You see an empty chess board. As you solve the exercise, you input moves, but the pieces only appear for a split second after each move to confirm your visual accuracy, forcing you to maintain the position in your "mind's eye."
Erwich’s puzzles are – they look like real games, with multiple candidate moves and traps for the attacker. Solving them rewires your brain to spot counter-tactics , not just one-move winners. 1001 chess exercises for advanced club players pdf
: Finding surprising intermezzos in forcing variations. You see an empty chess board
Once you finish the thematic section, start the "Mixed" section (puzzles 601-1001). Do these at the end of a long day when you are tired. Why? Because in real tournament chess, you are exhausted at move 40. Learning to find tactics under fatigue is a superpower. : Finding surprising intermezzos in forcing variations