zanzibar: After
<1. e4 c5 2. Nf3 e6 3. d4 cd4 4. Nd4 Nc6 5. Nc3 d6 6. Be3 Nf6 7. Qe2> Things are fairly standard until 7.Qe2, a fairly rare continuation by White (1.5% frequency in <MillBase>):  click for larger viewOpening theory should have a good reason why 7.Qe2 isn't played too often, and it seems 7...a6 isn't it - despite being Black's most common reply (at freq of 37%, but White wins 65% of the time). It's clear that 7.Qe2 blocks the lsb in, so 7...a6 isn't needed for that. And without the queen on the d-file, any knight attack on d6 from b5 is neutered by ...a6 after the fact - so Black need not waste a tempo in prevent defense. So, what is the best move for Black?
Quite possibly it's the engine recommended 7...e5 (at 29-ply), which catches the queen on the wrong file. <Millbase> also gives it the lowest scoring for White (only 41.6%). (It also makes g4 a little harder to get too, what with the open diagonal for Black's dsb - in fact ...Ng4 might be in the cards for Black) Of course, the stats are quite small, only 8 games. I'd recommend the move all the same - |