PID: 77647 (6K1/1B6/1p6/4k3/4N3/Q5P1/8/8 w - - 0 1)
Zurov, N
Snamya, 1983
#2
5 + 2
SOLUTION
SOUND
Sets
1...Kd4
2.Qc3#
Tries
1.Kf7?
1...Kd4
2.Qc3#
1...b5
2.Qc5#
1...Kf5!
1.Qc5+?
1...Ke6
2.Bc8#
1...bxc5!
1.Qb3?
threat
2.Qd5#
1...Kd4
2.Qc3#
1...Kf5!
1.Qf3?
threat
2.Qf6#
1...Kd4
2.Qc3#
1...Ke6!
Keys
1.g4!
threat
2.Qd6#
1...Kd4
2.Qc3#
1...Kf4
2.Qg3#
1...Ke6
2.Qd6#
FEATURES
Static
TYPE = THREAT
CHANGED MATES = 0
ADDED MATES = 2
REMOVED MATES = 0
Sets
K(a);S_FLIGHT::QAB1(A)
Tries
Try
K(E);S_FLIGHT
Vars
K(a);S_FLIGHT::QAB1(A)
P(b);N_GUARD::QAR2(A)
Refutation
K(a);P-FLIGHT
Try
Q(A);CHECK
Vars
K(a);P-FLIGHT::B(D)
Refutation
P(b);XQ(A)
Try
Q(A);
Threat
QAR1(A)
Vars
K(a);S_FLIGHT::QAB1(A)
Refutation
K(a);P-FLIGHT
Try
Q(A);
Threat
QAB1(A)
Vars
K(a);S_FLIGHT::QAB1(A)
Refutation
K(a);P-FLIGHT
Actual
P(B);
Threat
QAB1(A)
Vars
K(a);S_FLIGHT::QAB1(A)
K(a);P-FLIGHT::QAR1(A)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).