Lee Jone's Sage HU system

[JDalla]

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The opposite may be true as well . That is , if your opponent is pushing with more hands than is optimal according to SAGE , then you should widen your calling requirements . Otherwise , you may need to tighten them .

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true, but this would be trickier to figure out without a long history of SNGs with villian. The pushing ranges are so wide that you would need to see some big pushes with like 32o to adjust correctly.

whereas with overfolding you can tell from an incorrect fold or two.