Today we’re going to look at two important and interrelated tactical ideas which can arise from the Ruy Lopez. One of the ideas is a way for White to win material, while the other idea will win material for Black.
Suppose Black decides to chase the white bishop back with a6 and b5. Black will often do this straight away in kiddie chess. Kiddie players love to create threats in case their opponent doesn’t notice. Now if Black plays d6 there are some potential white square weaknesses around the d5 square. If Black plays Nxe4 a bishop move to d5 might fork the knights on e4 and c6, or, if the knight on c6 has moved away, the knight on e4 and the rook on a8.
Better still, a queen landing on d5 might also threaten mate on f7, backed up by the bishop on b3.
Let’s have a look at a few games to see how this works out in practice.
In our first game Black defends weakly against the Fork Trick. 8… Bd6 would also have failed because of the Qd5 idea: he should have played 8… Bxd4 instead.
Playing natural developing moves doesn’t mean you won’t lose quickly if you’re not careful. Black had to play the ugly 8… Bd6 instead. Note that if 10… Ng4 to defend f7, White just takes it off.
Black, who from his rating isn’t a bad player, comes up with a losing 6th move. He should either take on d4 or play d6 instead of Be7. This just goes to show how devastating an early d4 can be against an unwary opponent.
Again, a player with a reasonable rating plays a careless move (any other capture on move 7 would have been OK) and this time Qd5 pins and skewers everything in sight.
Another Fork Trick where Black goes wrong very quickly. This time White finds a different target: a bishop on e5. Note that, as mentioned last week, in other Fork Trick lines (7…) Bd6 is often the best move but in the Ruy Lopez it usually leads to a quick disaster. Again he should have played Bxd4 instead.
In this game White manages a record-breaking quadruple queen fork.
A typical example of a position where White wins a piece by playing Bd5.
Now for the black trap. This is sometimes known as the Noah’s Ark Trap, allegedly because the trap is as old as Noah’s Ark.
What happens is this: White plays d4 (without c3). Black trades pawns and knights on d4, forcing White to take back with the queen. Black then kicks the queen with c5, followed by c4, trapping the bishop on b3.
Study this game very carefully, paying full attention to the notes, and you’ll see how it works. Both players have to look several moves ahead to see whether or not it’s going to work and recognising the patterns will help you do this. Estonian chess great Paul Keres, who won this game, was one of the strongest players never to become world champion.