CBM Blog: Knight Geometry and the Fourth Phase of the Game

7/5/2011 – How to get rid of the annoying pin: 70.Nxf7 or 70.Rxg5+? One move saves the day, one runs into a beautiful refutation. In his second example our endgame specialist Dr Karsten Müller explains that after the opening, middlegame and endgame, both sides can queen and start the fourth phase of the game. There's a lot to learn from these grandmaster instructions.

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Knight Geometry

How to get rid of the annoying pin: with 70.Nxf7 or with 70.Rxg5+.

Note that in the replay windows below you can click on the notation or use the cursor keys to follow the game.

The Fourth Phase of the Game

After the opening, middlegame and endgame when both sides queen the fourth phase of the game starts. Alekhine had several instructive examples. The side which can give the first check usually wins resp the side with the safer king:

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