The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 hours. 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 561st dokutan 404 328 13ms 20 Apr 2025 562nd dillon-duncando 400 331 12ms 30 Sep 2022 562nd Florian-Mt 400 331 15ms 20 Dec 2025 564th bidger 399 427 449ms 16 Nov 2022 565th dokutan 395 461 42ms 27 Aug 2024 566th inverseLorentz 🇦🇺 392 338 12ms 20 May 2024 567th tomh1012 388 317 164ms 13 Feb 2026 568th MeWhenI 🇻🇦 386 399 167ms 13 Jun 2022 569th IISResetMe 382 261 1,149ms 5 Mar 2024 570th janbehrens 🇩🇪 376 235 257ms 13 Jul 2022 571st atazzam 🇺🇸 372 356 12ms 12 Feb 2023 572nd jgbaldwinbrown 369 339 3ms 15 Sep 2022 573rd CatsAreFluffy 368 315 733ms 15 Jan 2024 574th RandGuy 367 361 24ms 30 Jun 2022 575th null-tangent 361 472 474ms 2 Aug 2022 576th KatieLG 🇬🇧 359 209 5ms 8 Nov 2025 577th msbranicky 358 475 118ms 8 Nov 2025 578th dokutan 355 327 417ms 29 Apr 2025 579th ian-h-chamberlain 🇺🇸 354 532 251ms 14 Jun 2022 580th dylanjones92 353 375 17ms 22 Jan 2024 581st madex 🇩🇪 352 534 244ms 19 Jul 2024 582nd SB-945 350 564 5ms 14 Nov 2025 583rd JOrE20 349 560 64ms 13 Feb 2026 584th IanUtley 348 370 21ms 23 Nov 2022 585th adamnielson42 🇺🇸 346 347 10ms 24 Apr 2023 586th GolfingSuccess 🇬🇷 344 493 1,145ms 12 Jun 2022 587th yzhs 🇩🇪 340 453 168ms 2 Jul 2023 588th Andrey2001 338 392 14ms 1 Feb 2026 589th madex 🇩🇪 334 288 37ms 19 Jul 2024 590th mathisfun271 328 404 28ms 16 Feb 2024 591st KatieLG 🇬🇧 327 215 9ms 23 Oct 2022 592nd dokutan 321 443 2,875ms 1 Feb 2026 593rd HumanoidCPU 320 414 19ms 16 Nov 2025 594th JOrE20 319 415 18ms 5 Jan 2026 595th MeWhenI 🇻🇦 315 255 167ms 13 Jun 2022 596th adamnielson42 🇺🇸 313 224 16ms 20 Feb 2024 597th dokutan 312 283 320ms 19 May 2024 598th msbranicky 308 381 7ms 19 Oct 2023 599th robin-scragg 306 433 22ms 25 Oct 2025 600th dokutan 301 471 445ms 11 Jan 2026 601st dokutan 298 420 3ms 11 Jan 2026 602nd dokutan 297 573 405ms 11 Jan 2026 603rd KevinMarquette 🇺🇸 288 346 338ms 17 Apr 2023 604th HumanoidCPU 287 404 654ms 16 Nov 2025 605th vhoulbreque 🇫🇷 283 468 14ms 17 Nov 2025 606th NoUselessTech 282 353 373ms 25 Jul 2022 607th dokutan 279 424 7ms 27 Dec 2025 608th sleepyStick 277 478 13ms 15 Jul 2022 609th galloj 🇨🇿 273 620 27ms 25 Apr 2024 610th KatieLG-Transpiler 🇬🇧 267 449 10ms 3 Nov 2022 611th KatieLG 🇬🇧 266 377 1,479ms 9 Oct 2022 612th msbranicky 264 454 2,899ms 11 Jan 2025 613th denkyuu1 252 381 38ms 3 days ago 614th dokutan 250 491 138ms 23 Jan 2026 615th ryanlanegit 248 402 418ms 22 Jun 2022 616th iczelia 🇩🇪 236 508 14ms 10 Oct 2025 617th KatieLG-Transpiler 🇬🇧 224 634 469ms 10 Nov 2022 618th KatieLG 🇬🇧 221 538 50ms 19 May 2024 619th dokutan 219 642 458ms 11 Jan 2026 620th HumanoidCPU 217 782 175ms 16 Nov 2025 621st KatieLG 🇬🇧 211 807 728ms 16 Jun 2024 622nd CgTranspiler 204 630 37ms 24 Jul 2022 623rd zt14427 193 687 13ms 27 Dec 2024 624th MeWhenI 🇻🇦 192 395 38ms 13 Jun 2022 625th scpchicken 🇵🇼 187 429 180ms 21 Oct 2022 626th dokutan 187 908 707ms 12 Jan 2026 627th KatieLG-Transpiler 🇬🇧 184 721 24ms 2 Jul 2022 628th KatieLG-Transpiler 🇬🇧 184 925 714ms 10 Jul 2022 629th dokutan 180 483 2ms 12 Jan 2026 630th blaztoma 🇱🇹 173 825 41ms 9 Nov 2025 631st KatieLG 🇬🇧 171 920 396ms 9 Nov 2022 632nd KatieLG-Transpiler 🇬🇧 159 630 1,321ms 3 Jul 2022 633rd KatieLG 🇬🇧 158 1,075 527ms 24 Jan 2023 634th blaztoma 🇱🇹 155 484 4ms 30 Oct 2025 635th KatieLG-Transpiler 🇬🇧 151 638 44ms 3 Jul 2022 636th dokutan 149 643 37ms 12 Jan 2026 637th Ralac07 🇦🇺 143 928 27ms 25 Nov 2025 638th KatieLG-Transpiler 🇬🇧 135 1,265 535ms 8 Jul 2022 639th dokutan 133 1,274 9ms 17 Oct 2023 640th SB-945 127 590 5ms 14 Nov 2025 First Prev 561–640 of 671 Next Last
