The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Jacobi Symbol in Python 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 81st YAJUE114514 542 155 10ms 15 Aug 2025 82nd CedricGebistorf 535 157 10ms 5 May 2023 83rd Just4FunCoder 532 158 17ms 26 Mar 2023 84th guilhem-roy 🇫🇷 528 159 17ms 9 May 2022 84th OllieBoyne 🇬🇧 528 159 11ms 13 May 2022 84th TobyBoyne 🇬🇧 528 159 10ms 13 May 2022 87th nstearns96 🇬🇧 525 160 10ms 15 Dec 2022 87th ahmetdemirag 🇨🇾 525 160 16ms 6 Mar 2025 89th rak1507 🇬🇧 522 161 16ms 8 Feb 2023 89th StefanHabel 🇨🇦 522 161 17ms 26 Mar 2023 89th plcc0 522 161 9ms 4 May 2025 92nd CLOStrophobic 🇮🇹 519 162 16ms 23 Jan 2025 92nd andrewjc2000 519 162 16ms 18 Aug 2025 94th RYNO8 509 165 17ms 16 Aug 2022 94th inverseLorentz 🇦🇺 509 165 12ms 24 Mar 2024 96th BREMAUCY 🇫🇷 506 166 16ms 30 May 2023 97th RDShah 503 167 12ms 22 May 2022 98th aksyristos 500 168 16ms 25 Jan 2023 99th jtaxen 497 169 17ms 1 Apr 2024 99th Flekay 🇩🇪 497 169 16ms 10 Jul 2025 99th Lv0Sys 🇵🇱 497 169 10ms 11 days ago 99th Andrey2001 497 169 18ms 28 hours ago 103rd Alex-x90 🇺🇸 494 170 18ms 15 Dec 2023 103rd TheZwierzLF 🇵🇱 494 170 18ms 22 May 2025 105th SniperSmiley 🇺🇸 488 172 17ms 29 Jun 2022 105th adoxography 488 172 18ms 8 Aug 2022 107th neihousaigaai 486 173 12ms 17 May 2022 108th Bonjour27891 🇻🇳 483 174 17ms 5 Jul 2022 109th croc54 480 175 17ms 8 Jan 2025 110th MichalMarsalek 🇨🇿 477 176 10ms 20 May 2022 111th fgrosshans 🇫🇷 475 177 10ms 3 Nov 2022 112th MaxElf999 472 178 18ms 27 Sep 2022 112th za3k 472 178 10ms 14 Dec 2022 114th Eilonlif 🇮🇱 464 181 10ms 15 Feb 2024 115th mbittner20 462 182 11ms 27 May 2023 115th rollershutter 462 182 10ms 4 Jul 2024 117th sleepyStick 457 184 16ms 15 Jul 2022 118th SirFireball3521 454 185 17ms 6 Mar 2023 118th CutSandstone 454 185 16ms 4 Jul 2024 120th nullie 452 186 17ms 8 Jun 2022 121st scpchicken 🇵🇼 449 187 16ms 4 Feb 2023 122nd martinnorling 🇸🇪 447 188 16ms 10 May 2022 122nd bac0id 447 188 16ms 5 Jul 2024 124th AstroOrbis 444 189 18ms 12 Jul 2025 125th hiichbindermax 442 190 18ms 8 Feb 2023 126th jhpaques 🇫🇷 440 191 17ms 26 Jul 2022 126th hellwue 440 191 16ms 8 Feb 2023 128th madeforlosers 438 192 18ms 13 Nov 2025 129th msbranicky 435 193 17ms 10 Aug 2023 130th Pena86 431 195 18ms 14 Sep 2022 131st voytxt 🇨🇿 426 197 17ms 1 Mar 2023 132nd 0dyse 420 200 16ms 13 Sep 2025 133rd adamnielson42 🇺🇸 410 205 10ms 14 Apr 2023 134th alexeldridge 408 206 16ms 8 Aug 2024 135th eiburns 406 207 16ms 26 Oct 2023 136th yuchuehw 404 208 17ms 25 Feb 2024 137th dillon-duncando 382 220 11ms 3 Oct 2022 138th NoneTheFewer 351 239 10ms 18 May 2024 139th AtengChen 329 255 11ms 24 Aug 2024 140th mathisfun271 324 259 12ms 4 Feb 2024 141st ComputerKWasTaken 🇺🇸 322 261 16ms 9 Jun 2024 142nd Bananapants22 309 272 10ms 8 Sep 2022 143rd Zhenyu-Bo 298 282 11ms 31 Jul 2025 144th dylanjones92 290 290 10ms 26 Jan 2024 145th madex 🇩🇪 289 291 10ms 8 May 2024 146th gsprochette 275 306 16ms 21 Aug 2025 147th cros107 🇦🇺 270 311 10ms 9 Sep 2025 148th shibacho 🇯🇵 241 349 17ms 16 Nov 2022 149th 104210 216 388 10ms 26 Aug 2022 150th KatieLG-Transpiler 🇬🇧 204 412 10ms 23 Jun 2022 151st Upload-and-View 🇺🇦 200 421 11ms 25 Jul 2025 152nd AidanWalter 118 709 10ms 3 Jan 2025 First Prev 81–152 of 152
