The Multitap Input hole will go live in approximately 4 days. Why not try and solve it ahead of time?
Leap Years 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 Calendar 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 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 ArkScript 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 ArkScript 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 Calendar 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 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 719th edsrzf 🇳🇿 899 60 14ms 14 Dec 2025 722nd JayXon 🇺🇸 899 69 25ms 17 Apr 2022 723rd billings7 🇬🇧 898 63 372ms 21 Nov 2021 723rd ChristophHornung 898 63 392ms 21 Nov 2021 723rd KatieLG 🇬🇧 898 63 402ms 17 Oct 2022 726th nwellnhof 🇩🇪 896 89 241ms 3 Sep 2020 726th MeWhenI 🇻🇦 896 89 247ms 10 Oct 2022 726th DialFrost 🇸🇬 896 89 249ms 8 Nov 2023 726th dokutan 896 89 244ms 25 Sep 2024 726th fuzzylojik-golf 🇺🇸 896 89 248ms 15 Jul 2025 726th KasperKivimaeki 🇫🇮 896 89 244ms 29 Sep 2025 726th edsrzf 🇳🇿 896 89 257ms 21 Dec 2025 733rd Yewzir 🇧🇪 895 70 420ms 17 Nov 2023 734th canissimia 🇦🇶 895 83 6ms 1 Aug 2023 735th ovs-code 🇩🇪 895 89 7ms 8 Jul 2024 736th MeWhenI 🇻🇦 894 45 131ms 3 Aug 2024 736th dokutan 894 45 135ms 25 Sep 2024 738th clockworknazo 894 54 3ms 23 Oct 2022 739th primo-ppcg 🇹🇭 893 36 39ms 8 Dec 2018 739th nwellnhof 🇩🇪 893 36 35ms 28 Apr 2020 739th Waffle3z 893 36 36ms 14 Jul 2021 739th lynn 893 36 37ms 10 Sep 2021 739th sean-niemann 🇺🇸 893 36 39ms 5 Apr 2022 739th jared-hughes 893 36 39ms 9 Sep 2022 739th MeWhenI 🇻🇦 893 36 35ms 10 Oct 2022 739th Steffan153 🇫🇮 893 36 40ms 26 Dec 2022 739th ovs-code 🇩🇪 893 36 35ms 9 May 2023 739th DialFrost 🇸🇬 893 36 37ms 8 Nov 2023 739th pardouin 🇫🇷 893 36 39ms 21 Aug 2024 739th dokutan 893 36 37ms 25 Sep 2024 739th FlyingPenguin223 893 36 35ms 17 Dec 2024 739th fuzzylojik-golf 🇺🇸 893 36 37ms 25 Aug 2025 753rd ANDREYDEN 893 45 9ms 12 Jan 2019 753rd dee-gomma 893 45 9ms 27 Mar 2019 753rd Cr3aHal0 893 45 9ms 2 Jul 2019 753rd StefanTifrea 893 45 9ms 15 Jul 2020 753rd Non-J 893 45 9ms 27 Sep 2020 753rd ryandougc 893 45 9ms 17 Dec 2020 753rd ForkKILLET 🇨🇳 893 45 10ms 18 Feb 2021 753rd UBKorkut 893 45 10ms 10 Mar 2021 753rd neihousaigaai 893 45 9ms 8 May 2021 753rd SpareManiKatti 893 45 9ms 14 Oct 2021 753rd danielb7390 893 45 10ms 9 Mar 2022 753rd WebDevPT 🇵🇹 893 45 10ms 10 Mar 2022 753rd CiucaRazvan 893 45 10ms 29 Jul 2022 753rd SirFireball3521 893 45 9ms 1 Nov 2022 753rd astdefu 893 45 9ms 10 Dec 2022 753rd Betuaredead 893 45 9ms 4 Jan 2023 753rd Mazn3k 893 45 9ms 15 Mar 2023 753rd ejini6969 893 45 9ms 25 Mar 2023 753rd raszpi 🇭🇺 893 45 8ms 2 Sep 2023 753rd mulmul9 🇭🇺 893 45 9ms 7 Sep 2023 753rd FruzsinaLenti 893 45 9ms 8 Sep 2023 753rd junkondo-jp 893 45 9ms 6 May 2024 753rd Mabeloid 🇳🇴 893 45 9ms 14 Oct 2024 753rd shandriy 893 45 9ms 8 Nov 2024 753rd Salutations45 893 45 9ms 12 Nov 2024 753rd 823126 893 45 10ms 9 Dec 2024 753rd Garklein 🇨🇦 893 45 9ms 6 Jan 2025 753rd jake6192 893 45 9ms 17 May 2025 753rd albanian-laundromat 893 45 10ms 1 Sep 2025 753rd iczelia 🇩🇪 893 45 9ms 25 Sep 2025 783rd primo-ppcg 🇹🇭 892 131 11ms 2 Aug 2023 784th Steffan153 🇫🇮 891 52 4ms 16 Apr 2023 784th Lydxn 🇨🇦 891 52 4ms 12 May 2023 784th GrayJoKing 🇦🇺 891 52 4ms 14 Aug 2023 784th dokutan 891 52 4ms 25 Sep 2024 784th kg583 🇺🇸 891 52 4ms 10 Dec 2025 784th edsrzf 🇳🇿 891 52 4ms 14 Dec 2025 790th edsrzf 🇳🇿 891 57 11ms 17 Dec 2024 790th DialFrost 🇸🇬 891 57 11ms 25 days ago 792nd andersk 🇺🇸 891 60 117ms 20 Mar 2020 792nd primo-ppcg 🇹🇭 891 60 137ms 2 May 2020 792nd JayXon 🇺🇸 891 60 120ms 23 Aug 2021 792nd Lydxn 🇨🇦 891 60 117ms 24 Aug 2021 792nd lynn 891 60 131ms 10 Sep 2021 792nd Super-Pizza 🇨🇦 891 60 124ms 22 May 2023 798th Shanethegamer 🇺🇸 891 64 98ms 15 Apr 2025 798th snoozingnewt 🇨🇦 891 64 127ms 1 Dec 2025 798th emgordon154 891 64 103ms 1 Dec 2025 First Prev 721–800 of 4,788 Next Last