Sure! Here's an example of a simple Pokémon-themed chess game implemented as a single HTML file using JavaScript and enclosed in script tags:
Pokémon Chess
In this example, the chessboard is displayed using a grid layout, and each cell is represented as a `<div>` element. The Pokémon pieces are represented by unicode characters (pictograms) and placed on the board according to the initial position array provided.
Please note that this is just a basic framework and doesn't include the actual game rules or logic for the chess moves. You can add the necessary rules and logic to implement a playable Pokémon-themed chess game based on your requirements.