d 4 ▁ 3 . c 3 ▁dx c 3 ▁ 4 . B c 4 ▁cx b 2 ▁ 5 . B x b 2 ). ▁R ather ▁than ▁play ▁the ▁usual ▁ 5 ... d 5 , ▁Hor ow itz ▁suggested ▁keeping ▁both ▁pa wn s ▁and ▁playing ▁ 5 ... c 6 . ▁ ▁This ▁would ▁be ▁followed ▁up ▁by ▁... d 6 , ▁... N d 7 , ▁... N c 5 , ▁and ▁... Be 6 . ▁Although ▁inf re qu ently ▁played , ▁the ▁defense ▁has ▁not ▁been ▁ref uted . ▁Hor ow itz ▁is ▁cred ited ▁as ▁the ▁invent or ▁of ▁the ▁defense ; ▁it ▁is ▁called ▁Hor ow itz ▁Def ense ▁by ▁G M ▁N ig el ▁Dav ies ▁in ▁the ▁Fox y ▁Open ings ▁DVD ▁D ash ing ▁Dan ish . ▁ ▁Notable ▁games ▁ ▁Hor ow itz ▁vs . ▁Sal o ▁Flo hr , ▁USA ▁vs . ▁USS R ▁radio ▁ch ess ▁match ▁ 1 9 4 5 : ▁ 1 . ▁e 4 ▁c 6 ▁ 2 . ▁d 4 ▁d 5 ▁ 3 . ▁N c 3 ▁dx e 4 ▁ 4 . ▁N xe 4 ▁N f 6 ▁ 5 . ▁N xf 6 + ▁g xf 6 ▁ 6 . ▁Ne 2 ▁B f 5 ▁ 7 . ▁Ng 3 ▁B g 6 ▁ 8 . ▁h 4 ▁h 6 ▁ 9 . ▁h 5 ▁Bh 7 ▁ 1 0 . ▁c 3 ▁Q b 6 ▁ 1 1