The Calendar hole will go live in approximately 10 days. Why not try and solve it ahead of time?
Proximity Grid 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 241st albanian-laundromat 663 136 93ms 22 Aug 2025 242nd MeWhenI 🇻🇦 662 290 1,775ms 7 Nov 2025 243rd jared-hughes 660 225 448ms 4 Aug 2022 244th MeWhenI 🇻🇦 659 113 467ms 15 Feb 2023 245th annaproxy 658 244 400ms 11 Apr 2025 246th retrohun 656 175 1,893ms 5 Aug 2022 247th Shanethegamer 🇺🇸 653 138 73ms 28 Apr 2023 248th janbehrens 🇩🇪 653 246 337ms 26 Nov 2022 249th albanian-laundromat 651 237 43ms 14 days ago 250th MeWhenI 🇻🇦 650 120 271ms 28 Jan 2023 251st albanian-laundromat 649 131 450ms 12 Sep 2025 252nd ovs-code 🇩🇪 648 139 25ms 25 days ago 253rd AlephSquirrel 645 245 75ms 3 Oct 2025 254th nwellnhof 🇩🇪 644 140 52ms 11 Jul 2023 255th emgordon154 643 154 15ms 8 Aug 2024 256th nwellnhof 🇩🇪 642 154 89ms 16 Aug 2022 257th jared-hughes 641 201 5ms 4 Aug 2022 258th MeWhenI 🇻🇦 641 327 45ms 4 Sep 2024 259th Artemis21 🇬🇧 639 141 169ms 10 Jan 2025 260th nwellnhof 🇩🇪 638 96 309ms 12 Jul 2023 261st rucin93 🇵🇱 637 130 129ms 31 Oct 2024 262nd Shanethegamer 🇺🇸 637 191 69ms 13 Jun 2024 263rd m-tkach 🇺🇦 637 382 2,599ms 15 Jan 2025 264th itsh01 634 156 12ms 17 Aug 2022 265th blaztoma 🇱🇹 630 101 15ms 9 days ago 266th jatloe 630 143 68ms 29 Oct 2024 267th Natanaelel 🇸🇪 627 258 344ms 27 Apr 2025 268th ndren 626 144 449ms 10 Oct 2023 269th targrik 623 168 19ms 20 Aug 2025 270th stefangimmillaro 622 2,255 6ms 27 Sep 2023 271st 5cw 🇺🇸 621 145 73ms 14 May 2024 272nd ovs-code 🇩🇪 620 137 561ms 25 days ago 273rd Shanethegamer 🇺🇸 616 138 461ms 20 Oct 2024 274th MeWhenI 🇻🇦 616 270 6ms 25 Dec 2022 275th Natanaelel 🇸🇪 615 106 225ms 14 Nov 2024 276th sisyphus-ppcg 🇦🇺 613 147 55ms 5 Aug 2022 276th stefangimmillaro 613 147 20ms 28 Sep 2023 276th xsot 🇸🇬 613 147 70ms 16 Jun 2024 279th emgordon154 610 107 55ms 2 Aug 2024 280th bricknellj 609 148 77ms 6 Feb 2025 280th snoozingnewt 🇨🇦 609 148 12ms 20 Nov 2025 282nd MeWhenI 🇻🇦 608 237 41ms 29 Apr 2025 283rd MeWhenI 🇻🇦 605 149 152ms 5 Aug 2022 283rd bizy-coder 605 149 22ms 29 hours ago 285th clockworknazo 602 166 137ms 13 Oct 2022 286th jared-hughes 601 191 1,902ms 4 Aug 2022 287th MeWhenI 🇻🇦 600 238 101ms 10 Jun 2024 288th emgordon154 599 143 1,037ms 25 Nov 2024 289th GrayJoKing 🇦🇺 598 109 86ms 27 Dec 2023 290th Salutations45 596 166 11ms 19 Jan 2025 291st snoozingnewt 🇨🇦 590 144 378ms 20 Nov 2025 292nd edsrzf 🇳🇿 589 153 25ms 9 Jun 2025 293rd GolfingSuccess 🇬🇷 588 68 253ms 4 Aug 2022 294th SB-945 585 154 42ms 17 Apr 2024 294th ryyyn 🇺🇸 585 154 73ms 10 Jun 2025 296th Natanaelel 🇸🇪 582 94 30ms 25 Jul 2023 297th coreynash 582 170 13ms 6 Feb 2024 298th Shanethegamer 🇺🇸 582 240 434ms 1 Feb 2025 299th m-tkach 🇺🇦 578 257 87ms 12 Aug 2022 300th jerrandolph 576 340 267ms 19 Dec 2023 301st SirBogman 🇺🇸 574 148 602ms 20 Jan 2024 301st MeWhenI 🇻🇦 574 148 463ms 24 May 2024 303rd AlephSquirrel 574 157 114ms 4 Aug 2022 304th emgordon154 573 209 384ms 12 days ago 305th msbranicky 573 290 8ms 12 Aug 2023 306th msbranicky 573 342 268ms 31 Aug 2023 307th elgan65536 571 311 160ms 6 Jul 2024 308th AlephSquirrel 570 149 459ms 21 Jan 2024 309th Babafaba 570 158 11ms 26 days ago 310th voytxt 🇨🇿 566 175 189ms 4 May 2025 311th rucin93 🇵🇱 565 241 504ms 24 Sep 2025 312th m-tkach 🇺🇦 563 376 26ms 11 Aug 2022 313th neel11235813 560 161 1,952ms 16 Mar 2024 314th GolfingSuccess 🇬🇷 553 163 625ms 5 Oct 2022 315th GolfingSuccess 🇬🇷 552 154 905ms 20 Jan 2024 315th Babafaba 552 154 359ms 26 days ago 317th tayloia 🇬🇧 550 180 12ms 3 Nov 2023 318th KatieLG 🇬🇧 549 164 14ms 14 Sep 2024 319th RockOfStone 549 285 33ms 23 Mar 2024 320th m-tkach 🇺🇦 548 235 2ms 5 Aug 2022 First Prev 241–320 of 580 Next Last