Reverse Polish Notation 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 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial 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 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring 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 Experimental Language 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 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 Gray Code Decoder Gray Code Encoder 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 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 637th beirigo 🇧🇷 657 61 37ms 17 Oct 2025 642nd IISResetMe 657 88 357ms 25 Dec 2025 643rd MeWhenI 🇻🇦 657 204 2ms 11 Sep 2022 644th edsrzf 🇳🇿 657 282 6ms 20 Feb 2025 645th CatsAreFluffy 655 178 2ms 24 Feb 2023 646th jerrandolph 655 280 329ms 19 Dec 2023 647th Florian-Mt 655 286 292ms 15 Jul 2024 648th lynn 654 115 13ms 12 Feb 2022 648th Kacarott 🇦🇺 654 115 261ms 4 Feb 2025 650th WalrusesAreAwesome 653 210 394ms 16 Feb 2026 651st SirBogman 🇺🇸 652 283 41ms 31 Dec 2023 652nd UnderKoen 🇳🇱 652 284 13ms 26 Aug 2025 653rd TehFlaminTaco 650 113 31ms 10 Nov 2022 654th thehylian 648 116 15ms 14 Jan 2023 654th zacjl 648 116 16ms 20 Apr 2023 656th Shanethegamer 🇺🇸 648 151 19ms 14 Aug 2024 657th DialFrost 🇸🇬 647 99 2,690ms 5 Sep 2025 658th CaedenHarper 🇨🇦 647 212 360ms 17 Oct 2025 659th nwellnhof 🇩🇪 646 62 40ms 4 Jun 2022 659th KL-Lru 646 62 39ms 29 Dec 2022 659th KatieLG 🇬🇧 646 62 38ms 2 Oct 2025 662nd CatsAreFluffy 646 205 142ms 31 Mar 2023 663rd not-a-pokemon 645 181 1ms 5 Jul 2025 664th betaveros 643 117 17ms 31 Dec 2022 664th DayDun 🇸🇪 643 117 21ms 22 Jan 2023 664th KasperKivimaeki 🇫🇮 643 117 18ms 1 Jul 2025 664th bzijlema 🇳🇱 643 117 18ms 12 Nov 2025 664th Natanaelel 🇸🇪 643 117 18ms 10 Feb 2026 664th StefanHabel 🇨🇦 643 117 19ms 17 Mar 2026 664th SectorCorruptor 643 117 17ms 22 days ago 671st brimstonetrader 643 206 148ms 21 Jan 2024 672nd jusaka 643 691 1,689ms 34 mins ago 673rd ovs-code 🇩🇪 642 105 1,139ms 27 Oct 2023 674th Yewzir 🇧🇪 642 211 484ms 9 Feb 2023 675th jupj 🇫🇮 641 182 2ms 16 Sep 2022 675th jared-hughes 641 182 2ms 9 Jan 2023 677th MiffOttah 641 214 400ms 28 Nov 2024 678th NickTheEASDude 🇺🇸 639 154 2ms 18 Sep 2024 679th edsrzf 🇳🇿 639 175 117ms 10 Jun 2025 680th DialFrost 🇸🇬 639 287 330ms 29 May 2025 681st Florian-Mt 638 115 12ms 27 Oct 2023 682nd bizy-coder 637 118 41ms 6 Aug 2023 682nd Rubiksmath 637 118 41ms 7 Aug 2023 682nd blaztoma 🇱🇹 637 118 72ms 16 Feb 2026 685th denkyuu1 636 63 35ms 15 days ago 686th jared-hughes 635 221 2,920ms 9 Jan 2023 687th CaedenHarper 🇨🇦 634 101 4,393ms 23 Oct 2025 688th dokutan 634 190 200ms 12 Jul 2024 689th Frowny 632 119 118ms 13 Feb 2022 689th prplz 🇦🇺 632 119 16ms 13 Feb 2022 689th bricknellj 632 119 21ms 14 Feb 2023 689th edsrzf 🇳🇿 632 119 22ms 4 Oct 2025 689th ryyyn 🇺🇸 632 119 20ms 8 Feb 2026 694th GolfingSuccess 🇬🇷 631 163 120ms 29 Jul 2025 695th stefangimmillaro 630 133 6ms 2 Jul 2023 696th flekAI 628 117 10ms 3 days ago 697th JRaspass 🇬🇧 628 292 326ms 18 May 2022 698th TobyBoyne 🇬🇧 627 120 18ms 18 Feb 2022 698th OllieBoyne 🇬🇧 627 120 17ms 18 Feb 2022 698th petroselo 627 120 232ms 12 Apr 2022 698th inventshah 627 120 19ms 15 Nov 2022 698th CaedenHarper 🇨🇦 627 120 18ms 27 Dec 2024 698th Lv0Sys 🇵🇱 627 120 21ms 27 Feb 2026 704th ChiefChippy2 626 64 40ms 12 Feb 2022 704th GrayJoKing 🇦🇺 626 64 38ms 13 Feb 2022 706th SirBogman 🇺🇸 625 92 34ms 23 Apr 2022 707th emgordon154 625 93 146ms 7 Aug 2024 708th targrik 625 134 7ms 14 Aug 2025 709th MeWhenI 🇻🇦 624 108 358ms 15 Feb 2023 710th elPossenreisser 624 220 400ms 6 May 2022 711th Beariish 623 158 2ms 27 Mar 2025 712th albanian-laundromat 🇺🇸 622 103 3,506ms 25 Oct 2025 713th primo-ppcg 🇹🇭 621 121 21ms 4 Mar 2022 713th EnTerr 621 121 23ms 8 Sep 2024 713th Bulmenisaurus 621 121 14ms 3 Oct 2025 716th madex 🇩🇪 621 188 1ms 10 Apr 2022 717th janAkali 🇷🇺 621 208 412ms 9 Oct 2024 718th GolfingSuccess 🇬🇷 620 196 120ms 28 Nov 2025 719th ovs-code 🇩🇪 619 94 161ms 17 Apr 2025 719th rucin93 🇵🇱 619 94 147ms 13 Jun 2025 First Prev 641–720 of 1,230 Next Last