1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Qe2 opens the Ruy Lopez: Closed, Worrall Attack, ECO C86. Across rating levels it shows up in 29,457 recorded games — enough data to map exactly where it succeeds and where it stalls.
History and Notable Players
It arises from the Ruy Lopez, Closed Defense. On the White side, Sergei Tiviakov (25 games), Paul Keres (25 games), Nigel D Short (16 games) top the database. Notable Black exponents: Peter Lukacs (9 games), Borislav Ivkov (8 games), Dragisa Blagojevic (7 games).
Move Diversity and Theory Depth
Move choice is far from uniform in the Ruy Lopez: Closed, Worrall Attack. At 1200 Elo, the top reply is O-O, played 48.6% of the time. There are 3 other moves seeing meaningful share, and 95% of games stick to established theory. Entropy: 1.68. By 2500, b5 dominates at 87.5% of replies; only 3 viable alternatives remain and 100% of moves are theory. Entropy drops to 0.67. The narrowing is significant — strong players consolidate around a small set of best moves, while amateurs scatter across many plausible-looking options.
Common Mistakes
- Neglecting development — Extra pawn moves in the opening are tempting, especially when you "know the moves". Developing a piece each turn is the simple correction.
- Playing without a plan — Each Ruy Lopez: Closed, Worrall Attack middlegame demands a specific approach. Decide whether the position calls for attack, manoeuvre, or simplification before reaching for a move.
Practice on Chessiverse
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