From a PGN create and (automatically) view a HTML file, example-1 is created from gambit.pgn (provided in the download) taken from the YAT gambit tournament. Example-2 is created from a CCRL pgn testing Komodo 12.
Check the PGN of an engine-engine PLY-Match, games should be indentical else perhaps something is wrong. Different moves are marked and stored in OUTPUT.PGN Background: it's extremely important (especially for starters) that a PLY-MATCH (say PLY=10) produces the exact same reverse game, so game-1 and game-2 in the PGN should be 100% equal, game-3 = game-4 and so on.
This function will create a cross table from a (large) PGN file. Maximum number of players (human and/or engine) is 100. Example taken from the gambit.pgn mentioned earlier. Another example, the final FCP rating list by Frank Quisinsky.
Strip played moves by engines from a PGN. What is left and stored in OUTPUT.PGN are the book moves. Handy for opening book tuning with Polyglot.
Split large PGN files into smaller parts.
Remove Double Openings (games)
From a PGN collection display the match score, then remove the double openings and calculate the new match score without the double openings. This util is handy in 3 ways:
. checking an eng-eng match for opening doubles, see screenshot (file bf.pgn)
. pre-checking your predefined opening sets for eng-eng matches.
. In case a PGN doesn't contain comments it will check for duplicated games.
Remove doubles from an EPD collection.
Remove invalid positions from an EPD collection.
Converts EPD to PGN, bm and ce tags included when present. Try this with the included 150 positions example.epd file.
Split large EPD files into smaller parts.
Create an EPD collection from PGN games for the use of Analyze EPD, Analyze EPD++ or Analyze EPD+++. With the option "Ply from" - "Ply till" you can hack the analysis job into pieces. Doubles are removed.
Analyze an EPD collection with Stockfish 8, 9 and higher. Example before and after.
Analyze an EPD collection with Stockfish 8, 9 and higher splitting the analyzing over a user defined number of threads for speed reasons. Example before and after.
The advantage of Analyze EPD and Analyze EPD ++ is that it will work with every new version provided the Stockfish team doesn't change the bench function. Just copy a newer Stockfish version in the SOMU folder.
Current default version is SF10x a beta version considerable stronger than SF9, see results.
As Analyze EPD++ but with Multi-PV 2, 3 or 4. Example before and after.
Delete bad or too good EPD positions controlled by a flexible score margin.
From each PGN game create an EPD of the last move.
Quickly count the number of games in a PGN.
Quickly count EPD positions.
Reverse (mirror) an EPD collection.
Remove illegal 'bm' moves from an EPD collection, long notation only.
Create a statistic from an EPD collection. It also will create 10 separate EPD files:
. Queen | Rook | Bishop and Knight promotions
. Possitive Mate in X moves | Negative Mate in -X moves
. Pawn Endings | Bishop Knight endings | Rook endings | Queen Endings
Extract comp games from Lichess.
On the Lichess server people around the world cuurently are playing 33 million games (and growing) a month This function allows you to separate chaff of corn.
1. Human games | Computer games. According to the website computer games are strictly games that include Stockfish analysis evaluations.
2. Selection on ELO. Example of this function here.
PGN to MEA or SIMEX
From a PGN create an EPD set for the use of MEA as used in OKE and SIMEX.
Example from the eng-eng match brainfish.pgn included in the download:
Ply from : 0
Ply till : 80
epd size : 10000
Will create an EPD of 10,000 records.
EPD to MEA or SIMEX
Converts an EPD that contains the "bm" tag for the use of MEA as used in OKE and SIMEX.
Included is the example file midgame.epd extracted from Dann Corbit's collection.