Four Knights Game: Glek System is a chess opening with the ECO code C47, part of the Four Knights Game family. It goes 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3. White opens with 1. e4 (the king's pawn) and Black answers 1... e5. After 13 moves it is Black to move. The lesson on the board explains every move of the line and lets you play it yourself; it is free.
The moves
1. e4 – White plays the pawn to e4
1... e5 – Black plays the pawn to e5
2. Nf3 – White plays the knight to f3
2... Nc6 – Black plays the knight to c6
3. Nc3 – White plays the knight to c3
3... Nf6 – Black plays the knight to f6
4. g3 – White plays the pawn to g3
4... d5 – Black plays the pawn to d5
5. exd5 – White captures on d5 with the e-pawn
5... Nxd5 – Black takes on d5 with the knight
6. Bg2 – White plays the bishop to g2
6... Nxc3 – Black takes on c3 with the knight
The line goes on for 1 more moves; the lesson shows them all.
About the Four Knights Game
Both sides bring out both knights: 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6. It is a classical, healthy opening that follows the basic rules.
White chooses 4.Bb5 (Spanish), 4.d4 (Scotch) or 4.Bc4 (Italian) style.
Black can answer 4.Bb5 with ...Bb4 (copying) or the sharp ...Nd4.
Watch the pin Bg5 on the f6 knight in symmetrical lines.
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