First you find all the ones that has to be white. Then they hopefully lead to some black ones. Around the black ones you must have white squares. After that you make white everything that can be white. Then I experiment with the remaining numbers.
Posted 13th Aug 2017 at 03:50 Last edited by mazilora 13th Aug 2017 at 03:50
elo15, that's how I start. The next parts are "shape"--you can't trap a corner (or section) in black, so if you have 2 diagonal squares on the corner and on is black, the other must be white. You can then use this for trapped diamonds (can't have 4 black surrounding a white square), or even whole sections. You can also use a sort of inverse rule--if there's nothing to make a number black (e.g. it's unique in its row and column), then it must be white.
Posted 14th Aug 2017 at 01:22
elo15 Daily subscriber Rated puzzle: Moderate Completion time: 9:08 Used 'check puzzle' when incorrect
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Last edited by elo15 11th Aug 2017 at 01:45
After that you make white everything that can be white.
Then I experiment with the remaining numbers.
Last edited by mazilora 13th Aug 2017 at 03:50
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