MESON Chess Problem Database
Problem Display
PID: 157957 (8/1p1N4/1P1pKR2/1QP5/3rk3/1p5r/4P3/3N1bB1 w - - 0 1)
Lukashev, Viktor Sergeevich
Best Problems, 2009
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Sc3#
- 1...Rh2
- 2.Sc3#
- 1...Rc3
- 2.Sxc3#
- 1...Re3
- 2.Sf2#
- 1...Rf3
- 2.exf3#
- 1...Rh4
- 2.Sc3#
- 1...Rh5
- 2.Sc3#
- 1...Rh6
- 2.Sc3#
- 1...Rh7
- 2.Sc3#
- 1...Rh8
- 2.Sc3#
- 1...Ra4
- 2.Qxa4#
- 1...Rb4
- 2.Qxb4#
- 1...Rc4
- 2.Qxc4#
- 1...dxc5
- 2.Sxc5#
- 1...Rh1
- Tries
- 1.cxd6?
- threat
- 2.Sc5#
- 2.Qe5#
- 2.Qf5#
- 1...Bxe2
- 2.Sc5#
- 2.Qf5#
- 1...Rc3
- 2.Sxc3#
- 2.Qe5#
- 2.Qf5#
- 1...Rf3
- 2.Sc5#
- 2.Qe5#
- 2.exf3#
- 1...Rh5
- 2.Sc3#
- 1...Rc4
- 2.Qxc4#
- 2.Qd5#
- 2.Qe5#
- 2.Qf5#
- 1...Rd5
- 2.Qxd5#
- 1...Rxd6+!
- threat
- 1.cxd6?
- Keys
- 1.c6!
- threat
- 2.Qf5#
- 1...Rf3
- 2.exf3#
- 1...Rh5
- 2.Sc3#
- 1...Rd5
- 2.Qxd5#
- 1...d5
- 2.Sc5#
- threat
- 1.c6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- R(c);N_GUARD::S(A)
- R(c);N_GUARD::S(A),XR(c)
- R(c);SBLOCK::S(A)
- R(c);OGATE::P(C),XR(c)
- R(c);N_GUARD,P_PINR(H)::S(A)
- R(d);OGATEB::QAR(D),XR(d)
- R(d);OGATEB::QAR2(D),XR(d)
- P(f);XP(E)::S(I),XP(f)
- Tries
- Try
- P(E);XP(f)
- Threat
- DUALS(3)
- Vars
- R(c);N_GUARD::S(A)
- R(d);N_GUARD::QAB1(D),XR(d)
- Refutation
- R(d);CHECK,XP(E)
- Try
- Actual
- P(E);
- Threat
- QAB1(D)
- Vars
- R(c);OGATE::P(C),XR(c)
- R(c);N_GUARD::S(A)
- R(d);N_GUARD::QAB1(D),XR(d)
- P(f);N_GUARD::S(I)
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).