func getValidCoords(w *word.Word, row, col int) [][]int {
validCoords := make([][]int, 0)
for loopRow := row - 1; loopRow < row+2; loopRow++ {
for loopCol := col - 1; loopCol < col+2; loopCol++ {
if loopRow >= 0 && loopRow < b.Size() && loopCol >= 0 && loopCol < b.Size() {
if !w.ContainsCoords(loopRow, loopCol) {
validCoords = append(validCoords, []int{loopRow, loopCol})
}
}
}
}
return validCoords
}
