FIELD TEST 01 / 03

The Little Crossing

A single well-placed brace can save the day.

CHALLENGE

Engineering workbench • CLICK / TAP TO SNAP

VIEW

LIVE LOAD TRACE

1 UNIT SNAP · PIN + ROLLER

Tap one joint, then another to add steel.Drag joints in Move mode

1–4 tools↑↓←→ cursorEnter actDel eraseCtrl+Z undoTouch: tap to connect, drag to move

Material allowance

ON BUDGET

0 / 24 steel

24 units remainingJoint 2 • beam ⌈length⌉

SPAN
6

CART LOAD
1.0

BEST SCORE
—

Your assignment

Connect the missing brace

Complete the center triangle, then send the cart across.

Tap the glowing lower joint.

Force inspector

READY

Tension Compression Overload Low force

Select a member or run a test to see its force. Glowing colors trace how loads reach the cliffs.

Nothing selected. Tap a beam to inspect it in Move mode, or use the keyboard cursor and Enter.

Hints reveal one workable arrangement. You can invent your own.

PLAY MODEL: Simplified 2D elastic deck with pin-jointed axial braces and a left pin/right roller. Cart positions are solved quasi-statically in arbitrary game units. No dynamic impacts, realistic joint failures, wind, foundation behavior, or full buckling analysis. This is a learning game, never a real bridge design tool.