The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Recamán in all languages 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 641st gjoacorp 🇬🇧 807 104 57ms 4 Aug 2025 642nd lynn 806 36 42ms 22 Jul 2022 642nd SirBogman 🇺🇸 806 36 43ms 12 Sep 2022 642nd primo-ppcg 🇹🇭 806 36 55ms 8 Dec 2022 642nd emgordon154 806 36 39ms 10 Sep 2024 646th qrico64 806 74 10ms 2 Feb 2021 646th bastienvoirin 🇫🇷 806 74 10ms 10 May 2021 646th mauro-1 🇮🇹 806 74 10ms 17 Aug 2021 646th petar-donchev 806 74 17ms 5 Dec 2021 646th knutae 🇳🇴 806 74 10ms 6 Dec 2021 646th clementblaudeau 806 74 16ms 27 Jan 2022 646th j-Ewan 806 74 17ms 1 Mar 2022 646th guilhem-roy 🇫🇷 806 74 16ms 3 Mar 2022 646th Irratix 🇳🇱 806 74 10ms 26 Apr 2022 646th Trunksistor 🇫🇷 806 74 16ms 19 May 2022 646th nstearns96 🇬🇧 806 74 18ms 12 Dec 2022 646th vishwathg 806 74 11ms 7 Apr 2023 646th dranjohn 806 74 10ms 11 Sep 2023 646th FlorianCassayre 🇫🇷 806 74 17ms 28 Sep 2023 646th rollershutter 806 74 17ms 23 Oct 2023 646th starfihs 806 74 25ms 5 Aug 2024 646th BREMAUCY 🇫🇷 806 74 10ms 12 Aug 2025 646th wobblybits 806 74 10ms 23 Aug 2025 646th 123mjb 806 74 17ms 23 Sep 2025 646th michelebastione 🇮🇹 806 74 9ms 3 Nov 2025 666th albanian-laundromat 806 78 2ms 20 Oct 2025 667th edsrzf 🇳🇿 806 90 11ms 21 Dec 2024 667th kg583 🇺🇸 806 90 18ms 2 Aug 2025 669th cure-honey 🇯🇵 806 128 290ms 4 Jul 2021 669th jerrandolph 806 128 266ms 24 Sep 2025 671st DialFrost 🇸🇬 805 85 15ms 25 Feb 2025 672nd stefangimmillaro 805 106 121ms 19 May 2024 672nd edsrzf 🇳🇿 805 106 123ms 16 Nov 2024 672nd nullie 805 106 128ms 28 Dec 2024 675th emgordon154 804 85 4,209ms 16 Nov 2024 676th Shanethegamer 🇺🇸 804 98 7ms 4 Oct 2024 677th Matgc04 804 102 326ms 3 Jun 2023 678th CaedenHarper 🇨🇦 803 56 732ms 30 Sep 2025 678th albanian-laundromat 803 56 700ms 4 Nov 2025 680th LiquidPulsar 803 77 116ms 24 Jan 2023 681st Shanethegamer 🇺🇸 802 86 125ms 2 Mar 2023 682nd MeWhenI 🇻🇦 801 84 38ms 14 Jun 2022 683rd Waffle3z 800 51 34ms 7 Jan 2021 683rd emgordon154 800 51 48ms 15 Nov 2024 685th ovs-code 🇩🇪 800 60 132ms 17 Nov 2024 686th edsrzf 🇳🇿 800 92 3ms 12 Nov 2025 687th janbehrens 🇩🇪 800 129 287ms 1 Jul 2021 688th dcgjb 799 53 257ms 30 Apr 2024 689th florton 798 62 9ms 29 Jan 2022 689th fitzdotlol 🇺🇸 798 62 8ms 29 Mar 2022 689th typeswitch-dev 🇵🇹 798 62 9ms 1 Aug 2023 692nd emplv 🇱🇻 798 115 24ms 30 Aug 2023 692nd DialFrost 🇸🇬 798 115 25ms 24 Dec 2024 694th thebuilder6 🇺🇸 797 81 2ms 23 Oct 2021 695th frankgraziano 796 205 12ms 1 Nov 2025 696th zbreit 🇺🇸 795 75 10ms 20 Aug 2021 696th RYNO8 795 75 10ms 26 Aug 2021 696th itsjustfreekie 795 75 10ms 22 Sep 2021 696th amollberg 🇸🇪 795 75 11ms 27 Jan 2022 696th NerdyMcNerd42 795 75 10ms 13 Aug 2022 696th MaxElf999 795 75 16ms 3 Oct 2022 696th LeeCamp 795 75 10ms 13 Jan 2023 696th hiichbindermax 795 75 11ms 17 Feb 2023 696th mbittner20 795 75 10ms 27 May 2023 696th ImpressedByRocks 795 75 17ms 17 May 2024 696th Bulmenisaurus 795 75 10ms 4 Nov 2024 696th bltnppcnt 795 75 16ms 5 Jan 2025 696th 40fied4t 795 75 10ms 22 May 2025 696th Lv0Sys 🇵🇱 795 75 10ms 14 days ago 696th Andrey2001 795 75 16ms 9 days ago 711th weliveinhell 🇭🇹 794 130 277ms 26 Sep 2023 712th Irratix 🇳🇱 793 78 2ms 15 Jan 2021 712th MeWhenI 🇻🇦 793 78 97ms 17 Nov 2022 714th Liibe 792 109 433ms 2 Oct 2025 715th MeWhenI 🇻🇦 791 59 5ms 29 May 2023 716th stefangimmillaro 791 83 37ms 6 May 2023 717th argusdusty 🇺🇸 790 108 120ms 27 Dec 2020 718th Mabeloid 🇳🇴 788 82 1ms 22 Oct 2025 719th MeWhenI 🇻🇦 788 113 28ms 7 Jun 2023 720th voytxt 🇨🇿 787 61 130ms 22 Aug 2024 First Prev 641–720 of 2,002 Next Last