The is not just a file. It is a gym membership for your prefrontal cortex. It is the difference between playing chess and understanding chess.
The exercises were unforgiving. The first dozen were endgame positions where a single tempo went-between victory and draw. Others began with an innocuous-looking position — a queenless middlegame, symmetrical pawns — and then, like a trapdoor, revealed a tactical motif that ate away at complacency. Sometimes the solution required a quiet move that modern engines rated as “equal”; sometimes it demanded the kind of prophylaxis coaches drone on about but players rarely practice. 1001 chess exercises for advanced club players pdf exclusive