Object: Capture (or convert to your own color) all the opponent's royal pieces (King, Emperor, Emperor of Emperors, Elephant Prince, and Tiger Prince), or reduce the opponent to just one piece, or deprive the opponent of any legal moves.

The first player is called Blue, the second player Tan.

The board starts with the pawn rows already set up, but other piece positions are filled with Placeholder pieces. The Placeholders are replaced with real pieces as chosen pairwise by the players, where each pair of pieces can go in either of two locations on each side of the vertical centerline of the board. Blue first chooses the locations for the King and Commoner, and then, depending on whether or not the chosen locations have the two Kings facing each other, the rest of the setup is either mirror-symmetric about the horizontal centerline of the board, or rotationally symmetric about the center point. Tan chooses the starting locations of all pieces after the King and Commoner. You may also choose the random setup variant included in this file, where the computer decides the placement of the pieces.

To see a description of how a piece moves right-click on it to bring up its properties dialog. A brief summary of a piece's move is also displayed at the bottom of the window when the cursor is over the piece.

In Typhoon, every piece promotes. The promotion zone is the last 4 ranks of the board.

This game includes extra players, Nobody and ?Nobody, which perform bookkeeping functions. You can't play as either of these players, although Nobody appears in the Zillions of list of players.

To convince Zillions that some kinds of pieces can pass a turn (that is, make a move that doesn't actually go anywhere), there is a special space on the side of the board, where a Pass piece appears when you have a piece that can pass a turn (Parrot, Raven, Diving Osprey, or Horned Owl). You can click on the Pass piece to pass the turn.

For efficiency, the move-passing ability of the above pieces, as well as the immobilizing ability of the Immobilizer, are not enabled unless at least one of their unpromoted versions has promoted normally. This means that if you use Zillions's context menu to place one of these pieces on the board, it may not work right.

This is a slightly irregular enlargement of my game Scirocco. It was inspired by Chu Shogi and by the fever accompanying a nasty cold; I could have called the game Flu Shogi.
Typhoon was intended an exercise in immensity and eccentricity, but has proven quite playable.