Мат в 4 хода
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1.Rg5-g4 ! zugzwang.
1...Sd6-b5
2.Rg4-a4 threat:
3.Ra4-a8 #
2...Sb5-a7
3.Ra4*a7 threat:
4.Ra7-a8 #
1...Sd6-c4
2.Rg4*c4 threat:
3.Rc4-a4 threat:
4.Ra4-a8 #
3.Rc4-b4 zugzwang.
3...Kc8-d8
4.Rb4-b8 #
2...Kc8-d8
3.Rc4-a4 threat:
4.Ra4-a8 #
3.Rc4-e4 threat:
4.Re4-e8 #
2...Kc8-b8
3.Rc4-a4 threat:
4.Ra4-a8 #
1...Sd6-e4
2.Rg4*e4 threat:
3.Re4-e8 #
2...Kc8-b8
3.Re4-a4 threat:
4.Ra4-a8 #
1...Sd6-f5
2.Rg4-a4 threat:
3.Ra4-a8 #
1...Sd6-f7
2.Rg4-a4 threat:
3.Ra4-a8 #
1...Sd6-e8
2.Rg4-a4 threat:
3.Ra4-a8 #
1...Sd6-b7
2.Rg4-a4 threat:
3.Ra4-a8 #
2...Sb7-a5
3.Ra4*a5 threat:
4.Ra5-a8 #
2...Kc8-b8
3.Ra4-a6 zugzwang.
3...Sb7-a5
4.Ra6-a8 #
3...Sb7-c5
4.Ra6-a8 #
3...Sb7-d6
4.Ra6-a8 #
3...Sb7-d8
4.Ra6-a8 #
3...Kb8-c8
4.Ra6-a8 #
1...Kc8-d8
2.Rg4-g8 zugzwang.
2...Sd6-f5
3.Kf8-f7 #
2...Sd6-b5
3.Kf8-f7 #
2...Sd6-c4
3.Kf8-f7 #
2...Sd6-e4
3.Kf8-f7 #
2...Sd6-f7
3.Kf8*f7 #
2...Sd6-e8
3.Kf8-f7 threat:
4.Rg8*e8 #
2...Sd6-c8
3.Kf8-f7 #
2...Sd6-b7
3.Kf8-f7 #
2...Kd8-c8
3.Kf8-g7 +
3...Sd6-e8 +
4.Rg8*e8 #
3.Kf8-e7 +
3...Sd6-e8
4.Rg8*e8 #
1...Kc8-b8
2.Rg4-a4 threat:
3.Ra4-a8 #
2...Sd6-b7
3.Ra4-a6 zugzwang.
3...Sb7-a5
4.Ra6-a8 #
3...Sb7-c5
4.Ra6-a8 #
3...Sb7-d6
4.Ra6-a8 #
3...Sb7-d8
4.Ra6-a8 #
3...Kb8-c8
4.Ra6-a8 #
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