The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 2 days. Why not try and solve them ahead of time?
12 Days of Christmas 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 ivan-pi 🇸🇮 817 556 38ms 23 Apr 2020 322nd AnAwesomGuy 816 378 412ms 10 Jan 2026 323rd primo-ppcg 🇹🇭 810 327 242ms 20 May 2020 324th niklv 🇷🇺 806 267 11ms 28 Dec 2023 325th Yewzir 🇧🇪 805 477 6ms 16 Dec 2024 326th cure-honey 🇯🇵 804 565 40ms 28 Apr 2020 327th MeWhenI 🇻🇦 803 230 36ms 25 Jul 2023 328th snoozingnewt 🇨🇦 803 477 5ms 13 Dec 2025 329th vgamula 🇺🇦 803 562 30ms 29 Sep 2023 330th emgordon154 803 618 1,722ms 19 Sep 2025 331st duckyluuk 🇳🇱 802 479 7ms 5 Feb 2025 332nd Yewzir 🇧🇪 801 489 3ms 14 May 2023 333rd dokutan 801 725 11ms 17 Oct 2024 334th BBoehm 🇩🇪 800 269 13ms 11 Feb 2021 334th bac0id 800 269 14ms 26 Jun 2024 336th ovs-code 🇩🇪 799 382 3ms 28 Nov 2024 337th Steffan153 🇫🇮 798 237 30ms 21 Feb 2026 338th BREMAUCY 🇫🇷 798 481 6ms 15 Jan 2025 339th albanian-laundromat 795 482 1ms 14 Nov 2025 340th kacogg5 794 238 10ms 9 Jul 2022 341st HolmDev 792 400 124ms 9 Sep 2025 342nd ToriTheChicken 791 272 11ms 1 Aug 2020 343rd Sakisan 🇧🇪 791 442 1,026ms 22 Oct 2022 344th snoozingnewt 🇨🇦 790 215 75ms 2 Oct 2023 345th AdrienHache 🇫🇷 790 310 425ms 18 Dec 2024 346th jinwoo 789 572 28ms 29 Apr 2023 347th trinityy-7 788 273 10ms 5 Oct 2023 347th KatieLG 🇬🇧 788 273 11ms 5 Oct 2025 349th nathanadams 🇳🇿 786 274 10ms 24 Aug 2021 349th LukeBridges 🇬🇧 786 274 10ms 15 Aug 2024 351st Steffan153 🇫🇮 785 236 418ms 26 Feb 2026 352nd weliveinhell 🇭🇹 783 275 10ms 25 Dec 2023 352nd dokutan 783 275 10ms 23 Apr 2025 354th frankgraziano 782 546 6ms 9 Feb 2026 355th egertaia 780 276 10ms 9 Jan 2026 356th tomtheisen 🇺🇸 780 314 419ms 30 Jan 2023 357th beirigo 🇧🇷 779 237 35ms 17 Jul 2024 358th DialFrost 🇸🇬 777 286 3ms 5 Feb 2023 359th frankgraziano 776 454 3ms 19 Dec 2024 360th frobinsonj 774 278 11ms 6 Dec 2019 360th alexsave 774 278 10ms 13 Nov 2024 362nd lifthrasiir 🇰🇷 774 394 2ms 28 Nov 2024 363rd mlugg 774 641 1,653ms 10 Aug 2024 364th snoozingnewt 🇨🇦 773 507 4ms 3 Jan 2024 364th HumanoidCPU 773 507 4ms 14 Mar 2024 364th neel11235813 773 507 4ms 16 Mar 2024 364th emgordon154 773 507 4ms 3 Jan 2025 368th MeWhenI 🇻🇦 771 643 1,678ms 7 Nov 2025 369th msbranicky 770 509 4ms 25 Dec 2023 370th SirBogman 🇺🇸 767 203 5ms 8 Dec 2019 371st 2bular 767 398 2ms 9 Dec 2025 372nd olivermrose 🇺🇸 766 241 38ms 21 Sep 2021 373rd PatrickStephansen 🇿🇦 766 281 10ms 5 Mar 2021 373rd itserasmus 766 281 10ms 25 Jan 2024 375th lynn 765 399 2ms 25 Jan 2022 376th MWI-polygolf 765 512 4ms 7 Dec 2023 377th geofft 764 461 2ms 12 Dec 2020 378th MeWhenI 🇻🇦 762 248 10ms 28 Oct 2021 379th msbranicky 762 651 1,663ms 17 Sep 2025 380th a6166231 🇨🇳 758 284 11ms 22 Apr 2025 381st prplz 🇦🇺 756 408 441ms 13 Oct 2020 382nd janbehrens 🇩🇪 756 466 2ms 5 Aug 2021 383rd shreevatsa 756 487 7ms 26 Dec 2023 384th neil-ennis 🇦🇺 756 593 2ms 29 Dec 2020 385th SirBogman 🇺🇸 755 404 2ms 3 Nov 2022 385th MeWhenI 🇻🇦 755 404 2ms 27 May 2024 387th KatieLG 🇬🇧 753 245 37ms 2 Oct 2025 388th TFeld00 🇩🇰 753 251 17ms 4 Nov 2020 388th ovs-code 🇩🇪 753 251 11ms 23 Oct 2021 388th blaztoma 🇱🇹 753 251 10ms 5 Oct 2025 391st HumanoidCPU 753 295 3ms 20 Nov 2025 392nd ms0rgn 753 468 2ms 26 Apr 2018 393rd btnlq 751 246 264ms 14 Mar 2021 393rd dcgjb 751 246 409ms 18 Mar 2024 395th dscholtz-lab49 751 469 3ms 1 Jun 2023 396th orthoplex 🇨🇽 750 252 11ms 9 Oct 2022 397th Protothor 750 287 13ms 19 days ago 398th andersk 🇺🇸 750 470 2ms 26 Mar 2020 398th idavidka 🇭🇺 750 470 3ms 1 Jun 2023 400th GolfingSuccess 🇬🇷 748 408 2ms 13 Jan 2022 First Prev 321–400 of 4,056 Next Last
