[Retros] Happy New Year

[Noam Elkies]

Thanks to Olli Heimo and his sister for the reminder.  This position
took longer for Popeye to confirm (about 30 minutes) than it took me
to compose; there's no new combinatorial ingredient though there's
a bit more W/B interaction than I've used before.  Also no captures
and the diagram is mate:


White Ra1 Sb1 Bb2 Qd1 Ka4 Bf1 Sg1 Rc3 Pa2 Pb3 Pc2 Pd2 Pe2 Pf3 Pg2 Ph4
Black Ra8 Sb8 Bf5 Qa5 Kh8 Bd8 Se7 Re8 Pa7 Pb7 Pc6 Pd6 Pe6 Pf7 Pg7 Ph7
SPG-12.0: how many solutions?

rn1br2k/pp2nppp/2ppp3/q4b2/K6P/1PR2P2/PBPPP1P1/RN1Q1BN1

               NDE 4.i.10

  +---a---b---c---d---e---f---g---h---+
  |                                   |
  8  -R  -S   .  -B  -R   .   .  -K   8
  |                                   |
  7  -P  -P   .   .  -S  -P  -P  -P   7
  |                                   |
  6   .   .  -P  -P  -P   .   .   .   6
  |                                   |
  5  -Q   .   .   .   .  -B   .   .   5
  |                                   |
  4   K   .   .   .   .   .   .   P   4
  |                                   |
  3   .   P   R   .   .   P   .   .   3
  |                                   |
  2   P   B   P   P   P   .   P   .   2
  |                                   |
  1   R   S   .   Q   .   B   S   .   1
  |                                   |
  +---a---b---c---d---e---f---g---h---+
    dia12.0                   16 + 16

Enjoy,
--NDE