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Repeated moves in Opening Explorer

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Avatar of varelse1
varelse1
Jun 25, 2019
0
#1

https://www.chess.com/explorer?moveList=e4+e6+d4+d5+Nd2+c5+Ngf3+cxd4+exd5+Qxd5+Bc4+Qd6+O-O+Nf6+Nb3+Nc6&ply=16

 

So I was browsing through the Opening Explorer, and I reached the following position:

And here I read white's top two choices are 9.Nbxd4 (with 2644 games played), and 9.Nbd4!! (With 1988 games played)

But they are both the same move!

Bug or what?

Avatar of Allegretta
Allegretta
Jun 25, 2019
0
#2

Wonder if they're referring to the two different knights, both which can take d4?

Avatar of Drsam74
Drsam74
Jun 26, 2019
0
#3

yes, probably: Nbxd4 and Nfxd4. Play them both and see.

https://www.365chess.com/opening.php?m=17&n=1483&ms=e4.e6.d4.d5.Nd2.c5.Ngf3.cxd4.exd5.Qxd5.Bc4.Qd6.O-O.Nf6.Nb3.Nc6&ns=3.16.12.17.74.682.583.880.5560.1309.1232.1310.1464.1482.1465.1483

Avatar of jdcannon
jdcannon
Jun 26, 2019
0
#4

Weird. I put in a bug report. 

Avatar of varelse1
varelse1
Jun 26, 2019
0
#5

Problem is I followed both, and both times, was the b-knight that captured.

And both moves have exactly the same stats, (Though different number of moves played.)

Avatar of varelse1
varelse1
Aug 15, 2019
0
#6

Also, 9.Nfxd4 was listed further down the list.