Reddit reviews HIDETCHI Japanese-English SHOGI Dictionary

It's like asking how long it will take to reach 1-dan, it varies so much depending on time commitment, motivation, personal ability and method. I'd expect it would take at least a couple years, though there are examples of people becoming somewhat fluent in 6 months, so anything is possible.

As for the best approach, you'll find lots of opinions. I think people are generally bad at remembering what it was like when they started learning and knew nothing, so all those "here's how I'd do it if I started all over again" are not always the best advice but I'll try to give you my version of it anyway:

• Start with a generic "learn Japanese" method, those won't take you very far but you have to start somewhere. Your first goals should be to get a feeling for how Japanese works, basic grammar, a few basic words and most importantly learn to read and write hiragana and katakana (the phonetic system used in Japanese writing). I recommend the Japanese in Mangaland series of books, but any other decent beginner method will do.
  
  
• In parallel get the JapanesePod101 podcasts. Those really helped me a lot, as I would listen to them every day and build listening ability. They start from the very beginning too. Continue listening to them, especially during the next step for motivation.
  
  
• Now this is going to be controversial but after doing introductory material for some time, if you're really committed to learning Japanese and be efficient at it, you have to bite the bullet and learn the Kanji (Chinese characters): all 2000+ of them that are in common use. Fortunately that isn't that hard if you use the Heisig method, you can use the Kanji Koohii website to manage the flashcards you'll use for memorization. It's a bit controversial because with this method you're learning the Kanji in isolation without learning how they are actually used in Japanese. It's still 100% worth it. This turbo-charged my Japanese learning like nothing else before. It took me 3 months to go through the book and learn all the characters. Once you're familiar with the characters, it's 10 times easier to learn vocabulary, even if your goal is to listen to shogi commentary, it's still the best way of doing that in my opinion (plus you'll be able to read shogi books eventually)
  
  
• Once you're done with the kanji you need to start building vocabulary, using your new kanji knowledge, it will be much more efficient, as you learn vocabulary, you learn how to write them using kanji you already know and as a consequence learn how those kanji are pronounced and used. This is why this method works so well. For vocabulary I recommend using the Anki flashcard software, you can download pre-made decks of vocabulary. Look for Core 2k, 6k and 10k which are a set of most common words complete with example sentences and audio, there are alternative but I think those are the best lists. A few thousands words plus shogi specific vocabulary should be enough to get a decent understanding of shogi programs.
  
  Anyway this isn't everything, you need to continue with more grammar, practice, and so on while doing that, but this is the gist of what I wish I knew when I got started. I guess it can seem a bit overwhelming but just get started and go one step at a time...
  
  Also you'll need this: Dictionary :)