(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[Chris Oliver]PB[DDK]LB[dd:1][ed:2][fd:3][de:4][ee:5][fe:6][df:7][ef:8]
(;B[dd]
;W[fc]LB[cc:N][fc:1][hc:C][ic:M][fe:O][cf:A][df:B]TR[eb]C[Diagram 1])
(;B[ed]
;AE[ed]AW[db][fc][ic]AB[cc][dd][cf]LB[db:3][cc:4][fc:1][ic:5][cf:2]C[Diagram 2])
(;B[fd]
;AE[fd]AW[dd][ed][hd][dg]AB[fb][cc][dc][be]LB[fb:6][dc:2][dd:1][ed:3][hd:7][be:4][dg:5]C[Diagram 3])
(;B[de]
;AW[de][cf]AB[dc][cd][ce]LB[fc:6][cd:4][ce:2][de:1][cf:3][df:A][dg:B]C[Diagram 4])
(;B[ee]
;AE[ee]AW[ec][dd][de][df]AB[dc][cd][ce][cf][dg]LB[db:10][bc:11][cc:9][ec:5][cd:4][dd:3][ce:2][de:1][cf:6][df:7][dg:8]C[Dagram 5])
(;B[fe]
;AE[fe]AW[nc][dd][pd][lq][oq]AB[qf][po][dp][jq][qq]LB[ko:A][lo:B][jq:4][lq:3][oq:1][qq:2]C[Diagram 6 (from - http://gogameguru.com/5-4-openings-tips-tricks/ )])
(;B[df]
;AE[df]AW[nc][dd][pd][cj][jq][mq]AB[qf][pj][po][dp][hq][pq]LB[cj:5][hq:2][jq:1][mq:3][pq:4]C[Diagram 7 (from - http://gogameguru.com/5-4-openings-tips-tricks/ )

An alternative for White; this result looks a lot more comfortable. White 5 on the left side is more pressing than extending up from the small group on the bottom side.])
(;B[ef]
;AE[ef]AW[nc][dd][pd][dj][rm][cn][en][rn][qo][pp][qq]AB[qf][pj][pn][qn][po][cp][dp][fp][ip][op][oq]LB[nc:6][dd:4][pd:2][qf:5][di:A][dj:22][pj:7][rm:16][cn:18][en:20][pn:15][qn:11][rn:14][po:3][qo:10][cp:19][dp:1][fp:21][ip:17][op:13][pp:12][oq:9][qq:8]C[Diagram 8 (from - http://gogameguru.com/5-4-openings-tips-tricks/ )]))
