Hello. I'm trying to route the pcb. It contains 270 LEDs, 90 limiting resistors, 4 shift register, 9 of transistor switches and a microcontroller with strapping. For the autorouter it was an impossible task, he cannot solve it even in 6 layers. The topology of the pcb is relatively complex, but many people do and a more complicated pcb. Give me tips in order to route the pcb.
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