Hon'inbō Chihaku

Hon'inbō Chihaku (本因坊知伯, 1710–1733) was a Japanese professional go player, and sixth head of the Hon'inbō house.

He was a nephew of Hon'inbō Dōchi. He died young, before an official heir had been appointed.

Oshirogo

 * 1722 against Inoue Insetsu Inseki (B with three stones, won)
 * 1723 against Hayashi Bonkyu (B with two stones, jigo)
 * 1725 against Hayashi Incho (B with two stones, W), against Inoue Yuseki (B, lost)
 * 1726 against Inoue Insetsu Inseki (B, jigo)
 * 1727 against Yasui Senkaku, (B, jigo)
 * 1728 against Hayashi Incho, (B, won)
 * 1730 against Inoue Shunseki (W, lost)
 * 1731 against Inoue Shunseki, (B, won)
 * 1733 against Inoue Shunseki (W, lost)