#2 Logic update

╔═══╦═══╦═══╗
║ 2 ║   ║   ║
║   ║   ║   ║
║   ║   ║   ║
╠═══╬═══╬═══╣
║3  ║   ║   ║
║4  ║   ║   ║
║5  ║   ║   ║
╠═══╬═══╬═══╣
║   ║   ║   ║
║   ║   ║   ║
║   ║   ║   ║
╚═══╩═══╩═══╝

Ok, if there's a board like this (one column shown): ``` ╔═══╦═══╦═══╗ ║ 2 ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ╠═══╬═══╬═══╣ ║3 ║ ║ ║ ║4 ║ ║ ║ ║5 ║ ║ ║ ╠═══╬═══╬═══╣ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ╚═══╩═══╩═══╝ ``` In the last cell, 2 can ONLY be in the first column. I don't think the logic/possible calculates this. (Test Time!)