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?
Continued Fractions 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 241st CaedenHarper 🇨🇦 802 178 419ms 2 days ago 242nd sean-niemann 🇺🇸 800 153 429ms 19 days ago 243rd albanian-laundromat 800 157 11ms 19 days ago 244th Natanaelel 🇸🇪 796 92 3ms 24 days ago 245th acotis 796 196 532ms 23 days ago 246th snoozingnewt 🇨🇦 794 162 117ms 16 days ago 247th MeWhenI 🇻🇦 793 110 1,252ms 19 days ago 248th albanian-laundromat 790 89 2ms 24 days ago 249th kg583 🇺🇸 790 150 42ms 19 Nov 2025 250th albanian-laundromat 790 205 59ms 16 days ago 251st emgordon154 789 114 6ms 22 days ago 252nd canissimia 🇦🇶 788 279 2ms 12 days ago 253rd JRaspass 🇬🇧 787 93 3ms 24 days ago 254th CaedenHarper 🇨🇦 786 108 888ms 20 days ago 255th albanian-laundromat 784 175 113ms 19 days ago 256th albanian-laundromat 783 178 89ms 18 days ago 257th emgordon154 783 318 1,699ms 22 days ago 258th albanian-laundromat 783 322 9ms 7 hours ago 259th Natanaelel 🇸🇪 779 169 139ms 17 days ago 260th kg583 🇺🇸 776 131 10ms 23 days ago 261st albanian-laundromat 776 299 1,446ms 20 days ago 262nd albanian-laundromat 775 415 12ms 22 days ago 263rd pardouin 🇫🇷 772 185 411ms 23 days ago 264th KatieLG 🇬🇧 770 125 421ms 24 days ago 265th Shanethegamer 🇺🇸 769 86 36ms 7 Dec 2025 266th Apfelvater 766 152 10ms 20 days ago 267th helbling 🇨🇭 763 115 15ms 20 days ago 268th anter69 🇭🇺 760 87 36ms 27 Nov 2025 269th BambooleanLogic 🇸🇪 757 116 12ms 21 days ago 269th CaedenHarper 🇨🇦 757 116 14ms 20 days ago 269th gigaprofisi 🇺🇸 757 116 9ms 9 days ago 272nd tomh1012 756 154 10ms 21 days ago 273rd Yax42 🇫🇷 756 157 483ms 13 Jan 2026 274th albanian-laundromat 755 199 3ms 22 days ago 275th emgordon154 754 176 520ms 22 days ago 276th denkyuu1 752 88 37ms 14 days ago 277th tailorspy 751 163 434ms 17 days ago 278th voytxt 🇨🇿 751 309 1,398ms 6 Feb 2026 279th emgordon154 748 151 8ms 17 days ago 280th cros107 🇦🇺 746 156 10ms 22 days ago 281st KatieLG 🇬🇧 743 89 37ms 24 days ago 282nd scpchicken 🇵🇼 737 158 16ms 24 days ago 283rd AdrienHache 🇫🇷 736 96 51ms 27 days ago 284th GolfingSuccess 🇬🇷 736 145 17ms 3 days ago 285th LostSyntax21 🇬🇧 736 219 42ms 22 days ago 286th edsrzf 🇳🇿 733 213 244ms 20 days ago 287th zakariamouhid 732 120 13ms 21 days ago 287th Just4FunCoder 732 120 17ms 14 days ago 289th Shanethegamer 🇺🇸 724 133 425ms 22 Nov 2025 290th albanian-laundromat 722 175 1,404ms 20 days ago 291st Matter1024 🇮🇳 721 184 522ms 19 Feb 2026 292nd Chinay-Domitrix 🇺🇸 720 155 2,620ms 22 days ago 293rd dokutan 719 118 841ms 8 days ago 294th snoozingnewt 🇨🇦 718 135 127ms 23 days ago 295th albanian-laundromat 716 142 2ms 23 days ago 296th pardouin 🇫🇷 715 166 485ms 23 days ago 297th albanian-laundromat 714 145 120ms 25 days ago 298th chenyuan33 714 163 11ms 21 Feb 2026 298th JOrE20 714 163 10ms 24 days ago 300th snoozingnewt 🇨🇦 710 227 42ms 19 days ago 301st MeWhenI 🇻🇦 706 144 2ms 19 days ago 301st xiaoyiming123 706 144 2ms 6 days ago 303rd madex 🇩🇪 702 159 2,680ms 2 days ago 304th retrohun 698 100 19ms 21 days ago 305th dokutan 698 148 2ms 19 days ago 306th roelderickx 697 167 12ms 9 days ago 307th bitsandbeyond 🇳🇱 693 168 10ms 19 Nov 2025 308th MeWhenI 🇻🇦 689 102 1ms 19 days ago 309th emgordon154 686 128 16ms 23 days ago 310th Herbert00709 🇵🇱 684 179 1,389ms 18 days ago 311th alexsave 681 129 11ms 24 days ago 312th denkyuu1 681 171 18ms 14 days ago 313th Natanaelel 🇸🇪 677 150 2ms 19 days ago 314th elgan65536 🇺🇸 676 231 222ms 9 Feb 2026 315th Matter1024 🇮🇳 675 98 36ms 20 Dec 2025 316th NickTheEASDude 🇺🇸 675 153 2ms 15 days ago 317th albanian-laundromat 672 209 397ms 18 days ago 318th JOrE20 670 131 13ms 7 Jan 2026 319th emgordon154 663 79 2ms 22 days ago 320th arcpolaris 663 179 453ms 10 hours ago First Prev 241–320 of 373 Next Last