Definition: (click to show/hide)
Grid Сhess: The board is divided not only into its usual 64 squares, but also into 16 larger squares consisting of 4 normal squares each. All moves by both sides must cross at least one line of the grid. Illegal are all settings with white or black King on the squares ‘a1’, ‘h1’, ‘a8’ and ‘h8’.
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No.1094 Dieter Müller
Germany
original – 09.07.2016
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Solution: (click to show/hide)
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white Kd2 Sc4h3 Bf8
black Kd4 Pf6
#5v (4+2)
Grid Chess
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1.Sh3-g1 ? {A} zugzwang.
1...Kd4-e4
2.Sc4-e3 {B} zugzwang.
2...Ke4-e5
3.Kd2-d3 {C} threat:
4.Sg1-f3 + {D}
4...Ke5-f4
5.Bf8-d6 # {E}
3...Ke5-f4
4.Bf8-d6 + {E}
4...Kf4-g5
5.Sg1-f3 # {D}
2...Ke4-d4
3.Kd2-d3 {C} threat:
4.Sg1-f3 #
3...Kd4-e5
4.Sg1-f3 + {D}
4...Ke5-f4
5.Bf8-d6 # {E}
but
1...Kd4-d5 !
1.Kd2-d3 ? {C} threat:
2.Sc4-e3 {B} threat:
3.Sh3-g1 {A} threat:
4.Sg1-f3 # {D}
3...Kd4-e5
4.Sg1-f3 + {D}
4...Ke5-f4
5.Bf8-d6 # {E}
but
1...Kd4-d5 !
1.Sc4-e3 ! {B} threat:
2.Kd2-d3 {C} threat:
3.Sh3-g1 {A} threat:
4.Sg1-f3 # {D}
3...Kd4-e5
4.Sg1-f3 + {D}
4...Ke5-f4
5.Bf8-d6 # {E}
1...Kd4-e4
2.Sh3-g1 {A} zugzwang.
2...Ke4-d4
3.Kd2-d3 threat:
4.Sg1-f3 # {D}
3...Kd4-e5
4.Sg1-f3 + {D}
4...Ke5-f4
5.Bf8-d6 # {E}
2...Ke4-e5
3.Kd2-d3 {C} threat:
4.Sg1-f3 + {D}
4...Ke5-f4
5.Bf8-d6 # {E}
3...Ke5-f4
4.Bf8-d6 + {E}
4...Kf4-g5
5.Sg1-f3 # {D
(C+ by Popeye 4.75)}
Miniatur
zyklischer Zugwechsel ABC – BCA
Zugwechsel ABC - CBA
reziproker Zugwechsel DE - ED
weißer Aristokrat (Author)
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