Shogi for chess players
You already know most of this game. The rook is a rook, the bishop is a bishop, check is check. This course skips all of that and spends its time on the half-dozen places where shogi stops being chess - above all on the rule that lets a captured piece come back fighting for whoever took it.
Chess and shogi, side by side
The course: seven lessons
The pieces, in both vocabularies
What chess players ask first
Where is the queen?
There is none, and nothing starts anywhere near that strong. The rook and bishop are the only ranging pieces, and they only approach queen-like power after promotion, as the Dragon King and the Dragon Horse. That is why shogi openings are slow: neither side has a piece that can punish a mistake from across the board on move six.
If nothing ever leaves the board, how does a game end?
By checkmate, almost always - and sooner than in chess, not later. Because both sides keep re-arming from what they capture, attacks accelerate instead of burning out, and a king that is one move from safety is usually one move from mate too. Draws are so rare that most players go years without one.
Is my chess ability worth anything here?
Most of it. Calculation, king safety, tempo, the habit of asking what your opponent wants - all of it transfers. What does not transfer is material evaluation: trading down into a "won endgame" does not exist, because the pieces you traded off are now in your opponent's hand.
What to learn next
Knowing the rules is not yet knowing how to play. The usual next step is one castle and one opening: build the Mino castle, learn a Swinging Rook opening behind it, and play a dozen games without changing anything. Then read the piece pages to see what each one is actually for in the middle game.
openings castles piece by piece guide play shogi online
The structure of this course follows "Shogi: Aprendendo o Básico" by Diego Parracho Viana Silveira (Semicollon Estúdios), written for this site and free for anyone to use.