KGA, the Quaade Gambit


    1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Nc3

This is one of those relics from a by-gone era of chess that still turns up now and then, usually with black playing the sober 4...Nc6, instead of the more adventurous 4...g4. After 4...g4, white can try the Muzio-like 5.Bc4, or forego the knight give-away with 5.Ne5.

The tempting 7...g2+ backfires big-time for this amateur playing Henry Bird. The game ends with a beautiful Philidor's mate (is there any other kind?):  Bird Henry E vs Amateur1.

Black probably does better to exchange queens on g4 instead. Maroczy managed a draw against Pillsbury with this line, also in Game Explorer. This is a more recent example:

In a blitz game, my opponent tried the logical looking 5...d6, and after 6.Nxg4, the knight is driven back and white is rather cramped. But it's only temporary.......

Or 26...Kd7 27.Qe7#.