The Calendar hole will go live in approximately 12 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 718th YAJUE114514 695 71 15ms 13 Jul 2025 718th madeforlosers 695 71 14ms 13 Nov 2025 723rd CaedenHarper 🇨🇦 695 114 597ms 6 Oct 2025 724th MeWhenI 🇻🇦 693 54 9ms 17 Nov 2023 725th albanian-laundromat 692 58 2ms 15 days ago 726th emgordon154 690 29 89ms 14 Nov 2025 727th Shanethegamer 🇺🇸 690 86 30ms 21 Apr 2023 728th snoozingnewt 🇨🇦 689 90 40ms 13 Oct 2025 729th h3ra993huskp 🇯🇵 689 115 462ms 19 days ago 730th prestosilver 🇺🇸 688 96 138ms 10 hours ago 731st Yewzir 🇧🇪 686 106 459ms 7 Feb 2024 732nd msbranicky 685 72 16ms 19 Aug 2023 732nd adamnielson42 🇺🇸 685 72 14ms 21 Aug 2023 732nd Masttest 685 72 14ms 15 Feb 2024 732nd Code-Coder-coder 685 72 13ms 25 days ago 736th pardouin 🇫🇷 684 57 129ms 26 Jul 2025 737th BREMAUCY 🇫🇷 682 53 46ms 19 May 2023 737th annaproxy 682 53 53ms 22 Sep 2023 739th msbranicky 682 91 2ms 29 Sep 2023 740th MeWhenI 🇻🇦 681 91 38ms 17 Feb 2023 741st blaztoma 🇱🇹 679 97 81ms 2 Sep 2025 742nd Yewzir 🇧🇪 679 203 2,509ms 14 Nov 2025 743rd Kacarott 🇦🇺 678 251 3ms 27 Aug 2024 744th KrausRaus 🇺🇸 677 73 13ms 7 Dec 2022 744th LordSir101 677 73 14ms 8 Aug 2025 746th snoozingnewt 🇨🇦 677 127 120ms 13 Oct 2025 747th jhpaques 🇫🇷 676 73 39ms 30 Nov 2022 747th Andrey135296 676 73 16ms 21 Sep 2024 749th Shanethegamer 🇺🇸 676 98 20ms 23 Nov 2022 750th arctouch-cristiannevianna 676 111 345ms 31 May 2023 751st KatieLG 🇬🇧 672 98 106ms 15 Jan 2023 752nd blaztoma 🇱🇹 672 132 120ms 22 days ago 753rd olleicua 🇺🇸 667 30 355ms 11 Mar 2024 754th janAkali 🇷🇺 667 99 118ms 17 May 2025 755th janbehrens 🇩🇪 666 73 286ms 23 Nov 2022 756th za3k 666 74 11ms 20 Nov 2022 756th MaxElf999 666 74 21ms 21 Nov 2022 756th celiendonze 🇨🇭 666 74 15ms 25 Apr 2023 756th moustave 666 74 32ms 2 Dec 2024 760th msbranicky 661 98 102ms 10 Jan 2024 761st typeswitch-dev 🇵🇹 661 99 7ms 17 Aug 2023 762nd kmathis22 661 120 790ms 27 Oct 2025 763rd betaveros 658 75 13ms 31 Dec 2022 763rd Wildst 658 75 14ms 7 Jul 2023 763rd mosho-p 658 75 21ms 14 Sep 2023 763rd eiburns 658 75 18ms 26 Oct 2023 767th CaedenHarper 🇨🇦 658 114 381ms 20 Oct 2025 768th tatzyr 🇯🇵 657 55 55ms 12 Feb 2025 769th MeWhenI 🇻🇦 655 75 89ms 13 Dec 2022 770th RedzGoose 🇦🇺 655 99 97ms 11 Oct 2024 771st MeWhenI 🇻🇦 655 100 4ms 20 Jul 2023 772nd ovs-code 🇩🇪 653 90 24ms 21 Nov 2022 773rd CarsonChr 🇺🇸 653 115 349ms 7 Apr 2024 774th copy 652 32 3ms 2 Oct 2025 775th emgordon154 652 91 27ms 30 Dec 2024 776th snoozingnewt 🇨🇦 652 101 86ms 13 Oct 2025 777th msbranicky 650 72 416ms 17 Jan 2024 778th weliveinhell 🇭🇹 650 76 16ms 18 Sep 2023 778th itserasmus 650 76 14ms 9 Apr 2024 778th eranws 650 76 13ms 23 Dec 2024 781st edsrzf 🇳🇿 650 80 27ms 27 Aug 2025 782nd Shanethegamer 🇺🇸 649 75 326ms 22 Apr 2025 783rd Edjyzod 649 76 20ms 31 Mar 2023 784th MeWhenI 🇻🇦 647 96 11ms 9 May 2024 785th blaztoma 🇱🇹 647 102 123ms 3 Sep 2025 786th TheZwierzLF 🇵🇱 645 56 35ms 3 days ago 787th snoozingnewt 🇨🇦 644 68 734ms 13 Oct 2025 788th xyangst 641 77 13ms 7 Oct 2024 789th msbranicky 641 103 120ms 19 Sep 2023 790th MeWhenI 🇻🇦 640 61 132ms 3 Aug 2024 791st Squidled 640 77 14ms 3 Jan 2023 791st mbittner20 640 77 14ms 27 May 2023 791st HumanoidCPU 640 77 37ms 26 Jun 2024 791st xyangst 640 77 14ms 7 Oct 2024 795th snoozingnewt 🇨🇦 640 97 2ms 13 Oct 2025 796th Lydxn 🇨🇦 639 124 371ms 24 Jun 2023 797th Shanethegamer 🇺🇸 638 77 93ms 12 Dec 2022 798th ericlangedijk 🇸🇮 636 118 380ms 23 May 2023 799th epic-programmer-guy 635 102 188ms 3 Jan 2024 800th edsrzf 🇳🇿 634 98 17ms 6 Jan 2025 First Prev 721–800 of 1,613 Next Last