How does the coverage solver pick moves?

It loads the Pokémon's learnset, keeps damaging moves (skipping self-KO and one-hit KO moves), picks the best move per type by effective power (base power weighted by accuracy, STAB, the stronger attacking stat and charge-turn penalties), then scores every four-type combination against the 162 mono and dual type combinations in the dex.

Can I limit it to one game?

The generation filter restricts results to moves the Pokémon can learn in that generation, from Gen 1 through Gen 9.

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Coverage solver.

solves every C(n,4) move-type set in the real learnset
scored against 162 dex type combos · neutral coverage breaks ties

Target movepool

Generation · restricts the learnset and the move data

Pool after filter

0 moves

0 attacking types

Best set · hit 2× or more--/162

Loading learnset data

Pokémon coverage solver

Instead of guessing at type coverage by trial and error, this solver tests every legal combination from a Pokémon's actual learnset and tells you which 4 move types hit the most opponents super-effectively. It scores against the 162 mono and dual type combinations that real Pokémon actually have, so a hole against Water/Ground or Steel/Fairy shows up even when all 18 single types look covered.

The average Pokémon learns 77 moves, but outliers like Mew can learn up to 375. Manually comparing all possible type groupings from a pool that large would take hours. The solver does it in milliseconds.

How the solver works

Loads the Pokémon's full learnset and keeps only damaging moves, skipping self-KO moves like Explosion and one-hit KO moves
Picks the best move per type by effective power: base power weighted by accuracy, STAB, the Pokémon's stronger attacking stat, and a penalty for charge or recharge turns, so Thunderbolt beats Thunder and Body Slam beats Explosion
Generates all C(n, 4) combinations of unique attacking types
Scores each combination against every type combination that appears in the dex, counting super-effective, neutral, resisted, and immune matchups
Ranks by super-effective count first, then by total "at least neutral" coverage

Generation filtering

Not every move is available in every game. Use the generation filter to restrict results to moves your Pokémon can actually learn in a specific title - from Gen 1 (Red/Blue) through Gen 9 (Scarlet/Violet). The filter also applies that generation's historical move data, so power, accuracy, and even type reflect the era where they changed between games. Coverage is scored against the current 18-type chart.