sudoku.com solver

solver.js

function solve() {
    const notesButton = document.querySelector('.game-controls-item.game-controls-pencil');
    notesButton.dispatchEvent(new Event('mousedown'));
    notesButton.dispatchEvent(new Event('mousedown'));
    
    const game = JSON.parse(localStorage.getItem('main_game'));
    const solution = game.solution;
    const values = game.values.map(value => value.editable);

    const keyCodes = { '1': 49, '2': 50, '3': 51, '4': 52, '5': 53, '6': 54, '7': 55, '8': 56, '9': 57 };
    
    window.dispatchEvent(new Event('focus'));
    
    for(let i = 1; i <= 81; i++) {
        if (values[i - 1]) {
            window.dispatchEvent(new KeyboardEvent('keydown', {'keyCode': keyCodes[solution[i - 1]]}));
        }
        
        if (i != 81 && i % 9 === 0) {
            window.dispatchEvent(new KeyboardEvent('keydown', {'keyCode': 40}));
            
            for (let j = 0; j < 9; j++) {
                window.dispatchEvent(new KeyboardEvent('keydown', {'keyCode': 37}));
            }
        } else {            
            window.dispatchEvent(new KeyboardEvent('keydown', {'keyCode': 39}));
        }
    }
}