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?
Transpose Sentence 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 475th xnor-gate 717 92 37ms 27 Jul 2024 475th Alex-x90 🇺🇸 717 92 44ms 27 Jul 2024 475th AlephSquirrel 717 92 19ms 28 Jul 2024 475th MichalMarsalek 🇨🇿 717 92 20ms 28 Jul 2024 475th xsot 🇸🇬 717 92 12ms 28 Jul 2024 475th GrayJoKing 🇦🇺 717 92 12ms 28 Jul 2024 475th cros107 🇦🇺 717 92 28ms 28 Jul 2024 475th Andriamanitra 🇫🇮 717 92 28ms 29 Jul 2024 475th Kacarott 🇦🇺 717 92 35ms 30 Jul 2024 475th alemelis 717 92 34ms 2 Aug 2024 475th draem 717 92 23ms 3 Aug 2024 475th kops-cg 717 92 29ms 18 Feb 2025 475th Natanaelel 🇸🇪 717 92 33ms 24 Apr 2025 475th ryyyn 🇺🇸 717 92 19ms 30 Oct 2025 475th blaztoma 🇱🇹 717 92 13ms 4 days ago 496th 4hg 🇺🇸 716 36 33ms 5 Oct 2024 497th UnderKoen 🇳🇱 716 161 12ms 26 Mar 2025 498th stefangimmillaro 715 140 599ms 6 Oct 2025 498th Jacob385 715 140 485ms 27 Oct 2025 498th MeWhenI 🇻🇦 715 140 626ms 7 Nov 2025 498th h3ra993huskp 🇯🇵 715 140 402ms 30 Nov 2025 502nd akamayu-ouo 🇹🇼 714 32 3ms 30 Jul 2024 502nd CornerMercury 🇬🇧 714 32 3ms 11 days ago 504th Shanethegamer 🇺🇸 714 95 135ms 28 Jul 2024 505th stefangimmillaro 714 127 428ms 22 Aug 2024 506th GolfingSuccess 🇬🇷 714 143 450ms 10 Dec 2025 507th janAkali 🇷🇺 713 118 433ms 11 days ago 508th emgordon154 712 133 25ms 25 days ago 509th MeWhenI 🇻🇦 711 70 522ms 25 Jul 2024 510th Shanethegamer 🇺🇸 710 141 393ms 24 Sep 2025 510th dokutan 710 141 397ms 9 Nov 2025 512th GolfingSuccess 🇬🇷 709 67 8ms 16 Oct 2024 513th MichalMarsalek 🇨🇿 709 84 449ms 28 Jul 2024 514th stefangimmillaro 709 89 11ms 21 Sep 2024 514th xyangst 709 89 17ms 12 Oct 2024 514th HumanoidCPU 709 89 13ms 5 Nov 2024 514th jake6192 709 89 12ms 17 May 2025 518th bzijlema 🇳🇱 709 93 40ms 25 Oct 2025 519th snyderek 🇺🇸 709 144 453ms 8 Dec 2024 520th GolfingSuccess 🇬🇷 708 120 7ms 24 Jul 2024 520th Steffan153 🇫🇮 708 120 8ms 25 Jul 2024 522nd tomh1012 708 128 448ms 25 Jul 2024 523rd jerrandolph 708 198 293ms 21 Sep 2025 524th Ripick 707 119 368ms 6 Jun 2025 525th jkelly467 705 142 439ms 19 Dec 2025 526th GrayJoKing 🇦🇺 703 80 198ms 13 Aug 2024 527th Shanethegamer 🇺🇸 703 129 433ms 25 Jul 2024 527th MeWhenI 🇻🇦 703 129 416ms 25 Jul 2024 529th Yewzir 🇧🇪 702 94 13ms 15 Nov 2025 530th dokutan 701 85 388ms 25 Jul 2024 531st gigaprofisi 🇺🇸 701 90 16ms 10 Aug 2025 531st albanian-laundromat 701 90 14ms 21 Dec 2025 533rd dokutan 700 86 1,045ms 7 Sep 2025 534th snoozingnewt 🇨🇦 698 161 42ms 9 days ago 535th DialFrost 🇸🇬 696 74 1,324ms 10 Apr 2025 536th Protothor 693 91 11ms 13 Jun 2025 537th Waffle3z 693 128 2ms 8 Aug 2024 538th Carlettos1 693 178 275ms 31 Jul 2024 539th tailorspy 690 148 471ms 23 Oct 2024 540th MeWhenI 🇻🇦 690 177 57ms 29 Apr 2025 541st dokutan 690 203 294ms 3 Aug 2025 542nd msbranicky 689 158 48ms 27 Aug 2024 543rd GolfingSuccess 🇬🇷 687 96 27ms 24 Jul 2024 543rd commandz0 🇺🇸 687 96 14ms 25 Jul 2024 543rd ahmetdemirag 🇨🇾 687 96 14ms 25 Jul 2024 543rd ZakkkkAttackkkk 🇵🇭 687 96 30ms 25 Jul 2024 543rd bob-th 687 96 28ms 26 Jul 2024 543rd OllieBoyne 🇬🇧 687 96 14ms 26 Jul 2024 543rd TobyBoyne 🇬🇧 687 96 27ms 26 Jul 2024 543rd firegene 🇮🇪 687 96 26ms 28 Jul 2024 543rd SirBogman 🇺🇸 687 96 14ms 28 Jul 2024 543rd scpchicken 🇵🇼 687 96 27ms 31 Jul 2024 543rd btjones0 687 96 14ms 25 Aug 2024 543rd BlankSpruce 687 96 12ms 26 Aug 2024 543rd wh3n3v3r 🇨🇿 687 96 12ms 8 Nov 2024 543rd stefangimmillaro 687 96 13ms 20 Dec 2024 543rd klixel 🇨🇦 687 96 26ms 30 Dec 2024 543rd moustave 687 96 13ms 6 Jan 2025 543rd munchsaga 687 96 30ms 13 Jan 2025 543rd croc54 687 96 15ms 19 Jan 2025 First Prev 481–560 of 950 Next Last