ISC 2018 - 1è rde - solutions

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ISC 2018

1ère ronde - 120mn

Josef Kupper
Schach
2004

white Bd5e3 Kh4 Qc5 Ph7d6e2 Sf8 Rf3 black Rd7d2 Kg7 Bh8 Sb1 Pb5
#2(9+6)
1.Qc5-c1! {5}threat: 2.Qc1-g1 # {
} 1...Rd2-d1 2.Be3-h6 # {
} 1...Rd2*d5 2.Be3-h6 # {
} 1...Rd2-d4 + 2.Be3*d4 # {
} 1...Rd2*e2 2.Be3-h6 # {
} 1...Rd7*d6 2.Rf3-f7 # {
} 1...Rd7-f7 2.Rf3*f7 #

Nikolay Malakhov
2.Pr. Trollhättans Schacksällskap
1928

white Be1 Ke8 Qb2 Pa2b4 Sh4 Rd4 black Sh3 Pb7g7e6b5c4b3d3 Ra5 Ba6 Ke3
#3(7+11)
1.Be1-g3 ? threat: 2.Rd4-e4 + 2...Ke3*e4 3.Qb2-e5 # but 1...c4-c3 ! 2.Qb2*c3 Sh3-f2 {

} 1.a2-a3 ! threat: 2.Be1-c3 {@
} 1...e6-e5 2.Qb2-g2 {@
} 1...g7-g5 2.Rd4-f4 {@
} 1...Ra5*a3 2.Rd4*c4 {@

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

Martin Minski
original V. Sosyura 120 MT
2018

white Qb5 Pc5a5g2f2h7 Sa1 Ke1 black Qd4 Pd7d5f3 Kh6 Bc7
+(8+6)
1.Sa1-c2 {1,0
} 1...Qd4-c3+ 2.Ke1-f1 Bc7-e5 3.Sc2-e1 {1,0
} 3...Qc3*e1+ 4.Kf1*e1 f3*g2 5.h7-h8=Q + {1,0
} 5...Be5*h8 6.Qb5-a6+ {1,0
} 6...Kh6-g7 7.Qa6-f1 {1,0
} 7...g2*f1=Q + 8.Ke1*f1 Kg7-g6 9.a5-a6 {+-}

Christopher JONES
original pour l'ISC
2018

white Ph3h2 Kb2 Bb1 black Pe6h4 Sh6e4 Rf8c4 Kf3
h#5 2sol.(4+7)
1.Se4-g3 h2*g3 2.Rc4-f4 Kb2-c2 3.Kf3-e4 g3*f4 4.Ke4-f5 Kc2-d3 5.Rf8-f6 Kd3-e3# {2,5

} 1.Se4-g5 Bb1-h7 2.Rc4-g4 h3*g4 3.Rf8-f5 g4*f5 4.Kf3-g4 h2-h3+ 5.Kg4-h5 Bh7-g6# {2,5}

Josef Kupper
Die Schwalbe
2018

white Qe6 Pd5f5e2g3 Ke8 Bg5 Sb5 black Pe7a7e5h5 Ke4 Bc3
#4(8+6)
1.Qe6-a6 ! threat: 2.Sb5-d6 + 2...Ke4*d5 3.Qa6-c4 + {@@
} 1...Bc3-d4 2.Sb5-c3 + 2...Ke4*f5 3.Qa6-e6 + {@@
} 1...Ke4*f5 2.Qa6-e6 + 2...Kf5-e4 3.Qe6-f7 {@} 2...Kf5*g5 3.Ke8-f7 {@
} 1...Ke4*d5 2.Sb5-c7 + 2...Kd5-c5 3.Bg5*e7 + {@} 2...Kd5-d4 3.Qa6-c6 {@

@ = 1,0 / 1,5 / 2,0 / 2,5 / 3,0 / 3,5 / 4,0 / 5,0}

Mike Prcic
Die Schwalbe
2008

white Bf2a4 Kd1 Qh6 Pf5e3f3b4b3 Sd5e4 Rd7g4 black Bb1 Kd3 Qg5 Pb7c7a2 Sa5 Ra1
s#3(10+11)
1.Bf2-g3 ! threat: 2.Sd5-f4 + 2...Kd3*e3 3.Rd7-d3 + {@} 3...Bb1*d3 # {
} 1...Sa5*b3 2.Se4-c5 + 2...Sb3*c5 3.Ba4-c2 + {@} 3...Bb1*c2 # {
} 1...Qg5*e3 2.Se4-f2 + 2...Qe3*f2 3.Qh6-d2 + {@} 3...Qf2*d2 # {
} 1...Qg5-d8 2.Qh6-h2 threat: 3.Qh2-c2 + {@} 3...Bb1*c2 # {

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

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