ISC 2018 - 2nd rd - solutions

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ISC 2018

2nd round - 120mn

Jury Vakhlakov
3.Pr Shakhmaty v SSSR
1980

white Bf5 Kb7 Qd8 Pc6c5e6e5e3 Sg6d2 Rc1 black Pa7d6g5b4 Sc8 Bh6h1 Kd5
#2(11+8)
1.e6-e7 ? Bh6-f8 ! {
} 1.Qd8-a5 ? d6*e5 ! {
} 1.Qd8-g8 ? Sc8-e7 ! {
} 1.c5*d6 ? Sc8-b6 ! {

} 1.Bf5-c2 ! {5,0} threat: 2.Bc2-b3 # {
} 1...Kd5*c5 2.Qd8-a5 # {
} 1...Kd5*e6 2.Qd8-g8 # {
} 1...Sc8-b6 2.Qd8*d6 #

Ljubomir Brankovic
Die Schwalbe
2008

white Bf1 Kc1 Qf6 Pf3d2b4 Sf4g8 Rc8d8 black Pf7e5d5h4c2a7 Se6f5 Rc7h7 Kd4 Ba2
#3(10+12)
1.Qf6-g6 ! threat: 2.Qg6-g1 + {@
} 1...Rh7-g7 2.Sg8-h6 {@
} 1...Se6-g5 2.Qg6-a6 {@
} 1...Rc7-c3 2.Sf4-e2 + {@

@ = 1,0/ 2,5 / 4,0 / 5,0}

Boris Sakharov
Shakmaty v SSSR
1952

white Pd6b6e2 Kf4 Bg2 black Pb7 Se8h1 Bh8 Ke6
=(5+5)
1.Bg2-d5+! {1,0
} Ke6-d7 2.Bd5*b7 Sh1-f2 3.Bb7-c6+ {1,0
} Kd7*c6 4.b6-b7 {1,0
} Kc6*b7 5.d6-d7 Se8-g76.d7-d8=S+ {1,0
} Kb7-c7 7.Sd8-f7 Sg7-e6+ 8.Kf4-f5 Se6-d4+ 9.Kf5-g6 {1,0
}

Wilhelm Hagemann
2.Pr. Schach-Echo
1964

white Pe5b3 Kc1 Rd6d2 black Qc7 Pg3e4d4d5b5a3c2e2 Se6 Be1 Ke3
h#3(5+12)
b) -Dc7
a) {
} 1.Be1-f2 Rd6*e6 2.Qc7*e5 Kc1*c2 3.Qe5-f4 Rd2-d3 # {
2,5

} b) -bQc7 {
} 1.Se6-f4 Rd2-d1 2.c2*d1=S Rd6-g6 3.Sd1-f2 Rg6*g3 # {
2,5}

Ralf Krätschmer
Original for Schach
2018

white Pg6h5g3f2c3 Kd7 Be7 Sh2b4 black Ph6g7g5f5e4 Sa7 Bb8b1 Ke5
#10(9+9)
1.Be7-f8 Ke5-f6 2.Sb4-d5+ Kf6-e5 3.Sd5-e3 Ke5-f6 {
} 4.f2-f4 g5*f4 5.g3*f4 Bb8*f4 6.Bf8-e7+ Kf6-e5 {
} 7.Be7-d6+ Ke5-f6 8.Se3-d5+ Kf6-g5 9.Bd6-e7+ {5,0
} Kg5*h5 10.Sd5*f4#

Waldemar Tura
1.Pr. Problemista 35 JT
1997

white Bf4e6 Kd1 Qa5 Pc2e2g3h7 Sg5f6 Rg4f7 black Pc7b4c3h5h2e4 Kg6 Rh6h1 Bg1
s#4(12+10)
1.Bf4-c1 ! threat: 2.h7-h8=S + 2...Rh6*h8 3.Be6-f5 + 3...Kg6-h6 4.Sg5*e4 + {@} 4...Bg1-e3 # {
} 1...e4-e3 2.Sg5-f3 + 2...h5*g4 3.Sf3-e5 + 3...Kg6-g5 4.Bc1*e3 + {@} 4...Bg1*e3 # {
} 1...c7-c5 2.Sg5-h3 + 2...h5*g4 3.Sh3-f4 + 3...Kg6-g5 4.Qa5*c5 + {@} 4...Bg1*c5 # {

@ = 2.0 / 3.5 /5.0}

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