Changed motivation

Twin (multiple twins) with identical solution, but with changed motivation of moves.

See also: White constant.

Kolčák, Marek

Whisky Tourney, Turku, 1995

2nd Prize

Example: Changed motivation
h#2 b) bKb7↔wKf5  (7+11)

a) 1.Reg4 Sf4 2.Bb8 d6#
b) 1.Reg4 Sf4 2.Bb8 d6#

View in Helpmate Analyzer

FEN: 2n5/pk6/8/R2PbK1b/1p1Br2r/6Pp/3qNp2/7B

External links:

Zigman, Matjas

Problem, 1973

Example: Changed motivation
h#2 b) bKh6→a8  (5+8)

a) 1.Sb8 Bxh7 2.e4+ Bxe4#
b) 1.Sb8 Bxh7 2.e4+ Bxe4#

View in Helpmate Analyzer

FEN: r5BR/q4p1n/n3pP1k/R3p3/8/3K4/8/8

External links:

Harkola, Hannu

M. Kolcak-50 JT (TT), 2010

1st Prize

Example: Changed motivation
h#2 b) bKc5→h4  (6+13)

a) 1.Rd4 Se5 2.Sc2 Sxe4#
b) 1.Rd4 Se5 2.Sc2 Sxe4#

View in Helpmate Analyzer

FEN: 2K5/b2prp2/p1N5/2kn2Pp/2r1p3/1R2n1N1/q4B2/1b6