Starting with the resistors fit them into the board r1 to r16, folding the legs as per picture will stop them falling out making them easier to solder.
Solder these in and cut the legs off so it looks like this.
Next up is the chip holder ensure you get the indent the right end.
Place batteries in and it should come to life, with the padded double sided tape stick it to the battery compartment and then to the back to make it into a stand.
Next is the button and capacitor, the capacitor should go in c3 but for photo I placed it in c2 so you could see it.
Solder these in before we move onto the LEDs.
The LEDs are simple each slot will be marked positive (long leg) and negative (short leg), the negative side is also flat as per photo, once each one is placed bend the legs to stop them falling out before soldering them.
A bit of electrical tape can tidy up the wires.
To operate hold the button in for a few seconds and a chequer board will appear hold the button in a second longer and it turns off. Press it to turn back on and if it gets stuck on a pattern or you want to start it again then press the button again.
Enjoy your game of life board.