The Calendar hole will go live in approximately 8 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 721st WillConker 596 156 192ms 25 Oct 2024 722nd kmathis22 596 165 456ms 28 Oct 2025 723rd madeforlosers 595 121 8ms 11 Jan 2024 724th pandapawskat 595 129 1ms 4 Oct 2021 725th roavin 593 144 383ms 28 Jul 2022 726th olleicua 🇺🇸 591 44 45ms 11 Mar 2024 727th Shanethegamer 🇺🇸 591 77 37ms 16 Dec 2022 727th aksyristos 591 77 34ms 31 Jan 2023 729th JunkIce 591 88 357ms 19 Jan 2025 729th CaedenHarper 🇨🇦 591 88 454ms 28 Jan 2025 731st prplz 🇦🇺 590 62 123ms 22 Mar 2020 731st scpchicken 🇵🇼 590 62 126ms 26 Mar 2022 733rd giacomogallina 590 93 17ms 14 Jun 2019 733rd loserface69 590 93 9ms 15 Mar 2020 733rd Kloppermand 🇩🇰 590 93 9ms 6 Jan 2023 733rd thisishowmymindworks 🇳🇴 590 93 9ms 31 May 2023 733rd jesterjunk 590 93 9ms 23 Sep 2025 738th gigaprofisi 🇺🇸 590 122 8ms 18 Jun 2025 739th Natanaelel 🇸🇪 589 65 2ms 9 Aug 2021 740th lahell 588 81 237ms 7 Jun 2020 741st Skepfyr 588 158 130ms 4 Jan 2020 742nd jerrandolph 588 181 274ms 16 Apr 2020 743rd KatieLG 🇬🇧 585 123 9ms 5 Oct 2025 744th Yewzir 🇧🇪 585 182 264ms 29 Oct 2023 745th OllieBoyne 🇬🇧 584 94 9ms 17 Sep 2022 745th Eilonlif 🇮🇱 584 94 9ms 4 Nov 2022 745th stefangimmillaro 584 94 10ms 6 Jul 2023 745th mathisfun271 584 94 9ms 16 Dec 2023 749th rak1507 🇬🇧 583 55 32ms 21 Feb 2022 750th D-MOVE 🇵🇭 583 78 53ms 15 days ago 751st czylabsonasa 🇭🇺 582 98 358ms 21 Oct 2021 752nd 12Jeef 582 169 411ms 1 Sep 2023 752nd yoshykai 582 169 385ms 30 Mar 2025 754th DialFrost 🇸🇬 581 82 254ms 7 Jun 2024 755th kdx2a 581 132 2ms 13 Feb 2025 756th Mabeloid 🇳🇴 581 160 143ms 31 Oct 2025 757th MeWhenI 🇻🇦 580 120 1ms 10 Oct 2023 758th itserasmus 580 124 8ms 25 Jan 2024 759th DestyNova 🇮🇪 579 135 364ms 15 Aug 2022 760th adriweb 🇫🇷 579 139 19ms 26 Jan 2024 761st Natanaelel 🇸🇪 578 45 45ms 29 Jul 2022 762nd MeWhenI 🇻🇦 578 91 4ms 16 Aug 2024 763rd tomtheisen 🇺🇸 578 95 9ms 4 Dec 2019 763rd jiaminglimjm 🇲🇾 578 95 10ms 29 Feb 2020 763rd Fishron 578 95 39ms 14 Oct 2021 763rd jdw1023 578 95 10ms 26 Apr 2022 763rd NanduBC 578 95 9ms 6 Sep 2024 763rd EnTerr 578 95 10ms 15 Sep 2024 763rd wuduculfre 578 95 10ms 21 Jul 2025 770th olleicua 🇺🇸 576 79 32ms 15 Jan 2024 771st weliveinhell 🇭🇹 576 125 9ms 24 Jan 2024 771st CaedenHarper 🇨🇦 576 125 9ms 31 Aug 2025 773rd prplz 🇦🇺 576 188 25ms 10 Jul 2021 774th Yewzir 🇧🇪 575 144 6ms 17 Dec 2023 775th janbehrens 🇩🇪 575 171 388ms 20 Jul 2022 776th MeWhenI 🇻🇦 574 157 433ms 5 Mar 2022 777th prplz 🇦🇺 574 162 119ms 7 Jan 2020 777th Xzyaihni 574 162 152ms 16 Oct 2022 779th SirBogman 🇺🇸 574 330 13ms 23 Nov 2022 780th janbehrens 🇩🇪 573 114 850ms 7 Apr 2023 781st filharmonista 573 134 2ms 23 Nov 2019 781st slerpyyy 🇩🇪 573 134 2ms 3 Nov 2022 783rd yzhs 🇩🇪 573 136 129ms 25 Jun 2023 784th Shanethegamer 🇺🇸 573 159 440ms 29 Apr 2022 785th b-jam 572 96 11ms 7 Dec 2019 785th ragmani 572 96 9ms 18 Dec 2020 785th 2011-Chan-Ethan 572 96 10ms 20 Jul 2023 788th ForkKILLET 🇨🇳 571 126 8ms 17 Feb 2021 788th lukasmoellerch 571 126 8ms 28 Apr 2021 790th CaedenHarper 🇨🇦 570 110 772ms 9 Sep 2025 791st Ernest1338 570 163 194ms 6 Oct 2023 792nd Shanethegamer 🇺🇸 567 139 97ms 31 Oct 2022 793rd Shanethegamer 🇺🇸 567 191 64ms 29 Apr 2022 794th davitf 566 97 9ms 6 Jul 2020 794th Bubbler-4 566 97 9ms 2 Nov 2022 794th rollershutter 566 97 9ms 30 Jan 2024 794th Powerroff 566 97 10ms 4 May 2024 798th Irratix 🇳🇱 564 136 2ms 25 Dec 2021 798th Shanethegamer 🇺🇸 564 136 2ms 28 Apr 2022 798th jupj 🇫🇮 564 136 2ms 19 Aug 2022 First Prev 721–800 of 2,407 Next Last