The 1 hour CCR test by Kaufman/position 22

[Peter Berger]

[d]r3kb1r/pp1n1ppp/1q2p3/n2p4/3P1Bb1/2PB1N2/PPQ2PPP/RN2K2R w KQkq -

I never understood this one. It is obviously flawed ( we can easily see this now with current strong engines) as 1. a4 isn't the strongest move.

But what was the logic that made the move look appealing and where exactly did the logic behind it fail? I'd love to know.

[Vinvin]

Yes, look at here : http://talkchess.com/forum3/viewtopic.p ... 42#p609042

[lkaufman]

[d]r3kb1r/pp1n1ppp/1q2p3/n2p4/3P1Bb1/2PB1N2/PPQ2PPP/RN2K2R w KQkq -

I never understood this one. It is obviously flawed ( we can easily see this now with current strong engines) as 1. a4 isn't the strongest move.

But what was the logic that made the move look appealing and where exactly did the logic behind it fail? I'd love to know.

The diagram is wrong; the bishop is on d7, not the knight; so a4 prevents ...Bb5. As to whether Qe2 is a better way to prevent it, it may be, but that would not be a human solution, because then Nbd2 leaves b2 unprotected, so it can only be justified with massive calculation.

[Peter Berger]

[d]r3kb1r/pp1n1ppp/1q2p3/n2p4/3P1Bb1/2PB1N2/PPQ2PPP/RN2K2R w KQkq -

I never understood this one. It is obviously flawed ( we can easily see this now with current strong engines) as 1. a4 isn't the strongest move.

But what was the logic that made the move look appealing and where exactly did the logic behind it fail? I'd love to know.

The diagram is wrong; the bishop is on d7, not the knight; so a4 prevents ...Bb5. As to whether Qe2 is a better way to prevent it, it may be, but that would not be a human solution, because then Nbd2 leaves b2 unprotected, so it can only be justified with massive calculation.

This is cool - you have published this set, and it got reposted ( or republished) forever on end. Maybe it was just that the position was wrong - please give the correct FEN now ( after like 30 years of wondering )

[Peter Berger]

Yes, look at here : http://talkchess.com/forum3/viewtopic.p ... 42#p609042

Ah, I already knew this once - lol, I am getting old, thx Vinvin!!