14 Minesweeper Variants 2 Episode 30 - Zero-Sum Part 2

The last few zero-sums end up taking about 56-57 minutes, and so I only manage to complete 2 5x5 boards of the next variant, group prime. Group prime is the last bonus variant, and I think I will move on to plus prime next, and since there are a lot of those, that will take awhile.

14 Minesweeper Variants 2 Series:
Previous Episode: https://rumble.com/v591h98-14-minesweeper-variants-2-episode-29-zero-sum.html
Next Episode: https://rumble.com/v59t7v1-14-minesweeper-variants-2-episode-31-group-prime.html
Episode 1 (with links to all other episodes): https://rumble.com/v5529im-14-minesweeper-variants-2-episode-1-horizontal-cross-and-connected.html