(;GM[1]FF[4]SZ[13]
GN[4 "classic" 3-3 invasions in a 4-stone game on 13x13, etc.]
PC[http://senseis.xmp.net/?WhoShouldPlayOnWhichBoardSize]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?WhoShouldPlayOnWhichBoardSize

4 "classic" 3-3 invasions in a 4-stone game on 13x13, etc.]
PL[W]

AB[eb][dc][fc][gc][hc][ic][dd][jd][kd][ce][le][cf][kf][cg][kg][ch][kh][bi][ki][cj][dj][jj][ek][fk][gk][hk][jk][il]
AW[cb][db][hb][ib][cc][jc][kc][lc][cd][ld][be][bf][lh][li][bj][kj][bk][ck][dk][kk][el][fl][jl][kl]

;W[lg]C[W1]MN[1]
;B[lf]C[B2]MN[2]
;W[gb]C[W3]MN[3]
;B[fb]C[B4]MN[4]
;W[bg]C[W5]MN[5]
;B[bh]C[B6]MN[6]
;W[gl]C[W7]MN[7]
;B[hl]C[B8]MN[8]

;
)
