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Colle-Zukertort Attack
1
? - 5...c4 & 5...Nc6
2
? - 5...Nbd7
3
? - 5...Bd6
4
? - 4...b6
5
? - 3.e3
6
? - 3.e3 c5
7
? - 2...c5
8
? - 2...e6
9
? - 2...g6
10
? - Rare 1st,2nd move