(;FF[4]GM[1]SZ[19]ST[2]CA[UTF-8]AB[dn][hq][bo][co][jq][ap][cp][dp]AW[bq][cq][cn][bp][fq][br]C[Black to play.]
(;B[eq];W[er];B[fr]
;W[dq]C[The cross-cut is a "tesuji in appearance only".])
(;B[er]C[Correct];W[eq]
;B[fr]C[This steals White's base.]))
