(16+4) Series-mover: only White moves; White cannot check except probably at the end of the series. Proof game in 18: construct the only game that leads to the given position after White's 18th move.
Mario Velucchifeenschach, 2001
Since V3 doesn't want to display BigDogg's solution, here it is with an additional black bishop as a counter.
(16+4) Series-mover: only White moves; White cannot check except probably at the end of the series. Proof game in 18: construct the only game that leads to the given position after White's 18th move.
Mario Velucchi
feenschach, 2001