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Ramesh, RB Improve Your Chess Calculation

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Reti, R. Modern ideas in chess

Rowson, J. Chess for Zebras

Rowson, J. The seven Deadly Chess Sins

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Sadler, M. The Silicon Road to Chess Improvement

Sadler, M. Tips for young players

Sakaev, K. The Complete Manual of Positional Chess, Opening and middlegame

Sakaev, K. The Complete Manual of Positional Chess, Volume 2, middlegame st

Schuster, T. Tips en trucs uit schaaktoernooien

Shamkovich, L. The modern chess sacrifice

Shereshevsky, M. The Shereshevsky Method to improve your chess, From club p

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Sokolov, I. Chess Middlegame Strategies, Volume 1

Sokolov, I. Sacrifice and Initiative in Chess, seize the moment to get the

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Soltis, A. What it takes to become a chess master

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