https://www.warlight.net/MultiPlayer?GameID=8985376Peak is at turn 29. I have 45 income, and 3 diplomacy cards to use on green. The AI's stacks becomes a problem. And then I forgot to play the D card.
Tip. Defend by not defending. Leave your borders at 1. Only attack places were the AI has 1. Attack only with 3. Get out of the center.
Clearly beatable through :)