PID: 68344 (b7/8/1Q6/3k1K2/2p2n2/8/4P1N1/2bBr3 w - - 0 1)
Homer, WE
Chess, 1949
#2
5 + 6
SOLUTION
SOUND
Sets
1...Rxd1
2.e4#
1...Rf1
2.e4#
1...Rg1
2.e4#
1...Rh1
2.e4#
1...Bb2
2.Se3#
2.Sxf4#
1...Ba3
2.Se3#
2.Sxf4#
1...Be3
2.Sxe3#
1...c3
2.Bb3#
Tries
1.Qb5+?
1...Kd4
2.Qe5#
1...Kd6!
Keys
1.e3!
threat
2.Sxf4#
2.Bf3#
1...Rxd1
2.Sxf4#
2.e4#
1...Rxe3
2.Sxf4#
1...Bxe3
2.Bf3#
1...Sxg2
2.Bf3#
1...Bc6
2.Qd4#
1...c3
2.Bb3#
1...Rf1
2.e4#
1...Re2
2.Sxf4#
1...Se2
2.e4#
1...Sd3
2.Bf3#
1...Sh3
2.Bf3#
1...Sh5
2.Bf3#
1...Se6
2.Bf3#
1...Sg6
2.Bf3#
FEATURES
Static
TYPE = THREAT
CHANGED MATES = 1
ADDED MATES = 10
REMOVED MATES = 3
Sets
R(b);N_GUARD,XB(A)::P(B)
R(b);N_GUARD::P(B)
B(a);N_GUARD::S(C),XB(a)
P(c);OGATEB::B(A)
Tries
Try
Q(E);CHECK
Vars
K(e);OGATE,P-FLIGHT::QAB1(E)
Refutation
K(e);P-FLIGHT
Actual
P(B);
Threat
DUALS(2)
Vars
R(b);XP(B)::S(C),XS(d)
B(a);XP(B)::B(A)
S(d);XS(C)::B(A)
B(f);SBLOCK::QAR1(E)
P(c);OGATEB::B(A)
R(b);N_GUARD::P(B)
R(b);::S(C),XS(d)
S(d);S_CUTR(b)::P(B)
S(d);::B(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).