(;SZ[7]TR[ad]TR[bd]TR[cd]TR[dd]TR[dc]TR[db]TR[da]TR[ed]TR[fd]TR[gd]AB[ab]AB[bc]AW[bb]AW[ba]AB[fb]AB[fa]AW[eb]C[These are two boards. (3x3x2) Bigger boards than Mr. :go's 22363 (2x2x2)!FORCE]AP[goproblems]
(;B[cb]TR[cd]TR[bd]TR[ad]TR[dd]TR[dc]TR[db]TR[da]TR[ed]TR[fd]TR[gd]C[FORCE];W[fc]TR[dd]TR[dc]TR[db]TR[da]TR[cd]TR[bd]TR[ad]TR[ed]TR[fd]TR[gd]C[FORCE]
(;B[gb]TR[dd]TR[dc]TR[db]TR[da]TR[cd]TR[bd]TR[ad]TR[ed]TR[fd]TR[gd]LB[eb:X]LB[fc:X]C[Black wins.RIGHT])
(;B[ea]TR[dd]TR[dc]TR[db]TR[da]TR[cd]TR[bd]TR[ad]TR[ed]TR[fd]TR[gd]C[ko. After this, wG6, bE5, and wA7 or wC7, so ko threats battle, then it's a tie game! ]LB[eb:X]LB[fc:X])
(;B[ga]TR[dd]TR[dc]TR[db]TR[da]TR[cd]TR[bd]TR[ad]TR[ed]TR[fd]TR[gd]C[Seki.])
(;B[gc]TR[dd]TR[dc]TR[db]TR[da]TR[cd]TR[bd]TR[ad]TR[ed]TR[fd]TR[gd]C[FORCE];W[gb]TR[dd]TR[dc]TR[db]TR[da]TR[cd]TR[ad]TR[bd]TR[ed]TR[fd]TR[gd]LB[gc:X]C[White captures the marked stone X.]))
(;B[ca]TR[dd]TR[dc]TR[db]TR[da]TR[cd]TR[bd]TR[ad]TR[ed]TR[fd]TR[gd]LB[bc:X]LB[ab:X]LB[ca:X]C[White wins on the left board.])
(;B[cc]TR[dd]TR[dc]TR[db]TR[da]TR[cd]TR[bd]TR[ad]TR[ed]TR[fd]TR[gd]C[FORCE];W[cb]TR[dd]TR[dc]TR[db]TR[da]TR[cd]TR[bd]TR[ad]TR[ed]TR[gd]TR[fd]LB[cc:X]LB[bc:X]LB[ab:X]C[White wins on the left board.]))