A Cylindrical Quadruplet

C. R. Flood

(Anthony Dickins, A Guide to Fairy Chess, Dover Publication, Inc., New York 1969, p. 16, n. 39)

sh#3

a) Diagram

b) Vertical Cylinder

c) Horizontal Cylinder

d) Anchor-ring*

Sol.

a) 1. h1=Q, 2. Qxd5, 3. Qb5, b3#

b) 1. h1=R 2. Rh5 3. Rb5, b3#

c) h1=B 2. Bg2 3. Bb5, b3#

d) h1=S 2. Sa7 3. Sb5, b3#

* "The ANCHOR-RING is a combination of the Vertical and the Horizontal Cylindres, so that not only do the a and h-files adjoin, but also the 1st and 8th ranks, and the board has no hedges at all" (A. Dickins, op. cit., p. 15).