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4
  • $\begingroup$ Material being the sum of the piece values (1,3,5,9, etc.) or the number of pieces? $\endgroup$
    – sunfishho
    Commented Jul 11, 2019 at 23:55
  • $\begingroup$ Will ties be broken based on the sum? (aka will 1 queen > 1 rook)? $\endgroup$
    – sunfishho
    Commented Jul 11, 2019 at 23:56
  • $\begingroup$ Sorry for pestering you, but are tablebases allowed? I'm wondering this because I would like to show that a position is a draw because of the 50 move rule. $\endgroup$
    – sunfishho
    Commented Jul 11, 2019 at 23:59
  • 2
    $\begingroup$ Is the requirement (1) that the only optimal move be a particular sort of promotion or (2) that the only optimal promotion be a particular sort? #2 seems much easier to arrange than #1. $\endgroup$
    – Gareth McCaughan ♦
    Commented Jul 12, 2019 at 0:24