MESON Chess Problem Database
Problem Display
PID: 958 (8/3qr3/3rQ3/5pP1/5R1N/3p3k/5P2/6K1 w - - 0 1)
Lincoln, Robert A
The Problemist Supplement, 1994
#2
6 + 6
SOLUTION
- SOUND
- Sets
- 1...Qa4
- 2.Qxf5#
- 1...Qc6
- 2.Qxf5#
- 1...Qe8
- 2.Qxf5#
- 1...Qa7
- 2.Qxf5#
- 1...Qb7
- 2.Qxf5#
- 1...Qc7
- 2.Qxf5#
- 1...Qd8
- 2.Qxf5#
- 1...Rf7
- 2.Qe3#
- 1...Rg7
- 2.Qe3#
- 1...Rh7
- 2.Qe3#
- 1...Qa4
- Tries
- 1.Sf3?
- threat
- 2.Rh4#
- 1...Qa4
- 2.Qxf5#
- 1...Rd4
- 2.Qh6#
- 1...Rh7!
- threat
- 1.Sxf5?
- threat
- 2.Rh4#
- 1...Rd4
- 2.Qh6#
- 1...Rh7
- 2.Qe3#
- 1...Qa4!
- threat
- 1.Sg6?
- threat
- 2.Rh4#
- 1...Qa4
- 2.Qxf5#
- 1...Rh7
- 2.Qe3#
- 1...Rd4!
- threat
- 1.Sf3?
- Keys
- 1.Sg2!
- threat
- 2.Rh4#
- 1...Qa4
- 2.Qxf5#
- 1...Rd4
- 2.Qh6#
- 1...Rh7
- 2.Qe3#
- threat
- 1.Sg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(e);N_GUARD::QAB(F),XP(c)
- Q(e);N_GUARD,P_PINP(B)::QAB(F),XP(c)
- R(f);N_GUARD::QAR(F)
- R(f);N_GUARD,P_PINP(E)::QAR(F)
- Tries
- Try
- S(D);
- Threat
- R1(C)
- Vars
- Q(e);N_GUARD::QAB(F),XP(c)
- R(d);N_GUARD::QAR(F)
- Refutation
- R(f);
- Try
- S(D);XP(c)
- Threat
- R1(C)
- Vars
- R(d);N_GUARD::QAR(F)
- R(f);N_GUARD::QAR(F)
- Refutation
- Q(e);
- Try
- S(D);
- Threat
- R1(C)
- Vars
- Q(e);N_GUARD::QAB(F),XP(c)
- R(f);N_GUARD::QAR(F)
- Refutation
- R(d);
- Try
- Actual
- S(D);
- Threat
- R1(C)
- Vars
- Q(e);N_GUARD::QAB(F),XP(c)
- R(d);N_GUARD::QAR(F)
- R(f);N_GUARD::QAR(F)
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).