Anchors and belays

SERENE as checks, not a slogan

• Solid — each piece would hold if it were the only one.
• Equalized — the stance shares load in the direction it will actually see.
• Redundant — two independent paths. One locker, one cord, one bolt is not two paths.
• Efficient / timely — built before you are too pumped to think.
• No extension — if one piece fails, the other does not shock-load through a long sling.

ERNEST is the same list in a different order. If a check fails, the acronym did not save you.

Multi-directional solo start

1. Assume the first fall yanks the anchor up, toward the first piece.
2. Place or choose pieces that hold that direction: opposing cams, a bolt plus a piece that cannot lift, a tree you can girth that will not pluck.
3. Two or more independent points. Three if anything is marginal.
4. Tie the rope end to the master point. The Jesus piece goes in within 1–2 m so you are not looking at a factor-2 onto this stance.
5. Weight-test the upward direction before you leave the ground if you can do it without wrecking the placements.

When a sliding-X is the wrong tool

A sliding-X equalizes until one piece fails, then it extends. On a solo start that extension is a bigger fall onto the remaining piece — often the one that was already worse. Use a pre-equalized cordelette or a quad if you need two pieces and cannot accept extension. A sliding-X with limiter knots is a compromise, not a default.

Sport two-bolt anchors for lowering are a different problem — see Trad and sport. Wall stances that also hold a pig and a ledge need labeled, independent points — see Hauling.