ISC 2017 - 2è rde - solutions

1.Bd4-a7 ! {5p} threat: 2.Qc2*d3 # {
} 1...c3*d2 2.Sd7-f6 # {
} 1...Rd3*d2 2.Sd7-b6 # {
} 1...Rd3-d4 2.Sd7-b6 # {
} 1...Rd3*e3 2.Sd7-b6 # {
} 1...Kd5*e4 2.Sd7-c5 # {
} 1...Kd5-c4 2.Sd7-e5 #

1.Qh1-h3 ! threat: 2.Qh3*c3 + {1p
} 1...Re2-c2 2.Qh3-e3 + {0,5p
} 2...Kc5-b5 3.Qe3-b6 # {
} 2...Kc5-d6 3.Se7-c8 # {
} 1...Re2-e3 2.Qh3*e3 + {0,5p
} 2...Kc5-b5 3.Qe3-b6 # {
} 2...Kc5-d6 3.Se7-c8 # {
} 1...e4-e3 2.Qh3-h4 {1p} threat: 3.Qh4-b4 # {
} 2...Kc5-b5 3.Bd5-c4 # {
} 1...Kc5-b5 2.Bd5-c4 + {0,5p
} 2...Kb5*c4 3.Qh3*c3 # {
} 1...Kc5-d6 2.Bd5-c6 {1p} threat: 3.Qh3*d7 # {
} 2...d7*c6 3.Se7-c8 # {
} 2...Ba8*c6 3.Se7-c8 # {
} 1...Ba8*d5 2.Rg5*d5 + {0,5p
} 2...Kc5-c4 3.Qh3*c3 #

1.Sh3-g5 {1p
} 1...Qa3-a4 2.h7-h8=Q Qa4-d1 + 3.Sg5-f3 {1p
} 3...Kg2*f3 4.Ba6-e2+ {1p
} 4...Qd1*e2 5.Qh8-b8 {1p
} 5...Qe2-d1 6.Qb8-d8 {1p
} 6...Qd1*d8 {pat !}

1.Rb6-b8 Re7-h7 2.Kc5-b6 Bf8-g7 3.Kb6-a7 Bg7*d4 # {2,5p

} 1.Bd6-b8 a3-a4 2.Sa6-c7 Kh1*h2 3.Sc7-d5 + Re7-c7 # {2,5p}

1.Se2-c1 ! threat: 2.Sc1-d3 # {
} 1...Ke5-f4 2.h3-h4 threat: 3.Sc1-d3 + 3...Kf4-g3 4.Sg7-f5 # {
} 2...Kf4-g3 3.Sg7-f5 + 3...Kg3-f4 4.Sc1-d3 # 3...Kg3-f2 4.Sc1-d3 + 4...Kf2-f1 5.Sf5*d4 {2,5p
} threat: 6.Bf3-e2 # {
} 2...Be8-d7 3.Sc1-e2 + 3...Kf4-e5 4.c5-c6 threat: 5.Ba7*d4 # 4...d6-d5 5.Ba7-b8 # 4...b7-b6 5.Ba7*b6 {2,5p
} threat: 6.Bb6*d4 # 5...d6-d5 6.Bb6-c7 #

1.Qc5-b6 ! threat: 2.Bb3-c2 + 2...Kd3*c4 3.Ra2-a4 + 3...Kc4-d5 4.Qb6-e6 + {@} 4...f7*e6 # 1...Sh3*f4 2.Sg6*f4 + 2...g5*f4 3.Se4-f2 + 3...Rh2*f2 4.Qb6-e3 + {@} 4...f4*e3 # 1...Qg7-f8 2.Sg6-e5 + 2...f6*e5 3.Qb6-d4 + 3...e5*d4 4.Se4-c5 + {@} 4...Qf8*c5 # {
@@@ = 1,5 / 3 / 5}