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?
Scrambled Sort 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 241st kg583 🇺🇸 786 173 50ms 4 Oct 2025 242nd Shanethegamer 🇺🇸 783 107 15ms 31 May 2025 243rd emgordon154 783 110 2,810ms 31 May 2025 243rd Shanethegamer 🇺🇸 783 110 2,695ms 31 May 2025 245th Shanethegamer 🇺🇸 783 129 528ms 31 May 2025 245th sean-niemann 🇺🇸 783 129 501ms 6 Dec 2025 247th UnderKoen 🇳🇱 782 178 27ms 2 Jun 2025 248th tailorspy 782 238 1,424ms 11 Jun 2025 249th sean-niemann 🇺🇸 781 193 12ms 1 Nov 2025 250th Natanaelel 🇸🇪 780 110 10ms 2 May 2025 251st stefangimmillaro 780 243 277ms 6 Jun 2025 252nd Andriamanitra 🇫🇮 779 139 125ms 7 Jun 2025 253rd duckyluuk 🇳🇱 776 77 456ms 30 May 2025 253rd MeWhenI 🇻🇦 776 77 488ms 2 Jun 2025 255th edsrzf 🇳🇿 773 254 11ms 15 days ago 256th jipsong 🇩🇪 772 122 88ms 10 Jun 2025 257th canissimia 🇦🇶 772 265 254ms 11 Jun 2025 258th SirBogman 🇺🇸 771 69 808ms 5 Jul 2025 259th snoozingnewt 🇨🇦 771 131 527ms 6 Dec 2025 260th plcc0 769 31 3ms 13 Jan 2026 261st KatieLG 🇬🇧 769 62 36ms 2 Oct 2025 262nd Natanaelel 🇸🇪 768 141 128ms 1 Jun 2025 263rd MarcMush 🇫🇷 766 73 1,211ms 18 Oct 2025 264th commandz0 🇺🇸 766 78 522ms 1 Sep 2025 265th Lv0Sys 🇵🇱 766 112 12ms 21 Feb 2026 266th iczelia 🇩🇪 763 142 128ms 19 Oct 2025 267th edsrzf 🇳🇿 763 454 1,711ms 3 Jun 2025 268th MeWhenI 🇻🇦 762 470 138ms 30 Nov 2025 269th annaproxy 761 171 23ms 26 Aug 2025 270th edsrzf 🇳🇿 758 57 126ms 17 Jan 2026 271st error256 757 63 40ms 2 Jun 2025 271st olleicua 🇺🇸 757 63 38ms 4 Jun 2025 271st Matter1024 🇮🇳 757 63 38ms 15 Nov 2025 274th edsrzf 🇳🇿 753 89 62ms 15 Dec 2025 275th ovs-code 🇩🇪 753 114 10ms 1 Jun 2025 276th ian-h-chamberlain 🇺🇸 752 195 309ms 6 Jan 2026 277th nullie 749 196 326ms 4 Jul 2025 278th CaedenHarper 🇨🇦 747 80 467ms 11 Jun 2025 279th albanian-laundromat 746 179 19ms 3 Jul 2025 280th Natanaelel 🇸🇪 745 58 4,313ms 7 Jun 2025 281st ovs-code 🇩🇪 744 90 30ms 2 May 2025 281st nwellnhof 🇩🇪 744 90 32ms 8 Jun 2025 283rd snoozingnewt 🇨🇦 744 162 126ms 6 Dec 2025 284th edsrzf 🇳🇿 740 116 11ms 6 Jun 2025 285th SirBogman 🇺🇸 738 81 478ms 30 Jun 2025 286th jipsong 🇩🇪 736 117 2,721ms 9 Jun 2025 287th KasperKivimaeki 🇫🇮 736 253 2,944ms 14 Dec 2025 288th HumanoidCPU 735 91 12ms 26 Nov 2025 289th janAkali 🇷🇺 735 127 388ms 14 days ago 290th BREMAUCY 🇫🇷 734 65 38ms 3 Jun 2025 291st MeWhenI 🇻🇦 734 117 13ms 14 Jun 2025 292nd emgordon154 732 67 38ms 6 Jun 2025 293rd Lv0Sys 🇵🇱 732 138 517ms 12 Dec 2025 294th MeWhenI 🇻🇦 730 211 540ms 7 Nov 2025 295th edsrzf 🇳🇿 729 197 5ms 18 Jun 2025 296th bizy-coder 727 92 11ms 28 Dec 2024 296th btnlq 727 92 11ms 29 Dec 2024 296th bricknellj 727 92 11ms 6 Feb 2025 296th commandz0 🇺🇸 727 92 10ms 23 Feb 2025 296th AlephSquirrel 727 92 11ms 23 Feb 2025 296th 4atj 727 92 12ms 10 Apr 2025 296th Natanaelel 🇸🇪 727 92 11ms 2 May 2025 296th zacjl 727 92 11ms 28 May 2025 296th lynn 727 92 12ms 31 May 2025 296th stefangimmillaro 727 92 11ms 31 May 2025 296th Shanethegamer 🇺🇸 727 92 11ms 31 May 2025 296th cros107 🇦🇺 727 92 11ms 1 Jun 2025 296th Kacarott 🇦🇺 727 92 12ms 1 Jun 2025 296th xsot 🇸🇬 727 92 11ms 1 Jun 2025 296th error256 727 92 12ms 1 Jun 2025 296th MeWhenI 🇻🇦 727 92 11ms 2 Jun 2025 296th inventshah 727 92 11ms 3 Jun 2025 296th bzijlema 🇳🇱 727 92 13ms 3 Jun 2025 296th moustave 727 92 11ms 3 Jun 2025 296th orthoplex 🇨🇽 727 92 11ms 3 Jun 2025 296th Bulmenisaurus 727 92 11ms 5 Jun 2025 296th edsrzf 🇳🇿 727 92 12ms 5 Jun 2025 296th jipsong 🇩🇪 727 92 11ms 6 Jun 2025 296th btjones0 727 92 11ms 20 Jun 2025 296th cefqrn 727 92 12ms 28 Jun 2025 First Prev 241–320 of 639 Next Last