What is kingambit?

King's Gambit is a chess opening that begins with the moves 1.e4 e5 2.f4. It is centuries-old, dating back to the 15th century, and has been played by many of the great chess masters in history, including Bobby Fischer and Garry Kasparov. The King's Gambit is considered a risky opening, as it involves sacrificing a pawn in exchange for aggressive development and control of the center. The opening is named after King's Bishop's Gambit, which is no longer commonly played. The King's Gambit has fallen out of favor in modern top-level play due to its riskiness and the emergence of strong defenses against it, but it remains a popular and exciting choice among amateur players.