Solid+contents
61volume — n. 1. Convolution, turn, contortion, whirl. 2. Book, tome. 3. Dimensions, bulk, mass, compass, body. 4. (Geom.) Solid contents. 5. (Mus.) Power, quantity, fulness …
62Ruy Lopez — a b c d e f g …
63Chess handicap — a b c d e f g h …
64Eight queens puzzle — a b c d e f g h …
65Chess960 — a b c d e f g h …
66Passed pawn — a b c d e f g h …
67Sacrifice (chess) — a b c d e f g h …
68Capablanca chess — a b c d e f g h i j …
69Benoni Defense — a b c d e f g …
70Doubled pawns — a b c d e f g h …