Pokémon Generation I Dual Type Effectiveness Charts/Rock

This is designed to list the type effectiveness of Generation I Pokémon moves against Pokémon that have Rock as their first type.

Type 1	Type 2
		1×	1×	2×	1×	½×	½×	1×	1×	0×	2×	½×	½×	1×	2×	2×
		1×	1×	0×	2×	½×	½×	1×	4×	2×	2×	½×	¼×	1×	½×	4×
		1×	1×	2×	2×	1×	½×	1×	4×	2×	½×	½×	½×	1×	1×	1×