Stronghold Triangulator

Two Ender Eye throws (F3+C position and facing angle) triangulated to an estimated stronghold chunk.

JavaScript is turned off. Stronghold Triangulator runs entirely in your browser, so it needs JavaScript to calculate. What it does: Triangulate a Minecraft stronghold from two Ender Eye throws (F3+C position and facing angle). Free, instant chunk-coordinate estimate. Everything below this notice that explains the method is still readable.

Tip: the further apart your two throw positions are, the more accurate the estimate — a short baseline amplifies small errors. The angle also has to be precise; even half a degree off on the F3 yaw reading can shift the result by dozens of blocks over distance.

THROW 1

Angle (F3 facing, yaw)

THROW 2

Angle (F3 facing, yaw)

ESTIMATED STRONGHOLD

X 115, Z 200

Chunk coordinates(7, 12)

Exact intersectionX 115.47, Z 200

Travel here, throw a 3rd eye, and re-triangulate for a tighter fix.

? How this is calculated

Each throw defines a ray from (X, Z) heading in its F3 facing direction (yaw 0° = south/+Z, 90° = west/−X, 180° = north/−Z, 270° = east/+X). The stronghold is estimated where the two rays cross. Real eye trajectories have a little vertical arc and randomness, so treat this as an estimate: for best accuracy, throw from two points 100+ blocks apart, then move close to the estimate and throw once more to refine it. Chunk coordinates are the intersection divided by 16 (rounded down) — strongholds are large, multi-chunk structures, so landing in the right chunk is normally enough to start digging.