The Calendar hole will go live in approximately 10 days. Why not try and solve it ahead of time?
Cubes in all languages 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 481st MichalMarsalek 🇨🇿 522 181 9ms 15 Jan 2024 482nd two-bad 🇬🇧 522 227 9ms 9 Feb 2024 483rd dokutan 521 380 481ms 13 days ago 484th Shanethegamer 🇺🇸 521 392 276ms 4 Feb 2021 485th jared-hughes 520 228 9ms 19 Jan 2023 486th aditsu 519 182 10ms 31 Dec 2019 487th Yewzir 🇧🇪 519 382 523ms 2 Oct 2025 488th janbehrens 🇩🇪 518 184 633ms 17 Jun 2023 489th madeforlosers 518 229 8ms 3 Nov 2025 490th lynn 517 183 11ms 11 Sep 2021 490th bizy-coder 517 183 19ms 12 Oct 2024 492nd stefangimmillaro 516 214 961ms 2 Nov 2022 493rd ILMTitan 516 333 380ms 21 Nov 2021 494th cbrt-x 516 384 450ms 29 Aug 2021 494th yoshykai 516 384 451ms 27 Mar 2025 496th AbhayAravinda 515 337 3ms 28 Jul 2020 497th jared-hughes 514 184 10ms 16 Aug 2021 498th KatieLG 🇬🇧 514 215 1,026ms 2 Nov 2022 499th DialFrost 🇸🇬 514 328 5ms 22 Dec 2023 500th hklemp 🇩🇪 514 334 365ms 21 Nov 2021 501st Mabeloid 🇳🇴 513 338 3ms 21 Oct 2025 502nd Irratix 🇳🇱 512 371 3,692ms 30 Dec 2022 502nd jared-hughes 512 371 1,139ms 30 Oct 2023 504th TobyBoyne 🇬🇧 511 185 10ms 14 Apr 2022 504th blaztoma 🇱🇹 511 185 9ms 14 days ago 506th dokutan 510 187 944ms 20 Apr 2025 507th Natanaelel 🇸🇪 509 233 9ms 26 Dec 2021 507th fitzdotlol 🇺🇸 509 233 8ms 21 Mar 2022 509th annaproxy 509 359 15ms 13 Jan 2023 510th ravnskjaer 🇩🇰 509 389 342ms 5 days ago 511th Bulmenisaurus 508 186 9ms 13 Jul 2024 512th Kloppermand 🇩🇰 507 339 390ms 7 Oct 2022 513th madex 🇩🇪 507 382 183ms 29 Jun 2025 514th uttumuttu 🇫🇮 505 235 9ms 6 Jan 2022 515th Betuaredead 505 376 590ms 11 Jan 2023 516th janbehrens 🇩🇪 504 220 2ms 9 Nov 2021 517th bzijlema 🇳🇱 503 188 11ms 29 Oct 2023 518th Irratix 🇳🇱 503 345 3ms 25 Dec 2021 518th madex 🇩🇪 503 345 3ms 29 Jun 2025 520th stefangimmillaro 502 165 41ms 22 May 2022 521st SirFireball3521 500 189 10ms 24 Jan 2023 522nd KatieLG 🇬🇧 500 237 9ms 11 Oct 2022 522nd zakariamouhid 500 237 9ms 4 Jun 2023 524th hiddicop 🇸🇪 499 166 45ms 27 Jan 2021 524th Andriamanitra 🇫🇮 499 166 47ms 28 Jul 2023 526th Pimentero 🇷🇺 499 338 4ms 13 Nov 2023 527th M1kep 498 189 263ms 7 Jun 2020 528th targrik 498 238 9ms 8 Jun 2025 529th blaztoma 🇱🇹 496 167 45ms 66 mins ago 530th Shanethegamer 🇺🇸 496 223 968ms 28 Jul 2021 531st Yewzir 🇧🇪 496 383 74ms 9 Feb 2024 532nd TheZwierzLF 🇵🇱 495 201 500ms 21 Nov 2025 533rd Lv0Sys 🇵🇱 494 240 9ms 18 days ago 534th KrausRaus 🇺🇸 493 225 3ms 3 Dec 2021 535th MeWhenI 🇻🇦 493 352 3ms 7 May 2023 536th coreynash 492 241 9ms 26 May 2023 537th IISResetMe 491 192 208ms 21 Mar 2024 538th emplv 🇱🇻 490 169 36ms 30 Mar 2023 539th stertooy 🇧🇪 490 193 9ms 14 Jun 2024 539th ahmetdemirag 🇨🇾 490 193 12ms 24 Jul 2024 541st jackkav 490 242 8ms 4 Feb 2019 542nd jacobly0 🇺🇸 490 608 1,753ms 22 Apr 2024 543rd MeWhenI 🇻🇦 489 388 82ms 8 May 2022 544th marcin7Cd 487 194 16ms 17 Dec 2020 545th archee303 487 356 3ms 5 Feb 2020 546th edsrzf 🇳🇿 486 309 6ms 21 Dec 2024 547th dzhang314 485 195 11ms 13 Aug 2019 548th AlephSquirrel 485 205 585ms 21 Jan 2024 548th Mabeloid 🇳🇴 485 205 580ms 20 Oct 2025 550th Yewzir 🇧🇪 485 358 3ms 9 Feb 2024 551st Lv0Sys 🇵🇱 484 197 496ms 18 days ago 552nd Awsute 484 317 122ms 12 Apr 2022 553rd Natanaelel 🇸🇪 483 190 3ms 20 May 2022 554th commandblockguy 🇺🇸 483 206 617ms 1 Sep 2025 555th emgordon154 483 229 962ms 31 Jul 2024 556th TheZwierzLF 🇵🇱 482 172 37ms 2 days ago 557th jascotm 482 196 9ms 21 May 2021 558th dokutan 482 246 9ms 27 Sep 2024 559th AkashTandon167 482 360 3ms 13 Nov 2019 560th dokutan 482 402 14ms 20 Apr 2025 First Prev 481–560 of 1,658 Next Last