How to avoid illegal pawn drops on the chess-like game Shogi

Do you like chess? How about Japanese chess? Aren't there different chess variants in Japan though? Maybe, but this specific chess variant is called Shogi. The chess-like game Shogi is won by capturing the king, just like chess, but defeat is conceded at mate, or when mate becomes unavoidable.

This video tutorial gives you a lesson on how to avoid an illegal pawn drop on the Shogi board. Illegal pawn drops are "mate with a dropped pawn" and "two pawns in a file". Also, you'll see a brilliant mate problem, in which a rook chooses to unpromote so as to avoid "mate with a dropped pawn". If you already know how to read the Chinese characters on the Shogi pieces, then you'll fly through this lesson like it's nothing. You won't believe how similar Shogi is to actual chess.