Mark Smirnov’s second GM norm: a rook sacrifice worth studying slowly

Mark Smirnov was 14 when he earned his second grandmaster norm at the KazChess Masters in Almaty. He finished fourth and beat Grandmaster Denis Makhnev in the final round. The game’s rook sacrifice is worth replaying at the speed it takes to see what the defender could do.

Denis Lazavik won the event unbeaten on 6½/9. Chess.com reported a 25.9-point rating gain for Smirnov, who still needed another norm and further rating progress toward the title.

Give the defender a turn

Find the position before the rook offer in the game score. Cover the next few moves. If you were defending, would you take it, leave it where it is, or look for a trade? Put at least one move from each plausible option on the board before deciding which reply worries you most.

For the line where the rook is taken, list the available checks. Then look at what happens when the king moves to the square you would least like it to reach. That is often the branch worth calculating first.

Count the pieces that can reach the king

A rook is a large price to pay. Look at the pieces already in range, the lines that could open, and any defenders tied to another job. A bishop that takes two moves to get involved can be too slow if the opponent is already threatening a queen trade.

Now replay the game continuation. Compare the first move you missed with the first move you expected. A defensive resource you overlooked tells you more about your calculation than recognizing the sacrifice on sight.

Come back to the position tomorrow

Set it up again and explain the offer without reading your notes. Say what taking the rook changes and what the attacker has to prove next. If you remember the move but have forgotten the reply you were afraid of, calculate that branch again.

There’s a useful way to check whether you calculated far enough. Stop at the first position where the checks run out and look at the material again. If you’re still down a rook, identify what keeps the attack alive. If you’ve won material back, ask whose pieces are better placed in the resulting position.