Carlos A. Grassano & Mario G. García (Argentina)
 
#2 4+3


Set Play:  1. ... e4 2. Qxg5#
 
Try: 1. Rxg5?+
 1. ... Ke4 2. Qe3#    But 1. ... Kf6!
 
Try: 1. Qe2? [2. Qf3#]
 1. ... Kf6   2. Qf3#
 1. ... Kf4   2. Rf8#
 1. ... g4    2. Qxe5#   But 1. ... e4!
 
Solution: 1. Qe3! [2. Qf3#]
 1. ... e4      2. Qxg5#
 1. ... Kf6    2. Qf3#
 1. ... Kg4   2. Rxg5#
 1. ... g4     2. Qxe5#




Two different w-units mate on the same square