The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Christmas Trees in Java 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 1st JayXon 🇺🇸 1,000 95 448ms 26 Sep 2025 2nd sean-niemann 🇺🇸 905 105 446ms 24 Sep 2025 3rd MeWhenI 🇻🇦 888 107 393ms 7 Nov 2025 4th ScottHamper 880 108 447ms 17 days ago 5th nwellnhof 🇩🇪 864 110 437ms 25 Sep 2025 5th DialFrost 🇸🇬 864 110 451ms 18 Nov 2025 7th EvilFonti 848 112 355ms 6 days ago 8th Yewzir 🇧🇪 833 114 461ms 2 Oct 2025 8th stefangimmillaro 833 114 398ms 6 Oct 2025 10th jared-hughes 798 119 566ms 24 Sep 2025 10th albanian-laundromat 798 119 468ms 16 days ago 12th CaedenHarper 🇨🇦 766 124 449ms 4 Oct 2025 13th dokutan 748 127 485ms 24 Sep 2025 14th kmathis22 731 130 447ms 14 Oct 2025 15th h3ra993huskp 🇯🇵 720 132 440ms 18 days ago 16th Lydxn 🇨🇦 714 133 395ms 14 Jul 2023 17th ravnskjaer 🇩🇰 699 136 330ms 3 days ago 18th primo-ppcg 🇹🇭 683 139 402ms 2 Sep 2020 18th HumanoidCPU 683 139 367ms 14 Nov 2025 20th Jacob385 679 140 406ms 28 Oct 2025 21st janbehrens 🇩🇪 669 142 359ms 25 Oct 2021 22nd Attero 🇸🇪 664 143 361ms 5 Sep 2020 23rd Irratix 🇳🇱 633 150 391ms 7 Dec 2021 24th FlorianCassayre 🇫🇷 583 163 373ms 28 Sep 2022 25th yoshykai 579 164 370ms 10 Apr 2025 26th bac0id 572 166 406ms 5 Jul 2024 27th boxjelly 552 172 356ms 23 Feb 2021 28th KrausRaus 🇺🇸 549 173 377ms 3 Apr 2021 29th cbrt-x 543 175 370ms 11 Sep 2021 29th eMGeeneer 543 175 529ms 15 Jun 2024 31st PhysicDev 🇫🇷 540 176 381ms 9 Mar 2022 32nd crizin 🇰🇷 534 178 366ms 9 Sep 2023 33rd SkimnerPhi 528 180 375ms 5 Dec 2020 33rd msbranicky 528 180 380ms 8 Jan 2024 33rd noescareno 528 180 375ms 30 May 2025 36th Schmitt-Very-Cool 525 181 444ms 26 Sep 2025 37th sonisonjames 519 183 390ms 26 Nov 2022 38th zaki1993 508 187 396ms 28 May 2024 39th frederikb 497 191 377ms 8 Sep 2020 40th pl89 480 198 377ms 1 Jan 2022 41st Kusarr 475 200 383ms 18 Dec 2020 41st bwat2 475 200 379ms 14 Dec 2021 41st amber1093 475 200 373ms 22 Feb 2024 44th Vaekor 466 204 426ms 10 Jul 2023 45th eiburns 459 207 400ms 13 Nov 2020 45th Maximizer02 459 207 390ms 11 Mar 2024 47th weber-hge 452 210 467ms 6 hours ago 48th DarkC4t 448 212 389ms 23 Apr 2022 49th Re-Adventures 🇮🇳 434 219 381ms 23 Mar 2021 50th daetz 403 236 396ms 8 Aug 2020 51st WildTooth 391 243 439ms 9 Oct 2025 52nd astdefu 389 244 366ms 16 Dec 2022 53rd RealZimboGuy 373 255 394ms 13 Dec 2022 54th atazzam 🇺🇸 363 262 377ms 20 Jan 2025 55th nicolabertazzo 360 264 445ms 7 Dec 2021 56th riviere-lucas 352 270 351ms 29 Dec 2020 56th louisbosqui 352 270 382ms 29 Dec 2020 58th topherpharmer 337 282 376ms 31 Oct 2020 59th EthanGrant1 318 299 372ms 22 Sep 2022 60th Sakkeh 297 320 415ms 9 May 2020 61st KatieLG 🇬🇧 284 335 402ms 18 days ago 62nd onsagere 281 338 371ms 5 Oct 2024 63rd cnelson20 268 354 359ms 11 Oct 2022 64th kevinnaviapaiva 250 380 369ms 18 Feb 2025 65th LuisGoncalves05 🇵🇹 239 398 406ms 27 Jul 2025 66th Kian1031 220 431 406ms 30 Jan 2025 67th SurraysPaprika 183 518 393ms 16 Dec 2022 68th Apataras 155 613 364ms 22 Aug 2025 69th Shanethegamer 🇺🇸 152 624 416ms 25 Sep 2025 70th luca1339 148 644 419ms 3 May 2024 71st mokymok 🇺🇸 144 661 359ms 16 Nov 2021 72nd Joe0 144 662 364ms 22 Apr 2020 73rd retrohun 142 671 368ms 27 Dec 2022 74th KatieLG-Transpiler 🇬🇧 137 691 379ms 7 Jul 2022 75th 1337-man 137 695 355ms 19 Jan 2022 76th Joe-V2 115 823 364ms 19 Apr 2022 77th e99h2121 106 899 362ms 26 Dec 2020 1–77 of 77
