\usemodule[go]

\starttext

\setupboard
  [calculate=yes,
   alternative=b]

\startSGF
;B[jj];W[ji];B[jh];W[ij];B[ii];W[jk];B[ki];W[kj];B[lj];W[ji];B[kk];W[lk];B[jj]
\stopSGF

\setupboard
  [conversion=stone 1,
   size=small]

\startSGF
;B[de];B[ed];W[ee];B[ef];B[fe]
\stopSGF

\stoptext
