Difficult, indeed. You need to understand so much: basics, timing, assessment of the situation, vital points, etc.PeterN wrote:Invasions are a bit of a mystery to me still,
(;CA[utf-8]RU[Japanese]OT[5x30 byo-yomi]GM[1]FF[4]AP[CGoban:3]SZ[19]ST[2]DT[2013-09-24]
PC[KGS]PB[Gelya]BR[1d]PW[PeterN]WR[7k]KM[6.5]TM[1800]RE[B+Resign]MULTIGOGM[0]
;B[pd]BL[1771.57];W[dd]WL[1796.76];B[pp]BL[1735.95];W[dp]WL[1791.44];B[fq]BL[1728.89]
;W[cn]WL[1782.21];B[dr]BL[1726.5];W[cq]WL[1779.99];B[iq]BL[1724.61];W[nc]WL[1777.75]
;B[kd]BL[1721.46];W[ne]WL[1764.13];B[pf]BL[1718.86];W[pb]WL[1751.72];B[qc]BL[1716.34]
;W[kb]WL[1735.3];B[qj]BL[1713.19]
(;W[ic]WL[1705.03]LB[pb:a]C[P. I wanted to deny the lone B stone any hope of making a base...
E. One problem with this thinking is B is high -- it was not B's intention
to make a base to begin with.
If you wanted to pincer the lone B stone, you may consider a pincer
instead of (a), which would lead to a different game.
See var.]
;B[cf]BL[1705.05]LB[cd:a][fd:b]C[P. Looking at this I want to defend the corner with (a) perhaps, not sure if that's a good instinct or not.
E. (a) not so good -- a bit heavy. Probably (b) better. You can also consider a pincer.]
;W[cj]WL[1690.05];B[cc]BL[1700.95];W[cd]WL[1687.23];B[dc]BL[1698.51];W[ed]WL[1685.93]
;B[bd]BL[1697.32];W[be]WL[1684.67];B[bc]BL[1696.45];W[ce]WL[1683.64];B[fc]BL[1694.32]
;W[df]WL[1682.51];B[np]BL[1689.03];W[lq]WL[1658.53]LB[ic:a]C[P. Never sure on invasions...
E. Of course, it would have been much easier if you approached this corner much earlier, instead of (a).]
;B[mq]BL[1685.91];W[lo]WL[1653.11];B[lr]BL[1683.83];W[kq]WL[1647.76];B[kr]BL[1681.96]
;W[jo]WL[1645.41];B[ng]BL[1672.88];W[mf]WL[1637.75]C[This feels slow and submissive. The right side is getting too big -- you have to do something there now, instead.]
;B[lh]BL[1667.91];W[kg]WL[1633.03];B[kh]BL[1664.88];W[jg]WL[1630.82];B[ii]BL[1662.91]
;W[ho]WL[1617.58];B[mn]BL[1659.28];W[ej]WL[1613.29];B[fo]BL[1656.12];W[en]WL[1598.97]
;B[fn]BL[1653.32];W[em]WL[1596.82];B[fm]BL[1651.3];W[im]WL[1594.29];B[el]BL[1649.03]
;W[dl]WL[1592.66];B[dk]BL[1647.63];W[ek]WL[1590.96];B[fl]BL[1646.4];W[ck]WL[1589.53]
C[P. C8 instead?
E. ( Shape problem. ) Yes.];B[eo]BL[1644.55];W[dn]WL[1583.99]
;B[km]BL[1640.23];W[ik]WL[1577.09];B[kk]BL[1634.75];W[jj]WL[1572.87];B[jh]BL[1631.98]
;W[kj]WL[1570.14];B[lk]BL[1630.59];W[lj]WL[1568.96];B[mj]BL[1628.83];W[gj]WL[1556.83]
;B[ig]BL[1626.76];W[if]WL[1553.82];B[hf]BL[1622.85];W[hg]WL[1548.95];B[ih]BL[1620.86]
;W[he]WL[1547.85]C[Shape problem.];B[lf]BL[1615.28];W[lg]WL[1540.45];B[jf]BL[1613.5]
;W[mg]WL[1528.42];B[ie]BL[1610.82]
(;W[mh]WL[1522.53]C[See var.];B[ni]BL[1607.15];W[nh]WL[1520.94];B[oh]BL[1605.4]
;W[og]WL[1512.49];B[pg]BL[1602.94];W[of]WL[1510.76];B[oe]BL[1601.09];W[nf]WL[1508.66]
C[Get a feeling that this sequence is bad for you --
you captured 1 stone in gote -- surely, many other moves are much bigger.]
;B[hd]BL[1596.7];W[ge]WL[1507.09];B[id]BL[1590.73];W[jc]WL[1504.98];B[gc]BL[1588.67]
;W[qn]WL[1488.8];B[qo]BL[1586.26];W[pn]WL[1485.04];B[ro]BL[1583.08];W[ql]WL[1481.06]
;B[rk]BL[1579.95];W[rl]WL[1479.06];B[ok]BL[1574.09];W[oi]WL[1474.94];B[ph]BL[1572.07]
;W[nj]WL[1473.22];B[mi]BL[1570.36];W[mk]WL[1467.42];B[li]BL[1569.02];W[nk]WL[1463.45]
;B[ol]BL[1566.77];W[mm]WL[1437.91];B[ln]BL[1535.74];W[nm]WL[1429.03];B[lm]BL[1524.32]
;W[nn]WL[1421.21];B[mo]BL[1521.29];W[qk]WL[1417.94];B[rj]BL[1507.87];W[oj]WL[1414.04]
;B[pj]BL[1506.32];W[pk]WL[1412.5];B[ml]BL[1499.19];W[nl]WL[1409.78];B[oo]BL[1476.63]
;W[rn]WL[1403.94];B[sm]BL[1472.24];W[rm]WL[1389.41];B[hk]BL[1458.14];W[hl]WL[1320.05]
;B[gk]BL[1456.1];W[jq]WL[1311.24];B[ip]BL[1453.11];W[io]WL[1298.07];B[jl]BL[1444.93]
;W[il]WL[1286.56];B[gm]BL[1437.8])
(;W[nh]C[Locally, at least here, yes ?]))
(;W[nq]))
PC[KGS]PB[Gelya]BR[1d]PW[PeterN]WR[7k]KM[6.5]TM[1800]RE[B+Resign]MULTIGOGM[0]
;B[pd]BL[1771.57];W[dd]WL[1796.76];B[pp]BL[1735.95];W[dp]WL[1791.44];B[fq]BL[1728.89]
;W[cn]WL[1782.21];B[dr]BL[1726.5];W[cq]WL[1779.99];B[iq]BL[1724.61];W[nc]WL[1777.75]
;B[kd]BL[1721.46];W[ne]WL[1764.13];B[pf]BL[1718.86];W[pb]WL[1751.72];B[qc]BL[1716.34]
;W[kb]WL[1735.3];B[qj]BL[1713.19]
(;W[ic]WL[1705.03]LB[pb:a]C[P. I wanted to deny the lone B stone any hope of making a base...
E. One problem with this thinking is B is high -- it was not B's intention
to make a base to begin with.
If you wanted to pincer the lone B stone, you may consider a pincer
instead of (a), which would lead to a different game.
See var.]
;B[cf]BL[1705.05]LB[cd:a][fd:b]C[P. Looking at this I want to defend the corner with (a) perhaps, not sure if that's a good instinct or not.
E. (a) not so good -- a bit heavy. Probably (b) better. You can also consider a pincer.]
;W[cj]WL[1690.05];B[cc]BL[1700.95];W[cd]WL[1687.23];B[dc]BL[1698.51];W[ed]WL[1685.93]
;B[bd]BL[1697.32];W[be]WL[1684.67];B[bc]BL[1696.45];W[ce]WL[1683.64];B[fc]BL[1694.32]
;W[df]WL[1682.51];B[np]BL[1689.03];W[lq]WL[1658.53]LB[ic:a]C[P. Never sure on invasions...
E. Of course, it would have been much easier if you approached this corner much earlier, instead of (a).]
;B[mq]BL[1685.91];W[lo]WL[1653.11];B[lr]BL[1683.83];W[kq]WL[1647.76];B[kr]BL[1681.96]
;W[jo]WL[1645.41];B[ng]BL[1672.88];W[mf]WL[1637.75]C[This feels slow and submissive. The right side is getting too big -- you have to do something there now, instead.]
;B[lh]BL[1667.91];W[kg]WL[1633.03];B[kh]BL[1664.88];W[jg]WL[1630.82];B[ii]BL[1662.91]
;W[ho]WL[1617.58];B[mn]BL[1659.28];W[ej]WL[1613.29];B[fo]BL[1656.12];W[en]WL[1598.97]
;B[fn]BL[1653.32];W[em]WL[1596.82];B[fm]BL[1651.3];W[im]WL[1594.29];B[el]BL[1649.03]
;W[dl]WL[1592.66];B[dk]BL[1647.63];W[ek]WL[1590.96];B[fl]BL[1646.4];W[ck]WL[1589.53]
C[P. C8 instead?
E. ( Shape problem. ) Yes.];B[eo]BL[1644.55];W[dn]WL[1583.99]
;B[km]BL[1640.23];W[ik]WL[1577.09];B[kk]BL[1634.75];W[jj]WL[1572.87];B[jh]BL[1631.98]
;W[kj]WL[1570.14];B[lk]BL[1630.59];W[lj]WL[1568.96];B[mj]BL[1628.83];W[gj]WL[1556.83]
;B[ig]BL[1626.76];W[if]WL[1553.82];B[hf]BL[1622.85];W[hg]WL[1548.95];B[ih]BL[1620.86]
;W[he]WL[1547.85]C[Shape problem.];B[lf]BL[1615.28];W[lg]WL[1540.45];B[jf]BL[1613.5]
;W[mg]WL[1528.42];B[ie]BL[1610.82]
(;W[mh]WL[1522.53]C[See var.];B[ni]BL[1607.15];W[nh]WL[1520.94];B[oh]BL[1605.4]
;W[og]WL[1512.49];B[pg]BL[1602.94];W[of]WL[1510.76];B[oe]BL[1601.09];W[nf]WL[1508.66]
C[Get a feeling that this sequence is bad for you --
you captured 1 stone in gote -- surely, many other moves are much bigger.]
;B[hd]BL[1596.7];W[ge]WL[1507.09];B[id]BL[1590.73];W[jc]WL[1504.98];B[gc]BL[1588.67]
;W[qn]WL[1488.8];B[qo]BL[1586.26];W[pn]WL[1485.04];B[ro]BL[1583.08];W[ql]WL[1481.06]
;B[rk]BL[1579.95];W[rl]WL[1479.06];B[ok]BL[1574.09];W[oi]WL[1474.94];B[ph]BL[1572.07]
;W[nj]WL[1473.22];B[mi]BL[1570.36];W[mk]WL[1467.42];B[li]BL[1569.02];W[nk]WL[1463.45]
;B[ol]BL[1566.77];W[mm]WL[1437.91];B[ln]BL[1535.74];W[nm]WL[1429.03];B[lm]BL[1524.32]
;W[nn]WL[1421.21];B[mo]BL[1521.29];W[qk]WL[1417.94];B[rj]BL[1507.87];W[oj]WL[1414.04]
;B[pj]BL[1506.32];W[pk]WL[1412.5];B[ml]BL[1499.19];W[nl]WL[1409.78];B[oo]BL[1476.63]
;W[rn]WL[1403.94];B[sm]BL[1472.24];W[rm]WL[1389.41];B[hk]BL[1458.14];W[hl]WL[1320.05]
;B[gk]BL[1456.1];W[jq]WL[1311.24];B[ip]BL[1453.11];W[io]WL[1298.07];B[jl]BL[1444.93]
;W[il]WL[1286.56];B[gm]BL[1437.8])
(;W[nh]C[Locally, at least here, yes ?]))
(;W[nq]))