[Retros] 6 Type DD problems

[Andrew Buchanan]

Hi,

 

Tidying up, I found some new compositions not submitted here. They attempt
to sharpen (and in one case correct) existing "Type DD" records.

Each problem has had at least one reviewer. They appear in no particular
order.

 

As usual, for each, the stipulation is "Last move? Duplex."

 

8/8/8/8/8/2P1P3/PPrPRPPk/KbnnNBR1

Osorio/Lois/Buchanan (12+5=17)

 

8/1p2p3/8/8/7P/P1PP1PPR/P1PkpKpp/B1brnRnr

Osorio/Lois/Keym/Buchanan (12+11=23)

 

8/4p1p1/8/8/8/1P1P1P2/bPP1PRPP/bkr1RKB1

Osorio/Lois/Buchanan/Richter (12+6=18)

(this one with Mario Richter)

 

4b2K/3ppqnQ/4pRRr/5prB/6bb/5PRR/3PPPRq/7k

Keym/Buchanan (12+13=25)

(this one with Werner Keym)

 

5bRB/4p1pK/6p1/8/8/6P1/4P1Pk/5Brb

Buchanan (7+7=14)

(just a minor re-arrangement of prior version)

 

8/3p4/8/8/8/2P1P3/PP1PRPPP/rkbKRN1n

Osorio/Lois/Buchanan (12+5=17)

 

Thanks,

Andrew.

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