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 321st jeff-at-tamer-dot-codes 🇺🇸 804 82 12ms 26 Jul 2024 321st CopperyMarrow15 804 82 12ms 11 Aug 2025 321st Flekay 🇩🇪 804 82 12ms 11 Feb 2026 324th ovs-code 🇩🇪 804 127 475ms 31 Jul 2024 325th kg583 🇺🇸 804 147 46ms 10 Jun 2025 326th Steffan153 🇫🇮 803 70 141ms 6 Aug 2024 326th sean-niemann 🇺🇸 803 70 162ms 13 Jan 2025 328th ovs-code 🇩🇪 802 55 41ms 24 Jul 2024 328th nwellnhof 🇩🇪 802 55 38ms 27 Jul 2024 330th Shanethegamer 🇺🇸 802 107 125ms 16 Oct 2024 331st error256 800 92 26ms 29 Jul 2025 332nd stefangimmillaro 800 154 231ms 26 Aug 2024 333rd error256 799 79 13ms 4 Feb 2026 334th albanian-laundromat 799 132 12ms 14 Dec 2025 335th albanian-laundromat 799 183 68ms 15 days ago 336th GrayJoKing 🇦🇺 798 90 68ms 26 Jul 2024 337th emgordon154 797 91 521ms 27 May 2025 338th albanian-laundromat 796 176 278ms 18 Dec 2025 339th Shanethegamer 🇺🇸 794 75 509ms 28 Jul 2024 340th StardustGogeta 794 83 12ms 8 Sep 2024 341st MeWhenI 🇻🇦 794 137 13ms 25 Jul 2024 342nd stefangimmillaro 793 137 135ms 22 Aug 2024 343rd msbranicky 792 177 286ms 27 Aug 2024 344th tayloia 🇬🇧 789 80 11ms 25 Jul 2024 344th MeWhenI 🇻🇦 789 80 19ms 27 Jul 2024 344th olleicua 🇺🇸 789 80 14ms 27 Aug 2024 344th trinityy-7 789 80 11ms 23 Jul 2025 348th kg583 🇺🇸 789 99 22ms 5 days ago 349th emgordon154 788 56 38ms 25 Jul 2024 349th Shanethegamer 🇺🇸 788 56 54ms 25 Jul 2024 349th error256 788 56 55ms 25 Jul 2024 349th SirBogman 🇺🇸 788 56 38ms 29 Jul 2024 349th Andriamanitra 🇫🇮 788 56 42ms 29 Jul 2024 349th olleicua 🇺🇸 788 56 46ms 15 Aug 2024 349th D-MOVE 🇵🇭 788 56 42ms 15 Dec 2025 356th Steffan153 🇫🇮 787 109 118ms 25 Jul 2024 357th alemelis 785 62 1,083ms 6 Aug 2024 358th Natanaelel 🇸🇪 782 45 4ms 26 Jul 2024 358th Steffan153 🇫🇮 782 45 3ms 27 Aug 2024 358th primo-ppcg 🇹🇭 782 45 4ms 22 Jan 2025 361st stackofbears 781 33 33ms 2 Sep 2024 362nd JohandeRuiter 🇳🇱 780 109 3ms 11 Aug 2024 363rd LukeBridges 🇬🇧 779 81 16ms 26 Jul 2024 364th MeWhenI 🇻🇦 779 128 32ms 28 Jul 2024 365th Shanethegamer 🇺🇸 778 188 70ms 29 Jul 2024 366th HumanoidCPU 776 85 15ms 5 Nov 2024 367th TheZwierzLF 🇵🇱 774 57 43ms 25 Dec 2025 368th sean-niemann 🇺🇸 774 107 148ms 25 May 2025 369th MeWhenI 🇻🇦 773 111 122ms 25 Jul 2024 370th edsrzf 🇳🇿 770 123 30ms 18 days ago 371st error256 770 146 33ms 10 days ago 372nd voytxt 🇨🇿 769 82 17ms 16 Aug 2024 373rd SB-945 767 86 11ms 25 Jul 2024 374th nullshallot 766 65 421ms 4 Jan 2025 375th stefangimmillaro 766 183 307ms 27 Aug 2024 376th MeWhenI 🇻🇦 765 116 7ms 25 Jul 2024 376th dokutan 765 116 29ms 26 Jul 2024 376th Mabeloid 🇳🇴 765 116 13ms 21 Sep 2024 379th m-tkach 🇺🇦 763 78 548ms 25 Jul 2024 380th sean-niemann 🇺🇸 762 79 772ms 30 Jan 2026 381st targrik 762 89 7ms 10 days ago 382nd tomtheisen 🇺🇸 762 119 453ms 12 Dec 2024 383rd frankgraziano 761 72 43ms 9 Feb 2025 384th error256 761 127 1,332ms 22 May 2025 385th sean-niemann 🇺🇸 761 143 39ms 18 Jan 2025 386th Shanethegamer 🇺🇸 760 64 664ms 25 Jul 2024 386th MarcMush 🇫🇷 760 64 710ms 31 Jul 2024 388th uttumuttu 🇫🇮 760 83 16ms 23 Oct 2024 388th Lv0Sys 🇵🇱 760 83 11ms 23 Feb 2026 390th Shanethegamer 🇺🇸 759 97 150ms 25 Jul 2024 390th zacjl 759 97 28ms 21 Jan 2025 390th edsrzf 🇳🇿 759 97 51ms 18 Feb 2026 393rd DialFrost 🇸🇬 759 109 149ms 3 Jun 2025 394th primo-ppcg 🇹🇭 759 161 41ms 1 May 2025 395th dokutan 758 87 17ms 25 Jul 2024 396th edsrzf 🇳🇿 758 111 430ms 21 Aug 2025 397th MeWhenI 🇻🇦 758 117 4ms 25 Jul 2024 398th duckyluuk 🇳🇱 756 83 31ms 16 Dec 2024 399th Lydxn 🇨🇦 754 79 451ms 25 Jul 2024 399th ovs-code 🇩🇪 754 79 479ms 25 Jul 2024 First Prev 321–400 of 950 Next Last