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?
Medal Tally 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 lynn 796 217 194ms 11 Jul 2024 242nd GrayJoKing 🇦🇺 795 200 20ms 21 days ago 243rd SirBogman 🇺🇸 794 130 743ms 16 Jan 2024 243rd xsot 🇸🇬 794 130 456ms 7 Apr 2024 245th Shanethegamer 🇺🇸 794 172 429ms 7 Jun 2023 245th namelessiw 794 172 420ms 9 Apr 2025 247th nwellnhof 🇩🇪 793 110 14ms 19 Jun 2023 248th DialFrost 🇸🇬 793 117 1,319ms 3 Sep 2025 249th MeWhenI 🇻🇦 793 213 665ms 7 Nov 2025 250th inventshah 791 157 11ms 23 Sep 2023 251st MeWhenI 🇻🇦 791 197 133ms 12 Aug 2023 252nd revlayle 🇺🇸 790 173 427ms 6 Jun 2023 253rd edsrzf 🇳🇿 788 173 21ms 28 Oct 2025 254th Shanethegamer 🇺🇸 788 214 295ms 6 Jun 2023 255th sean-niemann 🇺🇸 787 154 160ms 6 Jan 2025 256th commandz0 🇺🇸 786 158 12ms 3 Jun 2023 257th amollberg 🇸🇪 781 159 13ms 4 Jan 2024 257th mathisfun271 781 159 30ms 9 Feb 2024 257th KatieLG 🇬🇧 781 159 12ms 7 Feb 2026 260th tobeannouncd 781 195 152ms 5 Jan 2024 261st sisyphus-ppcg 🇦🇺 779 99 39ms 1 Jun 2023 261st GrayJoKing 🇦🇺 779 99 36ms 5 Jun 2023 263rd voytxt 🇨🇿 779 153 13ms 3 Jun 2023 263rd Yax42 🇫🇷 779 153 11ms 20 Jan 2026 265th Shanethegamer 🇺🇸 779 163 2,703ms 26 Oct 2024 266th GrayJoKing 🇦🇺 776 133 489ms 6 Mar 2024 267th jeff-at-tamer-dot-codes 🇺🇸 776 160 11ms 1 Jun 2023 268th JOrE20 774 154 11ms 5 Feb 2026 269th SirBogman 🇺🇸 773 114 368ms 30 Dec 2023 270th tomtheisen 🇺🇸 772 177 422ms 6 Feb 2025 271st AlephSquirrel 771 161 11ms 1 Jun 2023 272nd kg583 🇺🇸 770 134 520ms 26 Jun 2024 273rd MeWhenI 🇻🇦 769 155 12ms 3 Jul 2023 274th edsrzf 🇳🇿 769 174 102ms 22 Aug 2025 275th SirBogman 🇺🇸 766 89 33ms 8 Jun 2025 276th celiendonze 🇨🇭 762 163 18ms 6 Jun 2023 276th shelerr 762 163 85ms 21 Aug 2025 278th Shanethegamer 🇺🇸 761 179 18ms 31 Oct 2024 279th ritwinnarra 757 164 17ms 11 Jun 2023 279th CommandLeo 🇮🇹 757 164 10ms 18 Jan 2026 281st BambooleanLogic 🇸🇪 754 158 11ms 27 Jun 2023 282nd Alex-x90 🇺🇸 754 219 454ms 11 May 2024 283rd emgordon154 753 137 725ms 22 Apr 2025 284th MeWhenI 🇻🇦 753 165 11ms 7 Dec 2023 285th duckyluuk 🇳🇱 751 169 2,871ms 26 Oct 2024 286th lynn 750 76 72ms 6 Jun 2023 287th DialFrost 🇸🇬 748 162 156ms 28 Oct 2024 288th MichalMarsalek 🇨🇿 748 166 12ms 1 Jun 2023 289th annaproxy 746 204 145ms 21 Aug 2023 290th DialFrost 🇸🇬 745 173 5ms 21 Feb 2024 291st inventshah 744 167 2ms 22 Jul 2024 292nd edsrzf 🇳🇿 744 169 13ms 21 days ago 293rd MeWhenI 🇻🇦 744 396 1,730ms 7 Nov 2025 294th GolfingSuccess 🇬🇷 743 139 501ms 20 Jan 2024 295th YAJUE114514 743 205 180ms 30 Jul 2025 296th MichalMarsalek 🇨🇿 742 200 452ms 12 Jun 2023 297th SirBogman 🇺🇸 741 104 36ms 14 Jan 2025 298th pardouin 🇫🇷 741 114 1,481ms 23 Sep 2025 299th dcgjb 741 119 346ms 3 May 2024 300th lyphyser 740 161 14ms 3 Jun 2023 300th alexsave 740 161 11ms 25 Dec 2025 302nd fourth-bit 739 168 32ms 11 Jul 2023 302nd StefanHabel 🇨🇦 739 168 13ms 8 days ago 304th DialFrost 🇸🇬 737 140 427ms 21 Feb 2024 305th MeWhenI 🇻🇦 737 227 3ms 12 Aug 2023 306th tayloia 🇬🇧 736 162 10ms 2 Jun 2023 306th itsh01 736 162 11ms 20 Jun 2023 306th targrik 736 162 11ms 22 Mar 2025 309th DialFrost 🇸🇬 731 163 10ms 4 Aug 2024 310th jared-hughes 731 170 11ms 18 Jun 2023 310th ahmetdemirag 🇨🇾 731 170 18ms 22 Feb 2025 312th Shanethegamer 🇺🇸 730 139 12ms 16 Dec 2023 313th snoozingnewt 🇨🇦 730 240 106ms 6 Dec 2025 314th scpchicken 🇵🇼 729 110 9ms 15 Nov 2023 315th edsrzf 🇳🇿 728 245 10ms 21 Feb 2025 316th LukeBridges 🇬🇧 727 164 10ms 28 Aug 2024 317th Shanethegamer 🇺🇸 727 176 1,047ms 22 Oct 2024 318th DialFrost 🇸🇬 727 182 468ms 10 Jul 2024 319th annaproxy 723 189 413ms 12 Jun 2023 320th Shanethegamer 🇺🇸 722 111 4ms 9 Jun 2023 First Prev 241–320 of 618 Next Last