Grabbing Pawns

In the Opening, you must develop pieces quickly. If you waste time capturing pawns, the position will become worse.

Example 1
1. d2-d4 d7-d5
2. Bc1-f4 Ng8-f6
3. Ng1-f3 e7-e6
4. e2-e3 c7-c5
5. c2-c4 in QP openings, the c-pawn is used by both players to attack the enemy pawn center
5. ..... Nb8-c6
6. Nb1-c3 a7-a6
7. Qd1-a4? better Ra1-c1 Bc8-d7
8. Qa4-d1 Qd8-a5 threat Nf6-e4
9. Qd1-b3? better Qd1-d2 d5xc4
10. Qb3xb7?? grabbing this poisoned pawn leads to immediate loss
10. ----- Ra8-a7!
11. White Resigns white Q is trapped since white moved his Q too many times in the opening

Example 2
1. e2-e4 c7-c5
2. Ng1-f3 d7-d6
3. d2-d4 c5xd4
4. Nf3xd4 g7-g6
5. c2-c4 Ng8-f6
6. Nb1-c3 Nb8-c6
7. f2-f3 Qd8-b6? correct is Bf8-g7
8. Bc1-e3! Qb6xb2?? grabbing this poisoned pawn leads to immediate loss. Better move was Qb6-d8
9. Nc3-a4 Qb2-a3
10. Be3-c1! Qa3-b4+
11. Bc1-d2 Qb4-a3
12. Nd4-b5 Black Resigns black Q is trapped since black moved his Q too many times in the opening