Deep-dive chess reviews with teacher-board annotations, a coach that answers anything, and puzzles built from your own mistakes.
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Black’s rook has just moved to h8, and White’s bishop on e3 is the least active piece. Moving the rook from e1 to g1 puts it on the half-open g-file and protects the rook on c1, but it overlooks Black’s reply 42...Rh5.