The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Lucky Numbers 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 721st edsrzf 🇳🇿 546 129 11ms 11 Nov 2025 722nd emgordon154 546 205 259ms 18 Jan 2025 723rd TobyBoyne 🇬🇧 544 93 3,068ms 3 Mar 2022 723rd P-Quentin 🇫🇷 544 93 23ms 10 Aug 2022 723rd jtaxen 544 93 98ms 26 Mar 2024 723rd jameswmccarty 544 93 11ms 10 Jul 2024 723rd codingisgreatbutiamnot 544 93 630ms 6 Aug 2025 728th rifatx 543 147 454ms 16 Jul 2024 729th albanian-laundromat 541 125 134ms 20 Aug 2025 730th 0xjac 🇨🇭 541 207 264ms 7 Jun 2025 731st Re-Adventures 🇮🇳 539 106 27ms 1 Feb 2023 732nd hamhub7 539 148 393ms 8 Aug 2022 733rd adamnielson42 🇺🇸 538 94 59ms 21 Aug 2023 733rd brochmann 🇸🇪 538 94 11ms 28 Oct 2023 733rd 40fied4t 538 94 35ms 1 Jun 2025 736th Shanethegamer 🇺🇸 538 167 146ms 27 Sep 2024 737th jacobly0 🇺🇸 538 208 263ms 17 Aug 2023 738th DialFrost 🇸🇬 536 71 55ms 31 Oct 2023 739th MeWhenI 🇻🇦 534 92 556ms 15 Feb 2023 740th rifatx 533 210 268ms 17 Jul 2024 741st Yewzir 🇧🇪 533 278 2,754ms 15 Nov 2025 742nd m42km 532 95 48ms 16 Dec 2023 742nd Natanaelel 🇸🇪 532 95 29ms 15 Jul 2025 744th retrohun 532 100 669ms 1 Mar 2022 745th snyderek 🇺🇸 532 163 99ms 17 Oct 2024 746th Protothor 529 108 10ms 21 Jun 2025 747th edsrzf 🇳🇿 528 212 291ms 8 Nov 2024 748th j-Ewan 527 96 98ms 4 Mar 2022 748th nullie 527 96 79ms 9 Jun 2022 748th andrewjc2000 527 96 27ms 28 Jul 2025 751st JGDoerrer 526 173 164ms 5 Apr 2022 752nd annaproxy 525 152 350ms 28 Mar 2022 753rd GolfinK 521 53 35ms 22 Nov 2024 754th Bmrl7 521 97 111ms 29 Mar 2024 754th IsaacAlexBarden 521 97 26ms 13 Feb 2025 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 ibexq 520 131 11ms 2 May 2023 760th MeWhenI 🇻🇦 519 147 1,243ms 10 Mar 2022 761st Lv0Sys 🇵🇱 518 86 322ms 12 days ago 762nd kmathis22 518 216 254ms 10 Oct 2025 763rd sleepyStick 516 98 9ms 11 Mar 2022 763rd damoose717 516 98 11ms 24 May 2025 765th kmathis22 516 176 473ms 11 days ago 766th janbehrens 🇩🇪 515 157 494ms 24 Mar 2022 767th TheZwierzLF 🇵🇱 512 87 2,166ms 2 days ago 768th Andrey135296 511 99 192ms 29 Nov 2024 769th MeWhenI 🇻🇦 509 131 27ms 6 Aug 2023 770th Yewzir 🇧🇪 509 220 269ms 3 Jan 2024 771st CatsAreFluffy 508 134 15ms 27 Jan 2023 772nd emgordon154 507 100 286ms 6 Sep 2024 773rd Fishron 506 100 105ms 18 Jun 2022 773rd vishwathg 506 100 106ms 5 Oct 2023 773rd 4ndyJ 🇬🇧 506 100 205ms 23 Dec 2023 773rd chartung17 506 100 115ms 1 Jan 2024 777th MathisBullinger 506 113 48ms 27 Mar 2022 778th akusumoto 🇯🇵 505 180 153ms 30 Mar 2022 779th msbranicky 503 146 3,837ms 7 Jan 2025 780th MeWhenI 🇻🇦 501 76 45ms 16 Apr 2023 781st MeWhenI 🇻🇦 501 93 119ms 12 Dec 2022 782nd celiendonze 🇨🇭 501 101 110ms 18 Jul 2023 782nd namelessiw 501 101 115ms 13 Jul 2024 782nd moustave 501 101 225ms 3 Dec 2024 782nd Andre3582 501 101 13ms 8 Oct 2025 786th ashtraypettingzoo 🇺🇸 501 126 451ms 12 Feb 2023 787th jupj 🇫🇮 501 136 13ms 19 Oct 2022 788th bac0id 499 160 392ms 30 Jun 2024 789th targrik 497 115 12ms 27 Mar 2025 789th madeforlosers 497 115 17ms 3 Nov 2025 791st inverseLorentz 🇦🇺 496 102 12ms 5 May 2023 791st WillowWispy 496 102 30ms 17 Mar 2025 791st mousetail 🇳🇱 496 102 270ms 26 Sep 2025 791st madeforlosers 496 102 10ms 11 Nov 2025 795th DialFrost 🇸🇬 496 142 491ms 3 May 2025 796th ChrisTheisen 495 161 362ms 20 Dec 2022 797th adriweb 🇫🇷 494 137 34ms 26 Sep 2023 798th Bonjour27891 🇻🇳 491 103 40ms 4 Mar 2022 798th AlexanderFair 491 103 742ms 25 Jul 2023 800th MaxCastella 🇫🇷 489 103 304ms 8 Nov 2023 First Prev 721–800 of 1,526 Next Last