Getting a grip

In the 12th and final game of the women’s world championship, a pivotal role was played by a modest knight retreat from China’s defending champion Ju Wenjun. Her immediate purpose was to restrain a dangerous passed pawn. But that simple measure set in motion a deeper plan, which challenger Lei Tingjie was unable to prevent. Ju used both her knights to establish an unshakeable central blockade, and Lei’s immobile pawns were destroyed a few moves later.

The match was a triumph of tenacity for Ju, who was outplayed by her compatriot in exemplary style in the fifth game, and trailed at the halfway point. Thereafter, play moved from Shanghai to Chongqing, where Ju seemed to gain in confidence, equalling the score in game 8. She made a particularly bold opening choice in the final game (see puzzle no. 762) although Lei had a full share of the chances until later in the middlegame.