A task by Nikos Pergialis, (3)

The Greek composer Nikos Pergialis (born 19-IX-1930) creates problems with clear theme and a few pieces.

Also, he aims to present ideal mates, where all the pieces have a role.

Problem_764 Nikos Pergialis (GRE) original

8/8/2R2p2/3k3s/2RP4/2p2K2/2p5/3s1B2 #2

Key: 1.Βg2! [2.Κe2# / Κg4#] 1...f5 2.Ke2# 1...c1=S 2.Kg4# 1...Sd1~ Ke3# / Kf2#, 1...Se3 2.Kxe3#, 1...Sf2 2.Kxf2# (antidual) 1...Sh5~ Kf4# / Kg3#, 1...Sf4 2.Kxf4#, 1...Sg3 2.Kxg3# (antidual) In this direct-mate two-mover we see the construction of a royal battery, which gives six different mates : a Task.

Problem_765 Nikos Pergialis (GRE) original

8/8/b1p5/r1p5/2pk1p2/8/3KP3/8 h#5

1.c3+ (a line opens for Ba6) Ke1 2.Bd3 (self-block) Kf2 3.c4 (a line opens for Ra5) Kf3 4.Rd5 (self-block) Kxf4 (takes the pawn which inhibits the mate) 5.c5 e3# In this help-mate five-mover we see openings of lines and self-blockings. The white achieves an ideal mate.