The Calendar hole will go live in approximately 4 hours. Why not try and solve it ahead of time?
Inventory Sequence 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 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 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 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 720th MaxElf999 705 74 21ms 21 Nov 2022 720th celiendonze 🇨🇭 705 74 15ms 25 Apr 2023 720th willschremmer 705 74 20ms 11 May 2024 720th moustave 705 74 32ms 2 Dec 2024 725th RockOfStone 705 88 2ms 9 Mar 2024 726th MeWhenI 🇻🇦 702 46 2ms 15 Apr 2023 727th blaztoma 🇱🇹 702 70 89ms 17 Aug 2025 728th msbranicky 700 123 117ms 19 Sep 2023 729th blaztoma 🇱🇹 698 89 38ms 16 Aug 2025 730th Shanethegamer 🇺🇸 697 93 212ms 21 Apr 2025 731st blaztoma 🇱🇹 697 124 26ms 2 Sep 2025 732nd MeWhenI 🇻🇦 696 61 132ms 3 Aug 2024 733rd akshatj27 🇦🇶 696 71 20ms 12 Dec 2022 734th betaveros 696 75 13ms 31 Dec 2022 734th Wildst 696 75 14ms 7 Jul 2023 734th mosho-p 696 75 21ms 14 Sep 2023 734th eiburns 696 75 18ms 26 Oct 2023 738th ovs-code 🇩🇪 696 94 11ms 18 Jul 2023 739th HumanoidCPU 695 52 51ms 26 Jun 2024 740th CaedenHarper 🇨🇦 695 114 597ms 6 Oct 2025 741st MeWhenI 🇻🇦 693 54 8ms 17 Nov 2023 742nd emgordon154 690 29 76ms 14 Nov 2025 743rd Shanethegamer 🇺🇸 690 86 30ms 21 Apr 2023 744th snoozingnewt 🇨🇦 690 90 40ms 13 Oct 2025 745th h3ra993huskp 🇯🇵 689 115 462ms 30 Nov 2025 746th msbranicky 688 72 489ms 17 Jan 2024 747th Edjyzod 686 76 20ms 31 Mar 2023 748th Yewzir 🇧🇪 686 106 459ms 7 Feb 2024 749th MeWhenI 🇻🇦 683 91 38ms 17 Feb 2023 750th BREMAUCY 🇫🇷 682 53 36ms 19 May 2023 750th annaproxy 682 53 50ms 22 Sep 2023 750th TheZwierzLF 🇵🇱 682 53 43ms 10 days ago 753rd msbranicky 682 91 2ms 29 Sep 2023 754th blaztoma 🇱🇹 679 97 81ms 2 Sep 2025 755th janbehrens 🇩🇪 678 73 256ms 23 Nov 2022 756th snoozingnewt 🇨🇦 678 127 120ms 13 Oct 2025 757th blaztoma 🇱🇹 678 132 120ms 27 Nov 2025 758th Yewzir 🇧🇪 678 204 2,509ms 14 Nov 2025 759th Kacarott 🇦🇺 678 251 3ms 27 Aug 2024 760th KrausRaus 🇺🇸 677 73 18ms 7 Dec 2022 760th LordSir101 677 73 19ms 8 Aug 2025 762nd Squidled 677 77 14ms 3 Jan 2023 762nd mbittner20 677 77 14ms 27 May 2023 762nd xyangst 677 77 14ms 7 Oct 2024 765th Shanethegamer 🇺🇸 676 98 20ms 23 Nov 2022 766th arctouch-cristiannevianna 676 111 345ms 31 May 2023 767th ovs-code 🇩🇪 672 90 24ms 21 Nov 2022 768th KatieLG 🇬🇧 672 98 106ms 15 Jan 2023 769th olleicua 🇺🇸 667 30 292ms 11 Mar 2024 770th janAkali 🇷🇺 667 99 118ms 17 May 2025 771st msbranicky 661 98 118ms 10 Jan 2024 772nd typeswitch-dev 🇵🇹 661 99 7ms 17 Aug 2023 773rd kmathis22 661 120 790ms 27 Oct 2025 774th Shanethegamer 🇺🇸 660 75 297ms 22 Apr 2025 775th Techdude01 660 79 14ms 20 Jan 2023 775th rollershutter 660 79 43ms 4 Jul 2023 775th bob-th 660 79 14ms 19 Aug 2023 775th qwjhvbxi 660 79 15ms 6 Feb 2024 779th CaedenHarper 🇨🇦 658 114 381ms 20 Oct 2025 780th tatzyr 🇯🇵 657 55 40ms 12 Feb 2025 781st MeWhenI 🇻🇦 655 75 89ms 13 Dec 2022 782nd RedzGoose 🇦🇺 655 99 116ms 11 Oct 2024 783rd MeWhenI 🇻🇦 655 100 4ms 20 Jul 2023 784th CarsonChr 🇺🇸 653 115 349ms 7 Apr 2024 785th copy 652 32 3ms 2 Oct 2025 786th blaztoma 🇱🇹 652 76 563ms 2 Sep 2025 787th Vaekor 652 80 15ms 9 Jul 2023 787th rucin93 🇵🇱 652 80 22ms 10 Feb 2024 787th JunkIce 652 80 14ms 26 Dec 2024 787th fuzzylojik-golf 🇺🇸 652 80 15ms 9 Jun 2025 787th Flekay 🇩🇪 652 80 14ms 10 Jul 2025 792nd emgordon154 652 91 27ms 30 Dec 2024 793rd snoozingnewt 🇨🇦 652 101 86ms 13 Oct 2025 794th weliveinhell 🇭🇹 650 76 16ms 18 Sep 2023 794th itserasmus 650 76 14ms 9 Apr 2024 794th eranws 650 76 15ms 23 Dec 2024 797th edsrzf 🇳🇿 650 80 27ms 27 Aug 2025 798th blaztoma 🇱🇹 647 102 123ms 3 Sep 2025 799th snoozingnewt 🇨🇦 644 68 734ms 13 Oct 2025 800th fkantelberg 644 81 11ms 23 Jul 2023 First Prev 721–800 of 1,635 Next Last