(;GM[1]FF[4]SZ[19]
GN[Necessary stones]
PC[http://senseis.xmp.net/?RecognizingAnEye]AP[GoWiki:2009]
DT[2014-06-13]
C[Diagram from http://senseis.xmp.net/?RecognizingAnEye

Necessary stones]
PL[B]

AB[ba][ab][bb][ii][ji][ij][kj][ik][jk][kk][io][jo][ip][kp][jq][kq]
AW[ia][ka][ib][jb][kb]
CR[aa][ja][bb][ib][kb][ii][jj][ik][kk]
SQ[io][kq]
LB[ko:b][iq:a]


;CR[aa][ja][bb][ib][kb][ii][jj][ik][kk]
SQ[io][kq]
LB[ko:b][iq:a]
)
