ch-Fr-2023

1

Donner la clé.

Evgeny Samotugov
1st Place Ukraine-Bulgaria
O Globo 1955

white Sd8h6 Rf7g5 Bd5e1 Pb7 Qc2 Kh1 black Sb8b5 Ph4b6e3 Kd6 Ra5b3 Bb2 Qa2

#2(9+10)

Solution

{

} 1.Bd5-f3 ! {[5]} threat: 2.Rg5-d5 # {
} 1...Bb2-e5 2.Sh6-f5 # {
} 1...Rb3-a3 2.Be1-b4 # {
} 1...Rb3-b4 2.Be1*b4 # {
} 1...Rb3-d3 2.Be1-b4 # {
} 1...Rb3-c3 2.Qc2-h2 # {
} 1...Sb5-a3 2.Qc2-c7 # {
} 1...Sb5-c3 2.Qc2-g6 # {
} 1...Sb5-d4 2.Qc2-c7 # {
} 1...Sb5-c7 2.Qc2*c7 # {
} 1...Sb5-a7 2.Qc2-c7 #

2

Donner la clé.

G. Arnaud Comte de Savignac-Castelet
1st Prize Bulletin FFE
1928

white Bc7 Re7b5 Se8f8 Qh6 Ph5e6c3c4 Kd1 black Rd8d6 Sb7 Bg8c5 Ph7f6f5e4d2 Ke5

#2(11+11)

Solution

{

} 1.Qh6*d2 ! {[5]
} 1...e4-e3 2.Qd2-d4 # {
} 1...f5-f4 2.Qd2-d5 # {
} 1...Sb7-a5 2.Rb5*c5 # {
} 1...h7-h6 2.Sf8-g6 # {
} 1...Rd8-d7 2.Sf8*d7 # {
} 1...Rd8-a8 2.Sf8-d7 # {
} 1...Rd8-b8 2.Sf8-d7 # {
} 1...Rd8-c8 2.Sf8-d7 # {
} 1...Rd8*e8 2.Sf8-d7 # {
} 1...Bg8*e6 2.Re7*e6 # {
} 1...Bg8-f7 2.e6*f7 #

3

Donner la clé et les variantes
jusqu’au mat.

Virgil Nestorescu
11th place WCCT 1,
Chess Magazine 1972 (version)

white Ka8 Re7 Se6d4 Bf5g3 Pb3 Qb4 black Bd8a4 Pg5b5b6d6 Qg2 Sf2e5 Rd1c1 Kd5

#3(8+12)

Solution

{

} 1.Sd4-c6 ! threat: 2.Qb4*b5 + {[.5]} 2...Rc1-c5 3.Sc6-b4 # 2...Ba4*b5 3.Sc6-b4 # {
} 1...Rc1-a1 2.Qb4-c4 + {[.5]} 2...b5*c4 3.Sc6-b4 # 2...Se5*c4 3.Sc6-b4 # {
} 1...Rc1*c6 2.Se6-f4 + {[.5]} 2...g5*f4 3.Bf5-e6 # {
} 1...Rc1-c5 2.Qb4-d2 + {[.5]} 2...Rd1*d2 3.Sc6-b4 # 2...Sf2-d3 3.Sc6-b4 # 2...Kd5*c6 3.Se6*d8 # 2...Se5-d3 3.Sc6-b4 # {
} 1...Rc1-c4 2.Qb4*c4 + {[.5]} 2...b5*c4 3.Sc6-b4 # 2...Se5*c4 3.Sc6-b4 # {
} 1...Rd1-d4 2.Qb4*d4 + {[.5]} 2...Kd5*c6 3.Se6*d8 # {
} 1...Sf2-d3 2.Qb4-d4 + {[.5]} 2...Kd5*c6 3.Se6*d8 # {
} 1...Qg2-f1 2.Qb4-e4 + {[.5]} 2...Sf2*e4 3.Sc6-b4 # {
} 1...Qg2-e4 2.Qb4*e4 + {[.5]} 2...Sf2*e4 3.Sc6-b4 # {
} 1...Kd5*c6 2.Se6*d8 + {[.5]} 2...Kc6-d5 3.Bf5-e6 #

4

Donner la clé, les menaces et les variantes
jusqu’au mat.

Michael Keller
Prize Jean Morice 60 JT,
1991 (version)

white Bc8f2 Pe6c6g2e3f4 Se5g4 Rf6h5 Qc4 Kh8 black Ba7 Pa6e7h6d4b4e2 Ke4 Sc3c1 Ra2

#3(13+12)

Solution

{

} 1.Bc8-d7 ! threat: 2.Bd7-e8 {[1.25]} threat: 3.Be8-g6 # 2...e7*f6 3.Sg4*f6 # {
} 1...Sc3-d1 2.Se5-f3 {[1.25]} threat: 3.Rh5-e5 # 2...Sc1-d3 3.Qc4-d5 # 2...Ra2-a5 3.Sf3-d2 # 2...Ba7-b8 3.Qc4*d4 # 2...e7*f6 3.Sg4*f6 # {
} 1...Sc3-d5 2.Se5-f7 {[1.25]} threat: 3.Rh5-e5 # 2...Sc1-d3 3.Qc4*d5 # 2...Ba7-b8 3.Qc4*d4 # 2...e7*f6 3.Sf7-d6 # {
} 1...Sc3-b5 2.Se5-d3 {[1.25]} threat: 3.Rh5-e5 # 2...Sc1*d3 3.Qc4-d5 # 2...Ba7-b8 3.Sd3-c5 # 2...e7*f6 3.Sg4*f6 #

5

Donner la solution jusqu’au coup blanc qui précède le mat.

Charles William Benbow
Dubuque Chess Journal
1873

white Pb6b2e3d4f4g6h4 Bb4d7 Ka1 Sg2e5 black Pb7b5b3a2g7h5 Ba6 Ke4

#6(12+8)

Solution

{

} 1.Bd7-c8 ! zugzwang. 1...Ke4-d5 2.Bc8-h3 zugzwang. 2...Kd5-e4 3.f4-f5 zugzwang. 3...Ke4-d5 4.Sg2-f4 + 4...Kd5-e4 5.Sf4-d5 {[5]} zugzwang. 5...Ke4*d5 6.Bh3-g2 #

6

Donner la ligne principale

David Gurgenidze
6th Prize,
Galitzky MT 1993

white Ke6 Pe7g7 Sh7 Ra1 black Rb8h5 Sc4 Kg6

+(5+4)

Solution

{

} 1.g7-g8=Q + Rb8*g8 2.Sh7-f8 + Kg6-g7 3.Ra1-g1 + {[1]} Kg7-h8 {
} 4.e7-e8=Q Rh5-e5 + 5.Ke6-f6 {[1]} Re5-f5 + 6.Kf6*f5 Sc4-d6 + {
} 7.Kf5-e6 {[1]} Sd6*e8 8.Rg1-h1 + Kh8-g7 9.Rh1-h7 + {[1]
} Kg7*f8 10.Rh7-f7 #

7

Donner les solutions complètes

Iosif Krikheli
1 Commendation,
Israel Ring Tourney 1975

white Sc8 Pd4 Kc4 Ba2 black Sg7 Pg6a6a5b4a3 Kf6 Rb5a4 Bc2

h#3(4+10)
b) g6-->e7

Solution

{

} a) {
} 1.Rb5-h5 Sc8-e7 2.Bc2-f5 Kc4-c5 3.Rh5-g5 Se7-g8 # {[2.5]
} b) bPg6-->e7 {pg6-e7
} 1.Bc2-h7 Sc8-d6 2.Rb5-f5 Kc4-d3 3.Bh7-g6 Sd6-e4 # {[2.5]}

8

Donner les solutions complètes.

Steven B. Dowd, Marko Ylijoki &
Mirko Degenkolbe 1st Prize
Israel Ring Tourney 2006

white Pb6b5b4b3a2g2 Ra3 Ba5 Kh1 black Pb7d3e4g3h2 Kf4

h#7 2sol.(9+6)

Solution

{

} 1.d3-d2 Ra3-a4 2.d2-d1=B Ra4-a3 3.Bd1-e2 Ra3-a4 {
} 4.Be2*b5 a2-a3 5.Bb5-f1 b4-b5 6.Kf4-e3 Ra4*e4 + 7.Ke3-f2 Ba5-e1 # {[2.5]
} 1.e4-e3 Ra3-a4 2.e3-e2 Ra4-a3 3.e2-e1=B Ra3-a4 {
} 4.Be1*b4 Ba5*b4 5.Kf4-e3 Bb4-a3 6.Ke3-d2 Ba3-c1 + 7.Kd2-c3 Ra4-c4 # {[2.5]}

9

Donner la clé et les variantes
jusqu’au mat.

Jean-Pierre Boyer 2nd Place,
French Championships
1984

white Rd7f5 Pe4c2b3 Qh4 Bg2b6 Kf1 Sd1b1 black Pf2g3c3c5b7 Sh1b5 Re2c4 Kd4 Ba6d6

s#3(11+12)

Solution

{

} 1.Rf5-g5 ! zugzwang. 1...Re2*c2 2.Qh4-h8 + 2...Kd4-d3 3.Rg5*g3 + {[1.25]} 3...Sh1*g3 # {
} 1...Re2-d2 {(ou aiileurs)} 2.Rd7*d6 + 2...Sb5*d6 3.Bb6*c5 + {[1.25]} 3...Rc4*c5 # {
} 1...Rc4-a4 {(ou aiileurs)} 2.e4-e5 + 2...Re2-e4 3.Rd7*d6 + {[1.25]} 3...Sb5*d6 # {
} 1...Sb5-a3 {(ou aiileurs)} 2.Bb6*c5 + 2...Rc4*c5 3.e4-e5 + {[1.25]} 3...Re2-e4 #

10

Donner la clé, la menace et les variantes
jusqu’au mat.

Frank Richter
Prize
harmonie 1992-94

white Pe2c3d5 Se1 Bb4 Qa4 Ra5c1 Ka1 black Pg6h4f4d3a6a3a2 Qh5 Bf3 Kc4

s#4(9+10)

Solution

{

} 1.Rc1-d1 ! threat: 2.Qa4-c6 + 2...Kc4-b3 3.Rd1-d2 threat: 4.Rd2-b2 + {[1.5]} 4...a3*b2 # {
} 1...Bf3*d5 2.Bb4-d6 + 2...Kc4*c3 3.Bd6-e5 + 3...Qh5*e5 4.Qa4-b4 + {[2]} 4...Kc3*b4 # {
} 1...Qh5*d5 2.Bb4-c5 + 2...Kc4*c3 3.Bc5-d4 + 3...Qd5*d4 4.Qa4-b3 + {[1.5]} 4...Kc3*b3 #

11

Donner la clé.
jusqu'au coup blanc qui précède le mat

Semion Shiffrin
HM1 A Mikholap 35JT,
2005-06

white Sc7 Bb8g8 LIg7h4e3 Pf2e2d2e5b6 RLc1 Ka1 black BLd8 Pc6b5a5d3g6 Kc5 Bd1 LIf5

#2(13+9)
g7, h4, e3, f5: Lion
c1: Rook-Lion
d8: Bishop-Lion

Solution

{

Essai :
} 1.LIe3-e1 ? threat: 2.LIg7-g1 # {
} 1...Kc5*b6 2.Bb8-a7 # {
} 1...BLd8*b6 2.Sc7-a6 # {
mais} 1...LIf5-d5 ! {

} 1.LIg7-g1 ! {[5]} threat: 2.LIe3-e1 # {
} 1...Kc5-b4 2.f2-f4 # {
} 1...Kc5*b6 2.LIe3-b3 # {
} 1...LIf5-d5 2.f2-f4 # {
} 1...BLd8*b6 2.LIe3*b6 #

12

Donner les solutions complètes.

Michal Dragoun
6 Comm feenschach
2018

white Kf6 LIe7f4 Pe3 black BLf8d3c3 RLh4c6 Pb6b5b3b2a2g6 Sa5 Kb4

h#2 4sol.(4+14)
e7, f4: Lion
f8, d3, c3: Bishop-Lion
h4, c6: Rook-Lion

Solution

{

} 1.Kb4-a3 Kf6-f7 2.RLh4-a4 LIf4*f8 # {[1.25]
} 1.Kb4-c5 LIe7-g5 2.RLh4-c4 Kf6-e5 # {[1.25]
} 1.Kb4-a4 Kf6-g5 2.BLf8-a3 LIe7*h4 # {[1.25]
} 1.Kb4-c4 LIf4-f7 2.BLf8-c5 Kf6-e6 # {[1.25]}

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ch-Fr-2023

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