White to play and mate in 3 - #21
Bijz. verm. N. S. B. - 1913
1. Kb2 threat Qd4 1. ... de4 2. Qd6 chk
1. ... e5 2. Ng5 chk
1. ... Ke5 2.e3
1. ... Rg7~ 2.Nf6 chk
(Brede-cross-check)
