The Calendar hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Diamonds 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 481st MeWhenI 🇻🇦 704 112 5ms 12 Sep 2022 482nd dokutan 703 92 3ms 2 days ago 483rd neihousaigaai 703 93 998ms 13 Feb 2024 484th arjanadriaanse 🇳🇱 703 111 122ms 7 Feb 2022 485th typeswitch-dev 🇵🇹 703 122 3ms 22 Jul 2023 486th Shanethegamer 🇺🇸 702 112 1,274ms 24 Jan 2024 487th qwertyuiop3 🇷🇺 701 130 63ms 29 May 2025 488th prplz 🇦🇺 700 65 37ms 3 Jan 2020 489th omurakazuaki 🇯🇵 698 103 9ms 18 Feb 2021 489th neihousaigaai 698 103 9ms 17 Mar 2021 491st 4hg 🇺🇸 696 94 1,028ms 8 Dec 2022 492nd mokymok 🇺🇸 695 79 10ms 23 Jul 2021 492nd jakobkordez 🇸🇮 695 79 9ms 31 Oct 2022 492nd BlankSpruce 695 79 9ms 28 Aug 2024 492nd Babafaba 695 79 10ms 12 Nov 2025 492nd Lv0Sys 🇵🇱 695 79 10ms 27 days ago 497th emgordon154 694 75 452ms 1 Aug 2024 497th snoozingnewt 🇨🇦 694 75 397ms 28 Sep 2025 499th Yewzir 🇧🇪 694 221 2,560ms 14 Nov 2025 500th GrayJoKing 🇦🇺 692 76 4ms 11 Sep 2024 501st Shanethegamer 🇺🇸 692 104 8ms 28 Apr 2022 501st trinityy-7 692 104 9ms 22 Jul 2025 503rd MeWhenI 🇻🇦 691 111 1ms 13 Aug 2024 504th Euler-37 690 106 39ms 4 Jun 2023 505th KasperKivimaeki 🇫🇮 690 132 2,429ms 20 Nov 2025 506th stefangimmillaro 689 66 35ms 6 Jan 2023 506th anter69 🇭🇺 689 66 36ms 25 Jan 2023 506th tatzyr 🇯🇵 689 66 37ms 10 Dec 2024 509th MeWhenI 🇻🇦 687 83 330ms 14 Feb 2023 510th albanian-laundromat 687 94 71ms 20 Nov 2025 511th emgordon154 687 223 1,848ms 6 days ago 512th Shanethegamer 🇺🇸 686 80 10ms 20 Aug 2021 513th Attero 🇸🇪 685 112 2ms 28 May 2020 513th keelimeguy 🇺🇸 685 112 2ms 4 Nov 2023 515th drabart 🇵🇱 685 133 2,447ms 17 Nov 2023 516th plcc0 684 38 37ms 3 Mar 2025 517th o0lit3 🇺🇸 684 56 2ms 25 Sep 2020 517th kurkale6ka 684 56 2ms 3 Sep 2021 517th scpchicken 🇵🇼 684 56 2ms 4 Jan 2023 520th anastos 684 114 120ms 23 Jul 2018 520th DanielVenable 684 114 122ms 26 Mar 2025 522nd tdkkdt 🇷🇺 683 125 404ms 21 Nov 2021 523rd yzzyx 683 156 266ms 21 Apr 2020 524th DestyNova 🇮🇪 681 96 992ms 13 Aug 2022 525th MichalMarsalek 🇨🇿 681 184 2ms 2 Apr 2022 526th sean-niemann 🇺🇸 680 134 426ms 4 Jan 2022 526th keelimeguy 🇺🇸 680 134 391ms 4 Nov 2023 528th retrohun 679 85 1ms 25 Aug 2024 529th janbehrens 🇩🇪 679 106 9ms 20 Jul 2022 529th DialFrost 🇸🇬 679 106 8ms 5 Oct 2023 531st sean-niemann 🇺🇸 679 113 1ms 5 Jan 2022 531st Heathcorp 🇦🇺 679 113 1ms 25 Oct 2022 531st snoozingnewt 🇨🇦 679 113 1ms 23 Sep 2023 531st madex 🇩🇪 679 113 2ms 9 Jul 2024 531st LostSyntax21 🇬🇧 679 113 2ms 2 Dec 2024 531st LvLError 679 113 2ms 29 May 2025 531st Lv0Sys 🇵🇱 679 113 2ms 30 May 2025 538th Shanethegamer 🇺🇸 679 114 104ms 10 Dec 2022 539th verticallity 679 137 154ms 6 Apr 2022 540th yokasuretsu 678 54 138ms 21 Jun 2018 541st jacklynnepenick 678 81 17ms 20 Aug 2021 542nd cbrt-x 678 115 112ms 4 Oct 2023 543rd bendiscz 678 157 268ms 18 Apr 2020 544th AdrienHache 🇫🇷 677 126 425ms 30 Nov 2025 545th emplv 🇱🇻 675 93 5ms 3 Oct 2023 546th AutumnWind75 675 135 405ms 18 days ago 547th jacobly0 🇺🇸 675 227 1,725ms 22 Apr 2024 548th pilaf 🇦🇷 674 97 1,122ms 6 Apr 2022 548th Andriamanitra 🇫🇮 674 97 1,105ms 2 Jan 2024 550th steffan-polygolf 674 116 266ms 7 Mar 2024 551st elgan65536 674 138 127ms 22 Oct 2023 552nd janbehrens 🇩🇪 672 127 382ms 17 Apr 2025 552nd MeWhenI 🇻🇦 672 127 344ms 19 Jun 2025 554th dcgjb 671 71 239ms 4 Jun 2024 555th RockOfStone 671 120 2ms 9 Mar 2024 556th prplz 🇦🇺 671 137 495ms 20 Oct 2020 557th daedals 669 82 15ms 19 Jun 2019 557th FlorianCassayre 🇫🇷 669 82 11ms 24 May 2024 557th HumanoidCPU 669 82 10ms 9 May 2025 560th lynn 668 48 33ms 9 May 2021 First Prev 481–560 of 2,411 Next Last
