py_20071002

{

} a) {

} 1.Bd1-g4 b7*a8=Q[wQa8->d1] 2.Se5-c4 Qd1-f3 #{

} b) +wRg5 {

} 1.Qb5-c6 b7*a8=R[wRa8->h1] 2.Se5*g6[bSg6->g8] Rh1-h4 #{

} c) +wBg5 {

} 1.d3-d2 b7*a8=B[wBa8->f1] 2.Kd5-e6 Bf1-c4 #{

} d) +wSg5 {

} 1.Qb5-e8 b7*a8=S[wSa8->b1] 2.Kd5-e4 Sb1-c3 #

{

} 1.Re7-h7 ! zugzwang. 1...Rh3*d3{
} 2.Kf6-e7 zugzwang. 2...Rd3-d8{
} 3.Qf2-a2 + 3...Bb1*a2{
} 4.Rh7-h4 + 4...Be1*h4 #{

} 1...Rh3*h7 2.Qf2-h4 + 2...Be1*h4 +{
} 3.Kf6-g6 threat: 4.Bd3-c2 + 4...Bb1*c2 #{
}