MESON Chess Problem Database
Problem Display
PID: 81642 (8/3p4/4p3/3k4/2R2Q2/2K2n2/8/8 w - - 0 1)
Lincoln, Robert A
The Problemist Supplement, 2008
#2
3 + 4
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Qd4#
- 1...Sg1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sh2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sh4
- 2.Qd4#
- 1...Se5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...d6
- 2.Qe4#
- 1...Se1
- Tries
- 1.Kb2?
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Sg1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sh2
- 2.Qd4#
- 1...Sh4
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...d6
- 2.Qe4#
- 1...e5!
- 1...Sd4
- 1.Kb4?
- threat
- 2.Rc5#
- 1...Se5
- 2.Qd4#
- 1...d6
- 2.Qe4#
- 1...e5!
- threat
- 1.Qe3?
- threat
- 2.Qc5#
- 1...Kd6
- 2.Qc5#
- 1...d6
- 2.Qe4#
- 1...Sd4
- 2.Qxd4#
- 1...e5!
- threat
- 1.Kb2?
- Keys
- 1.Qc7!
- threat
- 2.Qc5#
- 1...Sd4
- 2.Rxd4#
- 1...e5
- 2.Qxd7#
- 1...d6
- 2.Qa5#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- P(d);SBLOCK::QAB1(C)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- P(d);SBLOCK::QAB1(C)
- Refutation
- P(c);
- Try
- K(A);S_FLIGHT
- Threat
- R1(B)
- Vars
- S(a);N_GUARD::QAR1(C)
- P(d);SBLOCK::QAB1(C)
- Refutation
- P(c);
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- K(b);P-FLIGHT::QAB1(C)
- P(d);SBLOCK::QAB1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- Refutation
- P(c);
- Try
- Actual
- Q(C);
- Threat
- QAR1(C)
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- P(c);SBLOCK::QAR2(C),XP(d)
- P(d);SBLOCK::QAR(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).