... by: Norman Powell
AS's solver finds 5 eliminations by Forcing Network, these are indicated in the following description. The order they are found is different.Solved by Forcing Networks and Complimentary Forcing Networks:
Forcing Networks Pass 1:
Eliminate 2F1 [1st Found by AS], 5F3, 2G5 [2nd Found by AS].
Forcing Networks Pass 2:
Eliminate 9A5 [4th Found by AS], 2B6 [5th Found by AS], 7C9, 3D1, 2E6, 6F1, 6F4 [3rd Found by AS, last to be found in this ordering], 3F7, 8F7, 4H8.
3D Medusa Rule 3: Both Colours in Cell H1, eliminate other possibilities.
Confined to Box: 2 is confined to Row 7 and Box 7, eliminate other 2's in Row or Box.
Forcing Network Pass 3:
Eliminate 3A3, 3A4, 8A5, 3A6, 1B2, 5B5, 8B5, 3B6, 6B6, 7B6
Complimentary Forcing Networks: Possibilities Forced to Same State when Value 6 in Cell C1 is ON or OFF - Eliminate: 6D2, 6D5, 6D9
Eliminate: 8C2, 8C5, 8C7,
1D2 has to be ON, eliminate other possibilities in D2
Eliminate: 2D2, 6D2, 9D2, 1D5, 2D5, 6D5, 6D9, 6E2, 9E4, 9E6, 1F2, 1F3, 7F3, 1F4, 2F4, 7F4, 8F4, 1F5, 7G2, 9G2, 1G5, 9G5, 1G9, 3G9, 8G9, 5H3, 1H4, 9H6, 8H7, 9J5, 6J9.
Completed with five passes through solved cells.