In Stanford Wong's book, "Casino Tourament Strategy," it states that on the last hand if you have the 2nd highest chips (BR2) you should bet at least double the amount you are behind BR1 plus a chip.... My question is: what is the mathematical reasoning behind this? Could someone further explain? It's a great book but doesn't mathetmatically explain the exact reasoning of what I bolded above. Would be great if someone here can break it down for me. Thanks!