SANTA CLARA – The 49ers’ win-loss pendulum swung back in their favor Sunday at Arizona. That yielded a “Victory Monday” day off and provided us time to answer social media questions for this Week 12 mailbag, starting with a playoff race preview:

Cam, how many wins will SF need to get into the playoffs and do you see that happening? (@michael_budd)

At 7-4, three more wins might be enough for the 49ers, but four should lock up a playoff berth.

Most important for tiebreaker purposes are NFC games, and only three remain and all are at home: Monday against Carolina (6-5), Dec. 28 against Chicago (7-3) and the Week 18 finale against Seattle (7-3). If they only win two of those, then claim two of three at Cleveland, against Tennessee and at Indianapolis, they should be in good shape.

Since th

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