Vibe Coding solved a problem that I couldn't resolve for two and a half years. In January 2023, I wanted to know what the win rate of the card game Easthaven is on Ubuntu. When I played manually, it was less than 10%. My previously written greedy algorithm program had a win rate of 7.8%, but today I used Qwen Code and implemented a mixed strategy of greedy and Monte Carlo tree, which improved it to over 15%. It perfectly answered my question from two and a half years ago. AI is freaking amazing.