(;GM[1]FF[4]SZ[19]
GN[a go grid]
PC[http://senseis.xmp.net/?PietersPatternSearchAlgorithm]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?PietersPatternSearchAlgorithm

a go grid]
PL[B]

AW[jh]
LB[hh:e][hi:e][hj:e][hk:e]


;LB[hh:e][hi:e][hj:e][hk:e]
)
