pgn

At this moment, no informative message is displayed if no results are found after searching a chess opening, as it is shown in the GIF below.

Figure 1. No results were found for the user's query.

It'd be awesome if an informative message reading "No chess openings were foun

The movetext validation should be refactored so that chess games ending in any of the following combination of characters will pass the validation process as well:

• 1–0
• 1/2–1/2
• ½–½
• 0–1

Please note how the above, which are non-standard, differ from the PGN standard ones.

• 1-0
• 1/2-1/2
• 0-1

The thing is, non-standard PGN notation is typically found on websites like Wikiped

Let's teach the computer to play chess by example!

This issue is intended to create the necessary data that will be used to teach the computer to deliver checkmate with a king, a bishop and knight against a lone king.

As described in Add a new script to prepare data from FEN positions #1, a new script which will prepare games loaded from