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?
Diamonds in Python 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 478th zyc-2024 🇨🇳 356 188 10ms 12 days ago 482nd MarshalX 🇵🇱 354 189 10ms 14 Nov 2024 482nd RaBa21 🇭🇺 354 189 10ms 3 Aug 2025 484th ShootingStar91 353 190 11ms 28 May 2019 484th Espiobest 353 190 10ms 26 Feb 2021 484th kenballus 353 190 10ms 17 Aug 2022 484th Ayush-Agarwal07 353 190 10ms 5 Sep 2023 484th erikgaal 353 190 9ms 13 Oct 2023 484th pricemat 353 190 10ms 26 Oct 2023 484th zwxzwxzwx21 353 190 10ms 30 Jan 2024 484th CyberTapir 353 190 10ms 27 Aug 2024 484th mm1013g 353 190 10ms 6 Sep 2024 484th ComputerKWasTaken 🇺🇸 353 190 10ms 8 May 2025 484th EthanJantz 353 190 17ms 5 Sep 2025 484th JOrE20 353 190 10ms 15 Feb 2026 496th MLPdiscord 351 191 10ms 22 Jan 2022 496th jusaka 351 191 11ms 8 days ago 498th WilliamBate 347 193 10ms 18 Aug 2020 498th evanrittner 347 193 10ms 26 Feb 2021 498th ztuned 347 193 10ms 26 Jul 2023 498th te-chnical 347 193 10ms 6 May 2025 502nd Demonarchet 342 196 12ms 18 Apr 2023 502nd Chimplement 342 196 13ms 13 Dec 2023 504th og2701 340 197 10ms 14 May 2021 504th ethandhunt 340 197 9ms 16 Aug 2021 506th Akilles1 337 199 11ms 20 Nov 2024 507th jakekaplan 335 200 15ms 15 Mar 2019 508th CRHillman 333 201 11ms 15 Sep 2020 509th akshatj27 🇦🇶 332 202 11ms 11 Jan 2022 510th CheeseCake628 🇳🇴 328 204 17ms 15 Nov 2024 511th mrmena 🇦🇺 327 205 10ms 29 Jun 2021 512th petar-donchev 324 207 10ms 8 Sep 2019 513th besasam 318 211 10ms 31 Mar 2021 514th PaulBadour 316 212 10ms 29 Oct 2023 515th zuparnowa 315 213 10ms 28 Jan 2019 515th henrytranter 315 213 11ms 20 Sep 2019 515th KiwiLT 315 213 9ms 16 Nov 2022 518th Bit125 313 214 11ms 31 Jan 2024 519th XaXa1234 312 215 11ms 23 Apr 2020 519th JuniorKlump 312 215 10ms 15 Sep 2025 521st hotmanga 306 219 10ms 6 Nov 2023 522nd atazzam 🇺🇸 303 221 11ms 3 Sep 2022 523rd jamespeilunli 302 222 9ms 29 Dec 2021 524th vonKrafft 300 223 9ms 25 Mar 2020 525th tasuren 299 224 16ms 8 Jan 2021 526th elteammate 296 226 10ms 7 Jul 2020 527th thomashastings 295 227 12ms 15 Apr 2021 528th Florian-Mt 289 232 9ms 15 Mar 2024 529th Ccuredalerayner 288 233 10ms 14 May 2021 530th AforAmpere 285 235 11ms 3 May 2020 531st tkjn 280 239 10ms 8 Nov 2023 531st OSYCh314 🇦🇺 280 239 10ms 7 Nov 2024 533rd egelmex 276 243 10ms 15 Nov 2019 533rd NoneTheFewer 276 243 10ms 27 Dec 2025 535th hjcafaroUC 272 246 10ms 12 Jun 2021 536th TJK-S 271 247 10ms 3 Dec 2025 537th craftablescience 265 253 10ms 25 Apr 2022 538th DihydrogenMonoxideH2O 263 255 11ms 23 Jan 2025 539th cingulataluke 257 261 11ms 26 Aug 2023 540th newc0m 250 268 10ms 8 Apr 2019 541st SURAJMITTAL 248 270 10ms 17 Dec 2024 542nd luttermann 246 272 9ms 9 Aug 2019 543rd kevinnaviapaiva 245 274 12ms 14 Feb 2025 544th twocatsinatrenchcoat 241 278 10ms 12 May 2022 545th justpic1 240 279 11ms 13 Mar 2023 545th Mch47 240 279 13ms 29 Oct 2023 547th dcure73 239 280 9ms 7 Jun 2019 548th ineedcookie 238 281 9ms 1 May 2024 549th YoungjuneKwon 236 284 10ms 22 Jan 2019 550th JKfromHMS 233 288 10ms 30 Apr 2024 551st r-benson 🇬🇧 230 291 11ms 30 Jan 2023 552nd kpasc 228 294 9ms 14 Jul 2018 553rd MatanAvitan 227 295 11ms 18 Feb 2020 553rd StoverGitHub 227 295 10ms 16 Jun 2022 553rd cseiter 227 295 10ms 6 Dec 2022 556th UltimateGuy0987 220 305 11ms 8 Nov 2022 556th shanerey6 220 305 11ms 4 Oct 2023 558th mothcolada 🇺🇸 207 324 10ms 15 Dec 2020 559th jjbvtk 206 325 9ms 27 Sep 2021 560th jgermain48 206 326 11ms 25 Apr 2020 First Prev 481–560 of 597 Next Last
