This is just a simple, little variant of Hasami Shogi. It borrows a concept from the card game Schotten-Totten. "Shi-kensu" is the Japanese word for "sequence."
The game is played on a 9x9 board. Both players have nine pieces, each numbered with 1 through 9 on their face. The game begins with the pieces arranged in numerical order on the player's home ranks.
There are two ways to win:
Be the first to capture any five of your opponent's nine pieces.
Be the first to capture three of your opponent's pieces that are in numerical sequence (i.e. 1-2-3, 2-3-4, etc.)
Other than that, the normal rules for Hasami-Shogi apply. Pieces move like Rooks. Captures are by custodianship, and may wrap around corners. Note: in the basic, 9 piece game there are no jumps over other pieces allowed.
Round-the-Clock variant: In this version, the sequences of 8-9-1 or 9-1-2 are also considered winning combinations.