A simple awk script to generate a json file from lichess PGN file.
- Input file may contain multiple games
- Handles games with clock, evaluation info
- doesn't handle pgn with move comments
- all moves in a game should be on one line
- if a game has computer evaluation and/or clock information, every move should have them
awk -vFPAT='([^ ]*)|("[^"]+")' -f convert_pgn_to_json.awk game.pgnTo run tests nodejs needs to be installed
npm install
npm testContents of the input file
[Event "Rated Bullet game"]
[Site "https://lichess.org/CdwUKIHh"]
[Date "2022.06.29"]
[White "DrNykterstein"]
[Black "Blazinq"]
[Result "1-0"]
[UTCDate "2022.06.29"]
[UTCTime "22:34:25"]
[WhiteElo "3279"]
[BlackElo "3038"]
[WhiteRatingDiff "+2"]
[BlackRatingDiff "-2"]
[WhiteTitle "GM"]
[BlackTitle "FM"]
[Variant "Standard"]
[TimeControl "60+0"]
[ECO "B23"]
[Opening "Sicilian Defense: Closed"]
[Termination "Normal"]
1. e4 { [%eval 0.33] [%clk 0:01:00] } 1... c5 { [%eval 0.32] [%clk 0:01:00] } 2. Nc3 { [%eval 0.24] [%clk 0:01:00] } 2... d6 { [%eval 0.36] [%clk 0:00:59] } 3. f4 { [%eval 0.0] [%clk 0:01:00] } 3... g6 { [%eval 0.15] [%clk 0:00:58] } 4. Nf3 { [%eval 0.0] [%clk 0:01:00] } 4... Bg7 { [%eval 0.0] [%clk 0:00:58] } 5. Bb5+ { [%eval 0.0] [%clk 0:00:59] } 5... Bd7 { [%eval 0.06] [%clk 0:00:58] } 6. a4 { [%eval 0.03] [%clk 0:00:58] } 6... a6 { [%eval 0.28] [%clk 0:00:56] } 7. Bc4 { [%eval -0.02] [%clk 0:00:57] } 7... e6 { [%eval 0.0] [%clk 0:00:55] } 8. O-O { [%eval -0.48] [%clk 0:00:57] } 8... Ne7 { [%eval 0.14] [%clk 0:00:54] } 9. d3 { [%eval -0.36] [%clk 0:00:56] } 9... O-O { [%eval -0.08] [%clk 0:00:54] } 10. Qe1 { [%eval -0.23] [%clk 0:00:56] } 10... Nbc6 { [%eval -0.22] [%clk 0:00:53] } 11. f5 { [%eval -0.42] [%clk 0:00:55] } 11... gxf5 { [%eval -0.44] [%clk 0:00:52] } 12. Qh4 { [%eval -1.58] [%clk 0:00:55] } 12... Ng6 { [%eval -0.22] [%clk 0:00:51] } 13. Qh5 { [%eval -0.69] [%clk 0:00:54] } 13... Nce5 { [%eval 0.11] [%clk 0:00:47] } 14. exf5 { [%eval -0.39] [%clk 0:00:52] } 14... Nxc4 { [%eval 6.95] [%clk 0:00:42] } 15. Ng5 { [%eval 6.56] [%clk 0:00:48] } 15... h6 { [%eval 6.68] [%clk 0:00:39] } 16. f6 { [%eval 6.27] [%clk 0:00:46] } 16... hxg5 { [%eval 5.7] [%clk 0:00:30] } 17. Bxg5 { [%eval 5.38] [%clk 0:00:42] } 17... Re8 { [%eval 7.51] [%clk 0:00:16] } 18. fxg7 { [%eval 7.39] [%clk 0:00:39] } 18... Qb6 { [%eval 14.21] [%clk 0:00:16] } 19. Bf6 { [%eval #2] [%clk 0:00:34] } 1-0
Output (unminified)
[
{
"Event": "Rated Bullet game",
"Site": "https://lichess.org/CdwUKIHh",
"Date": "2022.06.29",
"White": "DrNykterstein",
"Black": "Blazinq",
"Result": "1-0",
"UTCDate": "2022.06.29",
"UTCTime": "22:34:25",
"WhiteElo": "3279",
"BlackElo": "3038",
"WhiteRatingDiff": "+2",
"BlackRatingDiff": "-2",
"WhiteTitle": "GM",
"BlackTitle": "FM",
"Variant": "Standard",
"TimeControl": "60+0",
"ECO": "B23",
"Opening": "Sicilian Defense: Closed",
"Termination": "Normal",
"moves": [
{
"m": "e4",
"e": "0.33",
"c": "0:01:00"
},
{
"m": "c5",
"e": "0.32",
"c": "0:01:00"
},
{
"m": "Nc3",
"e": "0.24",
"c": "0:01:00"
},
{
"m": "d6",
"e": "0.36",
"c": "0:00:59"
},
{
"m": "f4",
"e": "0.0",
"c": "0:01:00"
},
{
"m": "g6",
"e": "0.15",
"c": "0:00:58"
},
{
"m": "Nf3",
"e": "0.0",
"c": "0:01:00"
},
{
"m": "Bg7",
"e": "0.0",
"c": "0:00:58"
},
{
"m": "Bb5+",
"e": "0.0",
"c": "0:00:59"
},
{
"m": "Bd7",
"e": "0.06",
"c": "0:00:58"
},
{
"m": "a4",
"e": "0.03",
"c": "0:00:58"
},
{
"m": "a6",
"e": "0.28",
"c": "0:00:56"
},
{
"m": "Bc4",
"e": "-0.02",
"c": "0:00:57"
},
{
"m": "e6",
"e": "0.0",
"c": "0:00:55"
},
{
"m": "O-O",
"e": "-0.48",
"c": "0:00:57"
},
{
"m": "Ne7",
"e": "0.14",
"c": "0:00:54"
},
{
"m": "d3",
"e": "-0.36",
"c": "0:00:56"
},
{
"m": "O-O",
"e": "-0.08",
"c": "0:00:54"
},
{
"m": "Qe1",
"e": "-0.23",
"c": "0:00:56"
},
{
"m": "Nbc6",
"e": "-0.22",
"c": "0:00:53"
},
{
"m": "f5",
"e": "-0.42",
"c": "0:00:55"
},
{
"m": "gxf5",
"e": "-0.44",
"c": "0:00:52"
},
{
"m": "Qh4",
"e": "-1.58",
"c": "0:00:55"
},
{
"m": "Ng6",
"e": "-0.22",
"c": "0:00:51"
},
{
"m": "Qh5",
"e": "-0.69",
"c": "0:00:54"
},
{
"m": "Nce5",
"e": "0.11",
"c": "0:00:47"
},
{
"m": "exf5",
"e": "-0.39",
"c": "0:00:52"
},
{
"m": "Nxc4",
"e": "6.95",
"c": "0:00:42"
},
{
"m": "Ng5",
"e": "6.56",
"c": "0:00:48"
},
{
"m": "h6",
"e": "6.68",
"c": "0:00:39"
},
{
"m": "f6",
"e": "6.27",
"c": "0:00:46"
},
{
"m": "hxg5",
"e": "5.7",
"c": "0:00:30"
},
{
"m": "Bxg5",
"e": "5.38",
"c": "0:00:42"
},
{
"m": "Re8",
"e": "7.51",
"c": "0:00:16"
},
{
"m": "fxg7",
"e": "7.39",
"c": "0:00:39"
},
{
"m": "Qb6",
"e": "14.21",
"c": "0:00:16"
},
{
"m": "Bf6",
"e": "#2",
"c": "0:00:34"
}
]
}
]