(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00] PW[White]PB[Black]AW[ap][cp][dp][ep][fp][bq][fq][fr][fs]AB[cq][dq][eq][ar][br][ds][es]LB[an:0][bn:1][cn:2][dn:3][en:4][fn:5]C[FORCE how many different first moves kill this group? click on the number]PL[W] (;W[dn]CR[dn] ;B[dm]CR[dm]C[RIGHT now you can play with the options] (;W[er]CR[er] ;B[dr]CR[dr] (;W[bs]CR[bs]C[RIGHT]) (;W[cs]CR[cs] ;B[cr]CR[cr] ;W[bs]CR[bs]C[RIGHT ])) (;W[cs]CR[cs] ;B[bs]CR[bs] (;W[dr]CR[dr]C[RIGHT]) (;W[er]CR[er] ;B[dr]CR[dr] ;W[cr]CR[cr]C[RIGHT]) (;W[cr]CR[cr] ;B[dr]CR[dr])) (;W[bs]CR[bs] ;B[cs]CR[cs] (;W[er]CR[er]C[RIGHT]) (;W[dr]CR[dr] ;B[er]CR[er] ;W[cr]CR[cr]C[RIGHT]) (;W[cr]CR[cr] ;B[dr]CR[dr])) (;W[cr]CR[cr] ;B[dr]CR[dr]) (;W[as]CR[as] ;B[bs]CR[bs]) (;W[dr]CR[dr] ;B[er]CR[er] (;W[cs]CR[cs] ;B[cr]CR[cr]) (;W[cr]CR[cr] ;B[cs]CR[cs])) (;W[aq]CR[aq] ;B[cs]CR[cs])) (;W[an]CR[an]C[wrong. after getting the correct answer, you can explore options]) (;W[bn]CR[bn]C[wrong. after getting the correct answer, you can explore options]) (;W[cn]CR[cn]C[wrong. after getting the correct answer, you can explore options]) (;W[en]CR[en]C[wrong. after getting the correct answer, you can explore options]) (;W[fn]CR[fn]C[wrong. after getting the correct answer, you can explore options]))