Problem	10515
Created	2007-10-19
Name	Sung4
Source	english Go-Book from the 50's
Rating

Difficulty	5.4 kyu
Average Solve Time	41 secs
User Attempts	871 / 2072
Solve Ratio Rating	7 kyu
	rating history

(;AB[rr]AB[qr]AB[pq]AB[pp]AB[qn]AB[rm]AW[ro]AW[rq]AW[qq]AW[pr]AW[or]AW[nq]C[Capturing Race between these groups]TR[qr]TR[rr]TR[rq]TR[qq]AP[goproblems] (;B[rp];W[qp];B[qo];W[sp];B[sr];W[sq];B[sn]C[CHOICERIGHT]) (;B[qp];W[rp];B[so];W[sr];B[sp];W[qs];B[sn];W[rs]) (;B[sr] (;W[sq]C[NOTTHIS];B[qp];W[rp];B[sn];W[qs];B[so];W[rs];B[sp];W[ss]) (;W[rp])) (;B[qs];W[sr];B[qp];W[ps];B[rp];W[rs]))