DERLD according to John B. Henderson

[John Upham]

It would appear that John B. Henderson has become a victim of auto correction

Apparently DERLD = Delayed Exchange of the Ruy Lopez Differed

which in Fast Show style, is nice.

https://www.firstmovechess.org/worst_worlds

but also

https://store.chessclub.com/har-zvi-the-derld


Make of that what you will.

[John Upham]

As if by magic, this morning we now have


"Delayed Exchange of the Ruy Lopez Deferred"

Aren't fora wonderful!

[John Upham]

and for the record we have:

41eGscN34OL._SR600,315_PIWhiteStrip,BottomLeft,0,35_PIStarRatingTWO,BottomLeft,360,-6_SR600,315_SCLZZZZZZZ_FMpng_BG255,255,255.png

[Matt Mackenzie]

A minor curiosity is that delaying the exchange to move 6 is rather more common than "only" move 5.

Presumably it is thought Black committing his Bishop to e7 in the interim makes a significant difference?

[Roger de Coverly]

Presumably it is thought Black committing his Bishop to e7 in the interim makes a significant difference?

I think that was the idea. If DERLD is a possibility, playing the marginally risky move order 5. .. b5 and then 6 .. Be7 is a way to avoid it.