The rule is simple, the classic board game "Hasami Shogi".

▼ Hasami Shogi rules
- Move the pieces alternately
- You can take it by sandwiching the piece of the opponent's piece.

▼ About victory conditions
You can win with either
- Either one takes 5 cards first
- The game will be decided if the number of pieces taken is 3 pieces different.
However, the match will continue as soon as the opponent recovers the pieces, instead of having a match immediately after the difference of 3 cards.