AdvancedPractice
Practise: Rule of 45 across several units
This Killer puzzle stalls at exactly the point where Rule of 45 across several units is needed. Work it out yourself, or jump straight to that position.
Skip the obvious cells and start where the technique matters.
Practice
Mistakes0Score2,000Time0:00
How to spot it
Look for two or three adjacent units where the cages are largely contained. Add the contained cage sums, compare with the multiple of 45, and the difference belongs to the few crossing cells.
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Where you will meet it
Expert grids are the only place this pattern regularly decides the solve. Bring your notes.
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Type the position into the solver and it walks the whole solution, naming the technique behind every step — including this one.
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