Black to move. What is the best continuation for Black?
8/8/4pBP1/3kP3/3b4/p7/1rRK4/8 b – – 0 83
Kosteniuk – Karpov (World Blitz Championship 2009)
Chess Daily News from Susan Polgar
WBC chess tactic
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1. Rxc2 Kxc2
2. a2 g7
3. a1(Q) g8(Q)
4. Qc3+ Kd1
5. Qf3+ gains bishop and then captures pawn.
a2
a1
Be3
Queen the a-pawn.
oops, sorry, my last post has a terrible mistake. please ignore.
1. … Rxc2
2. Kxc2 a2
3. g7 a1Q
4. g8Q Qc3+
check, check, check until White is mate…
Thank you Susan. another tactic to study! ^_^
I think this is right:
1. … a2
if 2.Rxb2 a1(Q)
3. Rb8 Qc3+
4. Kd1 (4. Ke2 Qe3 and Q captures g5 pawn through check) Qd3+ and captures g5 pawn
if 2. g7 Rxc7
3.Kx c7 Qg1 wins
1 ..a2 2 g7 a=Q 3 g=Q Bc3+ wins
1. Rxc2 then Kxc2 forced 2. a7 and white can not stop promotion of pawn
1. … , Rxc2+
2. Kxc2, a4
3. Bd8, e7
4. Bxet, a5
and the white bishop cannot stop the promotion of the h pawn, while the black bishop controls the promotion of both the e pawn and the g pawn.
1. … a2 [to be followed by a1]
if 2.Rxb2 a1(Q)
3. Rb8 Qc3+
4. Kd1 (4. Ke2 Qe3 and Q captures g5 pawn through check) Qd3+ and captures pawn
if 2. g7 a1 (Q)
3.g8(Q) Be3+
4.Kd3 (4. Kxe3 Rxc2) Qd1+
5.Kxe3 then capture rook, gaining exchange or
a2
1. a2
2. g7 a1=Q
3. g8=Q Bc3+!