The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 days. Why not try and solve them ahead of time?
Poker 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 81st knutae 🇳🇴 339 404 23ms 4 Oct 2022 82nd Yewzir 🇧🇪 338 405 19ms 5 Jun 2024 83rd andrewjc2000 337 406 18ms 7 Jul 2025 84th RYNO8 336 408 12ms 22 Aug 2023 85th evan18c 331 414 14ms 27 Apr 2025 86th commandz0 🇺🇸 330 415 11ms 3 Nov 2022 87th InigoK 🇺🇸 329 416 17ms 23 Aug 2025 88th guilhem-roy 🇫🇷 325 421 30ms 3 Mar 2022 88th nullie 325 421 18ms 8 Oct 2024 88th CaedenHarper 🇨🇦 325 421 17ms 6 Nov 2025 91st bknower 325 422 13ms 30 Jun 2025 92nd adamnielson42 🇺🇸 318 431 11ms 3 Apr 2023 93rd za3k 315 435 11ms 16 Oct 2022 94th marcin7Cd 314 436 22ms 14 Dec 2020 95th wrhm 310 442 17ms 14 Dec 2020 96th Bonjour27891 🇻🇳 309 444 19ms 19 Mar 2022 97th AstroOrbis 307 446 10ms 15 Feb 2026 98th alangodfrey 304 451 11ms 31 Jan 2019 98th CedricGebistorf 304 451 11ms 4 May 2023 100th roguh 🇬🇹 302 453 13ms 11 Jan 2024 101st thomasklunker 302 454 18ms 3 Feb 2023 102nd jfallon1997 300 457 11ms 17 Aug 2022 103rd sambirnbaum1 299 458 14ms 6 Sep 2019 103rd croc54 299 458 21ms 4 Feb 2025 103rd Emutis 🇱🇹 299 458 12ms 6 Sep 2025 106th rsgray 295 465 16ms 10 Feb 2024 107th cros107 🇦🇺 293 468 21ms 8 Feb 2025 108th jtaxen 288 476 21ms 23 May 2024 109th StefanHabel 🇨🇦 283 484 18ms 25 days ago 110th xkacer 🇨🇿 281 488 19ms 31 Jan 2021 110th mbittner20 281 488 12ms 27 May 2023 112th rollershutter 278 493 18ms 20 Mar 2025 113th amollberg 🇸🇪 275 498 22ms 16 Jan 2022 114th msbranicky 275 499 19ms 15 Jul 2023 115th msrawson 273 501 12ms 31 Aug 2018 116th tomh1012 268 511 18ms 22 days ago 117th twocatsinatrenchcoat 267 513 12ms 16 Apr 2022 118th vonKrafft 258 530 12ms 26 Mar 2020 119th mathisfun271 258 532 19ms 17 Feb 2024 120th janga1 256 535 17ms 20 Aug 2021 121st hyvyys 255 538 38ms 15 Jul 2019 122nd nfl-odoo 249 551 18ms 7 Jun 2019 123rd HumanoidCPU 247 555 12ms 6 Jun 2025 124th Pena86 244 562 12ms 19 Mar 2021 125th alemelis 242 567 19ms 29 Aug 2024 126th MaxElf999 237 579 12ms 29 May 2022 127th PyryL 🇫🇮 235 582 11ms 22 Aug 2024 128th michelebastione 🇮🇹 235 584 19ms 6 Aug 2025 129th SniperSmiley 🇺🇸 233 587 13ms 8 Jul 2022 130th TheZwierzLF 🇵🇱 233 589 12ms 13 Dec 2025 131st ridingqwerty 🇺🇸 226 607 19ms 13 Dec 2023 132nd inverseLorentz 🇦🇺 211 649 11ms 22 Nov 2023 133rd bbakersmith 208 660 20ms 28 Jun 2022 134th eiburns 198 693 20ms 18 Aug 2023 135th martinnorling 🇸🇪 186 736 11ms 11 Mar 2022 136th Sturla22 165 831 19ms 29 Apr 2022 137th Trunksistor 🇫🇷 114 1,197 16ms 17 May 2022 138th Zhenyu-Bo 112 1,223 13ms 1 Aug 2025 139th lovepeacejoy404 98 1,397 11ms 7 Feb 2019 140th mokymok 🇺🇸 89 1,541 20ms 6 Oct 2021 141st AidanWalter 89 1,544 13ms 28 Nov 2025 142nd KatieLG-Transpiler 🇬🇧 83 1,649 16ms 2 Jul 2022 143rd zt14427 59 2,340 12ms 27 Dec 2024 First Prev 81–143 of 143
