| Example 4: Complex Logic (a) |
| Here is an excellent example of a more complex type of logic.
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First, fill in as much of the puzzle as you can using simple logic.
That's not very much. :-) |
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Now let's look at the square circled in green.
We can see by the column clues that it must be either in a group of "1" or a group of "2".
Let's see what the two possibilities would look like.
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| This is what the puzzle would look like if that square is a "1" clue.
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| This is what the puzzle would look like if that square is part of clue 2. You can see we would have to put 3 single squares below the group of two and this is the only possible formation.
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| You can see that either way the square marked with a red dot must be in white.
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Rules:
