The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Diamonds 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 476th CyberTapir 295 190 10ms 27 Aug 2024 476th mm1013g 295 190 9ms 6 Sep 2024 476th ComputerKWasTaken 🇺🇸 295 190 10ms 8 May 2025 476th EthanJantz 295 190 16ms 5 Sep 2025 485th MLPdiscord 293 191 10ms 22 Jan 2022 486th WilliamBate 290 193 9ms 18 Aug 2020 486th evanrittner 290 193 10ms 26 Feb 2021 486th ztuned 290 193 10ms 26 Jul 2023 486th te-chnical 290 193 10ms 6 May 2025 490th Demonarchet 286 196 10ms 18 Apr 2023 490th Chimplement 286 196 12ms 13 Dec 2023 492nd og2701 284 197 10ms 14 May 2021 492nd ethandhunt 284 197 10ms 16 Aug 2021 494th Akilles1 281 199 10ms 20 Nov 2024 495th jakekaplan 280 200 16ms 15 Mar 2019 496th CRHillman 279 201 11ms 15 Sep 2020 497th akshatj27 🇦🇶 277 202 10ms 11 Jan 2022 498th CheeseCake628 🇳🇴 275 204 17ms 15 Nov 2024 499th mrmena 🇦🇺 273 205 10ms 29 Jun 2021 500th tomh1012 267 210 17ms 29 Oct 2020 501st besasam 265 211 10ms 31 Mar 2021 502nd PaulBadour 264 212 9ms 29 Oct 2023 503rd zuparnowa 263 213 9ms 28 Jan 2019 503rd henrytranter 263 213 10ms 20 Sep 2019 503rd KiwiLT 263 213 10ms 16 Nov 2022 506th Bit125 262 214 11ms 31 Jan 2024 507th XaXa1234 260 215 9ms 23 Apr 2020 507th JuniorKlump 260 215 9ms 15 Sep 2025 509th hotmanga 256 219 9ms 6 Nov 2023 510th atazzam 🇺🇸 253 221 9ms 3 Sep 2022 511th jamespeilunli 252 222 9ms 29 Dec 2021 512th vonKrafft 251 223 9ms 25 Mar 2020 513th tasuren 250 224 23ms 8 Jan 2021 514th elteammate 248 226 10ms 7 Jul 2020 515th thomashastings 247 227 11ms 15 Apr 2021 516th Florian-Mt 241 232 10ms 15 Mar 2024 517th Ccuredalerayner 240 233 9ms 14 May 2021 518th AforAmpere 238 235 11ms 3 May 2020 519th tkjn 234 239 9ms 8 Nov 2023 519th OSYCh314 🇦🇺 234 239 9ms 7 Nov 2024 521st egelmex 230 243 9ms 15 Nov 2019 522nd hjcafaroUC 228 246 10ms 12 Jun 2021 523rd TJK-S 227 247 9ms 14 days ago 524th craftablescience 221 253 10ms 25 Apr 2022 525th DihydrogenMonoxideH2O 220 255 9ms 23 Jan 2025 526th newc0m 209 268 9ms 8 Apr 2019 527th SURAJMITTAL 207 270 10ms 17 Dec 2024 528th luttermann 206 272 10ms 9 Aug 2019 529th kevinnaviapaiva 204 274 11ms 14 Feb 2025 530th twocatsinatrenchcoat 201 278 10ms 12 May 2022 531st justpic1 201 279 10ms 13 Mar 2023 531st Mch47 201 279 9ms 29 Oct 2023 533rd dcure73 200 280 9ms 7 Jun 2019 534th ineedcookie 199 281 10ms 1 May 2024 535th YoungjuneKwon 197 284 10ms 22 Jan 2019 536th NoneTheFewer 196 285 10ms 14 days ago 537th JKfromHMS 194 288 10ms 30 Apr 2024 538th r-benson 🇬🇧 192 291 10ms 30 Jan 2023 539th kpasc 190 294 9ms 14 Jul 2018 540th MatanAvitan 190 295 10ms 18 Feb 2020 540th StoverGitHub 190 295 10ms 16 Jun 2022 540th cseiter 190 295 9ms 6 Dec 2022 543rd UltimateGuy0987 184 305 11ms 8 Nov 2022 543rd shanerey6 184 305 9ms 4 Oct 2023 545th mothcolada 🇺🇸 173 324 9ms 15 Dec 2020 546th jjbvtk 172 325 9ms 27 Sep 2021 547th jgermain48 172 326 9ms 25 Apr 2020 548th JOrE20 🇺🇸 170 329 9ms 17 days ago 549th Zhenyu-Bo 166 338 9ms 31 Jul 2025 550th codefeld 165 339 9ms 27 Feb 2023 551st LukasFolwarczny 🇨🇿 165 340 11ms 17 Sep 2022 552nd ldoodle 163 344 10ms 6 Oct 2022 553rd parkerscheon 159 352 11ms 24 Nov 2020 554th confusedjpg 151 372 10ms 31 Mar 2024 555th twrogers1 149 375 10ms 27 Aug 2020 556th luca1339 147 380 10ms 30 Apr 2024 557th lukasmoellerch 147 382 10ms 14 Jan 2019 558th valgardg 🇮🇸 139 403 10ms 8 Sep 2022 559th dahappy1989 134 418 9ms 5 Nov 2023 560th sayloren 134 419 9ms 4 Jul 2021 First Prev 481–560 of 584 Next Last
