💎 Oldest diamonds (uncontested gold medals) in ISBN 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 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 ><> 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 ><> 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 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 Submitted 1st canissimia 🇦🇶 ISBN 11 Jan 2022 2nd Shanethegamer 🇺🇸 ISBN 21 Apr 2022 3rd GrayJoKing 🇦🇺 ISBN 19 Jun 2022 4th HPWiz 🇳🇿 ISBN 28 Jun 2022 5th canissimia 🇦🇶 ISBN 13 Jul 2022 6th Lydxn 🇨🇦 ISBN 21 Aug 2022 7th primo-ppcg 🇹🇭 ISBN 9 Dec 2022 8th m-tkach 🇺🇦 ISBN 30 Dec 2022 9th Lydxn 🇨🇦 ISBN 26 Feb 2023 10th Lydxn 🇨🇦 ISBN 27 Feb 2023 11th JayXon 🇺🇸 ISBN 21 May 2023 12th 4hg 🇺🇸 ISBN 26 Jul 2023 13th MeWhenI 🇻🇦 ISBN 2 Aug 2023 14th JayXon 🇺🇸 ISBN 3 Aug 2023 15th JayXon 🇺🇸 ISBN 11 Nov 2023 16th JayXon 🇺🇸 ISBN 22 Apr 2024 17th GrayJoKing 🇦🇺 ISBN 21 Jun 2024 18th JayXon 🇺🇸 ISBN 22 Jun 2024 19th GrayJoKing 🇦🇺 ISBN 28 Jun 2024 20th IanUtley ISBN 17 Jul 2024 21st GrayJoKing 🇦🇺 ISBN 23 Jul 2024 22nd JayXon 🇺🇸 ISBN 24 Jul 2024 23rd saito-ta 🇯🇵 ISBN 16 Aug 2024 24th GrayJoKing 🇦🇺 ISBN 17 Aug 2024 25th jared-hughes ISBN 18 Dec 2024 26th bitsandbeyond 🇳🇱 ISBN 18 Jan 2025 27th GrayJoKing 🇦🇺 ISBN 31 Jan 2025 28th ovs-code 🇩🇪 ISBN 18 Apr 2025 29th xsot 🇸🇬 ISBN 22 May 2025 30th JayXon 🇺🇸 ISBN 24 May 2025 31st primo-ppcg 🇹🇭 ISBN 10 Jul 2025 32nd edsrzf 🇳🇿 ISBN 24 Jul 2025 33rd edsrzf 🇳🇿 ISBN 16 Aug 2025 34th edsrzf 🇳🇿 ISBN 15 Oct 2025 35th edsrzf 🇳🇿 ISBN 18 Nov 2025 36th edsrzf 🇳🇿 ISBN 19 Nov 2025 37th edsrzf 🇳🇿 ISBN 27 Nov 2025 38th edsrzf 🇳🇿 ISBN 28 Nov 2025 39th rhdqor213 ISBN 6 Jan 2026 40th edsrzf 🇳🇿 ISBN 8 days ago 1–40 of 40