The Calendar hole will go live in approximately 2 days. Why not try and solve it ahead of time?
Reverse Polish Notation in Python in bytes. 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 Bytes Time Submitted 1st JayXon 🇺🇸 1,000 109 63ms 8 Apr 2022 1st khvdm 1,000 109 59ms 13 Nov 2025 3rd Lydxn 🇨🇦 991 110 35ms 13 Feb 2022 3rd btnlq 991 110 67ms 13 Feb 2022 3rd nwellnhof 🇩🇪 991 110 475ms 24 May 2022 3rd m-tkach 🇺🇦 991 110 34ms 5 Oct 2022 3rd xsot 🇸🇬 991 110 279ms 13 Mar 2023 3rd AlephSquirrel 991 110 264ms 29 May 2023 3rd pardouin 🇫🇷 991 110 34ms 3 Nov 2023 3rd kg583 🇺🇸 991 110 245ms 8 May 2024 3rd 5cw 🇺🇸 991 110 259ms 9 May 2024 3rd Steffan153 🇫🇮 991 110 33ms 27 Aug 2024 3rd Seek64 🇩🇪 991 110 387ms 13 Sep 2024 3rd ovs-code 🇩🇪 991 110 451ms 11 Feb 2025 3rd sean-niemann 🇺🇸 991 110 33ms 6 Jun 2025 3rd Mukundan314 991 110 93ms 3 Jul 2025 3rd fuzzylojik-golf 🇺🇸 991 110 294ms 24 Jul 2025 18th GrayJoKing 🇦🇺 982 111 299ms 6 Aug 2023 18th orthoplex 🇨🇽 982 111 33ms 23 Jun 2024 20th MeWhenI 🇻🇦 973 112 209ms 22 May 2024 21st xnor-gate 965 113 35ms 14 Feb 2022 22nd lifthrasiir 🇰🇷 956 114 37ms 22 Nov 2024 23rd lynn 948 115 16ms 12 Feb 2022 23rd GolfingSuccess 🇬🇷 948 115 15ms 12 Feb 2022 23rd hallvabo 🇳🇴 948 115 33ms 14 Feb 2022 23rd Kacarott 🇦🇺 948 115 559ms 4 Feb 2025 27th thehylian 940 116 15ms 14 Jan 2023 27th Just4FunCoder 940 116 16ms 26 Mar 2023 27th zacjl 940 116 16ms 20 Apr 2023 27th emgordon154 940 116 40ms 29 Sep 2025 31st betaveros 932 117 16ms 31 Dec 2022 31st DayDun 🇸🇪 932 117 21ms 22 Jan 2023 31st b-illy 🇬🇧 932 117 15ms 24 Aug 2024 31st plcc0 932 117 15ms 19 Feb 2025 31st KasperKivimaeki 🇫🇮 932 117 14ms 1 Jul 2025 31st bzijlema 🇳🇱 932 117 16ms 12 Nov 2025 31st snoozingnewt 🇨🇦 932 117 15ms 24 days ago 38th bizy-coder 924 118 38ms 6 Aug 2023 38th Rubiksmath 924 118 40ms 7 Aug 2023 38th StefanHabel 🇨🇦 924 118 15ms 4 Sep 2023 38th anter69 🇭🇺 924 118 155ms 2 Apr 2024 42nd Frowny 916 119 179ms 13 Feb 2022 42nd prplz 🇦🇺 916 119 17ms 13 Feb 2022 42nd ZakkkkAttackkkk 🇵🇭 916 119 40ms 14 Feb 2022 42nd bricknellj 916 119 20ms 14 Feb 2023 42nd edsrzf 🇳🇿 916 119 22ms 4 Oct 2025 42nd Natanaelel 🇸🇪 916 119 16ms 13 Nov 2025 48th TobyBoyne 🇬🇧 908 120 16ms 18 Feb 2022 48th OllieBoyne 🇬🇧 908 120 15ms 18 Feb 2022 48th petroselo 908 120 190ms 12 Apr 2022 48th annaproxy 908 120 12ms 14 Aug 2022 48th inventshah 908 120 15ms 15 Nov 2022 48th CaedenHarper 🇨🇦 908 120 17ms 27 Dec 2024 48th Artemis21 🇬🇧 908 120 18ms 6 Jan 2025 55th primo-ppcg 🇹🇭 901 121 20ms 4 Mar 2022 55th EnTerr 901 121 22ms 8 Sep 2024 55th Bulmenisaurus 901 121 12ms 3 Oct 2025 55th ryyyn 🇺🇸 901 121 16ms 28 Oct 2025 55th CornerMercury 🇬🇧 901 121 16ms 24 hours ago 60th Shanethegamer 🇺🇸 893 122 16ms 12 Feb 2022 60th ahmetdemirag 🇨🇾 893 122 14ms 15 Jul 2024 60th Lv0Sys 🇵🇱 893 122 23ms 23 days ago 63rd jared-hughes 886 123 16ms 8 Sep 2022 63rd quimey 886 123 17ms 4 Jul 2023 63rd htareque 886 123 11ms 17 Oct 2023 66th btjones0 879 124 16ms 25 Feb 2022 66th SirBogman 🇺🇸 879 124 16ms 7 May 2022 66th commandblockguy 🇺🇸 879 124 16ms 23 Mar 2025 69th RYNO8 872 125 16ms 16 Aug 2022 69th duckyluuk 🇳🇱 872 125 41ms 23 Feb 2024 71st dzshn 865 126 16ms 15 Aug 2022 71st stefangimmillaro 865 126 15ms 10 Nov 2023 71st fgrosshans 🇫🇷 865 126 12ms 17 Jul 2024 71st NickTheEASDude 🇺🇸 865 126 18ms 21 Aug 2024 71st Pyroan 865 126 16ms 13 Mar 2025 76th MaxElf999 858 127 16ms 10 Nov 2022 76th DrakeSeteraO 858 127 24ms 28 Oct 2025 76th blaztoma 🇱🇹 858 127 16ms 4 days ago 79th TFeld00 🇩🇰 852 128 112ms 22 Apr 2022 79th fourth-bit 852 128 15ms 18 Nov 2022 1–80 of 268 Next Last
