The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 days. Why not try and solve them ahead of time?
Divisors 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 313th Shanethegamer 🇺🇸 948 35 80ms 17 May 2023 313th DialFrost 🇸🇬 948 35 81ms 21 Oct 2023 313th snoozingnewt 🇨🇦 948 35 82ms 21 Oct 2023 313th pardouin 🇫🇷 948 35 82ms 15 Aug 2024 325th Shanethegamer 🇺🇸 947 78 125ms 13 Jan 2022 325th JayXon 🇺🇸 947 78 126ms 13 Jan 2022 325th prplz 🇦🇺 947 78 121ms 13 Jan 2022 325th GrayJoKing 🇦🇺 947 78 132ms 13 Jan 2022 325th nipzu 947 78 122ms 13 Jan 2022 325th Lydxn 🇨🇦 947 78 123ms 13 Jan 2022 325th primo-ppcg 🇹🇭 947 78 119ms 14 Jan 2022 325th btnlq 947 78 125ms 14 Jan 2022 325th kumavale 947 78 125ms 14 Jan 2022 325th Bubbler-4 947 78 126ms 26 Jan 2022 325th lynn 947 78 122ms 10 Mar 2022 325th verticallity 947 78 125ms 7 Apr 2022 325th oeb25 947 78 120ms 16 May 2022 325th MeWhenI 🇻🇦 947 78 122ms 16 May 2022 325th gbxdl 947 78 127ms 14 Jun 2022 325th mintyproof 947 78 123ms 7 Sep 2022 325th sean-niemann 🇺🇸 947 78 122ms 25 Sep 2022 325th Steffan153 🇫🇮 947 78 125ms 30 Sep 2022 325th andersk 🇺🇸 947 78 127ms 22 Oct 2022 325th lzahray 947 78 120ms 25 Oct 2022 325th Natanaelel 🇸🇪 947 78 121ms 9 Nov 2022 325th snobee 🇨🇦 947 78 126ms 10 Dec 2022 325th Betuaredead 947 78 131ms 4 Jan 2023 325th Re-Adventures 🇮🇳 947 78 122ms 4 Jan 2023 325th DialFrost 🇸🇬 947 78 124ms 22 Jan 2023 325th kgodara 947 78 133ms 20 Feb 2023 325th StronkCheese 🇺🇸 947 78 140ms 26 Feb 2023 325th klixel 🇨🇦 947 78 125ms 14 Apr 2023 325th dzshn 947 78 126ms 23 Apr 2023 325th Yewzir 🇧🇪 947 78 126ms 17 May 2023 325th ovs-code 🇩🇪 947 78 120ms 20 Jun 2023 325th stefangimmillaro 947 78 125ms 21 Jun 2023 325th Heathcorp 🇦🇺 947 78 130ms 15 Aug 2023 325th The3gs 947 78 125ms 18 Aug 2023 325th elgan65536 🇺🇸 947 78 123ms 21 Sep 2023 325th snoozingnewt 🇨🇦 947 78 121ms 23 Sep 2023 325th msbranicky 947 78 125ms 6 Oct 2023 325th CarsonChr 🇺🇸 947 78 129ms 24 Dec 2023 325th okaponta 947 78 122ms 11 Jan 2024 325th unfinishedprogram 947 78 132ms 3 May 2024 325th Aurel300 🇨🇭 947 78 128ms 5 Jun 2024 325th HumanoidCPU 947 78 131ms 23 Jun 2024 325th madex 🇩🇪 947 78 125ms 9 Jul 2024 325th wuzekai518 947 78 126ms 17 Jul 2024 325th pardouin 🇫🇷 947 78 121ms 18 Jul 2024 325th dokutan 947 78 123ms 13 Aug 2024 325th CaedenHarper 🇨🇦 947 78 117ms 24 Oct 2024 325th edsrzf 🇳🇿 947 78 121ms 16 Nov 2024 325th nullie 947 78 121ms 18 Dec 2024 325th acotis 947 78 124ms 2 Feb 2025 325th emgordon154 947 78 125ms 27 Feb 2025 325th TannerJ07 🇺🇸 947 78 130ms 4 Apr 2025 325th Lv0Sys 🇵🇱 947 78 120ms 31 May 2025 325th fuzzylojik-golf 🇺🇸 947 78 124ms 13 Jun 2025 325th ian-h-chamberlain 🇺🇸 947 78 126ms 3 Nov 2025 325th luuumine 🇫🇷 947 78 120ms 11 Nov 2025 325th LostSyntax21 🇬🇧 947 78 128ms 30 Nov 2025 325th BREMAUCY 🇫🇷 947 78 123ms 7 Dec 2025 325th CornerMercury 🇬🇧 947 78 121ms 7 Dec 2025 325th fantaize 947 78 121ms 16 days ago 385th gw280 947 79 54ms 16 Dec 2024 385th zygoloid 947 79 54ms 9 Jan 2025 385th 09cf 947 79 52ms 2 Nov 2025 388th primo-ppcg 🇹🇭 946 42 35ms 3 Jan 2020 388th sisyphus-ppcg 🇦🇺 946 42 33ms 6 Apr 2021 390th lynn 943 25 55ms 22 Jul 2022 390th GrayJoKing 🇦🇺 943 25 46ms 31 Jul 2022 390th AlephSquirrel 943 25 45ms 30 Dec 2022 390th ovs-code 🇩🇪 943 25 44ms 12 May 2024 394th prplz 🇦🇺 942 33 285ms 8 Jun 2020 394th primo-ppcg 🇹🇭 942 33 292ms 9 Jun 2020 394th mutaguchi 942 33 276ms 10 Jun 2020 394th btnlq 942 33 259ms 13 Dec 2020 394th nwellnhof 🇩🇪 942 33 265ms 25 Oct 2021 394th Lydxn 🇨🇦 942 33 283ms 17 Nov 2021 394th sisyphus-ppcg 🇦🇺 942 33 277ms 25 Jul 2022 First Prev 321–400 of 5,503 Next Last