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?
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 161st Steffan153 🇫🇮 857 99 773ms 25 days ago 162nd UnderKoen 🇳🇱 857 148 5ms 35 hours ago 163rd edsrzf 🇳🇿 856 108 6ms 22 days ago 164th edsrzf 🇳🇿 856 132 7ms 17 days ago 165th Shanethegamer 🇺🇸 856 136 31ms 21 Nov 2025 166th GolfingSuccess 🇬🇷 856 143 455ms 19 Nov 2025 167th ovs-code 🇩🇪 855 95 457ms 26 days ago 168th Steffan153 🇫🇮 855 133 29ms 24 days ago 169th lynn 855 154 153ms 15 days ago 169th edsrzf 🇳🇿 855 154 149ms 8 days ago 171st zacjl 854 119 7ms 23 days ago 172nd albanian-laundromat 854 157 43ms 21 days ago 173rd kumavale 853 183 222ms 19 Nov 2025 174th MeWhenI 🇻🇦 852 103 11ms 21 days ago 175th snoozingnewt 🇨🇦 852 113 431ms 16 days ago 175th dokutan 852 113 406ms 14 days ago 177th kg583 🇺🇸 851 129 4ms 25 days ago 178th edsrzf 🇳🇿 851 165 400ms 21 days ago 179th moustave 850 137 13ms 17 days ago 180th edsrzf 🇳🇿 850 168 386ms 21 days ago 181st GrayJoKing 🇦🇺 849 133 7ms 22 days ago 182nd edsrzf 🇳🇿 848 122 117ms 25 days ago 183rd edsrzf 🇳🇿 848 149 1,441ms 18 days ago 184th MeWhenI 🇻🇦 848 158 44ms 21 days ago 185th error256 847 108 63ms 18 days ago 186th saito-ta 🇯🇵 847 120 2ms 20 days ago 187th kg583 🇺🇸 847 129 8ms 26 Feb 2026 188th pardouin 🇫🇷 845 114 386ms 15 Feb 2026 188th kg583 🇺🇸 845 114 378ms 26 Feb 2026 188th MeWhenI 🇻🇦 845 114 414ms 25 days ago 191st edsrzf 🇳🇿 845 150 5ms 35 hours ago 192nd Lv0Sys 🇵🇱 845 157 430ms 26 days ago 193rd sean-niemann 🇺🇸 844 101 161ms 23 days ago 194th nwellnhof 🇩🇪 844 104 11ms 27 days ago 195th ovs-code 🇩🇪 844 156 138ms 21 Nov 2025 196th MeWhenI 🇻🇦 844 191 43ms 21 days ago 197th edsrzf 🇳🇿 841 141 42ms 23 days ago 198th ovs-code 🇩🇪 840 121 2ms 21 Nov 2025 199th albanian-laundromat 840 174 284ms 24 Feb 2026 200th snyderek 🇺🇸 838 146 447ms 18 days ago 201st Steffan153 🇫🇮 837 84 2ms 16 days ago 202nd 2bular 837 85 33ms 20 Nov 2025 203rd emgordon154 837 115 482ms 25 days ago 204th MeWhenI 🇻🇦 837 150 10ms 21 days ago 205th voytxt 🇨🇿 836 105 11ms 15 Jan 2026 206th edsrzf 🇳🇿 835 124 4ms 26 days ago 207th edsrzf 🇳🇿 835 154 102ms 26 days ago 208th GolfingSuccess 🇬🇷 835 171 377ms 25 days ago 209th edsrzf 🇳🇿 835 190 76ms 4 days ago 210th error256 833 122 8ms 7 days ago 211th ZakkkkAttackkkk 🇵🇭 831 140 30ms 18 days ago 212th MeWhenI 🇻🇦 831 165 119ms 21 days ago 213th albanian-laundromat 831 194 40ms 21 days ago 214th edsrzf 🇳🇿 830 137 30ms 24 days ago 215th edsrzf 🇳🇿 830 168 87ms 21 days ago 216th edsrzf 🇳🇿 828 132 11ms 26 days ago 217th pardouin 🇫🇷 827 148 450ms 25 days ago 218th GolfingSuccess 🇬🇷 827 192 74ms 5 days ago 219th Aquateraneal 🇺🇸 826 141 20ms 5 days ago 220th h3ra993huskp 🇯🇵 826 173 397ms 25 days ago 221st Lv0Sys 🇵🇱 826 177 287ms 26 days ago 222nd edsrzf 🇳🇿 826 182 3ms 16 days ago 223rd emgordon154 822 58 44ms 25 days ago 224th edsrzf 🇳🇿 822 197 60ms 18 days ago 225th CaedenHarper 🇨🇦 821 178 276ms 26 Feb 2026 226th FlorianCassayre 🇫🇷 820 142 10ms 12 days ago 227th emgordon154 820 283 1,413ms 25 days ago 228th kg583 🇺🇸 818 194 74ms 7 days ago 229th IanUtley 814 131 14ms 3 days ago 230th jkelly467 814 137 2,677ms 24 days ago 231st BREMAUCY 🇫🇷 814 143 11ms 22 days ago 232nd Program-Pi 813 108 17ms 6 days ago 233rd GolfingSuccess 🇬🇷 813 125 2ms 19 Nov 2025 234th GolfingSuccess 🇬🇷 811 105 168ms 27 days ago 235th albanian-laundromat 811 171 4ms 28 Jan 2026 236th albanian-laundromat 809 177 196ms 18 days ago 237th albanian-laundromat 808 105 781ms 25 days ago 238th denkyuu1 807 82 41ms 41 hours ago 239th kmathis22 807 177 410ms 16 days ago 240th pardouin 🇫🇷 806 126 2ms 25 days ago First Prev 161–240 of 375 Next Last