Sissel Kyrkjebø performing “I Know Him So Well“ from the musical Chess, with American singer and actress Judy Kuhn at a concert in Skellefteå, Sweden in 1989. In this duet, two women – Svetlana (Sissel), the Russian chess champion's estranged wife, and Florence (Kuhn), his mistress – express their bittersweet feelings for him and at seeing their relationships fall apart.
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