Problem 21341 goproblems.com

Add / View flags +2


Author	nimbim	Created	2016-10-29
Difficulty	5 dan (history)	Source	All About Thickness by Ishida Yoshio 9D
AVG solve time	31 sec	Stars	3.5 (2 votes)
User attempts	137 / 581	Collections	Instruction Required, Handicap Game, Multiple Choice
Genre	fuseki	Your attempts	N/A
Similar problems
Created	2016-10-29
Source	All About Thickness by Ishida Yoshio 9D
Stars	3.5 (2 votes)
Collections	Instruction Required, Handicap Game, Multiple Choice
Your attempts	N/A

(;AB[dd]AB[dj]AB[dp]AB[pp]AB[pj]AB[pd]AB[kp]AW[nq]AW[qn]AB[pn]AW[pm]AB[on]AW[qq]LB[pq:A]LB[qo:B]C[A or B?]LB[nq:1]LB[kp:2]LB[qn:3]LB[pn:4]LB[pm:5]LB[on:6]MA[qq]AP[goproblems] (;B[pq];W[qp] (;B[qo];W[ro];B[po] (;W[qm]C[a joseki mistake and how to punish];B[rn];W[rp];B[om];W[rm]C[RIGHT]) (;W[rm]LB[om:B]LB[fp:A]C[A or B?CHOICE] (;B[om];W[pl] (;B[ol]TR[pq]TR[pp]TR[po]TR[pn]TR[on]TR[om]TR[ol]TR[pj]C[Black connects up the stones to build thickness, utilizing all of his stones on the board.RIGHT]) (;B[nk]C[Black connects up the stones to build thickness, utilizing all of his stones on the board.RIGHT])) (;B[fp];W[om]TR[nn];B[nn];W[nm]TR[mn];B[mn];W[qf]TR[pj]C[White is strong on the right side now, Q10 can fall under attack.]) (;B[pl]C[NOTTHIS]) (;B[ol]C[NOTTHIS]) (;B[nl]C[NOTTHIS]) (;B[nm]C[NOTTHIS]) (;B[nn]C[NOTTHIS]) (;B[eo]C[NOTTHIS]) (;B[fo]C[NOTTHIS]) (;B[go]C[NOTTHIS]) (;B[gp]C[NOTTHIS]) (;B[gq]C[NOTTHIS]) (;B[ep]C[NOTTHIS]) (;B[eq]C[NOTTHIS]) (;B[fq]C[NOTTHIS]))) (;B[pr];W[po]C[out of joseki])) (;B[qo];W[pq]C[FORCE] (;B[rn]MA[pj]C[This thickness is too close to Q10. Also, there isn't a stone on K16 to make a big moyo like in the other variation. Furthermore, White can still come out on A or B.]TR[jd]LB[kr:A]LB[mo:B]TR[qo]TR[rn]TR[pn]TR[on]) (;B[qm]MA[pj]TR[jd]LB[kr:A]LB[mo:B]C[This thickness is too close to Q10. Also, there isn't a stone on K16 to make a big moyo like in the other variation. Furthermore, White can still come out on A or B.]TR[pn]TR[on]TR[qm]TR[qo]) (;B[ro]C[This thickness is too close to Q10. Also, there isn't a stone on K16 to make a big moyo like in the other variation. Furthermore, White can still come out on A or B.]MA[pj]TR[on]TR[pn]TR[qo]TR[ro]) (;B[lq]C[The direction of play is wrong. R5 was for the right side, now you're trying to seal off the bottom. You've left a lot of aji behind for White to use.])) (;B[aa]C[NOTTHIS]) (;B[sa]C[NOTTHIS]) (;B[ss]C[NOTTHIS]) (;B[as]C[NOTTHIS]) (;B[po]C[NOTTHIS]) (;B[qp]C[NOTTHIS]) (;B[ro]C[NOTTHIS]) (;B[rp]C[NOTTHIS]) (;B[oq]C[NOTTHIS]) (;B[op]C[NOTTHIS]) (;B[pr]C[NOTTHIS]) (;B[qr]C[NOTTHIS]) (;B[or]C[NOTTHIS]))