A solid, updated repertoire for Black with the Old Indian Defense (1.d4 Nf6 2.c4 d6 3.Nc3 e5 / Bf5). Covers main lines, positional ideas, and traps against 1.d4, 1.Nf3, and 1.c4. Includes model games, typical plans, and replies to White's aggressive systems. Ideal for club players (1400-2200 ELO) seeking a reliable opening without heavy theory.