The Calendar hole will go live in approximately 8 days. Why not try and solve it ahead of time?
Lucky Numbers 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 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 719th andrewjc2000 546 96 27ms 28 Jul 2025 722nd emgordon154 546 205 259ms 18 Jan 2025 723rd rifatx 543 147 454ms 16 Jul 2024 724th Bmrl7 541 97 111ms 29 Mar 2024 724th Deedogg 541 97 35ms 9 Sep 2024 724th IsaacAlexBarden 541 97 26ms 13 Feb 2025 724th albanian-laundromat 541 97 3,887ms 11 May 2025 728th albanian-laundromat 541 125 134ms 20 Aug 2025 729th 0xjac 🇨🇭 541 207 264ms 7 Jun 2025 730th Re-Adventures 🇮🇳 539 106 27ms 1 Feb 2023 731st hamhub7 539 148 393ms 8 Aug 2022 732nd DialFrost 🇸🇬 538 142 491ms 3 May 2025 733rd Shanethegamer 🇺🇸 538 167 146ms 27 Sep 2024 734th jacobly0 🇺🇸 538 208 263ms 17 Aug 2023 735th SirFireball3521 537 85 951ms 15 Mar 2023 736th sleepyStick 535 98 9ms 11 Mar 2022 736th damoose717 535 98 11ms 24 May 2025 738th rifatx 533 210 268ms 17 Jul 2024 739th Yewzir 🇧🇪 533 278 2,754ms 15 Nov 2025 740th retrohun 532 100 669ms 1 Mar 2022 741st snyderek 🇺🇸 532 163 99ms 17 Oct 2024 742nd Andrey135296 530 99 192ms 29 Nov 2024 743rd Protothor 529 108 10ms 21 Jun 2025 744th MeWhenI 🇻🇦 528 93 556ms 15 Feb 2023 745th edsrzf 🇳🇿 528 212 291ms 8 Nov 2024 746th janbehrens 🇩🇪 527 87 4ms 6 Apr 2022 746th blaztoma 🇱🇹 527 87 35ms 24 Nov 2025 748th ibexq 527 131 11ms 2 May 2023 749th JGDoerrer 526 173 164ms 5 Apr 2022 750th Fishron 525 100 105ms 18 Jun 2022 750th vishwathg 525 100 106ms 5 Oct 2023 750th 4ndyJ 🇬🇧 525 100 205ms 23 Dec 2023 750th chartung17 525 100 115ms 1 Jan 2024 754th annaproxy 525 152 350ms 28 Mar 2022 755th GolfinK 521 53 35ms 22 Nov 2024 756th janbehrens 🇩🇪 521 153 347ms 3 Mar 2022 757th JRaspass 🇬🇧 521 215 261ms 7 Feb 2024 758th XenThe 🇬🇧 520 110 12ms 6 Jul 2025 759th celiendonze 🇨🇭 519 101 110ms 18 Jul 2023 759th namelessiw 519 101 115ms 13 Jul 2024 759th moustave 519 101 225ms 3 Dec 2024 759th Andre3582 519 101 13ms 8 Oct 2025 763rd MeWhenI 🇻🇦 519 147 1,243ms 10 Mar 2022 764th Lv0Sys 🇵🇱 518 86 322ms 16 days ago 765th kmathis22 518 177 438ms 20 Nov 2025 766th kmathis22 518 216 254ms 10 Oct 2025 767th CatsAreFluffy 515 134 15ms 27 Jan 2023 768th janbehrens 🇩🇪 515 157 494ms 24 Mar 2022 769th inverseLorentz 🇦🇺 514 102 12ms 5 May 2023 769th cingulataluke 514 102 46ms 29 Aug 2023 769th wh3n3v3r 🇨🇿 514 102 26ms 12 Nov 2024 769th WillowWispy 514 102 30ms 17 Mar 2025 769th mousetail 🇳🇱 514 102 270ms 26 Sep 2025 769th madeforlosers 514 102 10ms 11 Nov 2025 775th TheZwierzLF 🇵🇱 512 87 2,166ms 6 days ago 776th JRaspass 🇬🇧 510 90 20ms 22 Sep 2022 777th Bonjour27891 🇻🇳 509 103 40ms 4 Mar 2022 777th AlexanderFair 509 103 742ms 25 Jul 2023 777th CheeseCake628 🇳🇴 509 103 31ms 23 Dec 2023 780th MeWhenI 🇻🇦 509 131 27ms 6 Aug 2023 781st jupj 🇫🇮 507 136 13ms 19 Oct 2022 782nd MathisBullinger 506 113 48ms 27 Mar 2022 782nd emgordon154 506 113 37ms 9 Aug 2024 784th Yewzir 🇧🇪 506 221 272ms 25 Oct 2023 785th akusumoto 🇯🇵 505 180 153ms 30 Mar 2022 786th yzhs 🇩🇪 504 104 12ms 3 Jun 2022 786th eiburns 504 104 33ms 25 Aug 2023 788th msbranicky 503 146 3,837ms 7 Jan 2025 789th MeWhenI 🇻🇦 501 93 119ms 12 Dec 2022 790th ashtraypettingzoo 🇺🇸 501 126 451ms 12 Feb 2023 791st twocatsinatrenchcoat 500 105 36ms 29 Mar 2022 791st yuchuehw 500 105 37ms 28 Jan 2024 791st xyangst 500 105 39ms 18 Oct 2024 791st vhoulbreque 🇫🇷 500 105 11ms 11 Feb 2025 795th targrik 497 115 12ms 27 Mar 2025 795th madeforlosers 497 115 17ms 3 Nov 2025 797th namelessiw 495 101 563ms 13 Jul 2024 798th Marthe-CC 495 106 638ms 16 Oct 2022 798th CatsAreFluffy 495 106 96ms 10 Jan 2023 798th tobyLovick 495 106 27ms 13 Feb 2025 First Prev 721–800 of 1,537 Next Last