(;SZ[4]AB[aa]TR[ba]TR[ca]TR[da]TR[db]TR[dc]TR[cb]AB[ab]AB[cd]AB[dd]AB[bb]C[This is a handicap game on an irregular board. (The most recent person who lacks some is Mr. sf_jeff. He thought an irregular board as a normal board, and he gave me a sily comment. Does he think the triangles are meaningless? Didn't he read the problem belongs with Irregular board? If Mr. Adum hopes everything of go on this website, then he could support irregular boards, why couldn't he?)FORCE]AP[goproblems]
(;B[bc]TR[ba]TR[ca]TR[cb]TR[da]TR[db]TR[dc]LB[ac:1]LB[ad:2]LB[bd:3]LB[cc:4]C[Alive.RIGHT])
(;B[cc]TR[ca]TR[ba]TR[da]TR[db]TR[dc]TR[cb]C[.FORCE];W[bc]TR[ba]TR[ca]TR[cb]TR[da]TR[db]TR[dc]LB[bb:X]LB[ab:X]LB[aa:X]LB[dd:X]LB[cd:X]LB[cc:X]C[Dead.])
(;B[bd]TR[ba]TR[ca]TR[da]TR[db]TR[dc]TR[cb]C[.FORCE];W[bc]TR[ba]TR[ca]TR[cb]TR[da]TR[dc]TR[db]LB[bb:X]LB[ab:X]LB[aa:X]LB[dd:X]LB[cd:X]LB[bd:X]C[Dead.])
(;B[ad]TR[ba]TR[ca]TR[cb]TR[da]TR[db]TR[dc]C[.FORCE];W[bc]TR[ca]TR[ba]TR[da]TR[dc]TR[db]TR[cb]LB[bb:X]LB[ab:X]LB[aa:X]LB[dd:X]LB[cd:X]LB[ad:X]C[Dead.])
(;B[ac]TR[ba]TR[da]TR[ca]TR[db]TR[dc]TR[cb]C[.FORCE];W[bc]TR[ba]TR[ca]TR[da]TR[db]TR[dc]TR[cb]LB[ac:X]LB[ab:X]LB[aa:X]LB[bb:X]LB[dd:X]LB[cd:X]C[Dead.]))