(;GM[1]FF[4]CA[UTF-8]AP[Sabaki:web]ST[1]SZ[19]HA[0]KM[6.5]PW[UKKent]WR[6d?]PB[SISuc]BR[6d?]RE[B+R]DT[2021-06-04]PC[IGS-PandaNet]
;B[pd]
;W[dd]
;B[pq]
;W[dp]
;B[fq]
;W[qo]
;B[qm]
;W[cn]
;B[jp]
;W[pp]
;B[qq]
;W[np]
;B[oq]
;W[nn]
;B[mq]
;W[pl]
;B[fc]
;W[ec]
;B[fd]
;W[cf]
;B[jd]
;W[qf]
;B[pi]
;W[of]
;B[nd]
;W[ql]
;B[mf]
;W[oh]
;B[oi]
;W[nh]
;B[mj]
;W[lh]
;B[rl]
;W[rk]
;B[rn]
;W[sl]
;B[sm]
;W[rm]
;B[pg]
;W[ph]
;B[rl]
;W[oc]
;B[sk]
;W[od]
;B[pm]
;W[nl]
;B[om]N[Problem position]C[Black has just won a ko on the right side by ignoring white's threat to push at the circled point. Next black played the double peep. Where should white focus their attention next?]CR[od]
(;W[ll]
;B[pf]
;W[pe]
;B[qe]
;W[oe]
;B[qg]
;W[rf]
;B[re]C[In the game white focused on the centre which allowed black to return to the upper right corner and live there. The game is still playable, but it feels like white missed an opportunity.]N[Game variation]
)(;W[qi]
;B[qj]
;W[rj]
;B[ri]
;W[qh]
;B[qk]
;W[ll]N[Improvement]C[This hane is a  key move.

In this sequence black gets to strengthen their centre stones but white gains a much stronger position in the upper right corner, making a lot of points.

This sequence is also likely to be sente for white, so they can then play the game move towards the centre and treat the stones in the lower right lightly.]
))

