![]() That’s the first line in the table above. I benchmarked this by reading each game from a subset of the KingBaseLite database and constructing the full underlying game tree for each game. Split the line into tokens (like a move token, annotations, comments etc.)Įxtract the target file and piece type (and row/line disambiguity markers)įind the unique move among all legal moves of that piece type and The algorithm was like this: read each line in the PGN file When I originally implemented PGN parsing, I took a look at python-chess – really excellent, easy to read code. New Parser, compute only pseudo-legal movesĪbove plus no pseudo-legal move generation if only once pieceĪbove plus no QString uci as class member of Move Even though Jerry is not primarily database program, such basic functionality should be present. Nevertheless, PGN is here to stay, and so my goal is to quickly parse huge PGN files in order to be able to search for arbitrary positions. For a human it’s easy to spot the source-field, but for a computer it means that the program has to know the chess-rules to figure out which move is executed (there are shortcuts, as described below). The main difficulty in parsing PGN files – aside from a lot of ambiguities – is SAN notation, i.e. The odd thing here is that PGN files are rarely created manually, almost everyone uses a chess program to enter or edit moves, and then save the game afterwards. ![]() At a cost, namely that it’s difficult to parse it with computers. PGN is designed to make it easy for humans to read PGN files, and edit or write them manually with a text editor. Apparently, it’s not just me who thinks so. Unfortunately, PGN is somewhat misdesigned. I’ve been a PGN reader for 20 years and now my personal touch and exclusive stories are forever in its history and on my resume.PGN is the de-facto standard for chess games, especially when it comes to interoperability. I don’t feel up to moving to a new place that I don’t know and trying to find my way around, much less report to locals. I hope to stay in Philadelphia, a city I love and know so much about, having first moved here more than 20 years ago, and being fortunate to have been able to contribute to news-gathering. I’m thrilled to have received so many public thanks for the work I’ve done over the past three-and-a-half months, and for the contacts I’ve made in so many fields around town. I’ve learned to do a lot of things I couldn’t in the past, from leaving the office to approach strangers in public ( thanks, Street Talk, mostly!) to writing stories with just the right amount of words, knowing too much information would be nothing but a waste during both interviews and writing. Having an agent and paid vacation days helps those still in the big time. There was no way to move forward personally while keeping up-to-date on news, constantly suggesting story ideas the paper had nobody to write, in addition to working seven days a week on social media – and keeping up my quality.Ī journalist should be on call, 24/7. Now, I’ll finally get to spend my time looking for something permanent. Right decision.Īs for running to catch a bus for a story that wasn’t timely, and falling and getting bloodied up while not being offered any sort of insurance: I’m too smart to do that again. I prefer to sit still at a desk and focus all day. I’ve never been one to splurge, but could never survive on what they offered, and was never interested in going out to report full-time. I knew it would come down to this more than a month ago. Hopefully, they’ll all get support from the top. (I think you can tell by the latest issue.) Plus, a new reporter will be starting next month, giving the paper a second full-time writer. They’re training a new editor and graphic artist. The timing is also right, since the paper is in transition. I’ll keep away from issues of freedom from slavery, at least for now! I think there’s something spiritual about this happening during Passover, a spring holiday, with renewal one of the season’s main themes. Ladies and gentlemen, that time has come! Furthermore, I have years of successful experience doing it. I enjoy researching and writing, preferably online, and using social media to promote the final product. How many of you I’m in contact with regularly have heard me say I want more “me time” to put together my latest work (that’s this) and then concentrate on finding a full-time position?
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