Solving contest in tourney "Ikaros 2012"

The solving contest tends to be a regular feature in the international tourney "Ikaros 2012" in Greece, (more for the tourney here : http://ikariachess.blogspot.gr/).


This year's contest was prepared by Dimitris Skyrianoglou and contained direct mate problems in 2, 3, 4 moves.
Judge was the international arbiter Odysseas Vazelakis. In the first place finished with ease Nikos Kampanis and followed the solvers Nikitas Georgiadis, Kyriakos Lemonis, Stergios Sgouletas, Stergios Gemelas, Xanthoula Andrianatou, Argyris Andrianatos, Giannis Sgouletas, Christos Kazalas.

The problems of the solving contest

1k6/1P6/4K3/8/1Q6/8/8/8 (3 + 1)	Problem-595 Kovalenko, Vitaly Karpati Igaz 1968 #2 1.Qb5! Ka7 / Kc7 2.b8=Q# (There is a Forsberg twin with wRb4 and key 1.Rb6!)
6k1/r7/1b3QK1/3S4/8/8/8/8 (3 + 3)	Problem-596 Hoeg, Niels Eskilstuna Kuriren 1937 #2 1.Sc7! [2.Qd8# / Qg7#] Novotny intersection.
8/6B1/8/3BSk2/8/2K5/8/2Q5 (5 + 1)	Problem-597 Loyd, Sam New York Commercial Advertiser 1895 #2 1.Bf8! Kxe5 / Kf6 2.Qg5# / Qf4# The key allows 2 flights for the besieged bK.
k7/P6Q/8/8/8/8/p6p/K6R (4 + 3)	Problem-598 Williams, Philip H. Carte de voeux 1904 #3 1.Kb2! a1=Q+ 2.Rxa1 h1=Q 3.Qxh1#
8/8/4B3/4p3/2p1k3/8/2P2QK1/8 (4 + 3)	Problem-599 Jensen, Wilhelm E. Nationaltidente 1885 #3 Try : {1.Qa7? [2.Kf2 A [3.Qe3#] Kf4 3.Qe3#] Kf4! a} Key : 1.Qg1! 1...Kf4 a 2.Kf2 A [3.Qg4‡] e4 / Ke4 3.Qg3# / Qg4# 1...c3 2.Kf2 [3.Qg4#] Kf4 / Ke4 3.Qg4# / Kf3# Royal battery, Dombrovskis (paradox)
3B4/4Q1p1/pr3sK1/2R1R3/4P2k/5bpP/6P1/3q4 (8 + 8)	Problem-600 Manolas, Emmanuel original #4 Tries : {1.Bxb6? Bg4!}, {1.Qd7? Re6!}, {1.Qf8? / Qe8? / Qxg7? Qxd8!} Key : 1.Rf5! [threat : 2.Rf4+ Bg4 3.Rh5#] 1...Bg4 2.Rf4 [threat : 3.Rh5#] Rb5 3.Qxf6+ gxf6 4.Bxf6# Mutual pins, Bristol line opening, mate with double pin.