Lock Number

Lock Description

5-35

Primitive

40-75

Rudimentary

80-115

Very Basic

120-155

Easy

160-195

Simple

200-235

Fairly Simple

240-275

Tricky

280-315

Somewhat Difficult

320-355

Moderately Difficult

360-395

Difficult

400-435

Very Difficult

440-475

Intricate

480-515

Very Intricate

520-555

Extremely Difficult

560-595

Absurdly Difficult

600-635

Extremely Complicated

640-675

Amazingly Well-Crafted

680-715

Masterfully Crafted

720-755

Incredibly Intricate

760-795

Masterfully Intricate

800-835

Amazingly Difficult

840-875

Unbelievably Intricate

880-915

Astoundingly Complex

920-955

Unbelievably Complicated

960-995

Unbelievably Complicated

1000+

Unbelievably Complicated