PID: 186675 (1b1N1B2/3N4/7n/3k1b2/3p1pQ1/1p3R2/B7/7K w - - 0 1)
Henry, S
Chess, 1960
#2
7 + 7
SOLUTION
SOUND
Sets
1...Bb1
2.Qe6#
1...Bc2
2.Qe6#
1...Bd3
2.Qe6#
1...Be4
2.Bxb3#
2.Qe6#
1...Be6
2.Qxe6#
1...Bg6
2.Qe6#
1...Bh7
2.Qe6#
Tries
1.Qxf5+?
1...Kc4
2.Sb6#
2.Bxb3#
2.Qc5#
1...Be5
2.Sb6#
2.Bxb3#
1...Sxf5!
Keys
1.Rxb3!
threat
2.Re3#
1...Be4+
2.Rf3#
1...Kc4
2.Sb6#
1...Ke4
2.Qf3#
1...d3
2.Rb4#
1...Bb1
2.Qe6#
1...Bc2
2.Qe6#
1...Bd3
2.Qe6#
FEATURES
Static
TYPE = THREAT
CHANGED MATES = 0
ADDED MATES = 4
REMOVED MATES = 3
Sets
B(e);OGATE::QAB1(D)
B(e);OGATE::QAB1(D),XB(e)
Tries
Try
Q(D);CHECK,XB(e)
Refutation
S(f);XQ(D)
Actual
R(C);XP(a)
Threat
B(B)+R(C)
Vars
B(e);CHECK,SBLOCK::B(B)+R(C)
K(d);S_FLIGHT::S(E)
K(d);P_SPINP(c),S_FLIGHT::QAB1(D)
P(b);::B(B)+R(C)
B(e);OGATE::QAB1(D)
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).