Section B1 Min Win
1.Ne4
( 1.Qa8+ ? Rd5+ !!
( 1…Kg1 {/Rh2} 2.Qg8+ +- {/Dh8} )
2.Qxd5+ Kh2 ! 3.Ne4 Re1 ! 4.Qd2 Rxe4+ ! 5.Kxe4 Kh1 !!
( 5…Kg1 ? 6.Kf3 ! f1=Q+ 7.Kg3 +- )
6.Qd1+ Kg2 7.Qf3+ Kg1 8.Qg3+ Kh1 ! 9.Qxf2 {Stalemate} )
1…Rde1
( 1…Rd8 2.Qe2 !
( 2.Nxf2+ ? Rxf2 ! = )
2…Re1 3.Qf3+ ! Kg1 4.Qxf2+ +- )
( 1…Rfe1 2.Qxf2 +- )
2.Qd5 !
( 2.Qa8 ? Rxe4+ ! 3.Kxe4 ! Ra1 !! 4.Qxa1+ Kg2 5.Ke3 f1=Q = )
2…Rxe4+ !
( 2…Kg1 3.Qg8+ Kh2 4.Qg3+ Kh1 5.Qh4+ !
( 5.Kf4 ? Rxe4+ ! 6.Kf3 ! Re3+ ! 7.Kxe3 Re1+ 8.Kxf2 Re2+ ! 9.
Kxe2 {Stalemate} )
5…Kg2 6.Qg5+ !
( 6.Qg4+ ? Kh2 7.Kf4 Rxe4+ ! 8.Kxe4 Re1+ = )
6…Kh1
( 6…Kf3 7.Qg3+ Ke2 8.Nc3+ Kd2+ 9.Kd4 +- )
7.Kf4 ! {Only now! White can only make this move when the queen is on
the square g5.} 7…Rxe4+ ! 8.Kf3 !
( 8.Kxe4 ?? Re1+ -+ )
8…Rg1
( 8…Rf4+ 9.Qxf4 +- )
9.Qh5+ {/Dh6} 9…Rh4 10.Qxh4# )
( 2…Rg1 3.Kf4 !! f1=Q+ 4.Nf2+ Kh2 5.Qh5+ +- )
( 2…Kh2 3.Qd2 {/Dd6} 3…Kh1 4.Qh6+ +- {main line} )
3.Kxe4 !
( 3.Qxe4+ ? Kh2 = {/Rg1} )
3…Rd1 !
( 3…Re1+ 4.Kf3 !! f1=Q+ 5.Kg3+ Kg1 6.Qc5+ Kh1 7.Qh5+ Kg1 8.Qh2# )
4.Qh5+ !
( 4.Qxd1+ ? Kg2 5.Qf3+ Kg1 6.Qg3+ Kh1 7.Qxf2 {Stalemate} )
4…Kg1 5.Qg4+ Kh2 6.Qf4+ Kg2 7.Qf3+ Kg1 8.Qg3+ Kf1 9.Ke3 !
( 9.Qh3+ ? Kg1 {Loss of time} )
9…Rd2 ! 10.Qh2 !
( 10.Kxd2 ? {Stalemate} )
10…Ra2 11.Qh1# 1-0