This study compares the efficiency of 3-D transient electromagnetic forward modeling schemes on the multi-resolution grid for various modeling scenarios. We developed time-domain finite-difference modeling based on the explicit scheme earlier. In this work. we additionally implement 3-D transient electromagnetic forward modeling using the backward Euler implicit scheme. https://www.ealisboa.com/mega-deal-OtterBox-Defender-Case-for-Samsung-Galaxy-S23-Ultra-top-savings/