The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 7 days. Why not try and solve them ahead of time?
Deltas between diamonds and silvers in Pascal in chars. Achievements Cheevos Holes Languages Medals Miscellaneous Overall 💎 Diamond Deltas Most Tied 🥇 Golds Oldest 💎 Diamonds Oldest 🦄 Unicorns 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Multitap Input 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 All Languages ><> ALGOL 68 ArkScript 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 All Bytes Chars Overall 💎 Diamond Deltas Most Tied 🥇 Golds Oldest 💎 Diamonds Oldest 🦄 Unicorns Scoring All Bytes Chars Language All ><> ALGOL 68 ArkScript 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 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Multitap Input 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 # Golfer Hole Total 1st ericlangedijk 🇸🇮 Star Wars Opening Crawl 4,066 2nd m-tkach 🇺🇦 CSS Colors 845 3rd edsrzf 🇳🇿 Calendar 709 4th edsrzf 🇳🇿 SI Units 535 5th MostParsingVex Sudoku 460 6th JayXon 🇺🇸 Morse Encoder 265 7th albanian-laundromat Minesweeper 239 8th m-tkach 🇺🇦 Emojify 237 9th m-tkach 🇺🇦 γ 202 10th m-tkach 🇺🇦 Polyominoes 186 11th MeWhenI 🇻🇦 QR Decoder 95 12th m-tkach 🇺🇦 DFA Simulator 91 13th primo-ppcg 🇹🇭 brainfuck 87 14th MostParsingVex Sudoku (Fill-in) 84 15th primo-ppcg 🇹🇭 Ten-pin Bowling 79 16th m-tkach 🇺🇦 Medal Tally 68 17th primo-ppcg 🇹🇭 Jacobi Symbol 65 17th primo-ppcg 🇹🇭 ln 2 65 19th primo-ppcg 🇹🇭 Morse Decoder 64 19th primo-ppcg 🇹🇭 Kolakoski Constant 64 21st albanian-laundromat Star Wars GPT 63 22nd primo-ppcg 🇹🇭 φ 61 23rd AdrienHache 🇫🇷 Rijndael S-box 59 23rd primo-ppcg 🇹🇭 √2 59 25th m-tkach 🇺🇦 Vampire Numbers 54 26th m-tkach 🇺🇦 Cubes 51 26th dokutan Hilbert Curve 51 28th primo-ppcg 🇹🇭 Catalan’s Constant 50 29th primo-ppcg 🇹🇭 Lucky Tickets 47 30th primo-ppcg 🇹🇭 π 43 30th primo-ppcg 🇹🇭 τ 43 32nd m-tkach 🇺🇦 Ascending Primes 40 32nd albanian-laundromat Topological Sort 40 34th m-tkach 🇺🇦 Maze 37 35th m-tkach 🇺🇦 Levenshtein Distance 34 36th Lydxn 🇨🇦 Gijswijt’s Sequence 32 37th albanian-laundromat Repeating Decimals 29 38th primo-ppcg 🇹🇭 Spelling Numbers 27 38th albanian-laundromat Tic-tac-toe 27 40th MeWhenI 🇻🇦 Poker 24 41st Mukundan314 Emirp Numbers 23 42nd ovs-code 🇩🇪 Look and Say 22 42nd Mukundan314 United States 22 44th JayXon 🇺🇸 12 Days of Christmas 21 45th edsrzf 🇳🇿 Hexdump 20 46th primo-ppcg 🇹🇭 99 Bottles of Beer 19 47th m-tkach 🇺🇦 Leyland Numbers 16 47th rucin93 🇵🇱 24 Game 16 47th JayXon 🇺🇸 Ordinal Numbers 16 47th JayXon 🇺🇸 Tongue-twisters 16 51st snoozingnewt 🇨🇦 Intersection 15 52nd edsrzf 🇳🇿 Set 14 53rd albanian-laundromat Musical Chords 13 53rd sean-niemann 🇺🇸 Billiards 13 53rd edsrzf 🇳🇿 Trinomial Triangle 13 53rd emplv 🇱🇻 Number Spiral 13 57th Lydxn 🇨🇦 Seven Segment 12 57th albanian-laundromat Multitap Input 12 57th m-tkach 🇺🇦 ASCII Table 12 57th Lydxn 🇨🇦 Diamonds 12 61st primo-ppcg 🇹🇭 Rule 110 11 62nd m-tkach 🇺🇦 ISBN 10 62nd albanian-laundromat Factorial Factorisation 10 62nd pardouin 🇫🇷 Partition Numbers 10 65th albanian-laundromat Reversi 9 65th primo-ppcg 🇹🇭 λ 9 67th edsrzf 🇳🇿 Continued Fractions 8 67th m-tkach 🇺🇦 Forsyth–Edwards Notation 8 67th m-tkach 🇺🇦 Van Eck Sequence 8 70th edsrzf 🇳🇿 Proximity Grid 7 71st primo-ppcg 🇹🇭 Fizz Buzz 6 71st edsrzf 🇳🇿 Game of Life 6 71st primo-ppcg 🇹🇭 Sierpiński Triangle 6 71st m-tkach 🇺🇦 Zodiac Signs 6 71st Lydxn 🇨🇦 Christmas Trees 6 76th primo-ppcg 🇹🇭 Smith Numbers 5 76th m-tkach 🇺🇦 PalindromemordnilaP 5 76th DialFrost 🇸🇬 Emirp Numbers (Long) 5 76th DialFrost 🇸🇬 Kaprekar Numbers 5 80th m-tkach 🇺🇦 Arrows 4 1–80 of 103 Next Last