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King's Pawn Game refers to any chess opening where White opens with 1.e4, the most popular of the twenty possible opening moves. Since nearly all of these openings have names of their own, the term "King's Pawn Game", unlike Queen's Pawn Game is rarely used to describe the opening of the game.

King's Pawn Games are further classified by whether Black responds with 1...e5 or not.

Openings beginning with 1.e4 e5 are called Double King's Pawn Games (or Openings), Symmetrical King's Pawn Games (or Openings), or Open Games—these terms are equivalent. Openings where Black responds to 1.e4 with a move other than 1...e5 are called Asymmetrical King's Pawn Games (or Openings) or Semi-open Games.

According to Chessbase, white chances are about 57%

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Contributors : Thibault de Vassal, Mark Noble, Francisco Pessoa

[ECO "B00"] [Opening "King's pawn Opening"]

e5 : 17439 games, White ELO av : 1638, Black ELO av : 1627
1-0 : 46% , 1/2-1/2 : 16.3% , 0-1 : 37.8%

c5 : 16432 games, White ELO av : 1791, Black ELO av : 1809
1-0 : 37.4% , 1/2-1/2 : 25.7% , 0-1 : 36.9%

e6 : 4095 games, White ELO av : 1753, Black ELO av : 1748
1-0 : 42.7% , 1/2-1/2 : 20.8% , 0-1 : 36.5%

c6 : 2748 games, White ELO av : 1717, Black ELO av : 1726
1-0 : 41.6% , 1/2-1/2 : 19.4% , 0-1 : 39.1%

d5 : 1496 games, White ELO av : 1592, Black ELO av : 1562
1-0 : 50.3% , 1/2-1/2 : 9.2% , 0-1 : 40.4%

d6 : 1062 games, White ELO av : 1671, Black ELO av : 1645
1-0 : 49.1% , 1/2-1/2 : 15% , 0-1 : 35.8%

Nf6 : 743 games, White ELO av : 1641, Black ELO av : 1661
1-0 : 52.4% , 1/2-1/2 : 9.7% , 0-1 : 37.9%

g6 : 613 games, White ELO av : 1802, Black ELO av : 1798
1-0 : 43.6% , 1/2-1/2 : 26.5% , 0-1 : 29.9%

Nc6 : 453 games, White ELO av : 1479, Black ELO av : 1456
1-0 : 57.2% , 1/2-1/2 : 10% , 0-1 : 32.8%

b6 : 206 games, White ELO av : 1617, Black ELO av : 1613
1-0 : 50% , 1/2-1/2 : 6.8% , 0-1 : 43.2%

h6 : 72 games, White ELO av : 1774, Black ELO av : 1872
1-0 : 40.3% , 1/2-1/2 : 13.9% , 0-1 : 45.8%

a6 : 69 games, White ELO av : 1772, Black ELO av : 1759
1-0 : 52.2% , 1/2-1/2 : 20.3% , 0-1 : 27.5%

g5 : 25 games, White ELO av : 1746, Black ELO av : 1729
1-0 : 80% , 1/2-1/2 : 8% , 0-1 : 12%

f5 : 16 games, White ELO av : 1411, Black ELO av : 1395
1-0 : 43.8% , 1/2-1/2 : 6.3% , 0-1 : 50%

h5 : 14 games, White ELO av : 2011, Black ELO av : 1950
1-0 : 42.9% , 1/2-1/2 : 21.4% , 0-1 : 35.7%

f6 : 12 games, White ELO av : 1693, Black ELO av : 1733
1-0 : 50% , 1/2-1/2 : 25% , 0-1 : 25%

a5 : 10 games, White ELO av : 1460, Black ELO av : 1396
1-0 : 90% , 1/2-1/2 : 10% , 0-1 : 0%

b5 : 9 games, White ELO av : 1789, Black ELO av : 1721
1-0 : 33.3% , 1/2-1/2 : 11.1% , 0-1 : 55.6%

Na6 : 2 games, White ELO av : 1404, Black ELO av : 1400
1-0 : 100% , 1/2-1/2 : 0% , 0-1 : 0%

Nh6 : 1 game, White ELO av : 1112, Black ELO av : 1400
1-0 : 100% , 1/2-1/2 : 0% , 0-1 : 0%

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