(;GM[1]FF[4]SZ[19:4]
GN[Seki, all empty intersections are unplayable]
PC[http://senseis.xmp.net/?MaximumUnfillablePointsInSekiQuestion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?MaximumUnfillablePointsInSekiQuestion

Seki, all empty intersections are unplayable]
PL[B]

AB[ba][fa][ja][na][ra][ab][bb][cb][fb][gb][jb][kb][nb][ob][rb][sb][dc][ec][hc][ic][lc][mc][pc][qc][dd][hd][ld][pd]
AW[da][ha][la][pa][db][eb][hb][ib][lb][mb][pb][qb][ac][bc][cc][fc][gc][jc][kc][nc][oc][rc][sc][bd][fd][jd][nd][rd]


;
)
