The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Cubes in all languages 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 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 Bytes Time Submitted 641st dokutan 557 582 388ms 6 days ago 642nd HumanoidCPU 556 285 10ms 5 Mar 2025 643rd rory660 555 248 10ms 16 Jan 2019 643rd AgathokakologicalBit 555 248 10ms 27 Jul 2019 643rd Pena86 555 248 9ms 2 Jan 2022 643rd jatloe 555 248 12ms 26 Aug 2024 647th alexkunin 554 286 9ms 2 Jul 2019 647th alexsave 554 286 8ms 13 Nov 2025 649th proton 🇩🇪 553 223 43ms 10 Jun 2020 650th Babafaba 553 235 429ms 15 Oct 2025 651st jbjd 553 249 9ms 2 Mar 2024 651st fkantelberg 553 249 10ms 15 Jul 2025 653rd SpareManiKatti 552 287 9ms 13 Oct 2021 654th memiamp 🇬🇧 552 329 390ms 17 Oct 2022 655th janbehrens 🇩🇪 552 384 262ms 19 Jun 2021 655th xbxbxb007 552 384 261ms 10 Jan 2024 657th Starwort 🇬🇧 551 250 9ms 30 Mar 2019 658th jaredcrystal 🇺🇸 550 224 52ms 14 Dec 2020 658th emgordon154 550 224 35ms 19 Aug 2024 658th tatzyr 🇯🇵 550 224 52ms 2 Mar 2025 661st Florian-Mt 550 288 10ms 12 Jul 2024 662nd stefangimmillaro 550 330 414ms 13 Jun 2022 663rd mizuzimu 549 251 9ms 12 Apr 2020 663rd mdnestor 549 251 9ms 4 Jan 2023 663rd sjrct 549 251 9ms 2 Jun 2023 663rd ndren 549 251 28ms 22 Nov 2023 667th inventshah 549 337 3ms 31 Aug 2022 668th hotmanga 549 386 257ms 25 Oct 2023 669th fourth-bit 547 252 9ms 14 Jul 2023 669th hiichbindermax 547 252 9ms 11 Sep 2024 669th croc54 547 252 9ms 30 Dec 2024 672nd dokutan 547 526 784ms 8 days ago 673rd timvermeulen 545 374 169ms 4 Jan 2020 674th bastienvoirin 🇫🇷 544 253 10ms 6 Apr 2020 674th mathisfun271 544 253 10ms 19 Dec 2023 676th alphafalfa 543 370 2ms 26 Nov 2024 677th orifu 542 254 10ms 22 Feb 2021 678th error256 542 421 67ms 3 Jul 2024 679th msbranicky 541 240 611ms 17 Jan 2024 680th scpchicken 🇵🇼 541 243 148ms 27 Mar 2022 681st ollyspooner 541 293 9ms 25 Nov 2022 682nd n1LS 540 228 36ms 2 Oct 2019 683rd timkaiser 540 255 9ms 18 Apr 2019 683rd Jacob385 540 255 9ms 12 Apr 2024 685th JunkIce 539 241 532ms 3 Dec 2024 686th yokasuretsu 539 244 148ms 17 Jan 2019 686th SirFireball3521 539 244 196ms 8 Mar 2023 688th null-tangent 539 294 9ms 4 Aug 2022 689th MeWhenI 🇻🇦 539 391 462ms 5 Mar 2022 690th evanrittner 538 256 9ms 17 Feb 2019 690th BrenSchaap 538 256 10ms 21 Oct 2021 692nd marcin7Cd 538 357 7ms 19 Apr 2021 693rd Pimentero 🇷🇺 538 362 4ms 13 Nov 2023 694th trinityy-7 537 295 9ms 5 Dec 2023 695th edsrzf 🇳🇿 537 340 42ms 11 Feb 2025 696th Eolu 537 379 176ms 20 Jan 2022 697th markbyrne 536 257 9ms 23 Oct 2020 697th RaBa21 🇭🇺 536 257 10ms 13 Jul 2025 699th cahidenes 536 388 365ms 25 Apr 2021 699th dokutan 536 388 481ms 11 days ago 701st Mabeloid 🇳🇴 535 346 3ms 21 Oct 2025 702nd dokutan 535 405 99ms 27 Sep 2024 703rd omgardner 534 258 9ms 4 Feb 2019 703rd ethandhunt 534 258 9ms 20 Jul 2021 705th MadScience137 534 297 8ms 16 Oct 2022 706th jared-hughes 533 347 3ms 21 Nov 2023 707th jm600 532 259 10ms 27 Nov 2022 708th pandapawskat 532 298 8ms 3 Dec 2020 709th hklemp 🇩🇪 531 342 365ms 21 Nov 2021 710th cbrt-x 531 392 450ms 29 Aug 2021 711th geofft 530 260 9ms 10 Dec 2020 711th LeeCamp 530 260 9ms 18 Dec 2021 711th Bonjour27891 🇻🇳 530 260 9ms 13 Mar 2022 711th Mikey-Beep 🇬🇧 530 260 10ms 3 Oct 2022 711th ffelixm 530 260 10ms 21 May 2025 711th robin-scragg 530 260 10ms 3 Oct 2025 717th MadonnaMat 529 233 43ms 21 Jan 2022 718th badboj40 528 261 10ms 18 Jan 2023 719th vezzick 526 262 9ms 6 Mar 2021 719th VictorStenvers 🇳🇱 526 262 9ms 26 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