Bo-tsugi (棒継ぎ), or "pole connection," is a connection which results in a semi-freestanding straight line of three or more stones.
Correct shape for Black here is the pole connection of .
This is vulgar.
Shaydwyrm: In this 1-space low pincer joseki, is Bo-tsugi. The natural move for most players would be at "a", and this too is a joseki, emphasizing the left side. The bo-tsugi has the advantage of allowing the link-up at
, however, forcing white to choose between reducing Black's influence at
or separating at "b". If White chooses "b", Black will hane at 6 and treat his marked stone lightly, trading the corner territory for a wall facing the left side.
John F. Bo-tsugi is distinct from pintsugi in that the latter is an alternative to katatsugi and means any solid connection, not just one in a straight line. Bo-tsugi reminds me one of my favourite terms, from France, for a line of stones: baguette.
ilan: Thought for food is the work of go professionals.