The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 95 mins. Why not try and solve them ahead of time?
Zodiac Signs 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 401st ahmetdemirag 🇨🇾 673 197 14ms 19 Nov 2024 402nd MeWhenI 🇻🇦 673 316 1,678ms 7 Nov 2025 403rd Shanethegamer 🇺🇸 670 281 232ms 16 Oct 2022 404th MeWhenI 🇻🇦 669 105 8ms 14 Jun 2022 405th TobyBoyne 🇬🇧 669 198 12ms 19 Jul 2022 406th inventshah 669 253 51ms 22 Sep 2022 407th jacekwladzinski 666 199 11ms 7 Oct 2025 408th CaedenHarper 🇨🇦 666 250 297ms 29 Oct 2025 409th Shanethegamer 🇺🇸 665 131 3ms 8 Nov 2022 410th Shanethegamer 🇺🇸 665 203 112ms 14 Oct 2022 411th vang1ong7ang 663 284 162ms 8 hours ago 412th btjones0 662 200 12ms 15 Jul 2022 413th retrohun 661 182 234ms 19 Jun 2022 414th scpchicken 🇵🇼 659 182 12ms 14 Jan 2023 414th weliveinhell 🇭🇹 659 182 11ms 4 Dec 2023 416th jakobkordez 🇸🇮 659 201 31ms 27 Oct 2022 417th albanian-laundromat 659 479 13ms 25 Nov 2025 418th MeWhenI 🇻🇦 657 165 1,197ms 15 Sep 2025 419th retrohun 656 202 11ms 11 Nov 2025 420th albanian-laundromat 653 197 5ms 20 Feb 2026 421st CaedenHarper 🇨🇦 653 302 3ms 7 Nov 2025 422nd CaedenHarper 🇨🇦 652 178 538ms 15 Aug 2025 423rd MeWhenI 🇻🇦 650 226 43ms 29 Apr 2025 424th olleicua 🇺🇸 649 304 3ms 8 Nov 2025 425th niklv 🇷🇺 648 185 13ms 29 Jul 2022 426th Shanethegamer 🇺🇸 647 116 4ms 12 Dec 2022 427th MeWhenI 🇻🇦 646 199 4ms 21 Jul 2023 428th alexsave 645 186 12ms 5 Jan 2026 429th annaproxy 642 221 440ms 11 Jun 2022 430th luuumine 🇫🇷 640 207 14ms 9 Nov 2025 431st JOrE20 638 188 11ms 21 Feb 2026 432nd MeWhenI 🇻🇦 637 286 46ms 4 Sep 2024 433rd mrnomm 634 209 11ms 12 Aug 2022 433rd olleicua 🇺🇸 634 209 19ms 7 Nov 2025 435th MeWhenI 🇻🇦 632 192 100ms 12 Dec 2022 436th elgan65536 🇺🇸 632 298 220ms 9 Apr 2024 437th CaedenHarper 🇨🇦 630 270 413ms 9 days ago 438th janbehrens 🇩🇪 628 211 21ms 17 Jun 2023 439th stefangimmillaro 627 207 9ms 4 Sep 2023 440th MeWhenI 🇻🇦 626 208 111ms 6 Nov 2023 441st MeWhenI 🇻🇦 625 225 442ms 12 Jun 2022 442nd commandz0 🇺🇸 616 215 13ms 7 Sep 2022 442nd jatloe 616 215 328ms 23 Oct 2024 442nd BREMAUCY 🇫🇷 616 215 14ms 21 Aug 2025 445th Salutations45 612 196 9ms 16 Nov 2024 446th TheZwierzLF 🇵🇱 611 190 535ms 14 Dec 2025 447th MeWhenI 🇻🇦 611 197 200ms 18 Nov 2023 448th TheZwierzLF 🇵🇱 611 217 19ms 14 Dec 2025 449th celiendonze 🇨🇭 608 218 13ms 29 Mar 2023 450th MeWhenI 🇻🇦 608 229 10ms 6 Aug 2023 451st didion0 🇺🇸 603 199 15ms 10 Jun 2022 451st C0de5mith 🇺🇸 603 199 13ms 7 Aug 2022 451st KatieLG 🇬🇧 603 199 11ms 7 Feb 2024 451st acollett89 603 199 11ms 4 Aug 2025 455th MeWhenI 🇻🇦 603 524 15ms 1 Aug 2023 456th aglahir1 602 220 12ms 20 Jul 2022 457th plcc0 599 134 177ms 29 Dec 2025 458th Mabeloid 🇳🇴 599 209 2ms 6 Oct 2024 459th fkantelberg 597 222 14ms 21 Jul 2025 460th plcc0 595 126 4ms 29 Dec 2025 461st MeWhenI 🇻🇦 593 149 275ms 15 Feb 2023 462nd MeWhenI 🇻🇦 591 203 2,498ms 27 Oct 2024 463rd janbehrens 🇩🇪 591 240 410ms 24 Apr 2023 463rd CaedenHarper 🇨🇦 591 240 408ms 17 Oct 2025 465th coreynash 588 204 12ms 14 Mar 2024 466th CaedenHarper 🇨🇦 588 289 115ms 7 Nov 2025 467th janbehrens 🇩🇪 585 205 13ms 24 Jun 2022 468th adamnielson42 🇺🇸 584 227 12ms 25 Apr 2023 469th KatieLG 🇬🇧 583 165 34ms 29 Aug 2024 470th snoozingnewt 🇨🇦 580 293 138ms 8 Nov 2025 471st AlephSquirrel 579 225 65ms 1 Dec 2025 472nd janbehrens 🇩🇪 579 294 487ms 12 Sep 2022 473rd BambooleanLogic 🇸🇪 574 209 13ms 28 Jul 2022 474th MeWhenI 🇻🇦 573 258 1,435ms 13 Jun 2022 475th snoozingnewt 🇨🇦 573 341 28ms 21 Nov 2025 476th MeWhenI 🇻🇦 570 330 170ms 13 Jun 2022 477th MeWhenI 🇻🇦 569 209 9ms 19 Jul 2022 478th abt8601 🇹🇼 569 233 20ms 15 Jul 2022 479th nephila-nacrea 🇬🇧 564 133 5ms 3 Jul 2023 480th Pyroan 564 235 20ms 22 Jan 2026 First Prev 401–480 of 671 Next Last