The Calendar hole will go live in approximately 6 days. Why not try and solve it ahead of time?
Fizz Buzz in Haskell 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 160th puzzleninja 708 113 114ms 19 Jul 2019 160th blasio99 708 113 115ms 28 Jan 2021 163rd ian-h-chamberlain 🇺🇸 702 114 117ms 6 Jan 2020 163rd svenssom 702 114 116ms 18 Feb 2022 165th Informagier 696 115 114ms 17 Sep 2020 165th AtticusKuhn 696 115 110ms 23 Jan 2021 165th HaroldVemeno 696 115 114ms 2 Jan 2022 165th heanyang1 696 115 117ms 22 Apr 2025 169th ahilke 690 116 121ms 19 Mar 2019 169th Johannesd3 690 116 114ms 18 Jun 2019 169th darrell-roberts 690 116 119ms 26 Feb 2020 169th ze-h 🇺🇸 690 116 114ms 25 Mar 2022 173rd PPKFS 684 117 116ms 8 Dec 2022 173rd rucin93 🇵🇱 684 117 120ms 8 Jun 2024 175th valentinstoecker 678 118 116ms 8 Jun 2020 176th guliyevemil1 🇦🇿 672 119 118ms 16 Apr 2020 176th rachelambda 672 119 114ms 6 Jun 2020 176th regob 672 119 116ms 31 Jul 2021 176th Drew-j-Smith 672 119 115ms 24 Dec 2023 176th refrogerator 672 119 131ms 17 Oct 2024 176th Alex-Huggett 🇬🇧 672 119 147ms 4 days ago 182nd QuinnQR 667 120 113ms 25 Oct 2021 182nd aliakseikalosha 667 120 116ms 14 Oct 2024 182nd TheDrawingCoder-Gamer 667 120 128ms 2 Jul 2025 182nd Zounon 667 120 112ms 19 Aug 2025 186th mossprescott 661 121 115ms 12 Aug 2018 186th elttil 661 121 131ms 15 Jun 2024 188th enmiligi 650 123 121ms 8 Mar 2023 189th CatsAreFluffy 645 124 117ms 16 Nov 2022 190th RoSeWi 640 125 114ms 29 Nov 2019 190th jadequin 640 125 115ms 28 Apr 2021 190th sech1p 🇵🇱 640 125 114ms 6 Jul 2021 190th Widgitty 640 125 112ms 20 May 2023 194th JoaoFelipe3 635 126 113ms 14 Jan 2024 195th volpi-m 🇫🇷 630 127 115ms 19 Mar 2024 195th RedzGoose 🇦🇺 630 127 116ms 18 Sep 2024 197th neonchickens 625 128 111ms 10 Nov 2023 197th brimstonetrader 625 128 114ms 2 Jan 2024 197th nents 625 128 116ms 24 Jan 2025 200th namelessiw 615 130 113ms 22 Jan 2024 200th Kesefon 615 130 114ms 3 Oct 2024 202nd andres-dr 611 131 118ms 13 May 2020 202nd jtnuttall 611 131 113ms 5 Oct 2022 204th ldnicolasmay 606 132 112ms 17 Sep 2019 204th RustemB 🇷🇺 606 132 112ms 2 Jun 2020 204th CristianDG 606 132 116ms 1 Sep 2020 207th Aiden01 593 135 124ms 15 May 2019 208th xmamalou 🇬🇷 588 136 110ms 17 Sep 2023 208th h3ra993huskp 🇯🇵 588 136 120ms 13 Oct 2025 210th KatieLG 🇬🇧 584 137 129ms 30 May 2021 211th Siri-chan 580 138 113ms 29 Dec 2022 211th Reijix 580 138 116ms 1 Oct 2023 213th rambox11 576 139 114ms 30 Jan 2019 213th alphafalfa 576 139 188ms 18 Nov 2024 215th dreamsmasher 571 140 116ms 17 Jan 2021 216th louisbosqui 567 141 116ms 28 Dec 2020 216th j0d3v 567 141 130ms 18 Jul 2025 218th maxquinn 559 143 123ms 20 Nov 2019 219th pandapawskat 552 145 112ms 30 Aug 2021 220th marshallku 🇰🇷 541 148 116ms 12 Sep 2020 220th AlephSquirrel 541 148 125ms 25 May 2021 222nd Gigabitten 530 151 114ms 1 Nov 2019 223rd specdrake 510 157 111ms 30 May 2020 224th woodRock 500 160 114ms 12 Jan 2021 225th NatNgs 494 162 115ms 8 Jan 2020 226th LHLaurini 🇧🇷 488 164 117ms 29 Jun 2024 227th elisherer 🇮🇱 485 165 115ms 7 Apr 2019 227th willpiam 485 165 120ms 9 Sep 2021 229th massung 468 171 117ms 19 Mar 2019 230th malcolmseyd 444 180 111ms 11 Aug 2022 231st saitouena 432 185 114ms 18 Sep 2022 231st alexhroom 432 185 118ms 2 Jan 2023 233rd YAJUE114514 426 188 116ms 15 Jul 2025 234th nikhilc1527 392 204 112ms 2 Jan 2022 235th KrausRaus 🇺🇸 385 208 111ms 1 Feb 2022 236th lukasmoellerch 376 213 115ms 14 Jul 2019 237th Yax42 🇫🇷 367 218 125ms 4 Jun 2024 238th Sticky-Bits 362 221 114ms 19 Apr 2019 239th andrew3600 359 223 116ms 19 Aug 2018 240th Elliott-R-Shaw 357 224 117ms 2 Feb 2023 First Prev 161–240 of 253 Next Last