(;AW[hd]AW[he]AW[id]AW[jd]AW[kd]AW[kc]AW[lc]AW[md]AB[le]AB[ld]AB[ke]AB[je]AB[ie]AB[if]AB[ig]AB[jg]AB[kf]AB[kh]AB[lh]AB[li]AB[lj]AW[hf]AW[hg]AW[hh]AW[ih]AW[jh]AW[ki]AW[kj]AW[kk]AW[lk]AW[kg]AW[lg]TR[md]C[This time, our mighty hero Blackura must defend the fort. Assume sente is not important and get the most points of it.]SZ[13]AP[goproblems] (;B[mj] (;W[mg]C[CHOICE] (;B[mf];W[mk] (;B[lf]C[Well done, once again !RIGHT]) (;B[me];W[hk]C[White can tenuki, black is still dead !];B[mc];W[mh];B[lb];W[kb]C[Black is all dead !]) (;B[mh];W[mi]C[Ooops !!])) (;B[lf] (;W[mk]C[CHOICE] (;B[mf]C[RIGHT]) (;B[me];W[hk]C[White can tenuki, black is still dead !];B[mc];W[mh];B[lb];W[kb]C[Black is all dead !]) (;B[mh];W[mi]C[Ooops !!])) (;W[me]C[This is a slightly worse for white.];B[mh] (;W[mk]C[];B[mf]C[The 2 stones are atari.RIGHT]) (;W[mc];B[mf]C[White has to add a stone at N3 to close the territory.RIGHT]))) (;B[mh];W[mk]C[Ooops !!]) (;B[me];W[mk] (;B[lf];W[hk]C[White can tenuki, black is still dead !];B[mc];W[mh];B[lb];W[kb]C[Black is all dead !]) (;B[mf];W[hk]C[White can tenuki, black is still dead !];B[mc];W[mh];B[lb];W[kb]C[Black is all dead !])) (;B[mk];W[me] (;B[ll];W[kl]C[This is going nowhere !!] (;B[mf];W[lf];B[mh];W[jf]) (;B[mh];W[mf]C[Black is all dead !]) (;B[lf];W[mf])) (;B[mf];W[lf];B[mh];W[jf]C[Ooops !!];B[ll];W[kl]C[This is going nowhere !!]) (;B[mh];W[ml]C[Ooops !!]) (;B[lf];W[mf]C[Ooops !!] (;B[ll];W[kl]C[This is going nowhere !!]) (;B[mh];W[jf];B[ll];W[kl]C[This is going nowhere !! Black is all dead !])))) (;W[mf]C[Trick move detected. Blackura to make even more profit.CHOICE] (;B[lf] (;W[me];B[mg]C[Not good for white !RIGHT]) (;W[mg]C[CHOICE] (;B[mh]C[Well done, once again !!RIGHT]) (;B[me];W[jf]C[Ooops !!]))) (;B[me] (;W[mk]C[This move is a mistake.] (;B[mh];W[mc]C[Only gote seki. Black survived. White must not play this way.]) (;B[mc];W[mh] (;B[lf];W[mi];B[lb];W[kb]C[This is going nowhere !! Black is all dead !]) (;B[lb];W[kb]C[This is going nowhere !!];B[lf];W[mi]C[Black is all dead !]))) (;W[mh]C[CHOICE] (;B[mc];W[mk] (;B[lf];W[mi];B[lb];W[kb]C[This is going nowhere !! Black is all dead !]) (;B[lb];W[kb]C[This is going nowhere !!];B[lf];W[mi]C[Black is all dead !])) (;B[lf];W[jf]C[Ooops !!]) (;B[mi];W[mk]C[Ooops !!]))) (;B[mh];W[mk] (;B[lf];W[me];B[mg];W[mc]C[The fort survived, but 2 points were lost during the battle (6 points instead of 8) !]) (;B[me];W[mc]C[Only gote seki. Black survived. White must not play this way.]))) (;W[mh] (;B[lf];W[mk];B[mg];W[me]C[White is gote, so this variation is slightly worse for white. RIGHT]) (;B[me];W[mk]) (;B[mf];W[mk])) (;W[me]C[This variation is only helping black. Computer should not play it.] (;B[mf];W[mk] (;B[mh];W[mc]C[RIGHT]) (;B[mg];W[mc]C[RIGHT])) (;B[mg] (;W[mf];B[lf]C[RIGHT]) (;W[mk];B[mf];W[mc]C[RIGHT])) (;B[lf];W[mg];B[mh] (;W[mk]C[];B[mf]C[The 2 stones are atari.RIGHT]) (;W[mc];B[mf]C[White has to add a stone at N3 to close the territory.RIGHT]))) (;W[mi]C[This variation is only helping black. Computer should not play it.];B[mh];W[mk];B[mf]C[RIGHT])) (;B[me];W[mh] (;B[lf];W[mg] (;B[mc];W[mj];B[lb];W[kb]C[This is going nowhere !! Black is all dead !]) (;B[mf];W[jf]C[Ooops !!]) (;B[mi];W[mj]C[Ooops !!])) (;B[mf];W[mj]C[Ooops !!]) (;B[mg];W[mf] (;B[lf];W[jf]C[Ooops !!]) (;B[mc];W[mj] (;B[lb];W[kb]C[This is going nowhere !!];B[lf];W[mi]C[Black is all dead !]) (;B[lf];W[mi];B[lb];W[kb]))) (;B[mi];W[mj]C[Ooops !!])) (;B[mi];W[mf] (;B[lf];W[mg]C[Black is all dead !!]) (;B[me];W[mc];B[mg];W[mh]C[Ko, not good enough !]) (;B[mg];W[mh]C[Ko, not good enough !])) (;B[mh];W[mg] (;B[mf];W[mj];B[lf]C[The fort survived, but 1 point was lost during the battle (7 points instead of 8) !]) (;B[mj];W[mk]C[Ooops !!]) (;B[me];W[mj]C[Ooops !!]) (;B[lf];W[mj];B[mf])) (;B[lf];W[mj] (;B[mi];W[mh]C[Ooops !!]) (;B[mh];W[me];B[mf];W[mc]C[The fort survived, but 2 points were lost during the battle (6 points instead of 8) !]) (;B[me];W[mg];B[mc];W[mh];B[lb];W[kb]C[This is going nowhere !! Black is all dead !]) (;B[mf];W[mi] (;B[mh];W[mg]C[Ooops !!]) (;B[mg]C[The fort survived, but 3 points were lost during the battle (5 points instead of 8) !])) (;B[mg] (;W[mi];B[me];W[mc]C[The fort survived, but 2 points were lost during the battle (6 points instead of 8) !]) (;W[me];B[mi];W[mk]C[The fort survived, but 2 points were lost during the battle (6 points instead of 8) !]))) (;B[mk];W[mg] (;B[mf];W[ml] (;B[mj];W[mh]C[Ooops !!]) (;B[mh];W[mj]C[N3 was quite useless. The fort survived, but points were lost during the battle !]) (;B[mi];W[mj]C[Ko, not goos enough !!])) (;B[mh];W[mj]C[Ooops !!]) (;B[mj];W[me] (;B[ll];W[kl]C[This is going nowhere !!] (;B[mf];W[lf];B[mh];W[jf]) (;B[mh];W[mf]C[Black is all dead !]) (;B[lf];W[mf])) (;B[mf];W[lf];B[mh];W[jf]C[Ooops !!];B[ll];W[kl]C[This is going nowhere !!]) (;B[mh];W[ml]C[Ooops !!]) (;B[lf];W[mf]C[Ooops !!] (;B[ll];W[kl]C[This is going nowhere !!]) (;B[mh];W[jf];B[ll];W[kl]C[This is going nowhere !! Black is all dead !]))) (;B[mi];W[me]C[Ooops !!]) (;B[me];W[mj] (;B[mf];W[mh]C[Ooops !!]) (;B[lf]C[];W[mh]C[Ooops !!]) (;B[mh];W[mi]C[Ooops !!]) (;B[mi];W[mh]C[Ooops !!]) (;B[ml];W[mh]C[Ooops !!])) (;B[lf];W[ml] (;B[mj];W[mh]C[Ooops !!]) (;B[mi];W[mj]C[Ko, not good enough !]) (;B[mh];W[mj]C[N3 was quite useless. The fort survived, but points were lost during the battle !]))) (;B[mf] (;W[mg] (;B[lf];W[mj];B[mh]) (;B[mh];W[mj];B[lf]C[The fort survived, but 1 point was lost during the battle (7 points instead of 8) !])) (;W[mj] (;B[mh]C[The fort survived, but 1 point was lost during the battle (7 points instead of 8) !]) (;B[mg];W[mi] (;B[mh];W[mk]C[The fort survived, but 2 points were lost during the battle (6 points instead of 8) !]) (;B[lf])) (;B[mi];W[mh]C[Ooops !!]))) (;B[mg];W[mj] (;B[lf] (;W[mi];B[me];W[mc]C[The fort survived, but 2 points were lost during the battle (6 points instead of 8) !]) (;W[me];B[mi];W[mk]C[The fort survived, but 2 points were lost during the battle (6 points instead of 8) !])) (;B[mi];W[mh]C[Ooops !!]) (;B[me];W[mi] (;B[lf];W[mc]C[The fort survived, but 2 points were lost during the battle (6 points instead of 8) !]) (;B[mh];W[mf]C[Ooops !!]))))