Practical Position 21

Credit to Mark Dvoretsky for the puzzle.

This is a puzzle from Jacob Aagaard's book "Excelling at Positional Chess". Karpov vs Portisch ...

Thanks to Jacob Aagaard for this chess puzzle, taken from his book "Excelling at Chess Calculation" Aagaard v Johanssen.

Thanks to Afek and Neimann for this puzzle, from their book "Invisible Chess Moves" Sutovsky v Kamsky.

Position

This is a puzzle from Jacob Aagaard's book "Excelling at Chess Calculation" ...

Salov vs Lautier. Thanks to Jacob Aagaard and his book Excelling at Positional Chess for this puzzle.

Thanks to Andrei Volokitin and Vladimir Grabinsky for this puzzle from his book "Perfect Your Chess" ...

Thanks to Axel Smith for this puzzle from his book "Pump Up Your Rating" ...

Thanks to Jacob Aagaard for this chess puzzle, taken from his book "Excelling at Chess Calculation"

This is a puzzle from Paata Gaprindashvili's exciting book "Imagination in Chess" Q7/1Bkp4/3q1np1/1p5r/3p4/P5P1/5P2/4R1K1 w ...