MESON Chess Problem Database
Problem Display
PID: 27221 (8/4K3/8/8/nRB1p3/3R4/1p1Q4/k1N5 w - - 0 1)
Lebeck, Donald
Mate in Two!! (Lebeck), 1992
#2
6 + 4
SOLUTION
- SOUND
- Sets
- 1...Sc3
- 2.Qxb2#
- 1...Sc5
- 2.Qxb2#
- 1...Sb6
- 2.Qxb2#
- 1...bxc1Q
- 2.Qxc1#
- 2.Qa2#
- 1...bxc1S
- 2.Qxc1#
- 1...bxc1B
- 2.Qxc1#
- 2.Qa2#
- 1...bxc1R
- 2.Ra3#
- 2.Qxc1#
- 2.Qa2#
- 1...b1S
- 2.Sb3#
- 2.Qa2#
- 1...b1B
- 2.Sb3#
- 1...b1R
- 2.Ra3#
- 2.Rxa4#
- 2.Qa2#
- 1...Sc3
- Tries
- 1.Rxb2?
- threat
- 2.Sb3#
- 2.Ra3#
- 1...exd3
- 2.Sb3#
- 1...Sc3
- 2.Sb3#
- 1...Sc5
- 2.Ra3#
- 1...Sxb2!
- threat
- 1.Rxb2?
- Keys
- 1.Qc2!
- threat
- 2.Ra3#
- 2.Rxa4#
- 1...bxc1Q
- 2.Qxc1#
- 2.Qa2#
- 1...bxc1S
- 2.Rb1#
- 2.Qb1#
- 2.Qxc1#
- 1...bxc1B
- 2.Rb1#
- 2.Qb1#
- 2.Qxc1#
- 2.Qa2#
- 1...exd3
- 2.Rxa4#
- 1...b1Q
- 2.Rxb1#
- 2.Qxb1#
- 1...b1S
- 2.Sb3#
- 2.Rxb1#
- 2.Qxb1#
- 2.Qa2#
- 1...b1B
- 2.Sb3#
- 2.Rxb1#
- 2.Qxb1#
- 1...Sc3
- 2.Qxb2#
- 1...Sc5
- 2.Ra3#
- 2.Qxb2#
- 1...Sb6
- 2.Ra3#
- 2.Qxb2#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- S(c);N_GUARD::QAB1(B),XP(b)
- P(b);OGATE,XS(A)::QAR2(B),XS(b)
- P(b);SBLOCK::S(A)
- Tries
- Try
- R(D);XP(b)
- Threat
- DUALS(2)
- Vars
- P(d);XR(C)::S(A)
- S(c);::S(A)
- S(c);::R(C)
- Refutation
- S(c);XR(D)
- Try
- Actual
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(d);XR(C)::R(D),XS(c)
- S(c);N_GUARD::QAB1(B),XP(b)
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).