PID: 215132 (8/r1R1nKp1/8/1BBk4/6N1/6N1/2Rn1P2/3r4 w - - 0 1)
Anonymous
SEPA, 1942
#2
8 + 6
SOLUTION
SOUND
Sets
1...Rda1
2.Rxd2#
1...Rb1
2.Rxd2#
1...Rc1
2.Rxd2#
1...Re1
2.Rxd2#
1...Rf1
2.Rxd2#
1...Rg1
2.Rxd2#
1...Rh1
2.Rxd2#
1...Raa1
2.Rd7#
1...Ra2
2.Rd7#
1...Ra3
2.Rd7#
1...Ra4
2.Rd7#
1...Ra5
2.Rd7#
1...Ra8
2.Rd7#
1...Sb1
2.Bc4#
1...Sf1
2.Bc4#
1...Sb3
2.Bc4#
1...Sf3
2.Bc4#
1...Sc4
2.Bxc4#
1...Se4
2.Bc4#
1...Sf5
2.Bc6#
1...Sc6
2.Bxc6#
1...Sg6
2.Bc6#
1...Sc8
2.Bc6#
1...Sg8
2.Bc6#
Tries
1.Rc3?
threat
2.Rd3#
1...Ra3
2.Rd7#
1...Ra4
2.Rd7#
1...Sb1
2.Bc4#
1...Sf1
2.Bc4#
1...Sb3
2.Bc4#
1...Sf3
2.Bc4#
1...Sc4
2.Bxc4#
1...Se4
2.Bc4#
1...Sf5
2.Bc6#
1...Sc6
2.Bxc6#
1...Rxc7!
Keys
1.f4!
threat
2.Se3#
1...Re1
2.Rxd2#
1...Ra3
2.Rd7#
1...Sf1
2.Bc4#
1...Sc4
2.Bxc4#
1...Sf5
2.Bc6#
FEATURES
Static
TYPE = THREAT
CHANGED MATES = 0
ADDED MATES = 0
REMOVED MATES = 19
Sets
R(a);N_GUARD::R(A),XS(b)
R(a);N_GUARD,P_PINP(B)::R(A),XS(b)
R(d);N_GUARD::R(G)
S(b);N_GUARD::B(E)
S(b);N_GUARD::B(E),XS(b)
S(e);N_GUARD,P_PINR(G)::B(E)
S(e);N_GUARD,P_PINR(G)::B(E),XS(e)
Tries
Try
R(A);
Threat
R(A)
Vars
R(d);N_GUARD::R(G)
S(b);N_GUARD::B(E)
S(b);N_GUARD::B(E),XS(b)
S(e);N_GUARD,P_PINR(G)::B(E)
S(e);N_GUARD,P_PINR(G)::B(E),XS(e)
Refutation
R(d);XR(G)
Actual
P(B);
Threat
S(D)
Vars
R(a);N_GUARD::R(A),XS(b)
R(d);N_GUARD::R(G)
S(b);N_GUARD::B(E)
S(b);N_GUARD::B(E),XS(b)
S(e);N_GUARD,P_PINR(G)::B(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).