If 1st: Put Estinien down in the bottom left corner. Flichoirel will respond by putting Nael to capture Estinien. Capture Nael with Seeker of Solitude. Flichoirel will put down Godbert or Griffin on the 2nd tile. Then just take back both Estinien and Seeker by putting down Squall, and win from there. He doesn't ever deviate from this behavior.
If 2nd: A little less predictable. He always puts down Nael first either on the 2nd tile or the 8th tile, so just capture it with Seeker of Solitude and play your way around it afterwards.