Eating BMR to lose weight? Eating above... weight gain?

Anonymous
My BMR is about 1400 calories. I walk my dog everyday for about 30-60 min and jog 1-2 a week.
Will I gain weight if I eat above 1400 calories... around 1600 calories?
I really want to lose 2-3 kg in the next few weeks. If I carry on walking for an hr everyday and eating about 1400 calories will i lose weight?
Eating BMR to lose weight? Eating above... weight gain?
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