Recent Instance of Underpromotion

The World Junior Championship is also going on. In a very recent game, between Dmitry Andreikin and Matas Narmontas, the following position was reached:








With White to play, White showed alertness by underpromoting 67. b8=N+, giving him decisive advantage. If White had promoted to a queen, then Black can swipe it off the board by 67. ... Ra1+ K moves 68. Rb1+ K moves 69. RxQ with about an equal position.