The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 days. Why not try and solve them ahead of time?
brainfuck 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 321st GalladeGuy 🇺🇸 788 203 3ms 5 Feb 2024 321st frosster 🇨🇦 788 203 4ms 19 Jan 2026 323rd zbreit 🇺🇸 788 204 22ms 19 Aug 2021 323rd aglahir1 788 204 22ms 10 Nov 2021 323rd m42km 788 204 23ms 3 Feb 2024 326th jbt 787 165 15ms 28 Dec 2023 326th error256 787 165 13ms 19 Nov 2024 326th weliveinhell 🇭🇹 787 165 13ms 18 Jun 2025 329th lifthrasiir 🇰🇷 787 289 59ms 17 Dec 2024 330th scpchicken 🇵🇼 786 99 26ms 28 Feb 2023 331st DialFrost 🇸🇬 786 128 2,644ms 31 Aug 2025 332nd kg583 🇺🇸 786 173 18ms 14 days ago 333rd lifthrasiir 🇰🇷 786 180 623ms 6 Dec 2024 333rd emgordon154 786 180 641ms 14 May 2025 335th rschwa6308 🇺🇸 784 205 21ms 19 Aug 2021 335th amollberg 🇸🇪 784 205 22ms 21 Jan 2022 335th Anonymousellama21 784 205 21ms 26 Mar 2024 335th Languag3 784 205 24ms 8 Dec 2025 339th stefangimmillaro 784 234 3,365ms 12 Nov 2024 340th GolfingSuccess 🇬🇷 784 358 4,596ms a min ago 341st prplz 🇦🇺 783 302 149ms 23 Dec 2021 342nd prplz 🇦🇺 782 149 2,908ms 9 Jan 2022 343rd olleicua 🇺🇸 782 166 15ms 15 Jan 2024 343rd nathanadams 🇳🇿 782 166 18ms 6 Oct 2025 345th Shanethegamer 🇺🇸 781 181 540ms 16 Jan 2024 345th CaedenHarper 🇨🇦 781 181 675ms 16 Oct 2025 347th primo-ppcg 🇹🇭 780 164 94ms 17 Oct 2023 348th mtirado1 780 205 3ms 17 Apr 2023 348th DaDerpDuck 780 205 3ms 7 Nov 2023 350th aksyristos 780 206 22ms 1 Mar 2023 350th Alex-x90 🇺🇸 780 206 22ms 3 Feb 2024 352nd p01 777 167 14ms 12 Apr 2018 352nd coreynash 777 167 19ms 28 Sep 2023 352nd Natanaelel 🇸🇪 777 167 17ms 18 Feb 2025 355th DialFrost 🇸🇬 777 182 548ms 28 Jul 2024 356th ZakkkkAttackkkk 🇵🇭 777 207 471ms 28 Feb 2022 356th jmerle 🇳🇱 777 207 22ms 4 Jul 2023 356th albanian-laundromat 777 207 20ms 31 Jul 2025 359th Shanethegamer 🇺🇸 776 112 39ms 25 Dec 2023 360th MarcMush 🇫🇷 775 163 2,044ms 4 Feb 2024 361st MeWhenI 🇻🇦 774 62 105ms 27 Jul 2022 362nd stefangimmillaro 774 212 494ms 10 Apr 2025 363rd SirBogman 🇺🇸 774 230 586ms 29 Dec 2021 364th MostParsingVex 774 237 3,351ms 30 Oct 2024 365th edsrzf 🇳🇿 774 272 115ms 16 Jul 2025 366th stefangimmillaro 773 168 13ms 27 Sep 2024 367th AlephSquirrel 773 183 582ms 22 Jan 2024 368th wackbyte 773 207 3ms 14 Dec 2023 369th yzhs 🇩🇪 773 208 23ms 23 Jun 2023 369th adamnielson42 🇺🇸 773 208 23ms 26 Jan 2025 369th amberzit 773 208 22ms 5 Jul 2025 372nd HPWiz 🇳🇿 771 96 89ms 26 Aug 2024 373rd Jaymesv2 770 307 175ms 2 Dec 2023 374th ndren 769 209 28ms 23 Aug 2023 374th sjrct 769 209 65ms 9 Aug 2024 376th SirBogman 🇺🇸 768 169 18ms 1 Jan 2022 376th trinityy-7 768 169 12ms 10 Oct 2023 376th targrik 768 169 18ms 7 Jun 2025 376th KasperKivimaeki 🇫🇮 768 169 12ms 30 Dec 2025 380th ovs-code 🇩🇪 765 164 166ms 17 Apr 2025 381st neel11235813 765 185 576ms 10 Mar 2024 381st dokutan 765 185 479ms 15 Feb 2026 381st snoozingnewt 🇨🇦 765 185 495ms 5 days ago 384th MeWhenI 🇻🇦 765 326 1,356ms 29 Jul 2024 385th JRaspass 🇬🇧 763 102 23ms 2 Feb 2018 386th omurakazuaki 🇯🇵 763 170 14ms 20 Feb 2021 386th DayDun 🇸🇪 763 170 16ms 24 Jan 2023 386th deniz-blue 763 170 15ms 21 Oct 2023 386th madeforlosers 763 170 13ms 3 Nov 2025 386th spidunno 763 170 17ms 23 Feb 2026 391st trist224 🇫🇷 762 211 21ms 23 Nov 2022 392nd xsot 🇸🇬 761 155 21ms 2 Feb 2025 393rd Shanethegamer 🇺🇸 759 171 13ms 21 Oct 2021 393rd DialFrost 🇸🇬 759 171 14ms 25 May 2024 393rd JOrE20 759 171 15ms 21 Dec 2025 396th cafehaine 🇫🇷 758 211 3ms 1 Dec 2021 397th SB-945 758 212 21ms 6 Feb 2024 397th fuzzylojik-golf 🇺🇸 758 212 21ms 31 May 2025 397th maxgodfrey2004 🇨🇦 758 212 21ms 13 Jul 2025 397th Bmrl7 758 212 22ms 22 Dec 2025 First Prev 321–400 of 1,458 Next Last