Ruy Lopez Zaitsev
Black's complete repertoire in the Ruy Lopez Zaitsev Variation (9...Bb7). Ten drills cover the classical mainline 12.a4 h6, Karpov's 12.a3 knight regrouping, the closed 12.d5, Romanishin's 11.c4, the Anti-Zaitsev 10.d3, the 11.Ng5 repetition try, the early 11.a4 flank, 12.Nf1 with the Chigorin-style ...Na5/Nc4, 12.Bc2 with a kingside fianchetto, and the modern 12.a4 exd4 break.
The Zaitsev Variation (9...Bb7) was Karpov's lifelong weapon and the principled answer to the Closed Ruy Lopez: the bishop hits e4 along the long diagonal while ...Re8/Bf8 builds maximum pressure on the centre. This pack drills every modern White try: the classical mainline 12.a4 h6 with ...exd4 ...Nb4, Karpov's restrained 12.a3 knight regrouping, the closed 12.d5, Romanishin's space-grabbing 11.c4, the Anti-Zaitsev 10.d3, the famous 11.Ng5 repetition try, the early 11.a4 flank push, 12.Nf1 with a Chigorin-style ...Na5/Nc4 manoeuvre, 12.Bc2 with a King's Indian-style fianchetto, and the modern 12.a4 exd4 break. Forty exam positions sharpen the rook lifts, knight tours, and pawn breaks so you reach a rich Zaitsev middlegame fully prepared.