If you’ve played even a few games of shogi, you’ve probably heard someone say “nifu!” in a slightly panicked voice.
Maybe it happened to you. You’re feeling clever. You have a pawn in hand. You see a good square. You drop it… and then the game ends right there because it’s illegal.
That’s rough. So today I want to talk about the nifu rule, including what it is, why it matters, and the coolest part: how far back we can trace it in shogi history using Japanese sources.
And yes, we’ll also look at a few “pawn-related” rules that are basically nifu’s cousins. (more…)