ninuki renju

Ninuki renju is similar to renju without swaps, but ninuki allows for the capturing of pairs of stones. In addition to making a five in a row as in renju, capturing five pairs of the opponent's stones is another way to win the game. The game Pente is a simplification of ninuki renju. A ninuki renju game played in 1927 between Kubomatsu Katsukiyo (inventor of the game) and Murashima Yoshinori: https://pente.org/gameServer/forums/thread.jspa?forumID=27&threadID=231402&tstart=0