The Calendar hole will go live in approximately 13 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 401st Schmitt-Very-Cool 374 364 463ms 3 Oct 2025 402nd MeWhenI 🇻🇦 373 308 2,596ms 22 Nov 2023 403rd TheZwierzLF 🇵🇱 371 243 43ms 23 May 2025 404th adamnielson42 🇺🇸 368 245 26ms 22 May 2023 405th Szum123321 🇵🇱 367 351 2ms 9 Dec 2023 406th TheZwierzLF 🇵🇱 365 233 599ms 10 days ago 407th msbranicky 362 249 15ms 9 Aug 2023 407th StefanHabel 🇨🇦 362 249 491ms 2 Sep 2023 409th jacobly0 🇺🇸 361 532 2,198ms 22 Apr 2024 410th dokutan 357 209 734ms 7 Apr 2024 411th zakariamouhid 354 280 15ms 2 Jun 2023 412th andrewjc2000 353 255 13ms 30 Jul 2025 413th CaedenHarper 🇨🇦 349 461 406ms 21 Oct 2025 414th RYNO8 341 264 16ms 16 Aug 2022 415th msbranicky 340 250 783ms 16 Jan 2024 416th mathisfun271 340 265 15ms 5 Mar 2024 417th msbranicky 339 220 782ms 15 Jan 2024 418th commandblockguy 🇺🇸 335 254 657ms 1 Sep 2025 419th logvp 330 273 12ms 8 Jan 2024 420th dillon-duncando 329 392 3ms 19 Oct 2022 421st Pyroan 325 277 58ms 13 Mar 2025 422nd LeeCamp 323 279 33ms 13 Jan 2023 423rd TheZwierzLF 🇵🇱 321 203 70ms 3 hours ago 424th MaxElf999 318 283 31ms 6 Apr 2025 425th uttumuttu 🇫🇮 318 311 15ms 31 Aug 2022 426th gigaprofisi 🇺🇸 317 312 11ms 16 Jul 2025 427th guilhem-roy 🇫🇷 316 285 86ms 30 Aug 2022 428th janbehrens 🇩🇪 314 203 16ms 19 Nov 2022 429th celiendonze 🇨🇭 312 289 68ms 28 Apr 2023 430th stefangimmillaro 311 336 126ms 13 Oct 2022 431st CaedenHarper 🇨🇦 306 311 1,062ms 27 Sep 2025 432nd OllieBoyne 🇬🇧 305 295 11ms 5 Aug 2022 432nd TobyBoyne 🇬🇧 305 295 11ms 5 Aug 2022 434th postie77 304 529 391ms 14 Aug 2024 435th bac0id 302 451 517ms 26 Sep 2023 436th WillowWispy 296 304 64ms 22 Mar 2025 437th Natanaelel 🇸🇪 293 209 996ms 8 Feb 2023 438th janAkali 🇷🇺 292 404 376ms 10 Jun 2025 439th jgbaldwinbrown 291 442 5ms 31 Aug 2022 440th KingSkyrock 🇺🇸 284 348 15ms 23 Dec 2022 441st Andre3582 282 319 546ms 29 Oct 2022 442nd ThijsLuttikhuis 281 321 3,424ms 7 Apr 2024 443rd CaedenHarper 🇨🇦 281 485 483ms 9 Oct 2025 444th adoxography 280 322 18ms 25 Mar 2023 445th martinnorling 🇸🇪 278 324 11ms 19 Aug 2022 446th SirFireball3521 271 226 534ms 19 Jul 2024 447th CaedenHarper 🇨🇦 270 334 33ms 27 Sep 2025 448th didion0 🇺🇸 265 373 21ms 5 Aug 2022 449th Bmrl7 263 343 18ms 3 Mar 2024 450th CaedenHarper 🇨🇦 262 324 1,079ms 22 Sep 2025 451st fgrosshans 🇫🇷 262 344 49ms 24 Sep 2023 452nd Lv0Sys 🇵🇱 261 379 11ms 11 days ago 453rd Jacob385 259 526 638ms 19 Mar 2024 454th dillon-duncando 256 352 176ms 12 Oct 2022 455th CaedenHarper 🇨🇦 253 392 10ms 29 Aug 2025 456th alemelis 252 357 462ms 19 Sep 2024 457th Flekay 🇩🇪 250 361 445ms 11 Jul 2025 458th madex 🇩🇪 247 719 305ms 13 Aug 2025 459th glesnick 242 372 246ms 17 Aug 2022 460th JGDoerrer 240 741 235ms 12 Aug 2022 461st inverseLorentz 🇦🇺 236 381 10ms 22 Feb 2024 462nd za3k 234 385 25ms 12 Oct 2022 463rd FortuiteMan 🇫🇷 233 386 17ms 29 Aug 2023 464th DialFrost 🇸🇬 226 399 31ms 14 Apr 2025 465th yzhs 🇩🇪 223 404 13ms 23 Jun 2023 466th Lv0Sys 🇵🇱 222 405 18ms 11 days ago 467th adoxography 220 296 46ms 2 Mar 2024 468th eiburns 216 417 62ms 17 Oct 2023 469th scpchicken 🇵🇼 212 838 280ms 29 Dec 2022 470th two-bad 🇬🇧 209 473 11ms 9 Oct 2024 471st mbittner20 208 434 12ms 19 Aug 2023 472nd twocatsinatrenchcoat 207 436 1,016ms 9 Aug 2022 473rd jameswmccarty 199 452 39ms 4 Feb 2025 474th madex 🇩🇪 199 453 17ms 13 Aug 2025 475th madex 🇩🇪 199 498 10ms 16 Aug 2025 476th CatsAreFluffy 197 431 1,215ms 15 Jan 2024 477th amollberg 🇸🇪 195 463 157ms 4 Jan 2024 478th yoshykai 193 705 431ms 2 Jun 2023 479th madex 🇩🇪 159 411 52ms 13 Aug 2025 480th JOrE20 🇺🇸 154 642 12ms 16 days ago First Prev 401–480 of 579 Next Last