Swedish problemist.
(a) diagram : Helpmate in 2
(b) replacement of the Queen Qa6 with Rook Ra6, (-bQa6 +bRa6)
(c) or with Bishop Ba6, (-bQa6 +bBa6)
(d) or with Knight Sa6, (-bQa6) +bSa6)
(e) or with black Pawn a6, (-bQa6 +bPa6)
”Revista Romana de Şah”, 1935
h#2 (3+2)
(a) With black Qa6 : Key: 1 Qf6! Sc5 2 Qb2 Ra4#
(b) With black Ra6 : Key: 1 Rb6! Rb1 2 Rb3 Ra1#
(c) With black Ba6 : Key: 1 Bc4! Se1 2 Ba2 Sc2#
(d) With black Sa6 : Key: 1 Sc5! Sc1 2 Sa4 Rb3#
(e) With black Pa6 : Key: 1 a5! Rb3+ 2 Ka4 Sc5#
Updated
10.11.2011
Swedish problemist.
(a) diagram : Helpmate in 2
(b) replacement of the Queen Qa6 with Rook Ra6, (-bQa6 +bRa6)
(c) or with Bishop Ba6, (-bQa6 +bBa6)
(d) or with Knight Sa6, (-bQa6) +bSa6)
(e) or with black Pawn a6, (-bQa6 +bPa6)
Forsberg Henry