The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
12 Days of Christmas in Rust 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 🇺🇸 1,000 474 194ms 22 May 2025 2nd acotis 998 475 273ms 19 May 2025 3rd lynn 975 486 259ms 28 Mar 2022 4th kumavale 963 492 194ms 13 Nov 2025 5th andersk 🇺🇸 960 494 201ms 22 Oct 2022 6th primo-ppcg 🇹🇭 956 496 190ms 14 Jan 2022 7th detrumi 🇳🇱 954 497 164ms 12 Sep 2020 7th elgan65536 954 497 153ms 19 Oct 2023 9th prplz 🇦🇺 950 499 206ms 20 Oct 2020 10th stefangimmillaro 944 502 188ms 18 May 2025 11th SubsTheTechnomancer 942 503 185ms 3 Mar 2023 11th snoozingnewt 🇨🇦 942 503 182ms 23 Sep 2023 11th neel11235813 942 503 183ms 26 Mar 2024 11th sean-niemann 🇺🇸 942 503 201ms 6 Jun 2025 15th Skepfyr 939 505 160ms 4 Jan 2020 15th BlankSpruce 939 505 130ms 25 Nov 2024 17th timvermeulen 928 511 158ms 4 Jan 2020 18th btjones0 926 512 157ms 26 Dec 2020 19th scpchicken 🇵🇼 922 514 236ms 19 May 2022 20th CarsonChr 🇺🇸 920 515 258ms 24 Dec 2023 20th tylerlaprade 920 515 166ms 13 Jun 2025 22nd makononov 910 521 167ms 28 Feb 2025 22nd KasperKivimaeki 🇫🇮 910 521 165ms 7 Oct 2025 24th MeWhenI 🇻🇦 908 522 186ms 13 Nov 2022 24th vidanm 🇫🇷 908 522 214ms 11 Jun 2025 26th GinjaNinja32 906 523 189ms 16 Apr 2020 27th Shanethegamer 🇺🇸 903 525 179ms 11 Dec 2022 28th msbranicky 901 526 184ms 6 Oct 2023 28th dokutan 901 526 117ms 17 Oct 2024 30th scottpenn 898 528 120ms 4 Jan 2020 31st klixel 🇨🇦 896 529 152ms 4 Jun 2023 32nd yamhab 🇨🇦 894 530 139ms 13 Sep 2023 33rd DaCuteRaccoon 889 533 156ms 2 Oct 2022 33rd wackbyte 889 533 122ms 7 Nov 2023 33rd blaztoma 🇱🇹 889 533 162ms 17 Aug 2025 36th 09cf 888 534 127ms 4 Oct 2023 37th ian-h-chamberlain 🇺🇸 886 535 164ms 26 Jul 2022 38th dbdr 884 536 121ms 5 Jan 2020 38th deltaphc 884 536 126ms 7 Jan 2020 40th deerawj 881 538 124ms 7 Apr 2024 41st TheWhoAreYouPerson 878 540 146ms 4 Jan 2020 41st CatsAreFluffy 878 540 125ms 25 Nov 2024 43rd NoUselessTech 875 542 127ms 20 Dec 2022 43rd aumptl 🇦🇺 875 542 133ms 13 Nov 2024 43rd elituf 875 542 119ms 4 Jan 2025 43rd TannerJ07 🇺🇸 875 542 128ms 6 Apr 2025 47th Creative0708 🇨🇦 873 543 131ms 16 Dec 2023 48th gdyr 871 544 220ms 3 Mar 2023 49th fraserli 🇦🇺 868 546 131ms 2 Jan 2022 50th okaponta 863 549 128ms 13 Jan 2024 51st mattiapenati 860 551 163ms 28 Nov 2020 51st mad4j 🇮🇹 860 551 122ms 3 Jul 2021 53rd aDwarfNamedUrist 859 552 127ms 21 Dec 2022 54th wlciii 🇺🇸 853 556 134ms 17 Nov 2021 55th germania 849 558 121ms 6 Jan 2020 56th elliottc 846 560 127ms 4 Jan 2020 57th acostama 845 561 130ms 24 Mar 2022 57th thomas-samoht 845 561 124ms 13 Jul 2024 59th pickerj 837 566 145ms 7 Aug 2024 60th jcdyer 829 572 130ms 4 Dec 2020 61st Aurel300 🇨🇭 821 577 143ms 20 Jun 2024 62nd isaacg1 820 578 225ms 3 Jan 2020 62nd Spadi0 820 578 197ms 2 Jan 2022 64th hueblu 819 579 124ms 15 Dec 2022 65th jsvizcaino 775 612 124ms 13 Dec 2022 66th Xzyaihni 772 614 124ms 3 Jan 2023 67th wuzekai518 758 625 153ms 30 Jul 2024 68th cheevu-RS 744 637 127ms 10 Mar 2020 69th Nebulavenus 715 663 122ms 4 Jan 2020 70th Ernest1338 683 694 143ms 2 Sep 2024 71st BuzzZ80 639 742 195ms 7 Apr 2023 72nd tsakath 598 793 128ms 18 Apr 2020 73rd Domicnt 522 908 128ms 9 Jun 2020 74th antonymerle 491 965 129ms 16 May 2020 75th J00LZ 343 1,381 142ms 5 May 2022 76th Bthxtly 322 1,471 127ms 6 Nov 2025 77th KatieLG 🇬🇧 227 2,084 224ms 18 days ago 78th olivermrose 🇺🇸 198 2,389 113ms 11 Oct 2021 78th jhpaques 🇫🇷 198 2,389 142ms 24 Oct 2022 78th HumanoidCPU 198 2,389 107ms 4 May 2024 1–80 of 90 Next Last
