(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[White]PB[Black]AW[ih][jh][kh][ii][ki][ij][kj][ik][kk][il][jl][kl]AB[ig][jg][kg][lg][hh][lh][hi][li][hj][lj][hk][lk][hl][ll][hm][im][jm][km][lm]C[Kill the White group.]
(;B[jj]
;W[ji]
;B[jk]C[Correct!])
(;B[ji]
;W[jj]C[Incorrect.])
(;B[jk]
;W[jj]C[Incorrect.]))