The Calendar hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Happy Numbers in Go 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 nwellnhof 🇩🇪 1,000 108 269ms 17 Oct 2020 1st JayXon 🇺🇸 1,000 108 268ms 9 Jul 2021 1st Lydxn 🇨🇦 1,000 108 276ms 9 Jul 2021 1st MeWhenI 🇻🇦 1,000 108 294ms 4 Nov 2021 1st sisyphus-ppcg 🇦🇺 1,000 108 278ms 16 Mar 2022 1st stefangimmillaro 1,000 108 264ms 12 Jun 2023 7th Steffan153 🇫🇮 982 110 273ms 1 Oct 2022 7th Shanethegamer 🇺🇸 982 110 270ms 29 Mar 2023 7th sean-niemann 🇺🇸 982 110 265ms 30 Aug 2023 7th Yewzir 🇧🇪 982 110 267ms 26 Oct 2023 7th m-tkach 🇺🇦 982 110 272ms 5 Dec 2023 7th emgordon154 982 110 256ms 17 Jan 2025 7th error256 982 110 261ms 15 Feb 2025 7th plcc0 982 110 269ms 21 Mar 2025 7th fuzzylojik-golf 🇺🇸 982 110 255ms 3 Sep 2025 7th CaedenHarper 🇨🇦 982 110 254ms 24 days ago 7th albanian-laundromat 982 110 258ms 6 days ago 18th bendiscz 973 111 262ms 20 Apr 2020 18th emplv 🇱🇻 973 111 266ms 31 Aug 2021 18th jared-hughes 973 111 260ms 27 Feb 2024 18th edsrzf 🇳🇿 973 111 263ms 26 Oct 2024 18th keelimeguy 🇺🇸 973 111 270ms 28 Apr 2025 23rd pardouin 🇫🇷 947 114 276ms 24 Aug 2024 23rd DialFrost 🇸🇬 947 114 294ms 26 Dec 2024 23rd snoozingnewt 🇨🇦 947 114 264ms 29 Nov 2025 26th KasperKivimaeki 🇫🇮 939 115 263ms 2 Oct 2025 27th primo-ppcg 🇹🇭 931 116 275ms 21 Apr 2020 27th kkoenig 931 116 259ms 5 Jan 2024 29th msbranicky 923 117 266ms 8 Sep 2023 30th Lv0Sys 🇵🇱 837 129 256ms 6 hours ago 31st bastatom 824 131 263ms 25 Feb 2024 32nd dpatterbee 818 132 259ms 24 Aug 2020 33rd hrubymar10 812 133 266ms 27 Feb 2024 34th b97tsk 806 134 262ms 21 Apr 2020 35th agschwender 800 135 270ms 21 Apr 2020 35th JunkIce 800 135 256ms 23 Feb 2025 37th 0xjac 🇨🇭 788 137 255ms 7 Jun 2025 38th janbehrens 🇩🇪 777 139 259ms 8 Jul 2021 39th dbut2 🇦🇺 766 141 274ms 15 Jul 2025 40th kmathis22 761 142 264ms 29 Sep 2025 41st kimbo 🇺🇸 745 145 266ms 12 Jan 2023 42nd arctouch-cristiannevianna 740 146 265ms 19 Oct 2023 42nd neihousaigaai 740 146 264ms 14 Feb 2024 44th LostSyntax21 🇬🇧 730 148 281ms 8 Jan 2025 45th potatoattack 725 149 268ms 17 Apr 2020 46th ibeucaly 720 150 264ms 15 Nov 2021 47th JRaspass 🇬🇧 701 154 262ms 15 Jul 2020 47th KatieLG 🇬🇧 701 154 271ms 9 Apr 2022 47th andersk 🇺🇸 701 154 266ms 17 Jan 2023 47th dokutan 701 154 264ms 20 Oct 2023 47th BREMAUCY 🇫🇷 701 154 264ms 21 May 2025 52nd MahlerFive 🇨🇦 697 155 271ms 19 Apr 2020 53rd KatieLG-Transpiler 🇬🇧 692 156 266ms 24 Jun 2022 53rd Babafaba 692 156 269ms 24 Oct 2025 55th jmerle 🇳🇱 688 157 269ms 6 Jul 2023 56th madeforlosers 684 158 265ms 13 Sep 2024 57th TaserTheFox 🇺🇸 679 159 268ms 1 Jun 2023 57th Jacob385 679 159 269ms 10 Jul 2024 59th jerrandolph 671 161 260ms 17 Apr 2020 60th Betuaredead 667 162 263ms 19 Jan 2023 61st targrik 663 163 265ms 1 Jul 2025 62nd j-Ewan 639 169 268ms 10 Mar 2022 62nd Narik1 639 169 271ms 3 Apr 2023 64th heanyang1 621 174 269ms 29 May 2025 65th jupj 🇫🇮 617 175 262ms 13 Nov 2023 66th blaztoma 🇱🇹 610 177 252ms 5 Sep 2025 67th yuchuehw 600 180 269ms 28 Jan 2024 68th InigoK 🇺🇸 597 181 262ms 20 Sep 2025 69th mokymok 🇺🇸 584 185 266ms 8 Nov 2021 69th neel11235813 584 185 265ms 4 Mar 2023 71st ThomasDotCodes 581 186 265ms 16 Apr 2020 72nd jiaminglimjm 🇲🇾 574 188 263ms 9 Jan 2021 72nd GolfingSuccess 🇬🇷 574 188 271ms 25 Jan 2023 72nd olleicua 🇺🇸 574 188 259ms 23 Jan 2025 75th retrohun 568 190 272ms 27 Dec 2022 75th commandblockguy 🇺🇸 568 190 259ms 16 Apr 2023 75th Schmitt-Very-Cool 568 190 267ms 2 Aug 2023 75th Mabeloid 🇳🇴 568 190 265ms 20 Sep 2024 75th RaBa21 🇭🇺 568 190 271ms 10 Jul 2025 80th acotis 563 192 276ms 6 Feb 2025 1–80 of 106 Next Last
