The Calendar hole will go live in approximately 6 days. Why not try and solve it ahead of time?
Recamán 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 641st annaproxy 780 105 319ms 3 Oct 2023 642nd ovs-code 🇩🇪 779 56 994ms 25 Jan 2024 642nd emgordon154 779 56 1,023ms 18 Nov 2024 644th MarcMush 🇫🇷 779 64 343ms 6 Jul 2021 644th Shanethegamer 🇺🇸 779 64 246ms 20 Apr 2023 646th HumanEquivalentUnit 778 87 15ms 1 Dec 2023 647th Sp3000 🇦🇺 776 37 3ms 29 Apr 2021 648th syntax-rules 776 108 376ms 11 Jan 2023 649th SirBogman 🇺🇸 775 66 395ms 20 Jan 2024 650th Mabeloid 🇳🇴 775 82 1ms 22 Oct 2025 651st Mabeloid 🇳🇴 774 110 122ms 31 Oct 2025 652nd Mezzofloat 772 106 325ms 5 Sep 2023 653rd janbehrens 🇩🇪 771 53 4ms 10 May 2021 654th akshatj27 🇦🇶 771 64 8ms 11 Jan 2022 654th KatieLG 🇬🇧 771 64 9ms 8 Apr 2022 654th two-bad 🇬🇧 771 64 9ms 23 Feb 2024 654th emgordon154 771 64 9ms 15 Nov 2024 654th smclaughlin-cf 771 64 9ms 13 May 2025 654th Lv0Sys 🇵🇱 771 64 9ms 21 days ago 660th Yewzir 🇧🇪 770 80 96ms 16 May 2023 661st clockworknazo 770 84 3ms 29 Sep 2022 661st ovs-code 🇩🇪 770 84 3ms 22 Jul 2024 663rd UnderKoen 🇳🇱 770 129 3ms 20 Jan 2025 664th ovs-code 🇩🇪 770 202 13ms 31 Mar 2023 665th prplz 🇦🇺 769 70 9ms 27 Dec 2020 665th marcin7Cd 769 70 10ms 1 Jan 2021 665th stordev 769 70 17ms 26 Feb 2021 665th CodyMiner 769 70 17ms 14 Nov 2021 665th neihousaigaai 769 70 10ms 28 Jul 2022 665th 051 🇸🇬 769 70 10ms 8 Aug 2022 665th andersk 🇺🇸 769 70 11ms 25 Oct 2022 665th kevinmchung 769 70 10ms 4 Nov 2022 665th thehylian 769 70 17ms 8 Jan 2023 665th SirFireball3521 769 70 10ms 24 Jan 2023 665th Fracture17 769 70 16ms 13 Apr 2023 665th davecame 769 70 10ms 29 Sep 2023 665th wen1now 769 70 10ms 8 Nov 2023 665th logvp 769 70 16ms 15 Jan 2024 665th cros107 🇦🇺 769 70 16ms 14 Feb 2024 665th stertooy 🇧🇪 769 70 10ms 10 Jun 2024 665th fgrosshans 🇫🇷 769 70 10ms 11 Jun 2024 665th BlankSpruce 769 70 10ms 14 Sep 2024 665th klixel 🇨🇦 769 70 9ms 31 Dec 2024 665th gigaprofisi 🇺🇸 769 70 20ms 3 Mar 2025 665th robin-scragg 769 70 17ms 16 Jun 2025 665th fuzzylojik-golf 🇺🇸 769 70 10ms 28 Jun 2025 665th wuduculfre 769 70 10ms 22 Jul 2025 665th blaztoma 🇱🇹 769 70 10ms 3 Oct 2025 689th voytxt 🇨🇿 768 61 130ms 22 Aug 2024 689th DialFrost 🇸🇬 768 61 129ms 22 Aug 2024 691st ian-h-chamberlain 🇺🇸 767 111 120ms 22 Jun 2022 691st MeWhenI 🇻🇦 767 111 140ms 22 Jul 2024 693rd jared-hughes 766 53 39ms 10 Sep 2022 694th jared-hughes 765 41 34ms 25 May 2022 694th Natanaelel 🇸🇪 765 41 34ms 29 Oct 2023 696th anter69 🇭🇺 765 57 932ms 24 Feb 2023 697th neihousaigaai 765 83 1ms 7 Apr 2021 698th h3ra993huskp 🇯🇵 762 113 432ms 25 days ago 699th Shanethegamer 🇺🇸 762 182 455ms 28 Mar 2025 700th stefangimmillaro 761 85 96ms 3 Oct 2023 701st Mikey-Beep 🇬🇧 761 89 15ms 5 Sep 2023 702nd Shanethegamer 🇺🇸 761 95 11ms 28 Dec 2023 703rd CaedenHarper 🇨🇦 760 65 9ms 6 Sep 2025 704th MeWhenI 🇻🇦 759 131 5ms 26 Aug 2023 705th MeWhenI 🇻🇦 759 179 1,691ms 7 Nov 2025 706th andre-lameirinhas 🇵🇹 758 71 10ms 12 Jan 2021 706th Attero 🇸🇪 758 71 17ms 23 Jan 2021 706th ydevor 🇮🇱 758 71 16ms 18 Feb 2021 706th Indivicivet 758 71 17ms 26 Oct 2021 706th LiquidPulsar 758 71 10ms 29 Nov 2021 706th CedricGebistorf 758 71 10ms 11 Feb 2022 706th MichalMarsalek 🇨🇿 758 71 9ms 16 Mar 2022 706th Tess2662 758 71 10ms 28 Aug 2022 706th TaserTheFox 🇺🇸 758 71 26ms 25 May 2023 706th AlexanderFair 758 71 10ms 1 Jul 2023 706th quimey 758 71 10ms 28 Jul 2023 706th yourlefthandman 758 71 10ms 17 Aug 2023 706th FortuiteMan 🇫🇷 758 71 10ms 26 Aug 2023 706th PrathamMehta08 758 71 18ms 6 Dec 2023 706th jatloe 758 71 16ms 28 Jan 2024 First Prev 641–720 of 1,990 Next Last