(;AB[ab]AB[bb]AB[cb]AB[cc]AB[dc]AB[dd]AB[ee]AB[ef]AB[fd]AB[gd]AB[gb]AW[bc]AW[bd]AW[ce]AW[de]AW[cg]AW[db]AW[ec]AW[ed]AW[fb]AW[hb]AW[hc]AW[jb]AB[gf]AP[goproblems] (;B[fa];W[gc] (;B[eb] (;W[ea];B[fc];W[ga];B[eb];W[ec]C[RIGHT]) (;W[fc];B[da]C[RIGHT])) (;B[fc];W[eb];B[da];W[ga])) (;B[gc];W[ga];B[fc];W[eb]C[It's a usual problem from Cho Chikun Encyclopedia of Life&Death-advanced, but I used a lot of time for find solution. And I not found this problem in this site so diceded adding.Lets connect some bad group to main forces...]) (;B[ga];W[gc];B[fc];W[eb];B[da];W[ha]) (;B[da];W[eb];B[ga];W[gc];B[fc];W[ha]) (;B[ea];W[eb];B[gc];W[ga];B[fa];W[da];B[fa];W[ea];B[ca];W[ha]) (;B[eb];W[ea];B[fc];W[eb];B[ga];W[gc];B[ca];W[ha]) (;B[fc];W[eb];B[gc];W[ga]))