The Calendar hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Zeckendorf Representation 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 561st hiichbindermax 513 152 10ms 15 Jul 2024 561st InigoK 🇺🇸 513 152 214ms 4 Sep 2025 561st Andrey2001 513 152 11ms 11 days ago 564th klixel 🇨🇦 513 259 225ms 9 Jan 2025 565th MeWhenI 🇻🇦 511 198 47ms 6 Aug 2024 566th leon-w 509 153 10ms 24 Jul 2024 567th msbranicky 505 265 57ms 4 Jul 2024 568th 0xjac 🇨🇭 505 269 290ms 19 Jun 2025 569th CutSandstone 500 156 9ms 2 Jul 2024 570th MeWhenI 🇻🇦 500 235 30ms 1 Jul 2024 571st edsrzf 🇳🇿 497 181 9ms 24 Nov 2024 572nd bac0id 497 225 439ms 1 Jul 2024 573rd mbittner20 496 157 9ms 11 Jul 2024 573rd Vaekor 496 157 10ms 23 Jul 2024 573rd theadamabrams 496 157 11ms 26 Dec 2024 576th coreynash 494 140 10ms 2 Jul 2024 576th two-bad 🇬🇧 494 140 10ms 4 Oct 2024 578th emgordon154 492 183 8ms 13 Dec 2024 579th jacekwladzinski 490 159 10ms 7 Oct 2025 580th MeWhenI 🇻🇦 488 172 11ms 13 Aug 2024 581st vgamula 🇺🇦 487 160 35ms 3 Jul 2024 582nd dieggsy 485 209 15ms 16 Oct 2024 583rd jtaxen 481 162 10ms 2 Jul 2024 583rd nstearns96 🇬🇧 481 162 12ms 9 Jul 2024 583rd JOrE20 🇺🇸 481 162 12ms 3 days ago 586th CatsAreFluffy 480 227 61ms 3 Nov 2024 587th dokutan 480 231 43ms 27 Aug 2024 588th Pyroan 478 163 10ms 14 May 2025 589th MeWhenI 🇻🇦 476 179 77ms 9 Aug 2024 590th OCNeve 475 164 9ms 3 Jul 2024 590th Upload-and-View 🇺🇦 475 164 10ms 9 Aug 2025 592nd AtengChen 472 165 10ms 14 Aug 2024 593rd msbranicky 471 146 192ms 4 Jul 2024 594th ComputerKWasTaken 🇺🇸 470 210 2ms 1 Jul 2024 595th iczelia 🇩🇪 466 183 2ms 16 Oct 2025 596th snoozingnewt 🇨🇦 464 184 2ms 9 Oct 2025 597th madex 🇩🇪 461 127 41ms 1 Jul 2024 598th acollett89 461 150 9ms 5 Aug 2025 599th marcin7Cd 459 170 10ms 11 Jul 2024 599th Mabeloid 🇳🇴 459 170 12ms 17 Sep 2024 599th YAJUE114514 459 170 10ms 31 Jul 2025 602nd xyangst 458 151 10ms 15 Oct 2024 603rd sheen4n 456 171 10ms 21 Jul 2024 604th jtaxen 453 250 127ms 2 Jul 2024 605th klixel 🇨🇦 451 173 11ms 20 Jan 2025 606th ComputerKWasTaken 🇺🇸 450 130 39ms 4 Jul 2024 607th tomh1012 449 227 419ms 23 Jul 2024 608th croc54 448 174 10ms 17 Jan 2025 609th JOrE20 🇺🇸 447 154 233ms 3 days ago 610th MeWhenI 🇻🇦 443 152 13ms 1 Jul 2024 611th madex 🇩🇪 441 180 834ms 1 Jul 2024 612th snoozingnewt 🇨🇦 436 86 3ms 7 Oct 2025 613th c4augustus 431 87 2ms 16 Jul 2024 614th Flobois 430 158 250ms 23 Jul 2024 615th Maximizer02 429 210 13ms 24 Jul 2024 616th MeWhenI 🇻🇦 422 116 104ms 7 Aug 2024 617th Mabeloid 🇳🇴 419 170 759ms 17 Sep 2024 618th ginop 419 186 10ms 2 Jul 2024 618th inverseLorentz 🇦🇺 419 186 10ms 8 Jul 2024 620th OllieBoyne 🇬🇧 412 189 10ms 12 Jul 2024 621st CatsAreFluffy 410 208 2ms 3 Nov 2024 622nd IISResetMe 409 166 238ms 4 Jul 2024 623rd JDiLenarda 🇫🇷 409 263 1,303ms 31 Aug 2024 624th MeWhenI 🇻🇦 406 138 36ms 8 Aug 2024 625th dokutan 401 250 4ms 15 Jul 2024 626th dokutan 396 170 10ms 15 Aug 2024 627th dokutan 395 174 609ms 2 Jul 2024 628th madex 🇩🇪 388 220 2ms 1 Jul 2024 629th Msleizak 🇫🇷 386 176 241ms 19 Jul 2024 630th zt14427 384 203 9ms 1 Jul 2024 631st BambooleanLogic 🇸🇪 382 181 9ms 23 Jun 2025 632nd madex 🇩🇪 381 349 230ms 1 Jul 2024 633rd TheZwierzLF 🇵🇱 377 189 584ms 25 Nov 2025 634th ComputerKWasTaken 🇺🇸 377 360 259ms 1 Jul 2024 635th jerrandolph 364 373 273ms 21 Sep 2025 636th saito-ta 🇯🇵 358 482 665ms 10 Jul 2024 637th jameswmccarty 353 221 10ms 10 Jul 2024 638th azure-blondon 342 228 10ms 7 Jul 2024 639th yuchuehw 340 229 10ms 5 Jul 2024 640th Schmitt-Very-Cool 324 345 507ms 3 Oct 2025 First Prev 561–640 of 681 Next Last