py_20100330
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aidé de série 28 coups Circé échange (PWC)
white Pe1 Bd2
black Ke2
ser-h#28 Circé échange (PWC)(2+1)2(!) solutions
{}
1.Ke2*d2[+wBe2] 2.Kd2*e1[+wPd2] 3.Ke1-f2 4.Kf2*e2[+wBf2]
5.Ke2-d3 6.Kd3*d2[+wPd3] 7.Kd2-e2 8.Ke2-f3
9.Kf3*f2[+wBf3] 10.Kf2-e3 11.Ke3-d4 12.Kd4*d3[+wPd4]
13.Kd3-e3 14.Ke3*f3[+wBe3] 15.Kf3-e2 16.Ke2*e3[+wBe2]
17.Ke3-e4 18.Ke4-d5 19.Kd5*d4[+wPd5] 20.Kd4-c5
21.Kc5*d5[+wPc5] 22.Kd5-c6 23.Kc6*c5[+wPc6] 24.Kc5-b6
25.Kb6*c6[+wPb6] 26.Kc6-b7 27.Kb7*b6[+wPb7] 28.Kb6-a7 b7-b8=Q #{}
1.Ke2-d1 2.Kd1*d2[+wBd1] 3.Kd2*e1[+wPd2] 4.Ke1-f2
5.Kf2-g3 6.Kg3-f4 7.Kf4-e4 8.Ke4-d3
9.Kd3*d2[+wPd3] 10.Kd2-c1 11.Kc1*d1[+wBc1] 12.Kd1-c2
13.Kc2-c3 14.Kc3-d4 15.Kd4*d3[+wPd4] 16.Kd3-e4
17.Ke4*d4[+wPe4] 18.Kd4-e5 19.Ke5*e4[+wPe5] 20.Ke4-f5
21.Kf5*e5[+wPf5] 22.Ke5-f6 23.Kf6*f5[+wPf6] 24.Kf5-g6
25.Kg6*f6[+wPg6] 26.Kf6-g7 27.Kg7*g6[+wPg7] 28.Kg6-h7 g7-g8=Q #
inverse 7 coup maximum Circé
Michael GRUSHKOPhénix, 2003
white Qf4 Pf6 Ke5
black Pe6 Kd8 Bb1f2
s#7 Maximum Circé(3+4)2 solutions
{}
1.f6-f7 ! threat:
2.f7-f8=Q +
2...Kd8-c7
3.Qf8-c8 +
3...Kc7-b6
4.Qc8-d7 zugzwang.
4...Bb1-h7
5.Ke5-d6 zugzwang.
5...Bh7-b1
6.Qf4-e5 zugzwang.
6...Bb1-h7
7.Qd7*h7[+bBc8]
7...Bf2-c5 #{}
4.Qc8-h8 zugzwang.
4...Bb1-h7
5.Ke5-d6 zugzwang.
5...Bh7-b1
6.Qf4-e5 zugzwang.
6...Bb1-h7
7.Qh8*h7[+bBc8]
7...Bf2-c5 #{}
4.Qc8-g8 zugzwang.
4...Bb1-h7
5.Ke5-d6 zugzwang.
5...Bh7-b1
6.Qf4-e5 zugzwang.
6...Bb1-h7
7.Qg8*h7[+bBc8]
7...Bf2-c5 #{}
4.Ke5-d6 threat:
5.Qf4-e5 threat:
6.Qc8-d7 zugzwang.
6...Bb1-h7
7.Qd7*h7[+bBc8]
7...Bf2-c5 #{}
6.Qc8-h8 zugzwang.
6...Bb1-h7
7.Qh8*h7[+bBc8]
7...Bf2-c5 #{}
6.Qc8-g8 zugzwang.
6...Bb1-h7
7.Qg8*h7[+bBc8]
7...Bf2-c5 #{}
5...Bb1-h7
6.Qc8-c2 threat:
7.Qc2*h7[+bBc8]
7...Bf2-c5 #{}
6...Bh7*c2[+wQd1]
7.Qd1*c2[+bBc8]
7...Bf2-c5 #{}
3.Qf8-h8 zugzwang.
3...Bb1-h7
4.Qf4-f7 +
4...Kc7-b6
5.Ke5-d6 zugzwang.
5...Bh7-b1
6.Qh8-e5 zugzwang.
6...Bb1-h7
7.Qf7*h7[+bBc8]
7...Bf2-c5 #{}
3.Qf4-f7 +
3...Kc7-b6
4.Qf8-g7 zugzwang.
4...Bb1-h7
5.Ke5-d6 zugzwang.
5...Bh7-b1
6.Qg7-e5 zugzwang.
6...Bb1-h7
7.Qf7*h7[+bBc8]
7...Bf2-c5 #{}
4.Qf8-h8 zugzwang.
4...Bb1-h7
5.Ke5-d6 zugzwang.
5...Bh7-b1
6.Qh8-e5 zugzwang.
6...Bb1-h7
7.Qf7*h7[+bBc8]
7...Bf2-c5 #{}
4.Ke5-d6 zugzwang.
4...Bb1-h7
5.Qf8-g7 zugzwang.
5...Bh7-b1
6.Qg7-e5 zugzwang.
6...Bb1-h7
7.Qf7*h7[+bBc8]
7...Bf2-c5 #{}
5.Qf8-h8 zugzwang.
5...Bh7-b1
6.Qh8-e5 zugzwang.
6...Bb1-h7
7.Qf7*h7[+bBc8]
7...Bf2-c5 #{}
1.Ke5*e6[+bPe7] ! zugzwang.
1...Bb1-h7{}
2.Qf4-c7 +
2...Kd8*c7[+wQd1]{}
3.Qd1-d6 +
3...e7*d6[+wQd1]{}
4.Ke6-e7 zugzwang.
4...Bh7-b1{}
5.Qd1-c2 +
5...Bf2-c5{}
6.Qc2-g6 zugzwang.
6...Bb1*g6[+wQd1]{}
7.Qd1*d6[+bPd7] +
7...Bc5*d6[+wQd1] #
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