PID: 186193 (1n2B3/q6N/Pp4R1/2nkp2p/1Bpb4/8/2N1Q2K/3R3b w - - 0 1)
Henry, S
Chess, 1959
#2
9 + 10
SOLUTION
SOUND
Sets
1...Be4
2.Se3#
1...Sb3
2.Rd6#
1...Sd3
2.Rd6#
1...Sa4
2.Rd6#
1...Se4
2.Se3#
1...Scxa6
2.Rd6#
1...Se6
2.Sf6#
1...Sb7
2.Bf7#
1...Scd7
2.Bf7#
2.Rd6#
1...Sbxa6
2.Bc6#
1...Sc6
2.Bxc6#
1...e4
2.Qxh5#
Tries
1.Sg5?
threat
2.Se3#
1...Sd3
2.Rd6#
1...e4!
1.Bb5?
threat
2.Bxc4#
1...e4
2.Qxh5#
1...Sd3
2.Rd6#
1...Se6
2.Sf6#
1...c3
2.Bc4#
1...Qxa6!
1.Qf3+?
1...Se4
2.Se3#
2.Rd6#
1...e4
2.Qxh5#
2.Qf5#
1...Bxf3!
1.Qg4?
threat
2.Se3#
1...e4
2.Qf5#
2.Qxh5#
2.Qg5#
1...Sd3
2.Sf6#
2.Rd6#
1...hxg4!
1.Qg2+?
1...Se4
2.Se3#
2.Rd6#
1...e4
2.Qg5#
1...Bxg2!
1.Qe4+?
1...Bxe4
2.Se3#
1...Sxe4
2.Se3#
1...Kxe4!
Keys
1.Ba3!
threat
2.Sb4#
1...Scxa6
2.Rd6#
1...Sbxa6
2.Bc6#
1...e4
2.Qxh5#
1...Sb3
2.Rd6#
1...Sd3
2.Rd6#
1...Sa4
2.Rd6#
1...Se4
2.Se3#
1...Se6
2.Sf6#
1...Sb7
2.Bf7#
1...Scd7
2.Bf7#
2.Rd6#
1...Sc6
2.Bxc6#
FEATURES
Static
TYPE = THREAT
CHANGED MATES = 0
ADDED MATES = 0
REMOVED MATES = 1
Sets
B(a);SBLOCK::S(B)
S(d);::R1(G)
S(d);N_SPINB(c)::R1(G)
S(d);SBLOCK::S(B)
S(d);XP(F)::R1(G)
S(d);SBLOCK::S(H)
S(d);N_GUARD,S_CUTQ(i)::B(I)
S(j);N_GUARD,XP(F)::B(I)
S(j);N_GUARD::B(I),XS(j)
P(f);OGATEB,SBLOCK::QAR(C),XP(g)
Tries
Try
S(H);
Threat
S(B)
Vars
S(d);N_SPINB(c)::R1(G)
Refutation
P(f);
Try
B(I);
Threat
B(I),XP(b)
Vars
P(f);OGATEB,SBLOCK::QAR(C),XP(g)
S(d);N_SPINB(c)::R1(G)
S(d);SBLOCK::S(H)
P(b);::B(I)
Refutation
Q(i);XP(F)
Try
Q(C);CHECK
Refutation
B(a);XQ(C)
Try
Q(C);
Threat
S(B)
Refutation
P(g);XQ(C)
Try
Q(C);CHECK
Vars
P(f);OGATEB,P_SPINP(f),SBLOCK::QAR(C)
Refutation
B(a);XQ(C)
Try
Q(C);CHECK
Vars
B(a);SBLOCK,XQ(C)::S(B)
S(d);SBLOCK,XQ(C)::S(B)
Refutation
K(e);N_SPINB(c),S_FLIGHT,XQ(C)
Actual
B(E);
Threat
S(B)
Vars
S(d);XP(F)::R1(G)
S(j);N_GUARD,XP(F)::B(I)
P(f);OGATEB,SBLOCK::QAR(C),XP(g)
S(d);::R1(G)
S(d);N_SPINB(c)::R1(G)
S(d);SBLOCK::S(B)
S(d);SBLOCK::S(H)
S(d);N_GUARD,S_CUTQ(i)::B(I)
S(j);N_GUARD::B(I),XS(j)
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).