title: Hon'inbō Jōsaku
text: # Hon'inbō Jōsaku
  
  Hon'inbō Jōsaku (本因坊丈策, 1803–1847) was a Japanese professional go player and the thirteenth head of the Hon'inbō school. He was not in the same top-rank class over the board as either his predecessor Jōwa or his successor Shūwa.
  
  