(;GM[1]FF[4]SZ[19]
GN[Rickard-Thornton]
PC[http://senseis.xmp.net/?TA1999Problem4]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TA1999Problem4

Rickard-Thornton]
PL[W]

AB[oc][qd][ce][ie][cf][ff][cg][qh][ci][no][dp][nq][kr][pr]
AW[dc][ic][ed][kd][df][dg][dh][oi][qj][pn][kp][pp][qq]


;
)
