py_20100413
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s#4 Andernach Madrasi
: capturing unit change color (excepted Kings) : two opposed units of same kind which observe each other are paralyzed
white Qe5 Pe7g5a7 Rh8 Bb1 Kh7
black Pg7g6c7 Kf7
s#4 Antdernach Madrasi(7+4)
{}
1.e7-e8=R ! {zugzwang}
1...c7-c5{}
2.a7-a8=B zugzwang.
2...c5-c4{}
3.Ba8-e4 zugzwang.
3...c4-c3{}
4.Be4*g6=b
4...c3-c2 #{}
1...c7-c6{}
2.a7-a8=Q zugzwang.
2...c6-c5{}
3.Qa8-a1 zugzwang.
3...c5-c4{}
4.Qe5*g7=b
4...c4-c3 #
aidé 3,5 provocative
: a unit can capture only if observed by an opponent's unit on the departure square
white Pd6 Rc3 Bd3 Kf3
black Bc8 Ke8 Qc2 Pb7d7a6b5e6e5f4g6 Sd4 Rb6
h#3,5 provocative(4+13)2 solutions
{}
1...Rc3-c6 2.Qc2-c1 Bd3-c2 3.Sd4-f5 Rc6*c8 4.Sf5-h4 Bc2*g6 #{}
1...Bd3-f5 2.Qc2-b1 Rc3-c2 3.Sd4-c6 Bf5*g6 4.Sc6-a7 Rc2*c8 #
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