Author: Heiner Marxen
Date: 10:41:44 05/06/03
Go up one level in this thread
On May 06, 2003 at 12:29:15, Olaf Jenkner wrote:
>After 4.Qg5 4... b1Q is mmate in 12.
>Black plays better 4.... g3.
>
>OJe
Chest confirms the mate in 14. (Athlon 1500+, 128MB hash, 20 minutes)
PV: Qd8 e5 Qg5 f6 Qh6 g3 fxg3 f5 Qg5 f4 Qxe5 b1=N+ Kb3 Nd2+ Kc2 Nf3 Qf5 d3+ Kc3
fxg3 Qxf3 g2 Qd1+ Ka2 Qb3+ Ka1 Qb2#
Solution tree (without duals) ...
Qd8 e5 Qg5 f6 Qh6 f5 Qg5 ...+10
g3 fxg3 ...+10
e4 Qxf6 ...+8
b1=Q Qd2 ...+6
d3 Qe3 ...+6
b1=N+ Kb3 ...+2
b1=R Qd2 ...+2
Kb1 Qd2 ...+1
b1=B Qc1 ...+1
f5 h6 g3 fxg3 ...+8
f4 Qxe5 ...+7
b1=N+ Kb3 ...+6
d3 h7 ...+6
e4 Qg7 ...+6
b1=Q Qd2 ...+5
b1=R Qd2 ...+2
Kb1 Qd2 ...+1
b1=B Qc1 ...+1
e4 Qd5 b1=N+ Kb3 ...+6
Kb1 Qc5 ...+3
b1=Q Qxd4+ ...+1
b1=B Qxd4#
-*- Qa2#
g3 Qxe5 b1=N+ Kb3 ...+6
Kb1 Kb3 ...+2
b1=Q Qxd4+ ...+1
b1=R Qxd4+ ...+1
b1=B Qxd4#
d3 Qxb2#
-*- Qxd4 ...+1
b1=Q Qd2 f5 h6 ...+5
f6 h6 ...+5
g3 fxg3 ...+4
Qb3+ Kxb3 ...+1
Qc2 Qxc2 ...+1
Qd3+ Qxd3 ...+1
Qxb4+ Qxb4 ...+1
d3 Qc3+ ...+1
e4 Qxd4+ ...+1
Qa2+ Qxa2#
Qb2+ Qxb2#
Qc1+ Qxc1#
Qd1 Qxd1#
Qe1 Qxe1#
-*- Qa2#
b1=N+ Kb3 Na3 Qc1+ ...+1
Nc3 Qc1+ ...+1
Nd2+ Qxd2 ...+1
-*- Qc1 ...+1
b1=R Qd2 Rb3+ Kxb3 ...+1
Rb2 Qxb2#
Rc1 Qxc1#
Rd1 Qxd1#
Re1 Qxe1#
-*- Qa2#
Kb1 Qd2 Ka1 Qxb2#
-*- Qd1#
b1=B Qc1 =*= Qb2#
d3 Qxe5 =*= Qxb2#
Kb1 h6 Kc1 Qc7+ Kb1 Kb3 ...+4
-*- Kxb2 ...+6
Kc2 Qc7+ Kb1 Kb3 ...+4
-*- Kxb2 ...+6
e5 h7 Kc1 Qc8+ ...+6
Kc2 Qc8+ ...+6
g3 h8=Q ...+6
d3 Qxd3+ ...+4
e4 Qxd4 ...+4
-*- h8=Q ...+5
f6 h7 Kc1 Qc8+ ...+6
Kc2 Qc8+ ...+6
d3 Qxd3+ ...+4
f5 Qxd4 ...+4
Ka1 Qxd4 ...+1
-*- h8=Q ...+5
d3 Qc8 d2 Qc3 ...+5
-*- Qc3 ...+1
Ka1 Qxd4 Kb1 Qd1#
-*- Qxb2#
-*- Qxd4 Kc2 Qxb2+ ...+5
Kc1 Qxb2+ ...+4
Ka1 Qxb2#
-*- Qd1#
b1=N+ Kb3 Nd2+ Kc2 d3+ Qxd3 ...+3
Nb1 Qa8+ ...+1
Nb3 Qa8+ ...+1
Nc4 Qa8+ ...+1
-*- Qa5#
Nc3 Qa8+ Kb1 Qh1+ ...+1
Na2 Qxa2#
Na4 Qh1#
Na3 Qxd4+ Kb1 Qd1#
-*- Qa8+ Na3 Qxa3+ ...+1
b1=Q Qxd4+ Qb2+ Qxb2#
b1=R Qxd4+ Rb2 Qxb2#
d3 Qd4 =*= Qxb2#
b1=B Qxd4#
-*- Qxd4 Kb1 Qd1#
-*- Qxb2#
Cheers,
Heiner
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