(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[White]PB[Black]
;B[pd]
(;AE[pd]AW[gb][hb][dc][gc][cd][ed][fd][ee][ff][gf][hf][dh][ci][cj][dj][qj][qn][pp][lq][oq]AB[fc][hc][gd][ce][fe][ge][ie][df][ef][fg][eh][di][ei][pq]LB[hb:A]C[We will learn about Hane.

Black to play

]
;W[]
(;B[ic]C[This is what we think normally.]
;W[ib]
;B[jc]
;W[if]
;B[je]
;W[hi]C[But it is too slow. You can compare with the correct one.
White has more points upper left and black is overconcentrated.])
(;B[he]LB[ib:A][ig:B]C[This is a good move, you can see A and B are miai.]
(;W[hh]
;B[ib]C[This hane makes black strong and fast.]
;W[ic]
;B[jc]
;W[hd]
;B[id]
;W[hc]
;B[jb]
;W[fb]
;B[ke]C[Black`s upper side is strong.])
(;W[ic]
;B[ig]C[Or Black can capture white`s three stones, which are important.]))
(;B[qp]C[After invasion q3 this hane is correct in this case.]
(;W[po]
;B[qr]
;W[or]
;B[ro]
;W[rn]
;B[rq]C[This is a joseki.])
(;W[qq]C[What happens if white cuts here?]
;B[pr]
(;W[qr]
;B[po]
;W[op]
;B[qo]C[White can capture two stones.
Black can reduce right side. Sometimes it is better for w. Depends on situation.])
(;W[rp]
;B[op]
;W[qo]
;B[nq]C[This must be good for B.])))
(;B[qq]C[Typical misstake.
I see often this move in tournament.]
;W[or]C[Because of this move, it is not easy to safe two stones.]
(;B[ro]
;W[rn]
;B[qo]
;W[po]
(;B[rr]
;W[qs]
;B[rs]
;W[so]C[Black is dead in this case.
But if white's position around is not strong enough, black can live.])
(;B[pr]
;W[so]
;B[rr]
;W[sq]
;B[sr]
;W[qs]
;B[ps]
;W[rs]C[Also dead shape]))
(;B[qp]
;W[qo]C[It also doesn`t work.]
;B[ro]
;W[rn]
;B[sp]
;W[rs])))
(;AE[pd]AW[ob][mc][pc][qd][qe][dl][cm][bo][fp][dq][iq]AB[kc][oc][pe][pf][qf][pj][dn][fn][co][bq]LB[ob:2][oc:1][bo:A]C[Black to play]
;W[]
(;B[nb]C[This hane is good sacrifice.]
;W[nc]
;B[od]
(;W[pb]
(;B[md]C[With this move black can block in the middle.]
(;W[mb]
;B[ld])
(;W[ld]
;B[lc]
;W[nd]
;B[mb]C[This is overplay.]
;W[ne]
;B[kd]C[White is too heavy.]))
(;B[mb]C[Black can think about this too. ]
;W[lb]
;B[lc]
;W[ma]
;B[md]
;W[na]
;B[nd]C[but black doesn`t need to give one more stone.]))
(;W[mb]C[It doesn`t work.]
;B[pb]
;W[na]
;B[qc]C[The corner is too big.]
;W[pd]
;B[rd]))
(;B[od]C[No plan.]
;W[nb]
;B[md]
;W[ld]
;B[lc]
;W[me]
;B[nd]
;W[le]C[White can cut here anytime. ])
(;B[nc]C[Typical mistake.]
;W[nb]
;B[md]
;W[lc]
;B[ld]
;W[kd]C[Cutting is strong. Black can not make a strong moyo.])
(;B[bn]C[First hane is important.]
;W[cn]
;B[dp]C[This move you have to find^^.]
(;W[bp]
;B[cp]
;W[bm]
;B[eq]C[Black takes one stone and reduce a lot lower side.])
(;W[cq]
;B[bp]C[Black can capture B5 . B is very happy with this.]))
(;B[cp]C[Typical mistake.]
;W[cn]
;B[eo]
;W[dp]
;B[do]
;W[cr]C[Black is weak and heavy. ])
(;B[bp]
;W[bn]
;B[dp]
;W[eq]C[Black`s group is still not alive.]))
(;AE[pd]AW[gc][kc][pc][jd][ld][qe][ck][cp][dp][np][pp][cq][iq][er]AB[kb][ec][lc][cd][pg][pj][qn][dq][eq][fq][fr]LB[kb:C][kc:B][lc:A][ld:D][cp:8][cq:6][dq:5][eq:7][fq:1][iq:4][er:2][fr:3]
;W[]LB[cp:8][cq:6][dq:5][eq:7][fq:1][iq:4][er:2][fr:3]C[This is one of Joseki.

]
(;B[md]C[It is difficult to think this kind of move Hane.
Very nice move!]
(;W[lb]
;B[mc]
;W[jb]
;B[le]
;W[kd]
;B[mb]
;W[ka]
;B[nf]C[Black gets all. Atari upper and lower and connect.])
(;W[mc]C[If white cuts this side.]
;B[lb]
;W[mb]
;B[ic]
;W[id]
;B[hc]
(;W[hd]
;B[gb]C[Black can connect.])
(;W[gd]C[What happens if white extends here?]
;B[hd]
;W[he]
;B[gb]
;W[fb]
;B[hb]
;W[fc]
;B[eb]
;W[fa]
;B[ge]
;W[fe]
;B[gf]LB[ja:C][jc:A][kd:B]C[This fighting is a bit diffcult. but black can live anytime. A-C. 
It's a good fight for black]))
(;W[le]
;B[jc]
;W[kd]
;B[jb]
(;W[ic]
;B[mb]C[Black has nice shape to live and white has bad shape.])
(;W[mc]
;B[lb]
;W[mb]
;B[hb]
(;W[hc]
;B[ic]
;W[id]
;B[gb]C[Black is satisfied])
(;W[gb]
;B[id]
;W[hd]
;B[ie]C[If white cuts, black can cut also.
Very good for b.]))))
(;B[mc]C[Typical misstake.]
;W[jb]
;B[md]
;W[le]
;B[me]
;W[lf]
;B[oe]C[Black is slow and pushed from behind.])
(;B[cr]
;W[br]
(;B[bs]C[This hane fits very well.]
;W[dr]
;B[cs]
(;W[ar]
(;B[bq]C[This cut you have to learn.^^]
;W[bp]
;B[fo]C[Black gets sente and jumps out here.])
(;B[es]
;W[hr]C[E1 has no plan. still not alive.]))
(;W[aq]LB[as:A]C[Sometimes white can play here for Ko later.]))
(;B[dr]LB[hr:A]C[This is too slow and not alive, if white plays at A.])))
(;AW[cc][ec][fc][kc][nc][cd][fd][de][fe][dh][pj][on][pn][qn]AB[da][cb][eb][dc][pc][dd][ed][qh][pm][np][pp][qp][kq]LB[fd:A]
(;W[]
;B[bc]C[This shape is from a pro game.]
;W[bd]
(;B[ad]C[This move is great and nice thinking.]
(;W[bb]C[If white cuts,]
;B[ce]
;W[be]
;B[ee]
;W[cf]
;B[ef]C[Black can escape.])
(;W[ee]C[This was the game.]
;B[ba]
;W[ae]
;B[ac]
;W[db]
;B[dc]LB[gb:B][be:A]C[Black lives.. after that there is a cutting point at A and a jump at B]))
(;B[bb]C[This is normal.]
;W[fb]
;B[ba]LB[fb:A][ad:B]C[You can compare with the other one.

White got the block at A and there is no cutting aji at B
]))
(;B[pk]C[Black aims to fight!]
;W[qk]
;B[ql]
;W[ok]
;B[pl]
(;W[rl]C[white to play.

This is a great move.]
(;B[rk]
;W[qj]
;B[rm]
;W[sl]
;B[sm]
;W[qm]
;B[sk]
;W[rl]
;B[ri]LB[ro:A]C[Black can connect. or A]
;W[ol]
;B[sl]
;W[om]
;B[rl]
;W[ni]C[But white has thickness and good enough.])
(;B[qj]
;W[rk]
;B[oj]
;W[pi]
;B[qi]
;W[oi]
(;B[nj]
;W[ol]C[Black 4 stones are captured])
(;B[ol]
;W[nj]
;B[nl]
;W[mn]C[White can fight well here. Black has a heavy group.])))
(;W[qj]C[No plan and slow and heavy.]
;B[rm]
;W[rn]
;B[rk]
;W[rj]LB[rk:B][rm:A]C[After A and B..]
;B[nm]C[Black can escape.]
;W[om]
;B[ol]
;W[nl]
;B[nk]))))
