Originally posted by omulcusobolani1.b7 is as good as any other move. black wins in all variations.
Umm b7 looses instantly to Nc6+.Oups someone beat me to it.
1.Kd6 axb6! (not f2?? Re8+ Kd1 Rf8 = or f2?? Re8 Kf1 b7 +-)
1.b7 Nc6+ 2.Kd6 Rxd8+ 3.Kxc6 f2 4.Kc7 Rf8 5.b8=Q Rxb8 6.Kxb8 f1=q 7.Kxa7 Qb5 8.d5 Qxd5 9.Kb8 Qb5+ 10.Ka7 Kd2 -+
1.d5! Nc6+!! (not axb6 a7 Rxa7 Rxb8 Ra6 d6 f2 d7 f1=q d8=q with complications. or 1...Nc7+ 2.Rxc7 axb6 3.Rb7 Rxa6 4.d6 f2 d7 f1=q d8=q with similar complications) 2.dxc6 Rxd8 3.c7 Re8+ 4.Kd6 axb6 5.Kd7 Ra8 6.c8=Q Rxc8 7.Kxc8 f2 8.Kb7 f1=q -+
all other moves black should win easily.
Originally posted by aginisNope,black doesn't win,white has a better move
1.b7 is as good as any other move. black wins in all variations.
1.Kd6 axb6! (not f2?? Re8+ Kd1 Rf8 = or f2?? Re8 Kf1 b7 +-)
1.b7 Nc6+ 2.Kd6 Rxd8+ 3.Kxc6 f2 4.Kc7 Rf8 5.b8=Q Rxb8 6.Kxb8 f1=q 7.Kxa7 Qb5 8.d5 Qxd5 9.Kb8 Qb5+ 10.Ka7 Kd2 -+
1.d5! Nc6+!! (not axb6 a7 Rxa7 Rxb8 Ra6 d6 f2 d7 f1=q d8=q with complications. or 1...Nc7+ 2.Rxc7 axb6 3.Rb7 Rxa6 4.d6 ...[text shortened]... 6 axb6 5.Kd7 Ra8 6.c8=Q Rxc8 7.Kxc8 f2 8.Kb7 f1=q -+
all other moves black should win easily.
Originally posted by Gorgar1.Ke4 f2 2.b7! f1=Q 3.bxa8=q Qg2+! 4.Ke3!! Qxa8 5.d5! and now white simply maintains the opposition.
Absolutely 🙂
Since there isn't much intrest I'll give you the first move and objective.
White draws after 1.Ke4
i missed 5.d5 the first time around and then i missed 4.Ke3 the second time around.
2 edits
Originally posted by zebanoi think you mean
Clearly white must address the threat of h3
The only way i can see to do that is
1. Bd4 h3
2. f3+ gxf3
3. gxf3+ Kxf3
4. Bf4
1.Bd4 h3?
2.f3+gxf3
3.gxh3! any
4.Bf2 +-
More interesting of course is
1.Bd4 f3!
2.g3!? (2.gxf3+ Kxf3 3.Kxc4 h3 4.Be5 Kxf2 5.Kd3 g3 6.c4 h2 7.c3 h1=Q -+)
2...h3
3.Kxc4 h2
4.Kb3 h1=q
5.Kb2 Qe1
6.Bc5 Kd5
7.Bb6 Kc4
8.Bd4 Qd2!! (triangulation for zugzwang)
9.Kb1 (Ka2 Qc1 any Qxc2+ and wins.)
9...Qd1+
10.Kb2 Qe1 (zugzwang)
11.Ka2 Qc1
12.any Qxc2+ -+