iSickos 385 264 12ms 11 Aug 2023 758th KatieLG 🇬🇧 385 299 1,021ms 17 Mar 2024 759th exodrifter 🇺🇸 385 333 138ms 25 Oct 2022 760th not-optikk 🇺🇸 384 264 2ms 2 Dec 2020 761st logvp 382 211 11ms 1 Feb 2024 762nd AndFly33 382 266 10ms 14 Jul 2023 762nd AustinH-Ntt 382 266 11ms 14 Jul 2023 764th neihousaigaai 382 290 716ms 5 Apr 2021 764th h3ra993huskp 🇯🇵 382 290 560ms 30 Nov 2025 766th KatieLG 🇬🇧 382 530 1,609ms 13 Jan 2025 767th KatieLG 🇬🇧 381 176 36ms 28 Sep 2024 768th jlivas 381 267 13ms 3 Jul 2022 768th RytisMark 381 267 11ms 19 Aug 2023 770th Haksell 🇦🇶 379 170 35ms 22 Feb 2023 771st mdnestor 379 213 12ms 13 Dec 2022 771st Player01osu 379 213 11ms 28 Oct 2023 771st robin-scragg 379 213 14ms 17 Jun 2025 774th Ow0cast 379 268 12ms 23 Jun 2025 775th aaronze 🇦🇺 378 269 10ms 25 Apr 2021 776th Andriamanitra 🇫🇮 377 171 35ms 21 Jul 2022 777th neihousaigaai 377 214 11ms 5 Apr 2021 778th vroup 🇩🇰 377 270 11ms 2 Oct 2022 779th Jacob385 377 294 542ms 4 May 2024 780th HCRitter 🇩🇪 376 199 275ms 16 Oct 2023 781st scpchicken 🇵🇼 375 159 123ms 1 Apr 2022 782nd adgh 🇬🇧 375 290 81ms 11 Dec 2024 783rd PowershellKnut 🇳🇴 374 200 279ms 3 Jan 2023 784th MeWhenI 🇻🇦 374 249 7ms 18 Nov 2023 785th eiburns 374 272 12ms 24 Jan 2022 786th benjamin-brady 373 216 18ms 16 Aug 2021 787th arjanadriaanse 🇳🇱 373 344 121ms 12 Nov 2021 788th msbranicky 372 199 545ms 17 Jan 2024 789th FranklinJiaChen 372 217 10ms 20 Jul 2024 789th RobertHoeh 372 217 10ms 30 Nov 2024 791st KatieLG 🇬🇧 371 224 105ms 12 Nov 2022 792nd cbrt-x 371 299 621ms 28 Aug 2021 793rd osmith93 370 218 17ms 14 Jun 2021 794th JRaspass 🇬🇧 370 323 2ms 9 Sep 2022 794th Yewzir 🇧🇪 370 323 3ms 5 Jul 2023 796th KatieLG 🇬🇧 369 324 2ms 9 Sep 2022 797th Shanethegamer 🇺🇸 368 241 5ms 18 Oct 2024 798th garrisonhh 367 170 258ms 25 Nov 2020 799th tomh1012 367 302 610ms 26 Nov 2020 800th melboyce 🇳🇿 367 384 380ms 13 Aug 2021 First Prev 721–800 of 1,339 Next Last
