Eg rock and ground share weaknesses to water and grass and steel and flying share resistances to grass and bug
Grass/Bug has 4x weaknesses to Fire and Flying. Ice/Bug has 4x weaknesses to Fire and Rock. Ice/Rock has 4x weaknesses to Fighting and Steel. Ice/Steel has 4x weaknesses to Fire and Fighting. Ground/Rock has 4x weaknesses to Grass and Water. Psychic/Ghost has 4x weaknesses to Ghost and Dark. Rock/Fire has 4x weaknesses to Water and Ground. Rock/Steel has 4x weaknesses to Fighting and Ground.
Fire/Steel has a 4x resistance to Grass, Ice, Bug, Steel, and Fairy.
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