Part: Part Nine - Inflection Points: M, Q & the Zones

Yellow zone: value your chips

Pre-flop
Blinds 400 / 800 (100 ante)Pot 3,900 (4.9 BB)Your M = 13 • Yellow zoneCOA♠Q♠● 27,300 (34.1 BB)YOUyou opened to 1,800BTN● 40,000 (50 BB)Big stack3-bets 12,000 (15 BB)SB● 40,000 (50 BB)posts 400 (0.5 BB)BB● 40,000 (50 BB)posts 800 (1 BB)D

Yellow zone (M 13). You open to 1,800 with A♠Q♠ and a big stack who covers you three-bet jams all-in.

You open A♠Q♠ and a covering big stack jams over you. Best?

WhyA big stack that covers you doesn't reshove all-in light - his range is loaded with A-K and the pairs that flip with or dominate A-Q. Best case you're racing for your tournament life; worst case you're drawing thin. With M 13 there's no reason to accept that gamble - keep playing hands where you actually hold the edge.
What happensYou lay it down and keep a stack you can still maneuver with. Folding a strong-looking hand into a covering jam isn't weak - it's refusing a flip you don't need.
The Yellow zone is about protecting a still-useful stack. A-Q feels too pretty to fold, but against a jam that covers you it's a marginal flip at best - and marginal flips aren't worth your tournament when you don't have to take them.

In the Yellow zone your chips still buy you options, so don't cash them into a coin flip. Value a workable stack over the thin edge of a marginal all-in.