411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...Nf6/4. O-O/4...Ng4
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Fishing pole variation Rio gambit
4...Ng4?! · Fishing pole variation
Black's knight forays into White's territory. This leads to a trap where Black baits White into opening the h-file.
After 5. h3 h5 sets a trap: the bait is the g4 knight, the h3 pawn is the fish, and the h5 pawn is the hook. Black appears to blunder his knight, but 6. hxg4?? hxg4 opens the h-file onto White's castled king, and attacks the f3 knight. Trying to save the knight leads to forced mate, 7. Nh2?? Qh4!. White's best recourse is to allow the knight to be captured.
White can sidestep the trap by leaving Black's knight on g4 and continuing to develop normally: 6. c3 intending d4, 6. d4, 6. Nc3 are all playable and leave White with the advantage.
The same trap can arise out of the Morphy defence, after 3...a6 4. Ba4 Nf6 5. O-O Ng4.
Theory table
.
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Ng4
5
Fishing Pole
h3h5
hxg4hxg4
Ne1Qh4
-
References
See also
Fishing Pole (chess)