3^4 Fewest Moves (computer assisted) in 122 STM by Andrew Farkas + Luna Harran

This solve used robodoan, a new computer search program by Andrew Farkas for computer-assisted 3^4 FMC.

We completed this solve in 4 stages:

F2L (63 STM, automatic) - We generated 5 scrambles using MC4D, loaded them into robodoan (a new search program for computer-assisted 3^4 FMC) and manually reviewed several of the generated solutions. The shortest F2L solution was 61 STM, but it had a poor OLC. We found one that was 63 STM and had a decent OLC (orient last cell).
OLC (21 STM, manual) - We solved OLC using 2 algorithm executions, including a slice RKT-canceled fat sune and a 6-move 4D OLC algorithm.
2cPLC (8 STM, manual) - We solved 2cPLC (permute last cell) using an adjacent 3-cycle that canceled into the last OLC algorithm.
PLC (30 STM, computer-assisted) - We entered the final cube state into Cube Explorer to get a 3D solution and then manually found a decent RKT-cancel for it.

Solver	Andrew Farkas + Luna Harran
Puzzle	3^4 (no filters, no macros, computer-assisted)
Time	-
Move count	122
Solve date	2025-09-23
Upload date	2025-10-22
Program	Hyperspeedcube 1
Log file	2025-09-24_computer_assisted_fmc_wr_122stm_andrew_farkas_and_luna_harran.hsc
Solver notes	This solve used robodoan, a new computer search program by Andrew Farkas for computer-assisted 3^4 FMC. We completed this solve in 4 stages: F2L (63 STM, automatic) - We generated 5 scrambles using MC4D, loaded them into robodoan (a new search program for computer-assisted 3^4 FMC) and manually reviewed several of the generated solutions. The shortest F2L solution was 61 STM, but it had a poor OLC. We found one that was 63 STM and had a decent OLC (orient last cell). OLC (21 STM, manual) - We solved OLC using 2 algorithm executions, including a slice RKT-canceled fat sune and a 6-move 4D OLC algorithm. 2cPLC (8 STM, manual) - We solved 2cPLC (permute last cell) using an adjacent 3-cycle that canceled into the last OLC algorithm. PLC (30 STM, computer-assisted) - We entered the final cube state into Cube Explorer to get a 3D solution and then manually found a decent RKT-cancel for it.

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