PID: 186190 (2R3n1/6bQ/2prp3/P1k5/K1N5/1p1RPBB1/1P1NP2q/3b4 w - - 0 1)
Henry, S
Chess, 1959
#2
12 + 9
SOLUTION
SOUND
Sets
1...Qg1
2.Bxd6#
1...Qh1
2.Bxd6#
1...Qxe2
2.Bxd6#
1...Qf2
2.Bxd6#
1...Qg2
2.Bxd6#
1...Qh3
2.Bxd6#
1...Qh4
2.Bxd6#
1...Qh5
2.Bxd6#
1...Qh6
2.Bxd6#
1...Qxh7
2.Bxd6#
1...Rxd3
2.Rxc6#
1...Rd4
2.Rxc6#
1...Rd7
2.Rxc6#
1...Rd8
2.Rxc6#
1...Bxb2
2.Qa7#
1...Bc3
2.Qa7#
1...Bd4
2.Qa7#
1...Be5
2.Qa7#
1...Bf6
2.Qa7#
1...Bh6
2.Qa7#
1...Bf8
2.Qa7#
1...Bh8
2.Qa7#
Tries
1.Sxd6?
threat
2.S2e4#
2.S6e4#
2.Sb7#
2.Rxc6#
1...Qxh7
2.Sb7#
2.Rxc6#
1...Bd4
2.Sb7#
2.Rxc6#
2.Qa7#
2.exd4#
1...Sf6
2.Sb7#
2.Rc3#
2.Rxc6#
1...Se7
2.S2e4#
2.S6e4#
2.Sb7#
1...Qh4+!
1.Qxg7?
threat
2.Qa7#
1...Qh7
2.Bxd6#
1...Rd7
2.Rxc6#
1...Se7!
Keys
1.Rc3!
threat
2.Se5#
1...Qxe2
2.Bxd6#
1...Rxd2
2.Rxc6#
1...Bxe2
2.Sxb3#
1...Bxc3
2.Qa7#
1...Qh4
2.Bxd6#
1...Rd3
2.Rxc6#
1...Rd4
2.Rxc6#
1...Rd5
2.Se4#
1...Rd7
2.Rxc6#
1...Rd8
2.Rxc6#
1...Bd4
2.Qa7#
1...Be5
2.Sxe5#
2.Qa7#
1...e5
2.Sa3#
2.Sxe5#
2.Sb6#
FEATURES
Static
TYPE = THREAT
CHANGED MATES = 0
ADDED MATES = 3
REMOVED MATES = 14
Sets
Q(b);N_GUARD::B(G),XR(f)
Q(b);N_GUARD,XP(C)::B(G),XR(f)
Q(b);N_GUARD,P_PINS(I)::B(G),XR(f)
Q(b);N_GUARD,XQ(K)::B(G),XR(f)
R(f);N_GUARD,XR(D)::R1(L),XP(e)
R(f);N_GUARD,P_PINS(I)::R1(L),XP(e)
R(f);N_GUARD::R1(L),XP(e)
B(h);OGATE,XP(A)::QAB(K)
B(h);OGATE::QAB(K)
Tries
Try
S(I);XR(f)
Threat
DUALS(4)
Refutation
Q(b);CHECK
Try
Q(K);XB(h)
Threat
QAB(K)
Vars
Q(b);N_GUARD::B(G),XR(f)
R(f);N_GUARD::R1(L),XP(e)
Refutation
S(i);
Actual
R(D);
Threat
R(D)+S(I)
Vars
Q(b);N_GUARD,XP(C)::B(G),XR(f)
R(f);N_GUARD,XS(B)::R1(L),XP(e)
B(a);N_GUARD,XP(C)::S(B),XP(c)
B(h);OGATE,XR(D)::QAB(K)
Q(b);N_GUARD,P_PINS(I)::B(G),XR(f)
R(f);N_GUARD::R1(L),XP(e)
R(f);N_GUARD,P_PINS(I)::R1(L),XP(e)
R(f);SBLOCK::S(B)
B(h);OGATE::QAB(K)
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).