MESON Chess Problem Database
Problem Display
PID: 27874 (8/8/q4b1R/3P1k1K/6R1/5PP1/6Q1/8 w - - 0 1)
Lebeck, Donald
Mate in Two!! (Lebeck), 1992
#2
7 + 3
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Rg5#
- 1...Bb2
- 2.Rg5#
- 1...Bc3
- 2.Rg5#
- 1...Bd4
- 2.Rg5#
- 1...Be5
- 2.Rg5#
- 1...Bg5
- 2.Rxg5#
- 1...Bg7
- 2.Rg5#
- 1...Bh8
- 2.Rg5#
- 1...Ba1
- Tries
- 1.Qh3?
- threat
- 2.Re4#
- 2.Rg5#
- 1...Qf1
- 2.Rg5#
- 1...Bg5
- 2.Re4#
- 2.Rxg5#
- 1...Ke5!
- threat
- 1.Qb2?
- threat
- 2.Rf4#
- 1...Bxb2
- 2.Rg5#
- 1...Bc3
- 2.Rg5#
- 1...Bd4
- 2.Rg5#
- 1...Qc4
- 2.Rxf6#
- 2.Qxf6#
- 1...Qa4
- 2.Rxf6#
- 2.Qxf6#
- 1...Be5
- 2.Rg5#
- 1...Bg5
- 2.Rxg5#
- 1...Qd6!
- threat
- 1.Qe2?
- threat
- 2.Rf4#
- 2.Qe4#
- 1...Qd3
- 2.Rf4#
- 2.Qe6#
- 1...Qc4
- 2.Qe6#
- 1...Qa4
- 2.Qe6#
- 1...Qd6
- 2.Qe4#
- 1...Qe6
- 2.Rf4#
- 2.Qxe6#
- 1...Be5
- 2.Rg5#
- 2.Qe4#
- 1...Bg5
- 2.Rxg5#
- 2.Qe4#
- 1...Qxe2!
- threat
- 1.Qh3?
- Keys
- 1.Re4!
- threat
- 2.Qh3#
- 2.g4#
- 1...Qf1
- 2.g4#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- B(c);N_GUARD::R1(D)
- B(c);N_GUARD,SBLOCK::R1(D)
- B(c);N_GUARD::R1(D),XB(c)
- Tries
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(b);::QAB(A)+R(D),DCHECK
- Refutation
- K(a);P-FLIGHT
- Try
- Q(A);
- Threat
- R1(D)
- Vars
- B(c);N_GUARD,XQ(A)::R1(D)
- B(c);N_GUARD::R1(D)
- B(c);N_GUARD::R1(D),XB(c)
- Refutation
- Q(b);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD::QAB1(A)
- Q(b);::QAB1(A)
- Refutation
- Q(b);XQ(A)
- Try
- Actual
- R(D);
- Threat
- DUALS(2)
- Vars
- Q(b);::P(C)
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).