The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Fibonacci in Java 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 238th GreenBeansAgainstVeganism 463 123 377ms 28 May 2022 238th conder13 463 123 358ms 28 Aug 2025 243rd janga1 460 124 374ms 19 Aug 2021 243rd JC-ProgJava 460 124 384ms 14 May 2022 245th DylanSmith63 456 125 413ms 20 Oct 2022 245th PotatoSaladOverlord 456 125 373ms 18 Jan 2024 245th JesseNoEyes 🇺🇸 456 125 369ms 25 Sep 2024 248th sobhanbera 449 127 360ms 22 Jun 2020 248th iant89 449 127 380ms 21 Aug 2021 248th codefeld 449 127 367ms 25 Jun 2023 248th azure-blondon 449 127 390ms 5 May 2024 248th Bozrem 449 127 411ms 5 Jun 2025 253rd AZ9tumas 442 129 393ms 15 Oct 2022 253rd achilleasr 442 129 352ms 7 Nov 2022 255th jtaxen 438 130 381ms 18 Mar 2022 256th Superminaren 432 132 354ms 1 Jun 2020 256th timpauls 432 132 350ms 29 Oct 2021 258th sulphemi 429 133 358ms 4 Mar 2022 259th isseikz 425 134 375ms 4 Jun 2020 259th LeftPathLane 425 134 390ms 1 Nov 2022 261st riviere-lucas 422 135 367ms 29 Dec 2020 261st louisbosqui 422 135 377ms 29 Dec 2020 261st selketdaly 422 135 362ms 9 Sep 2022 264th oschmidh 419 136 373ms 18 Nov 2020 264th dillon-duncando 419 136 418ms 21 Dec 2021 264th DaanDvl 419 136 393ms 29 Jun 2022 267th jetzerv 416 137 390ms 19 Dec 2020 267th caynraiser 416 137 385ms 8 Dec 2021 267th CarstenSchridde 416 137 411ms 28 Jun 2024 270th MEuph 413 138 362ms 23 Apr 2020 270th the-soph-ia 413 138 360ms 15 Jan 2021 270th bsoyka 🇺🇸 413 138 390ms 9 Jan 2022 270th Smetalo 413 138 379ms 25 Aug 2022 274th mlandis1919 410 139 346ms 25 Sep 2020 274th artysta 410 139 360ms 27 Oct 2020 274th DaCuteRaccoon 410 139 388ms 28 Apr 2022 274th LawrenceZ1A 🇨🇦 410 139 395ms 26 May 2022 278th adoxography 407 140 393ms 12 Jun 2020 278th JacobStanleyJones 407 140 374ms 21 Mar 2022 278th phpboyscout 407 140 370ms 27 Apr 2023 278th cingulataluke 407 140 403ms 2 Jun 2024 282nd ze-h 🇺🇸 404 141 359ms 10 Jan 2022 283rd DerbnanGrabg 401 142 375ms 30 May 2024 283rd DrJoWe 401 142 558ms 10 Jun 2024 283rd onsagere 401 142 355ms 4 Oct 2024 286th tm70 399 143 375ms 23 Jan 2021 287th ped-renguin 396 144 361ms 29 Oct 2023 288th IchBinMichMarkus 393 145 360ms 11 Jul 2023 288th RonaldoMessi-ai 393 145 361ms 22 May 2025 290th jonah1068 390 146 394ms 15 Sep 2023 290th jccummi1 390 146 370ms 29 Oct 2023 290th noah-dean-wa 390 146 354ms 22 May 2025 293rd Armka 383 149 377ms 10 Sep 2025 293rd Zach1031 383 149 434ms 14 Nov 2025 295th Oscujic 380 150 372ms 8 Jan 2021 295th ValNyz 380 150 368ms 23 Feb 2022 295th DonutDelle 380 150 391ms 18 Mar 2022 295th sm1lko 380 150 371ms 14 Dec 2022 299th nico-bachner 377 151 352ms 28 Dec 2020 300th AvaAvarai 370 154 401ms 20 Sep 2021 301st tnecio 368 155 357ms 4 Jul 2021 301st amber1093 368 155 386ms 22 Feb 2024 303rd ishuii 363 157 369ms 15 Nov 2023 303rd Zstr25 363 157 365ms 9 Sep 2025 305th lexigeib 361 158 380ms 17 Jul 2020 305th BrysonHamlin 🇺🇸 361 158 387ms 18 Apr 2022 307th lukemalek 358 159 380ms 20 Oct 2022 308th Salamence064 354 161 376ms 13 Nov 2022 309th VladislavGitter 🇪🇸 352 162 363ms 13 Nov 2023 310th Bananapants22 345 165 547ms 21 Aug 2022 311th RockOfStone 341 167 357ms 23 Mar 2024 311th greg-657 341 167 409ms 13 Oct 2025 313th CuboidRaptor 🇨🇦 337 169 388ms 26 May 2022 314th beigealligator 326 175 370ms 20 Dec 2022 315th noahdorsch 324 176 401ms 15 Jul 2024 316th PanNessMain 315 181 375ms 7 Oct 2024 317th david-m-s 310 184 385ms 23 Feb 2023 318th YPuest 303 188 365ms 15 Feb 2023 319th kevinnaviapaiva 302 189 368ms 25 Feb 2025 320th Javalernen 284 201 366ms 20 Jun 2022 First Prev 241–320 of 339 Next Last
