Section B1 – Min Win
1.f7 Kg6 2.e8=Q Kf6
( 2…Rh1+ 3.Ka2 Rh2+ 4.Ka3 Rh3+ 5.Ka4 Rh4+ 6.Ka5 Rh5+ 7.Ka6 )
3.Ka2 Rf8 4.Ka3 Rh8 5.Ka4 Rf8 6.Ka5 Rh8 7.Ka6 Rf8 8.Ka7 Rd8 9.Kb6 Rh8 10.
Kc7 Ra8 11.d8=Q+
{[Promoting is the only way to win]}
11…Rxd8 12.Kxd8
{+ +-}
( 12.Qxd8+ {?} 12…Rxd8 {!} 13.Kxd8 Kxf7 {! Insufficient material} )
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