The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 53 mins. Why not try and solve them ahead of time?
Christmas Trees 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 721st bkshrader 474 114 9ms 19 Mar 2019 721st ieeemma 474 114 9ms 31 Jul 2019 721st mortimervonchappuis 474 114 10ms 7 Mar 2020 721st pyrolitic 🇮🇪 474 114 10ms 7 Apr 2022 721st bingbingcrosby 474 114 10ms 8 Oct 2022 721st hotmanga 474 114 10ms 17 Oct 2023 721st xbxbxb007 474 114 10ms 10 Jan 2024 728th connorwagner 470 115 10ms 26 Jun 2018 728th ktnguyen2 470 115 9ms 4 Jan 2020 728th GreenyNeko 470 115 10ms 24 Jul 2020 731st Maxou73 466 116 9ms 16 Jun 2022 731st kevinnaviapaiva 466 116 10ms 12 Feb 2025 733rd newc0m 462 117 10ms 15 Dec 2018 733rd plasmaofthedawn 462 117 10ms 19 Feb 2019 733rd befoster 462 117 9ms 10 Apr 2021 733rd shibacho 🇯🇵 462 117 10ms 18 Mar 2022 733rd Zach10za 462 117 11ms 29 Nov 2022 733rd muser-logiccpu 🇺🇦 462 117 10ms 9 Aug 2025 739th hardlyBearable 458 118 10ms 12 May 2019 739th SchmulRosenzwe1g 458 118 10ms 2 Mar 2021 739th arinhyther 458 118 10ms 16 Jan 2023 739th eddvrs 458 118 9ms 20 Dec 2023 739th JoaoFelipe3 458 118 10ms 15 Jan 2024 739th Hyperoplex145 458 118 9ms 9 Nov 2025 745th raymond-li16 454 119 10ms 10 Jul 2020 745th keegan-t 🇨🇦 454 119 11ms 18 Sep 2021 745th StoverGitHub 454 119 10ms 15 Jun 2022 745th LeoTheMiner12 454 119 9ms 12 Jul 2025 749th ramonmedeiros 450 120 10ms 15 Dec 2020 749th Techno504 450 120 9ms 22 Sep 2021 751st ArturLange 446 121 10ms 17 Apr 2020 751st sli-Lut 446 121 9ms 11 Oct 2023 753rd mkski 439 123 10ms 9 Jun 2019 753rd MattUDCompSci 439 123 9ms 22 Sep 2022 755th jmjaggi1202 435 124 10ms 13 Dec 2023 756th fabs1 432 125 9ms 22 Mar 2019 756th dcure73 432 125 9ms 7 Jun 2019 756th cross 432 125 10ms 9 Nov 2024 756th Rago-Tony 432 125 9ms 24 Jun 2025 756th plopa1 432 125 10ms 15 Sep 2025 761st cseiter 429 126 10ms 22 Jun 2022 761st sgaltair 429 126 10ms 22 Feb 2023 763rd ClasherKasten-zz 425 127 10ms 3 May 2020 763rd jackdonofrio 425 127 9ms 25 Sep 2020 763rd freerainboxbox 425 127 9ms 23 Jul 2021 763rd AleksKnezevic 425 127 10ms 21 Feb 2024 767th Nick-Sullivan 422 128 10ms 12 Dec 2021 767th Rambso 422 128 9ms 19 Feb 2023 769th niallcurtis 419 129 10ms 8 Dec 2020 769th Nibamot 419 129 11ms 17 Dec 2021 771st anclrii 415 130 9ms 14 Feb 2023 772nd Guptacos 412 131 10ms 29 Mar 2021 772nd Creator-land 412 131 10ms 30 Nov 2023 774th zstearman3 406 133 9ms 23 Apr 2020 774th JackSealy 406 133 10ms 17 Feb 2021 776th jgermain48 403 134 10ms 9 Dec 2019 776th TheBitShepherd 403 134 10ms 5 Apr 2021 776th JakeI 403 134 10ms 15 Jun 2021 779th chris3145 397 136 9ms 30 Jun 2022 780th Dejgz 394 137 9ms 11 Sep 2023 781st AreYouW 391 138 10ms 6 Dec 2019 782nd CRHillman 388 139 10ms 17 Aug 2018 782nd rowboat1 388 139 10ms 10 Jun 2022 782nd alfonsoalves 388 139 10ms 21 Jul 2024 785th jhawk101 380 142 10ms 12 Mar 2021 786th Crito02 378 143 10ms 2 Mar 2021 787th Thive-N 372 145 10ms 10 Oct 2020 788th DGipe 370 146 9ms 2 Dec 2022 789th dylanjones92 367 147 9ms 22 Jan 2024 790th jcrutle 362 149 10ms 30 Mar 2021 790th MiranDaniel 🇨🇿 362 149 10ms 30 Aug 2023 792nd jimenez20 360 150 10ms 16 Dec 2019 792nd elekktrozone 360 150 10ms 6 Dec 2021 792nd NoneTheFewer 360 150 10ms 25 Dec 2025 795th warrinerbros 358 151 10ms 7 Dec 2021 796th oAsAo 355 152 11ms 21 Jan 2020 797th TheAtrossian 348 155 10ms 5 Jan 2025 798th jersonjgarcia 335 161 10ms 22 Sep 2020 799th Crankbrother 333 162 10ms 26 Jun 2020 800th tmanternach 325 166 10ms 23 Nov 2022 First Prev 721–800 of 850 Next Last
