The Calendar hole will go live in approximately 10 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 YellowBunnyGit 557 332 3ms 4 Feb 2021 642nd dokutan 557 582 388ms 8 days ago 643rd HumanoidCPU 556 285 10ms 5 Mar 2025 644th rory660 555 248 10ms 16 Jan 2019 644th AgathokakologicalBit 555 248 10ms 27 Jul 2019 644th Pena86 555 248 9ms 2 Jan 2022 644th jatloe 555 248 12ms 26 Aug 2024 648th alexkunin 554 286 9ms 2 Jul 2019 648th alexsave 554 286 8ms 13 Nov 2025 650th proton 🇩🇪 553 223 43ms 10 Jun 2020 651st Babafaba 553 235 429ms 15 Oct 2025 652nd jbjd 553 249 9ms 2 Mar 2024 652nd fkantelberg 553 249 10ms 15 Jul 2025 654th SpareManiKatti 552 287 9ms 13 Oct 2021 655th memiamp 🇬🇧 552 329 390ms 17 Oct 2022 656th janbehrens 🇩🇪 552 384 262ms 19 Jun 2021 656th xbxbxb007 552 384 261ms 10 Jan 2024 658th Starwort 🇬🇧 551 250 9ms 30 Mar 2019 659th jaredcrystal 🇺🇸 550 224 52ms 14 Dec 2020 659th emgordon154 550 224 35ms 19 Aug 2024 659th tatzyr 🇯🇵 550 224 52ms 2 Mar 2025 662nd Florian-Mt 550 288 10ms 12 Jul 2024 663rd stefangimmillaro 550 330 414ms 13 Jun 2022 664th mizuzimu 549 251 9ms 12 Apr 2020 664th mdnestor 549 251 9ms 4 Jan 2023 664th sjrct 549 251 9ms 2 Jun 2023 664th ndren 549 251 28ms 22 Nov 2023 668th inventshah 549 337 3ms 31 Aug 2022 669th hotmanga 549 386 257ms 25 Oct 2023 670th fourth-bit 547 252 9ms 14 Jul 2023 670th hiichbindermax 547 252 9ms 11 Sep 2024 670th croc54 547 252 9ms 30 Dec 2024 673rd dokutan 547 526 784ms 10 days ago 674th timvermeulen 545 374 169ms 4 Jan 2020 675th bastienvoirin 🇫🇷 544 253 10ms 6 Apr 2020 675th mathisfun271 544 253 10ms 19 Dec 2023 677th alphafalfa 543 370 2ms 26 Nov 2024 678th orifu 542 254 10ms 22 Feb 2021 679th error256 542 421 67ms 3 Jul 2024 680th n1LS 541 228 36ms 2 Oct 2019 681st msbranicky 541 240 611ms 17 Jan 2024 682nd scpchicken 🇵🇼 541 243 148ms 27 Mar 2022 683rd ollyspooner 541 293 9ms 25 Nov 2022 684th timkaiser 540 255 9ms 18 Apr 2019 684th Jacob385 540 255 9ms 12 Apr 2024 686th JunkIce 539 241 532ms 3 Dec 2024 687th yokasuretsu 539 244 148ms 17 Jan 2019 687th SirFireball3521 539 244 196ms 8 Mar 2023 689th null-tangent 539 294 9ms 4 Aug 2022 690th MeWhenI 🇻🇦 539 391 462ms 5 Mar 2022 691st evanrittner 538 256 9ms 17 Feb 2019 691st BrenSchaap 538 256 10ms 21 Oct 2021 693rd marcin7Cd 538 357 7ms 19 Apr 2021 694th Pimentero 🇷🇺 538 362 4ms 13 Nov 2023 695th trinityy-7 537 295 9ms 5 Dec 2023 696th edsrzf 🇳🇿 537 340 42ms 11 Feb 2025 697th Eolu 537 379 176ms 20 Jan 2022 698th markbyrne 536 257 9ms 23 Oct 2020 698th RaBa21 🇭🇺 536 257 10ms 13 Jul 2025 700th cahidenes 536 388 365ms 25 Apr 2021 700th dokutan 536 388 481ms 13 days ago 702nd Mabeloid 🇳🇴 535 346 3ms 21 Oct 2025 703rd dokutan 535 405 99ms 27 Sep 2024 704th omgardner 534 258 9ms 4 Feb 2019 704th ethandhunt 534 258 9ms 20 Jul 2021 706th MadScience137 534 297 8ms 16 Oct 2022 707th jared-hughes 533 347 3ms 21 Nov 2023 708th jm600 532 259 10ms 27 Nov 2022 709th pandapawskat 532 298 8ms 3 Dec 2020 710th hklemp 🇩🇪 531 342 365ms 21 Nov 2021 711th cbrt-x 531 392 450ms 29 Aug 2021 712th geofft 530 260 9ms 10 Dec 2020 712th LeeCamp 530 260 9ms 18 Dec 2021 712th Bonjour27891 🇻🇳 530 260 9ms 13 Mar 2022 712th Mikey-Beep 🇬🇧 530 260 10ms 3 Oct 2022 712th ffelixm 530 260 10ms 21 May 2025 712th robin-scragg 530 260 10ms 3 Oct 2025 718th MadonnaMat 529 233 43ms 21 Jan 2022 719th badboj40 528 261 10ms 18 Jan 2023 720th vezzick 526 262 9ms 6 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