PID: 64068 (8/2pB4/4P1pr/4k1p1/2K3P1/B1N1P1N1/6pQ/7r w - - 0 1)
Roels, C
Chess, 1946
#2
9 + 7
SOLUTION
SOUND
Sets
1...Ra1
2.Sh5#
1...Rb1
2.Sh5#
1...Rc1
2.Sh5#
1...Rd1
2.Sh5#
1...Re1
2.Sh5#
1...Rg1
2.Sh5#
Keys
1.Bb2!
threat
2.Sce4#
2.Sb5#
1...Kd6
2.Sf5#
1...Kf6
2.Sd5#
1...Rb1
2.Sh5#
1...Rc1
2.Sh5#
1...Rd1
2.Sh5#
FEATURES
Static
TYPE = THREAT
CHANGED MATES = 0
ADDED MATES = 2
REMOVED MATES = 3
Sets
R(a);N_GUARD::QAB(A)+S(E)
R(a);N_GUARD,P_PINS(C)::QAB(A)+S(E)
Actual
B(B);
Threat
DUALS(2)
Vars
K(c);S_FLIGHT::QAB(A)+S(E),DCHECK
K(c);S_FLIGHT::B(B)+S(C),DCHECK
R(a);N_GUARD::QAB(A)+S(E)
R(a);N_GUARD,P_PINS(C)::QAB(A)+S(E)
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).