The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 days. Why not try and solve them ahead of time?
99 Bottles of Beer in Python 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 880th r-i-c-e 289 409 10ms 8 Jul 2023 882nd connorwagner 288 410 10ms 26 Jun 2018 882nd DePopadopalis 288 410 10ms 6 Apr 2022 882nd Molliojing 288 410 11ms 29 Mar 2024 882nd ineedcookie 288 410 10ms 23 Apr 2024 886th fatcat2 286 413 10ms 3 Jan 2020 886th sevkun 286 413 13ms 5 Jun 2020 886th iihiro 🇯🇵 286 413 10ms 6 Jul 2022 886th Evytag 🇫🇷 286 413 17ms 9 Oct 2025 890th jbrry 284 415 11ms 29 Mar 2022 890th Nektar24 284 415 16ms 2 Jun 2023 890th jmjaggi1202 284 415 10ms 13 Dec 2023 893rd rahulbyte-js 284 416 9ms 25 Nov 2025 894th shinylego 283 417 12ms 17 Oct 2022 895th joel-e-m-mitchell 282 418 11ms 10 Jun 2018 895th SaberSwordBoy 282 418 9ms 23 Apr 2022 895th fredoinsilico 282 418 11ms 9 Sep 2023 898th SpielerNogard 280 421 10ms 13 Feb 2021 899th joe0400 280 422 10ms 7 Sep 2021 899th 4ndyJ 🇬🇧 280 422 17ms 29 Nov 2022 899th HanaEndUser 280 422 10ms 10 Jan 2024 899th JKfromHMS 280 422 10ms 20 May 2024 903rd Gadzillion 279 423 10ms 18 Apr 2021 904th ArturLange 278 424 9ms 31 Aug 2018 905th plainoldcheese 🇦🇶 275 429 12ms 16 Apr 2020 905th mm-news 275 429 11ms 1 Dec 2022 907th zuparnowa 274 430 16ms 29 Jan 2019 907th henrytranter 274 430 17ms 20 Sep 2019 907th Rago-Tony 274 430 10ms 20 Jun 2025 910th sadfun 274 431 10ms 29 Jan 2021 910th Shardscape1 274 431 11ms 1 Jan 2025 912th EthanGrant1 273 433 10ms 13 Apr 2022 912th dylanjones92 273 433 10ms 22 Jan 2024 914th felicksLindgren 272 434 10ms 13 Sep 2024 915th AgathokakologicalBit 271 435 9ms 26 Jul 2019 915th Xaevien 271 435 10ms 26 Aug 2021 917th MoonWatcher582 271 436 10ms 26 Apr 2018 917th CRHillman 271 436 17ms 16 Aug 2018 919th alexandre-lavoie 270 437 9ms 30 Jul 2020 919th BackslashWelsh 270 437 10ms 24 Jul 2021 921st GeryonDev 269 439 10ms 21 Oct 2021 922nd ktnguyen2 267 442 10ms 4 Jan 2020 922nd Bodo171 267 442 11ms 21 Nov 2022 924th jrm5399 🇰🇿 266 443 11ms 9 Sep 2022 924th bingbingcrosby 266 443 10ms 8 Oct 2022 924th brimstonetrader 266 443 11ms 17 Dec 2023 927th esaelo 266 444 11ms 13 Nov 2022 927th pythonNoobOz 266 444 10ms 7 Jun 2023 929th Tagfox 265 446 11ms 16 Jul 2022 930th luxdragon 262 450 10ms 12 Oct 2022 931st halp1 262 451 11ms 7 Apr 2022 932nd babulibaba 260 454 9ms 15 Aug 2019 932nd atazzam 🇺🇸 260 454 10ms 4 Mar 2022 934th Cynopolis 259 455 10ms 16 Oct 2023 935th OliverLunn 259 456 10ms 11 Sep 2024 936th kenballus 258 457 11ms 21 Jan 2022 936th Bitdragon50 258 457 9ms 12 Sep 2023 938th Niitrogen 256 461 10ms 17 Jan 2020 939th StoverGitHub 255 463 10ms 16 Jun 2022 940th wazawoo 253 467 9ms 21 Oct 2018 941st arinhyther 252 468 9ms 16 Jan 2023 942nd Luc201 252 469 10ms 13 Oct 2018 943rd goGuru 251 470 10ms 17 Dec 2022 944th zyc-2024 🇨🇳 249 474 9ms 5 Oct 2024 945th bhaanukaul 248 476 10ms 10 May 2020 946th Zhenyu-Bo 247 477 10ms 1 Aug 2025 947th JuanMHuerta 247 478 11ms 11 Feb 2022 948th t1819 246 480 10ms 6 Feb 2019 948th codingthemultiverse 246 480 12ms 20 hours ago 950th tmanternach 245 481 10ms 23 Nov 2022 951st archieduffin 243 486 10ms 17 Dec 2021 952nd Yahiamice 240 492 10ms 30 Jul 2024 953rd W20002026 239 494 10ms 13 Sep 2023 954th HAV0C101 237 497 10ms 5 Mar 2021 954th Thestralos 237 497 10ms 18 Apr 2023 956th christensendaniel 237 498 10ms 12 Apr 2023 957th Rtb31 236 499 11ms 9 Jun 2020 957th DraagDunk 236 499 9ms 1 Dec 2025 959th WCScrypto-official 232 508 11ms 21 Dec 2024 960th poklj 231 511 10ms 16 Nov 2020 First Prev 881–960 of 1,102 Next Last
