The Calendar hole will go live in approximately 8 days. Why not try and solve it ahead of time?
Inventory Sequence 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 720th PyryL 🇫🇮 695 71 14ms 23 Aug 2024 720th Europe2048 695 71 18ms 24 Nov 2024 720th YAJUE114514 695 71 15ms 13 Jul 2025 720th madeforlosers 695 71 14ms 13 Nov 2025 725th CaedenHarper 🇨🇦 695 114 597ms 6 Oct 2025 726th MeWhenI 🇻🇦 693 54 9ms 17 Nov 2023 727th emgordon154 690 29 89ms 14 Nov 2025 728th Shanethegamer 🇺🇸 690 86 30ms 21 Apr 2023 729th snoozingnewt 🇨🇦 689 90 40ms 13 Oct 2025 730th h3ra993huskp 🇯🇵 689 115 462ms 23 days ago 731st prestosilver 🇺🇸 688 96 138ms 4 days ago 732nd Yewzir 🇧🇪 686 106 459ms 7 Feb 2024 733rd msbranicky 685 72 16ms 19 Aug 2023 733rd adamnielson42 🇺🇸 685 72 14ms 21 Aug 2023 733rd Masttest 685 72 14ms 15 Feb 2024 733rd Code-Coder-coder 685 72 13ms 24 Nov 2025 737th pardouin 🇫🇷 684 57 129ms 26 Jul 2025 738th BREMAUCY 🇫🇷 682 53 46ms 19 May 2023 738th annaproxy 682 53 53ms 22 Sep 2023 738th TheZwierzLF 🇵🇱 682 53 52ms 2 days ago 741st msbranicky 682 91 2ms 29 Sep 2023 742nd MeWhenI 🇻🇦 681 91 38ms 17 Feb 2023 743rd blaztoma 🇱🇹 679 97 81ms 2 Sep 2025 744th Yewzir 🇧🇪 679 203 2,509ms 14 Nov 2025 745th Kacarott 🇦🇺 678 251 3ms 27 Aug 2024 746th KrausRaus 🇺🇸 677 73 13ms 7 Dec 2022 746th LordSir101 677 73 14ms 8 Aug 2025 748th snoozingnewt 🇨🇦 677 127 120ms 13 Oct 2025 749th jhpaques 🇫🇷 676 73 39ms 30 Nov 2022 749th Andrey135296 676 73 16ms 21 Sep 2024 751st Shanethegamer 🇺🇸 676 98 20ms 23 Nov 2022 752nd arctouch-cristiannevianna 676 111 345ms 31 May 2023 753rd KatieLG 🇬🇧 672 98 106ms 15 Jan 2023 754th blaztoma 🇱🇹 672 132 120ms 25 days ago 755th olleicua 🇺🇸 667 30 355ms 11 Mar 2024 756th janAkali 🇷🇺 667 99 118ms 17 May 2025 757th janbehrens 🇩🇪 666 73 286ms 23 Nov 2022 758th za3k 666 74 11ms 20 Nov 2022 758th MaxElf999 666 74 21ms 21 Nov 2022 758th celiendonze 🇨🇭 666 74 15ms 25 Apr 2023 758th moustave 666 74 32ms 2 Dec 2024 762nd msbranicky 661 98 102ms 10 Jan 2024 763rd typeswitch-dev 🇵🇹 661 99 7ms 17 Aug 2023 764th kmathis22 661 120 790ms 27 Oct 2025 765th betaveros 658 75 13ms 31 Dec 2022 765th Wildst 658 75 14ms 7 Jul 2023 765th mosho-p 658 75 21ms 14 Sep 2023 765th eiburns 658 75 18ms 26 Oct 2023 769th CaedenHarper 🇨🇦 658 114 381ms 20 Oct 2025 770th tatzyr 🇯🇵 657 55 55ms 12 Feb 2025 771st MeWhenI 🇻🇦 655 75 89ms 13 Dec 2022 772nd RedzGoose 🇦🇺 655 99 97ms 11 Oct 2024 773rd MeWhenI 🇻🇦 655 100 4ms 20 Jul 2023 774th ovs-code 🇩🇪 653 90 24ms 21 Nov 2022 775th CarsonChr 🇺🇸 653 115 349ms 7 Apr 2024 776th copy 652 32 3ms 2 Oct 2025 777th emgordon154 652 91 27ms 30 Dec 2024 778th snoozingnewt 🇨🇦 652 101 86ms 13 Oct 2025 779th msbranicky 650 72 416ms 17 Jan 2024 780th weliveinhell 🇭🇹 650 76 16ms 18 Sep 2023 780th itserasmus 650 76 14ms 9 Apr 2024 780th eranws 650 76 13ms 23 Dec 2024 783rd edsrzf 🇳🇿 650 80 27ms 27 Aug 2025 784th Shanethegamer 🇺🇸 649 75 326ms 22 Apr 2025 785th Edjyzod 649 76 20ms 31 Mar 2023 786th MeWhenI 🇻🇦 647 96 11ms 9 May 2024 787th blaztoma 🇱🇹 647 102 123ms 3 Sep 2025 788th snoozingnewt 🇨🇦 644 68 734ms 13 Oct 2025 789th Squidled 641 77 14ms 3 Jan 2023 789th mbittner20 641 77 14ms 27 May 2023 789th HumanoidCPU 641 77 37ms 26 Jun 2024 789th xyangst 641 77 13ms 7 Oct 2024 789th xyangst 641 77 14ms 7 Oct 2024 794th msbranicky 641 103 120ms 19 Sep 2023 795th MeWhenI 🇻🇦 640 61 132ms 3 Aug 2024 796th snoozingnewt 🇨🇦 640 97 2ms 13 Oct 2025 797th Lydxn 🇨🇦 639 124 371ms 24 Jun 2023 798th Shanethegamer 🇺🇸 638 77 93ms 12 Dec 2022 799th ericlangedijk 🇸🇮 636 118 380ms 23 May 2023 800th epic-programmer-guy 635 102 188ms 3 Jan 2024 First Prev 721–800 of 1,614 Next Last