Parse Portable Game Notation (‘PGN’) Files
‘Portable Game Notation’ (‘PGN’) is a plain text computer-processible format for recording chess games (both the moves and related data), supported by many chess programs. It was was devised around 1993, by Steven J. Edwards, and was first popularized via the ‘Usenet’ newsgroup ‘rec.games.chess’. ‘PGN’ is structured “for easy reading and writing by human users and for easy parsing and generation by computer programs.” The chess moves themselves are given in algebraic chess notation. Tools are provided to parse ‘PGN’ files into a data frame.
The following functions are implemented:
pgn2sql: Convert a PGN file to a SQLite DBpgn_count: Count number of games in a PGN fileread_pgn: Read in a PGN file
The following built-in data sets are included:
system.file("extdata", "r7.pgn", package="pigeon"): 2017 FIDE World Cup extract
devtools::install_github("hrbrmstr/pigeon")library(pigeon)
library(tidyverse)
# current verison
packageVersion("pigeon")## [1] '0.2.0'
Built-in example
fide <- read_pgn(system.file("extdata", "r7.pgn", package="pigeon"))
fide## # A tibble: 2 x 13
## Event Site Date Round White Black Result BlackElo WhiteElo
## <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr>
## 1 World Cup 2017 Tbilisi 2017.09.23 44.1 Aronian Levon (ARM) Ding Liren (CHN) 1/2-1/2 2777 2799
## 2 World Cup 2017 Tbilisi 2017.09.24 45.1 Ding Liren (CHN) Aronian Levon (ARM) 1/2-1/2 2799 2777
## # ... with 4 more variables: LiveChessVersion <chr>, ECO <chr>, moves_raw <list>, Moves <list>
glimpse(fide)## Observations: 2
## Variables: 13
## $ Event <chr> "World Cup 2017", "World Cup 2017"
## $ Site <chr> "Tbilisi", "Tbilisi"
## $ Date <chr> "2017.09.23", "2017.09.24"
## $ Round <chr> "44.1", "45.1"
## $ White <chr> "Aronian Levon (ARM)", "Ding Liren (CHN)"
## $ Black <chr> "Ding Liren (CHN)", "Aronian Levon (ARM)"
## $ Result <chr> "1/2-1/2", "1/2-1/2"
## $ BlackElo <chr> "2777", "2799"
## $ WhiteElo <chr> "2799", "2777"
## $ LiveChessVersion <chr> "1.4.8", "1.4.8"
## $ ECO <chr> "A18", "E06"
## $ moves_raw <list> ["1. c4 {[%clk 1:30:45]} Nf6 {[%clk 1:30:26]} 2. Nc3 {[%clk 1:31:06]} e6 {[%clk 1:30:50]}...
## $ Moves <list> [<"c4", "Nf6", "Nc3", "e6", "e4", "d5", "cxd5", "exd5", "e5", "Ne4", "Nf3", "Bf5", "Be2",...
Bigger example
tf <- tempfile(fileext = ".zip")
td <- tempdir()
download.file("https://www.pgnmentor.com/players/Adams.zip", tf)
fil <- unzip(tf, exdir = td)
adams <- read_pgn(fil)
adams## # A tibble: 2,982 x 12
## Event Site Date Round White Black Result WhiteElo BlackElo ECO
## <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr>
## 1 Lloyds Bank op London 1984.??.?? 1 Adams, Michael Sedgwick, David 1-0 C05
## 2 Lloyds Bank op London 1984.??.?? 3 Adams, Michael Dickenson, Neil F 1-0 2230 C07
## 3 Lloyds Bank op London 1984.??.?? 4 Hebden, Mark Adams, Michael 1-0 2480 B10
## 4 Lloyds Bank op London 1984.??.?? 5 Pasman, Michael Adams, Michael 0-1 2310 D42
## 5 Lloyds Bank op London 1984.??.?? 6 Adams, Michael Levitt, Jonathan 1/2-1/2 2370 B99
## 6 Lloyds Bank op London 1984.??.?? 9 Adams, Michael Saeed, Saeed Ahmed 1-0 2430 B56
## 7 BCF-ch Edinburgh 1985.??.?? 1 Adams, Michael Singh, Sukh Dave 1/2-1/2 2360 2080 B70
## 8 BCF-ch Edinburgh 1985.??.?? 2 Abayasekera, Roger Adams, Michael 1-0 2200 2360 B13
## 9 BCF-ch Edinburgh 1985.??.?? 3 Adams, Michael Jackson, Sheila 1/2-1/2 2360 2225 C85
## 10 BCF-ch Edinburgh 1985.??.?? 4 Muir, Andrew J Adams, Michael 1/2-1/2 2285 2360 E45
## # ... with 2,972 more rows, and 2 more variables: moves_raw <list>, Moves <list>
glimpse(adams)## Observations: 2,982
## Variables: 12
## $ Event <chr> "Lloyds Bank op", "Lloyds Bank op", "Lloyds Bank op", "Lloyds Bank op", "Lloyds Bank op", "Lloyds...
## $ Site <chr> "London", "London", "London", "London", "London", "London", "Edinburgh", "Edinburgh", "Edinburgh"...
## $ Date <chr> "1984.??.??", "1984.??.??", "1984.??.??", "1984.??.??", "1984.??.??", "1984.??.??", "1985.??.??",...
## $ Round <chr> "1", "3", "4", "5", "6", "9", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "?", "1", ...
## $ White <chr> "Adams, Michael", "Adams, Michael", "Hebden, Mark", "Pasman, Michael", "Adams, Michael", "Adams, ...
## $ Black <chr> "Sedgwick, David", "Dickenson, Neil F", "Adams, Michael", "Adams, Michael", "Levitt, Jonathan", "...
## $ Result <chr> "1-0", "1-0", "1-0", "0-1", "1/2-1/2", "1-0", "1/2-1/2", "1-0", "1/2-1/2", "1/2-1/2", "1-0", "1/2...
## $ WhiteElo <chr> "", "", "2480", "2310", "", "", "2360", "2200", "2360", "2285", "2360", "2250", "2360", "2225", "...
## $ BlackElo <chr> "", "2230", "", "", "2370", "2430", "2080", "2360", "2225", "2360", "2245", "2360", "2260", "2360...
## $ ECO <chr> "C05", "C07", "B10", "D42", "B99", "B56", "B70", "B13", "C85", "E45", "C84", "B10", "C85", "A22",...
## $ moves_raw <list> ["1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 cxd4 8.cxd4 f6 9.Bd3 Bb4+ 10.Bd2 Q...
## $ Moves <list> [<"e4", "e6", "d4", "d5", "Nd2", "Nf6", "e5", "Nfd7", "f4", "c5", "c3", "Nc6", "Ndf3", "cxd4", "...
unlink(tf)
unlink(fil)
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