Conventional Sekigahara games uses some diplomatic system which makes solitaire play very difficult.
In this game, Nakamura tries to make a new type Sekigahara game suitable for solitaire.

The game mechanics is unique.
You must turn one card from the deck and follow the instruction. This procedure is repeated until you draw the card "Ieyasu moves". Then, the turn is finished after the movement of Ieyasu. This makes solitaire play easy. Because you must focus the current action described by the card and you never know what will happen next.

1 map
90 counters
16 cards

According to specification, this game can be finished within 2 hours.

Issue game of Game Journal #32.