PID: 276068 (2BR4/8/2p5/NbBNk2r/4p3/2P5/K1p4p/2br3Q w - - 0 1)
Jalcenko, E
Mat, 1981
#2
8 + 9
SOLUTION
SOUND
Sets
1...Re1
2.Bd4#
1...Rf1
2.Bd4#
1...Rg1
2.Bd4#
1...Rxh1
2.Bd4#
1...Rd4
2.Bxd4#
2.cxd4#
1...Bd2
2.Bd4#
1...Bf1
2.Sxc6#
1...Be2
2.Sxc6#
1...Bd3
2.Sxc6#
2.Bd4#
1...Ba4
2.Sc4#
1...Bc4+
2.Sxc4#
1...Ba6
2.Sxc6#
1...e3
2.Bd6#
2.Re8#
Tries
1.Qf3?
threat
2.Qf6#
1...Bc4+
2.Sxc4#
1...Rxd5
2.Re8#
1...cxd5
2.Bd6#
1...Rf1
2.Bd4#
1...Rf5
2.Qxf5#
1...Rh6
2.Qf5#
1...Bf4
2.Qxf4#
1...Bg5
2.Qf5#
1...e3
2.Bd6#
2.Re8#
2.Qf4#
1...exf3!
1.Qxh2+?
1...Bf4
2.Qxf4#
1...Rxh2!
Keys
1.Qf1!
threat
2.Qf6#
1...Bc4+
2.Sxc4#
1...Rxf1
2.Bd4#
1...Rxd5
2.Re8#
1...Bxf1
2.Sxc6#
1...cxd5
2.Bd6#
1...e3
2.Qf4#
1...Rf5
2.Qxf5#
1...Rh6
2.Qf5#
1...Bf4
2.Qxf4#
1...Bg5
2.Qf5#
FEATURES
Static
TYPE = THREAT
CHANGED MATES = 0
ADDED MATES = 7
REMOVED MATES = 7
Sets
R(b);N_GUARD::B(E)
R(b);N_GUARD,XQ(A)::B(E)
B(a);S_CUTR(b)::B(E)
B(f);N_GUARD::S(D),XP(i)
B(f);N_GUARD::S(D)
B(f);CHECK,N_GUARD::S(D),XB(f)
Tries
Try
Q(A);
Threat
QAB1(A)
Vars
B(f);CHECK,N_GUARD::S(D),XB(f)
R(b);SBLOCK,XS(F)::R(H)
P(i);SBLOCK,XS(F)::B(E)
R(b);N_GUARD::B(E)
R(h);N_GUARD::QAR1(A),XR(h)
R(h);N_GUARD::QAR1(A)
B(a);N_GUARD::QAB1(A),XB(a)
B(a);S_CUTR(h)::QAR1(A)
Refutation
P(e);XQ(A)
Try
Q(A);CHECK,XP(d)
Vars
B(a);N_GUARD,P_SPINB(a)::QAB1(A),XB(a)
Refutation
R(h);XQ(A)
Actual
Q(A);
Threat
QAB1(A)
Vars
B(f);CHECK,N_GUARD::S(D),XB(f)
R(b);N_GUARD,XQ(A)::B(E)
R(b);SBLOCK,XS(F)::R(H)
B(f);N_GUARD,XQ(A)::S(D),XP(i)
P(i);SBLOCK,XS(F)::B(E)
P(e);S_CUTB(a)::QAB1(A)
R(h);N_GUARD::QAR1(A),XR(h)
R(h);N_GUARD::QAR1(A)
B(a);N_GUARD::QAB1(A),XB(a)
B(a);S_CUTR(h)::QAR1(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).