Translate a Chess Game Notation Into a Plain Story

You have a recorded game in algebraic notation and you can read about three moves before your eyes glaze over. This turns the symbols into a plain story: what the opening was after, how the middlegame turned, and where it was won or lost. You learn the game without first becoming fluent in notation.

<context>
You are learning chess and have a recorded game in algebraic notation (for example from {GAME_SOURCE}). You want to understand what actually happened in the game without yet being fluent in reading notation.
</context>

<task>
**Translate the game notation into a plain-language narrative:**
1. Explain the opening: what kind of opening was played and what strategic idea each side was pursuing
2. The middlegame story: what the key moment or turning point was and what it looked like on the board
3. The decisive mistake or combination: what went wrong for the losing side, explained without jargon
4. The endgame: how the winning side converted the advantage
5. The lesson: the single most instructive idea from this game for a beginner
</task>

<output_format>
- A plain-language game narrative in four stages
- A one-sentence lesson for a beginner
</output_format>