The Calendar hole will go live in approximately 6 mins. Why not try and solve it ahead of time?
Rijndael S-box 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 ArkScript 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 ArkScript 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 717th dokutan 241 779 8ms 18 Oct 2024 717th CaedenHarper 🇨🇦 241 779 8ms 22 Jan 2025 723rd Shanethegamer 🇺🇸 241 795 109ms 1 Sep 2023 723rd KatieLG 🇬🇧 241 795 114ms 2 Sep 2023 723rd KatieLG-Transpiler 🇬🇧 241 795 109ms 2 Sep 2023 723rd msbranicky 241 795 111ms 11 Sep 2023 723rd HumanoidCPU 241 795 104ms 16 Apr 2024 723rd Mabeloid 🇳🇴 241 795 123ms 21 Sep 2024 723rd CaedenHarper 🇨🇦 241 795 109ms 21 Jan 2025 730th msbranicky 240 596 1ms 10 Oct 2023 731st dokutan 240 695 4ms 26 Mar 2025 732nd snoozingnewt 🇨🇦 240 798 105ms 4 Sep 2023 733rd MeWhenI 🇻🇦 239 800 109ms 1 Sep 2023 734th thisishowmymindworks 🇳🇴 237 557 10ms 15 Jun 2024 734th voytxt 🇨🇿 237 557 9ms 7 Aug 2024 736th MeWhenI 🇻🇦 237 776 5ms 1 Sep 2023 736th Shanethegamer 🇺🇸 237 776 5ms 1 Sep 2023 736th KatieLG 🇬🇧 237 776 5ms 2 Sep 2023 736th KatieLG-Transpiler 🇬🇧 237 776 5ms 2 Sep 2023 736th scpchicken 🇵🇼 237 776 5ms 14 Nov 2023 736th HumanoidCPU 237 776 5ms 4 May 2024 736th dokutan 237 776 5ms 24 Jun 2024 736th Mabeloid 🇳🇴 237 776 5ms 21 Sep 2024 736th CaedenHarper 🇨🇦 237 776 6ms 20 Jan 2025 745th Jacob385 236 2,150 5ms 4 Aug 2024 746th snoozingnewt 🇨🇦 235 781 5ms 5 Sep 2023 747th KatieLG 🇬🇧 235 797 8ms 2 Sep 2023 747th KatieLG-Transpiler 🇬🇧 235 797 8ms 2 Sep 2023 749th coreynash 234 563 11ms 16 Feb 2024 750th two-bad 🇬🇧 233 565 10ms 25 Feb 2024 751st bac0id 233 587 356ms 9 Jan 2025 752nd cbrt-x 233 821 109ms 9 Oct 2023 753rd olleicua 🇺🇸 232 460 41ms 11 Apr 2024 754th ArmaanAS 232 567 9ms 23 Feb 2025 755th msbranicky 232 678 1,676ms 17 Sep 2025 756th dokutan 231 570 11ms 13 Mar 2025 757th olleicua 🇺🇸 230 572 9ms 13 Feb 2024 758th scpchicken 🇵🇼 229 454 4ms 1 Nov 2023 759th alexsave 228 577 10ms 4 Nov 2025 760th rgthree 228 579 10ms 5 Sep 2023 761st msbranicky 228 635 279ms 1 Sep 2023 762nd BREMAUCY 🇫🇷 227 329 2ms 1 Nov 2025 763rd FortuiteMan 🇫🇷 225 231 54ms 3 Dec 2025 764th dokutan 225 569 2ms 6 Jun 2024 765th voytxt 🇨🇿 225 609 369ms 4 Nov 2024 766th KatieLG-Transpiler 🇬🇧 225 2,253 5ms 2 Sep 2023 767th KatieLG 🇬🇧 224 2,269 5ms 28 Sep 2024 768th alphafalfa 223 572 14ms 1 Aug 2025 769th iczelia 🇩🇪 223 591 10ms 8 Nov 2025 770th msbranicky 222 617 351ms 8 Sep 2023 771st dokutan 221 584 801ms 21 days ago 772nd HumanoidCPU 220 571 425ms 12 Nov 2025 773rd gifti258 220 585 189ms 13 Sep 2023 774th msbranicky 220 594 83ms 1 Sep 2023 775th moustave 219 559 9ms 26 Mar 2025 776th msbranicky 219 601 11ms 8 Sep 2023 777th dokutan 219 624 324ms 5 Jun 2024 778th Ripick 218 343 2ms 22 Oct 2025 779th dokutan 217 564 194ms 18 Mar 2025 780th Shanethegamer 🇺🇸 217 777 41ms 22 Aug 2024 780th KatieLG 🇬🇧 217 777 40ms 22 Aug 2024 780th dokutan 217 777 41ms 24 Aug 2024 780th HumanoidCPU 217 777 39ms 25 Aug 2024 780th Mabeloid 🇳🇴 217 777 41ms 21 Sep 2024 780th error256 217 777 42ms 10 Jan 2025 780th CaedenHarper 🇨🇦 217 777 39ms 22 Jan 2025 780th gigaprofisi 🇺🇸 217 777 40ms 5 Nov 2025 788th TheZwierzLF 🇵🇱 216 346 2ms 25 Nov 2025 789th msbranicky 216 580 389ms 16 Jan 2024 790th msbranicky 216 678 393ms 8 Sep 2023 791st Shanethegamer 🇺🇸 215 775 3ms 1 Sep 2023 791st CaedenHarper 🇨🇦 215 775 3ms 22 Jan 2025 793rd MeWhenI 🇻🇦 215 776 3ms 1 Sep 2023 793rd KatieLG-Transpiler 🇬🇧 215 776 4ms 2 Sep 2023 793rd KatieLG 🇬🇧 215 776 4ms 28 Sep 2024 796th CommandLeo 🇮🇹 214 570 10ms 1 Dec 2025 797th msbranicky 214 571 185ms 15 Jan 2024 798th HumanoidCPU 214 572 11ms 12 Nov 2025 799th MichalMarsalek 🇨🇿 211 570 124ms 1 Sep 2023 800th msbranicky 211 580 11ms 1 Sep 2023 First Prev 721–800 of 1,375 Next Last