(;SZ[19]AP[MultiGo:3.3.0]C[This game was the top-of-the-table match between Ming Zhou 
and Kevin Lui in the fifth round of the 2009 NZ champs. 

Ming is black. 

I'm commenting on a game between players a lot stronger than 
me - so take what I say as opinion only, and likely to be wrong.

Colin Grierson];B[pd];W[dd];B[pq];W[dq];B[do];W[gq];B[cq];W[cr];B[cp];W[cl]
;B[em]C[
Wouldin't b2, d2, b1 Settling the group be better. There is the 
possibility of a later attack on white's group at the bottom. 
Coming out is nice, but I don't like being undercut as black is here.]
(;W[er];B[dk];W[ck];B[dj];W[cj];B[di];W[ch];B[eg];W[cg]
;B[pk]C[
I think black would be happy so far];W[nc];B[pf];W[pb];B[lc];W[ld];B[mc];W[md];B[nb];W[oc];B[jc]
;W[kd];B[ib];W[qc];B[qd];W[ob];B[ne];W[ie];B[fc];W[hc];B[jd]
;W[je];B[hd];W[id];B[ic];W[kc];B[kb];W[hb]
(;B[lb];W[ia];B[jb];W[gd];B[he];W[gc]
(;B[nd]C[
This move seems - hopeful to me. White wants to move down and 
erase black's thickness. If he does this and settles himself, 55 
becomes a wasted move. Perpahs black should just live with N19.];W[kf];B[ma];W[hf];B[ge];W[fd];B[gf]
;W[hg]C[
Black appears to have lost badly in this exchange. White has 
erased black's thickness and almost got a big corner in the upper 
left. I think the cut at o16 is to blame. It's almost a useless move 
now.];B[gg];W[hh];B[jg];W[kg];B[jh];W[if]
;B[gj]C[
Unfortnate to have to play here, but the weaknesses along the 
side make it necessary. White is happy to play G10 I think.];W[hj]
;B[ee]C[
I don't understand this. It seems to force white to secure the 
corner while only securing half an eye for black. Why do this?];W[cc];B[gi];W[hi];B[jj];W[ki];B[ji];W[hl];B[jl];W[gh];B[fh]
;W[gk];B[ci];W[bi];B[bh];W[bg];B[dl];W[cm];B[gp];W[gn];B[fo]
;W[jn]
(;B[fq]C[J7 is not interesting now, so Ming tries to build something at the 
bottom first.];W[ep];B[eo];W[fp];B[go];W[hq]
(;B[iq]C[Not a move I would have thought of!];W[hn];B[ik];W[fk];B[fi];W[hk];B[gr];W[hr];B[ir];W[hp];B[ho]
;W[ip];B[io];W[jp];B[jo]
;W[jm]C[114 hurts black's center group, and black has almost lost the two 
stones at the bottom.];B[ko];W[lm];B[lk];W[nm]
;B[pm]C[Black should really look after the center group, but he needs to 
try for more territory.];W[mj];B[mk];W[nk];B[lj];W[nj];B[lh];W[mg];B[mh];W[ng];B[lg]
;W[mf];B[nh];W[og];B[nl];W[pg];B[rb];W[rc];B[rd];W[sb];B[qg]
;W[qh];B[rg];W[ml];B[ol];W[oi];B[oh];W[ph];B[pi];W[rh];B[qi]
;W[of]C[Black's punishment for not defending the centre group. Can the 
group on the side live?

I can't find a way, not even a ko]
(;B[ln]
;W[pe]C[It can't live now.];B[kp];W[jq];B[jr];W[kq];B[lq];W[kr];B[lr];W[ks];B[ls];W[eq]
;B[km];W[kn];B[kl];W[rj];B[rk]
;W[ri]C[Black resigns. He's about 20 points behind by my rough count.])
(;B[sd];W[sc]
(;B[oe]
(;W[rf];B[qf];W[sg];B[sf];W[se];B[re])
(;W[qf]
(;B[qe];W[rf])
(;B[rf];W[pe];B[qe];W[pf];B[se];W[sg])))
(;B[qe];W[rf])
(;B[rf];W[pe];B[qe];W[oe])
(;B[sh];W[ri];B[pe];W[rf];B[qf];W[re])))
(;B[im];W[hn];B[in];W[ho];B[io];W[hp]
;B[jq]C[J7 seems reasonable now.]))
(;B[im]
;W[ho]C[
White is out and black has achieved very little this way.]))
(;B[hf];W[kf]
;B[ma]C[Better I think.]))
(;B[gc];W[ia];B[jb];W[he];B[gd];W[lb];B[mb];W[la]
;B[gb]C[
White catches 4 stones and gets sente too. Still, this looks 
better than the game sequence to me.]))
(;W[dj]C[
This looks natural to me. What happens at the bottom?]
(;B[eq];W[er];B[fq];W[fr];B[dp];W[dr];B[gp]
;W[hp]C[This is fine for white])
(;B[er];W[dr];B[fq];W[fp];B[gr];W[hq];B[hr];W[eq];B[fr];W[eo]
;B[iq];W[dn];B[en];W[cn];B[fo];W[ep];B[go];W[br]
;B[gp]C[
This is not a disaster either, but I'd rate it better for black and  
perhaps there are lines that are worse for white.])))