(;FF[4]
CA[UTF-8]
GM[1]
DT[2024-10-08]
GN[Friendly Match]
PC[https://online-go.com/review/1346672]
PB[Saber123]
PW[Wuyaya]
BR[10k]
WR[15k]
TM[600]OT[5x45 byo-yomi]
RE[W+R]
SZ[19]
KM[6.5]
RU[Japanese]

;B[qd]
;W[dp]
;B[pq]
;W[dd]
;B[oc]
;W[qo]
;B[rp]
;W[oo]
;B[nq]
;W[mp]
;B[mq]
;W[lp]
;B[cf]
;W[ce]
;B[df]
;W[fd]
;B[cn]
;W[fp]
;B[ck]
;W[bh]
;B[bf]
;W[dh]
;B[ch]
;W[ci]
;B[cg]
;W[dj]
;B[cj]
(;W[fi]
;B[bi]
;W[di]
;B[bj]
;W[ff]
;B[bd]
;W[cc]
;B[bc]
;W[cb]
;B[lc]
;W[jc]
;B[cq]
;W[dq]
;B[cp]
;W[em]
;B[qj]
;W[pk]
;B[pj]
;W[ok]
;B[oj]
;W[nk]
;B[ip]
;W[kq]
;B[gq]
;W[ho]
;B[io]
;W[hn]
;B[jq]
;W[ir]
;B[jr]
;W[kr]
;B[js]
;W[fr]
;B[gr]
;W[fq]
;B[in]
;W[lj]
;B[ko]LB[qj:B]LB[rp:A]C[This area is very important for white because it's easy to make enough space that two eyes are safely made. Right now stones a and b are undercutting your ability to have a base if you block one the other side will jump in to try and ruin your eye potential so it's harder in this situation to secure eyes. ]
(;W[jn]LB[jn:A]C[Because your base is jeopardized it means your footing to fight is impacted.  In attacking at a you are actually giving opponent more stones in area and if you need to run out later bc you can't make base then you in effect cut off your own path to escape.

If black gets to run along blue line it can lead to difficulty in fighting due to cramped living conditions. ]
(;B[im]
;W[kp]
;B[jo]
;W[km]
;B[jm]
;W[kn]
(;B[nn]
;W[no]LB[qg:C]LB[di:B]LB[fq:A]LB[qq:D]C[Red is the area white needs to play out to connect his weak groups. It is important to realise how small the blue circle is. The reason the blue circle is important is because it's small and the blue circle represents eye space or in other words your potential to make two eyes. If you can manage to connect these two weak groups a and b then you pulled at risked group out of trouble and take potential sente forcing moves away from opponent. Red is rhe area white needs to play out to connect his weak groups . It is important to realise how  .  small the blue circle is. The reason the blue circle is important is because its small abnd the blue circle represents eye space or in other words your potential to make two euyes. If you can manage to connect these two weak groups a abnd b then you have more eye potential and givetake potential sente goforcing moves away gfrom opponent . ]
;B[mn]
;W[lo]C[An old saying "if a group has 4 liberty's or less then keep an eye on it"

When a group has four liberty's or less then that's when tesuji most often happen in live games.  Those tsumego puzzles do happen in live games and usually a player can recognize them by knowing what groups have 4 or less liberty's. 

It sounds simple but it can make certain forcing moves viable which can be very important. ]
;B[kl]
;W[lm]
;B[ik]
;W[ii]
;B[hl]
;W[jl]
;B[jk]
;W[kk]
;B[ll]
;W[ml]
;B[il]
;W[hj]
;B[go]
;W[gp]
;B[gn]
;W[gm]
(;B[kj]
;W[lk]
;B[hp]
;W[hm]
;B[hr]
;W[iq]
;B[gs]
;W[ki]
;B[is]
;W[ke]
;B[og]
;W[mg]
;B[rl]
;W[ql]
;B[rm]
;W[qm]
;B[rn]
;W[ro]
;B[so]
;W[qp]
;B[qq]
;W[qn]
;B[ee]
;W[ed]
;B[fe]
;W[ge]
;B[ks]
;W[sn]
;B[sm]
;W[rq]
;B[rr]
;W[sp]
;B[rk]
;W[ne]
;B[oe]
;W[ng]
(;B[oh]LB[hn:B]LB[go:A]C[A and b both only have 2 liberty's.  Whomever strikes first wins.]
(;W[of]
;B[pf]
;W[nf]
;B[nd]
;W[nh]
;B[ni]
;W[mi]
;B[le]
;W[lf]
;B[ld]
;W[kd]
;B[el]
;W[gl]
;B[dm]
;W[en]
;B[dk]
;W[ek]
;B[fl]
;W[fm]
;B[fk]
;W[op]
;B[lr]
;W[oq]
;B[or]
;W[dn]
;B[cm]
;W[co]
;B[bo]
;W[do]
;B[cr]
;W[kb]
;B[lb]
;W[dr]
;B[jl]
;W[jj]
;B[eg]
;W[fg]
;B[eh]
;W[ei]
;B[ef]
;W[fh]
;B[np]
;W[nj]
;B[on]
;W[mo]
;B[oi]
;W[cs]
;B[bs]
;W[ds]
;B[bq]
;W[be]
;B[ae]
;W[cd]
;B[bb]
;W[ba]
;B[af]
;W[ab]
;B[ad]
;W[gk]
;B[ej]
;W[fj]
;B[ek]
;W[la]
;B[ma]
;W[ka]
;B[mb]
;W[pp]
;B[sr]
;W[pr]
;B[qr]
;W[nr]
;B[ps]
;W[mr]
;B[ls]
;W[lq]
;B[rs]
;W[sn]
;B[sq]
;W[rp]
;B[me]
;W[mf]
;B[fs]
;W[es]
;B[ac]
;W[so]
;B[kc]
;W[jb]
;B[qk]
;W[ij]
;B[ms]
;W[ns]
;B[os]
;W[jp]
;B[hq]
;W[ca]
;B[gf]
;W[aa]
;B[gd]
;W[he]
;B[gc]
;W[fc]
;B[fb]
;W[eb]
;B[gb]
;W[dc]
;B[jd]
;W[id]
;B[je]
;W[kf]
;B[ic]
;W[jf]
(;B[de]
;W[ib]
;B[dg]
;W[ag]
)(;B[ah]
))(;W[fm]
))(;B[fm]
;W[gl]
;B[en]
;W[dn]
;B[fl]
;W[gk]
;B[el]
;W[eo]
;B[fn]
))(;B[hp]
;W[hm]
;B[fm]
;W[gl]
;B[mm]
;W[ln]
;B[mk]
;W[nl]
;B[lk]
;W[kj]
;B[mj]
;W[nj]
;B[mi]
;W[ni]
;B[en]
;W[dn]
;B[el]
;W[fn]
;B[dm]
;W[co]
;B[fo]
;W[eo]
;B[fn]
;W[do]
;B[gk]
(;W[bm]
)(;W[bn]
)))(;B[kl]
;W[ll]
;B[kk]
;W[lk]
;B[lo]
;W[mn]
;B[ik]
;W[mo]C[This variation is painful for white.  Look at how many stones white played and the blue box is how many points white roughly made.This varitita is painful for white .  Look at how many white played and the blue box is how many points white made.]
))(;B[jl]
)(;B[km]
)(;B[jm]
;W[kn]
;B[hm]
;W[ln]
))(;W[qk]
;B[rn]
;W[ro]
;B[qp]
;W[sp]
;B[no]
;W[np]
;B[op]
;W[on]
;B[kp]
;W[lq]
;B[mn]
;W[ln]
;B[lm]
;W[mm]
;B[nm]
;W[nn]
;B[ml]
;W[mo]
;B[sq]
;W[so]
;B[rr]
))(;W[bj]C[This disconnected opponent so it makes the running fight more important. If your opponent can connect from underneath then they get pure profits chasing your group ]
;B[ei]
;W[di]
(;B[dk]
)(;B[eg]
;W[dk]
;B[cl]
;W[co]
;B[bo]
;W[bp]
(;B[dn]
)(;B[do]
;W[cp]
;B[em]
;W[eo]
;B[fl]
;W[eh]
;B[fh]
;W[fi]
;B[gh]
;W[fj]LB[cg:B]LB[ci:A]LB[ck:C]C[With this cut of a now both b and c groups have limited eye space and must try to gain eyes in running fight or reach safety in center. Often when running with two groups like this it's very rare that you can save both.]
))))