Problem	473
Created	2001-03-26
Source	game vs dong
Rating

Difficulty	3.1 dan
Average Solve Time	40 secs
User Attempts	348 / 3378
Solve Ratio Rating	3 dan
	rating history

(;GM[1]FF[4]CA[UTF-8] SZ[19]RU[Japanese]KM[0]TM[1800,0,30,5]PW[]PB[]AB[qd][oc]AW[nc]AB[od]AW[nd][ne]AB[oe]AW[nf]AB[qi]AW[qc]AB[rc]AW[ob]AB[pb]AW[nb][qb]PL[B]LB[qb:A]C[white plays at A. how should black respond?] (;B[pc]CR[pc] ;W[rb]CR[rb]LB[pa:A]C[white should really play at A instead. but what's the correct response to this move?] (;B[ra]CR[ra] ;W[rd]CR[rd] (;B[qa]CR[qa] ;W[sc]CR[sc] (;B[re]CR[re] ;W[qe]CR[qe] (;B[qf]CR[qf] (;W[pd]CR[pd] (;B[rf]CR[rf]C[RIGHT]) (;B[rg]CR[rg]C[RIGHT]) (;B[pe]CR[pe]C[RIGHT])) (;W[rf]CR[rf] ;B[pe]CR[pe] ;W[se]CR[se] ;B[qe]CR[qe] ;W[rg]CR[rg] ;B[qh]CR[qh] ;W[rh]CR[rh] ;B[ri]CR[ri])) (;B[pd]CR[pd] ;W[rf]CR[rf]) (;B[pe]CR[pe] ;W[qf]CR[qf])) (;B[qe]CR[qe] ;W[re]CR[re] ;B[sb]CR[sb] ;W[sa]CR[sa]C[ko not best])) (;B[re]CR[re] ;W[sc]CR[sc] ;B[qa]CR[qa] ;W[qe]CR[qe] ;B[qf]CR[qf] ;W[pd]CR[pd] (;B[rf]CR[rf]C[RIGHT]) (;B[rg]CR[rg]C[RIGHT])) (;B[qe]CR[qe] ;W[sc]CR[sc]) (;B[sb]CR[sb] ;W[sc]CR[sc])) (;B[sb]CR[sb] ;W[rd]CR[rd] ;B[sd]CR[sd] ;W[re]CR[re]C[this ko is bad for black]) (;B[rd]CR[rd] ;W[pa]CR[pa]C[good for white]) (;B[sc]CR[sc] ;W[pa]CR[pa]C[good for white]) (;B[pa]CR[pa] ;W[rd]CR[rd]C[white lives]) (;B[qa]CR[qa] ;W[ra]CR[ra] ;B[pa]CR[pa] ;W[rd]CR[rd] (;B[re]CR[re] ;W[sc]CR[sc]) (;B[sc]CR[sc] ;W[sd]CR[sd] ;B[sb]CR[sb] ;W[sa]CR[sa] ;B[sc]CR[sc] ;W[re]CR[re]))) (;B[rb]CR[rb] ;W[pc]CR[pc]C[too nice for white to capture a stone]) (;B[pd]CR[pd] ;W[pc]CR[pc]C[too nice for white to capture a stone]) (;B[rd]CR[rd] ;W[pc]CR[pc]C[too nice for white to capture a stone]) (;B[qa]CR[qa] ;W[pc]CR[pc]C[too nice for white to capture a stone]) (;B[pa]CR[pa] ;W[pc]CR[pc]C[those stones are dead deady dead dead]))