PID: 186648 (4R3/6Q1/4q3/2npN3/1P1k3p/N2b4/3B4/4K3 w - - 0 1)
Henry, S
Chess, 1960
#2
7 + 6
SOLUTION
SOUND
Sets
1...Qh3
2.Sf3#
2.Sec4#
2.Sg4#
2.Sc6#
2.Sg6#
2.Sd7#
2.Sf7#
1...Qg4
2.Sf3#
2.Sxg4#
2.Sc6#
2.Sg6#
1...Qf5
2.Sf3#
2.Sc6#
1...Qd7
2.Sf3#
2.Sc6#
2.Sxd7#
2.Sf7#
1...Qf7
2.Sf3#
2.Sc6#
2.Sxf7#
1...Qc8
2.Sf3#
2.Sec4#
2.Sg4#
2.Sc6#
2.Sg6#
2.Sd7#
2.Sf7#
1...Qg8
2.Sf3#
2.Sc6#
1...Qxe5+
2.Qxe5#
1...Qa6
2.Sf3#
2.Sc6#
1...Qb6
2.Sf3#
2.Sc6#
1...Qc6
2.Sf3#
2.Sxc6#
1...Qd6
2.Sf3#
2.Sc6#
1...Qf6
2.Sf3#
2.Sc6#
1...Qg6
2.Sf3#
2.Sc6#
2.Sxg6#
1...Qh6
2.Sf3#
2.Sc6#
1...Be4
2.Sb5#
1...Se4
2.Sf3#
2.Sc6#
Tries
1.Qg3?
threat
2.Qe3#
1...Qxe5+
2.Qxe5#
1...Ke4
2.Qf4#
1...Qh3
2.Sf3#
2.Sc6#
1...Qh6
2.Sf3#
1...Be4
2.Sb5#
2.Bc3#
2.Qc3#
1...Se4
2.Sf3#
1...hxg3!
1.Qg4+?
1...Kxe5
2.Qf4#
1...Qxg4
2.Sc6#
1...Se4
2.Sf3#
1...Be4!
Keys
1.Qg5!
threat
2.Qe3#
1...Qxe5+
2.Qxe5#
1...Ke4
2.Qf4#
1...Be4
2.Sb5#
1...Qh3
2.Sc6#
1...Qh6
2.Sf3#
1...Se4
2.Sf3#
FEATURES
Static
TYPE = THREAT
CHANGED MATES = 0
ADDED MATES = 4
REMOVED MATES = 0
Sets
Q(f);CHECK,OGATE,P_SPINQ(f),XS(E)::QAB1(F),XQ(f)
B(a);N_GUARD,N_PINS(E),SBLOCK::S(C)
Tries
Try
Q(F);
Threat
QAB1(F)
Vars
Q(f);CHECK,OGATE,XS(E)::QAB1(F),XQ(f)
K(b);N_PINS(E),P-FLIGHT::QAR1(F)
Q(f);N_PINS(E)::S(E)
S(d);N_PINS(E),SBLOCK::S(E)
Refutation
P(c);XQ(F)
Try
Q(F);CHECK
Vars
K(b);P_SPINQ(f),S_FLIGHT,XS(E)::QAB1(F)
Q(f);N_PINS(E),XQ(F)::S(E)
S(d);N_PINS(E),P_SPINS(d)::S(E)
Refutation
B(a);N_PINS(E),P_SPINB(a)
Actual
Q(F);
Threat
QAB1(F)
Vars
Q(f);CHECK,OGATE,XS(E)::QAB1(F),XQ(f)
K(b);N_PINS(E),P-FLIGHT::QAR1(F)
B(a);N_GUARD,N_PINS(E),SBLOCK::S(C)
Q(f);N_PINS(E)::S(E)
S(d);N_PINS(E),SBLOCK::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).