Ohrid 2018 - open ronde 1 - solutions

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90mn (1h30)

1

white Bb7h2 Kb3 Qa6 Pe3 Sb5f3 Rd8d1 black Bf1c1 Kc5 Qe8 Pe7e6g6f4b6 Sd7d3 Rg4
#2(9+12)
1.Sb5-c3 ! {*} threat: 2.Sc3-e4 # {
} 1...Sd3-f2 2.Sc3-a4 # {
} 1...f4*e3 2.Qa6-b5 # {
} 1...Kc5-d6 2.Qa6*b6 # {
} 1...Sd7-f6 2.Qa6-c4 #

2

white Qe7 Pg2c3c5b6a6 Sd8a4 Bf2a2 Ka5 black Pf7f6c2c4b4b7a7 Se2 Rh6h1 Kd5
#3(11+11)
1.g2-g4 ! {(menace} 2.Qe7-d7 + {*)} 2...Kd5-e5 {ou} 2...Kd5-e4 3.Qd7-f5 # {
} 1...Rh6-h5 2.b6*a7 {* (menace} 3.Sa4-b6 # {)} 2...Rh5-e5 3.Qe7*b7 # {
} 1...Rh1-h5 2.Ka5*b4 {* (menace} 3.Ba2*c4 # {)} 2...Rh5-e5 3.Qe7*b7 # {
} 1...Se2-d4 2.c3*d4 {* (menace} 3.Qe7*b7 # {)} 2...f6-f5 3.Qe7-e5 # 2...a7*b6 + 3.Sa4*b6 # {
} 1...Se2-g3 2.Qe7*b7 + {*)} 2...Kd5-e5 3.Bf2*g3 # {
} 1...Se2-f4 2.Qe7*b7 + {*)} 2...Kd5-e5 3.Bf2-d4 #

3

white Pf6g2d2b2c5 Se8d3 Bf1 Ke5 Rb7 black Pf5a6 Kc4 Bf8a2 Sc2
#4(10+6)
1.g2-g3 ! {zz
} 1...f5-f4 2.Ke5-e4 {(menace} 3.Bf1-h3 {* (qui menace} 4.Bh3-e6 # {)
} 3...Sc2-e3 {ou} 3...Sc2-d4 {ou} 3...Sc2-b4 4.Rb7*b4 # {
} 2...a6-a5 3.Sd3-e5 + {*} 3...Kc4*c5 4.Rb7-b5 # {
} 1...Ba2-b3 2.Sd3-c1 + 2...Kc4*c5 3.Sc1*b3 + {**} 3...Kc5-c6 4.Bf1-g2 # {
} 1...a6-a5 2.b2-b3 + 2...Ba2*b3 3.Sd3-b4 + {**} 3...Kc4*c5 4.Rb7-b5 # {

autre variante hors barême
} 1...Bf8-e7 2.f6*e7 {menace} 3.Se8-d6 # 2...Sc2-b4 3.Rb7*b4 #

4

white Sa2 Bh5a1 Kd1 black Pf3h2 Ke4 Bg1
=(4+4)
1.Sa2-c3+ {
(et ici } 1...Ke4-f4 2.Sc3-d5+ Kf4-e4 3.Sd5-f6+ Ke4-f4 {
} 4.Ba1-e5+ Kf4*e5 5.Bh5*f3 {fait nulle plus vite)
} 1...Ke4-e3 2.Sc3-d5+ {*} 2...Ke3-f2 3.Ba1-d4+ {(sur } 3...Kf2-g3 {il y a} 4.Bd4-e5+ {)
} 3...Kf2-g2 4.Sd5-f4+ {*} 4...Kg2-g3 5.Sf4-e2+! {*} 5...f3*e2+ {
} 6.Kd1*e2 {(menace } 7.Bh5-f3 {)} 6...h2-h1=Q 7.Bd4-e5+ Kg3-h4 8.Bh5-f3 {*} 8...Qh1-h3 {
} 9.Be5-f6+ {*} 9...Kh4-g3 10.Bf6-e5+ Kg3-h4 11.Be5-f6+ {=}

5

white Pe4h4h2g2 Kh3 Rg4 Bg3 black Pg7e5b7a5a4a2 Kc6 Bc7c8 Sg8 Ra3
h#4 3sol.(7+11)
1.Ra3-f3 g2*f3 2.b7-b6 Bg3*e5 3.Bc8-a6 Rg4*g7 {
} 4.Ba6-b5 Rg7*c7 # {*

} 1.Bc8-f5 e4*f5 2.Ra3-b3 Rg4-d4 3.Rb3-b5 Bg3-f2 {
} 4.Kc6-b6 Rd4-d6 # {*

} 1.Ra3-d3 h4-h5 2.Rd3-d7 Bg3-f2 3.Bc7-b8 Rg4-g6 + {
} 4.Kc6-c7 Bf2-b6 # {*

}

6

white Bd8f1 Ke1 Qg3 Ph3 Se3d2 Rf7h7 black Pe5e4 Kg6 Bh5 Sg4
s#7(9+5)
1.Se3-g2! e4-e3 2.Bf1-d3+ e5-e4 3.Sd2*e4 e3-e2 {
} 4.Se4-f6+ Kg6-g5 5.Qg3-e5+ Sg4*e5 6.Sf6-e4+ Kg5-g6 {
} 7.Se4-d2+ {*} Se5*d3#
barême
*/problèmes * ** *** **** ***** ******
1 5          
2 0,75 1,5 2,5 3,25 4 5
3 0,75 1,5 2,5 3,25 4 5
4 1 2 3 4 5  
5 1,5 3,25 5      
6 5          

 

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