Problem	14471
Created	2011-01-18
Source	李昌镐 (Lee Chang-ho) 围棋手筋 第二卷 Problem 4
Rating

Difficulty	22.5 kyu
Average Solve Time	29 secs
User Attempts	2667 / 3972
Solve Ratio Rating	18 kyu
	rating history

(;AW[ar]AW[br]AW[cr]AW[dr]AW[er]AW[eq]AW[dp]AW[do]AW[dn]AW[cn]AW[bo]AB[co]AB[bp]AB[bq]AB[cq]AB[dq]AB[ep]AB[eo]AB[en]AB[em]AB[dm]AB[cl]AB[bk]AP[goproblems] (;B[bn] (;W[cp]C[CHOICE];B[cm]C[Well done!RIGHT]) (;W[ao];B[cm]C[RIGHT])) (;B[ao];W[bn] (;B[cp];W[ap]) (;B[ap];W[an]) (;B[aq];W[cp]) (;B[an];W[cp] (;B[ap];W[am]) (;B[bm];W[ap]) (;B[aq];W[ap]) (;B[am];W[ap]))) (;B[cm];W[bn] (;B[cp];W[ap]) (;B[ap];W[ao]) (;B[aq];W[cp]) (;B[ao];W[an] (;B[am];W[ap]) (;B[bm];W[ap]) (;B[ap];W[cp]) (;B[aq];W[cp]) (;B[cp];W[ap]))) (;B[bm];W[bn]) (;B[an];W[bn]))