MESON Chess Problem Database
Problem Display
PID: 16665 (8/8/4B1Q1/4R3/5p1r/5k2/2Kn1p1P/4b3 w - - 0 1)
Gunn, Robert Ivan
Chess, 1942
#2
5 + 6
SOLUTION
- SOUND
- Sets
- 1...Rxh2
- 2.Qg4#
- 1...Rh3
- 2.Qg4#
- 1...Rg4
- 2.Qxg4#
- 1...Rh5
- 2.Qg4#
- 1...Rh6
- 2.Qg4#
- 1...Rh7
- 2.Qg4#
- 1...Rh8
- 2.Qg4#
- 1...Sb1
- 2.Bd5#
- 2.Qe4#
- 1...Sf1
- 2.Bd5#
- 2.Qe4#
- 1...Sb3
- 2.Bd5#
- 2.Qe4#
- 1...Sc4
- 2.Bd5#
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Rxh2
- Tries
- 1.Re3+?
- 1...Kxe3
- 2.Qd3#
- 1...fxe3!
- 1...Kxe3
- 1.Re3+?
- Keys
- 1.Re2!
- 1...Kxe2
- 2.Qd3#
- 1...Rxh2
- 2.Qg4#
- 1...Rg4
- 2.Qxg4#
- 1...f1Q
- 2.Qd3#
- 1...f1S
- 2.Qg2#
- 1...f1B
- 2.Qd3#
- 1...f1R
- 2.Qd3#
- 2.Qg2#
- 1...Rh3
- 2.Qg4#
- 1...Rh5
- 2.Qg4#
- 1...Rh6
- 2.Qg4#
- 1...Rh7
- 2.Qg4#
- 1...Rh8
- 2.Qg4#
- 1...Sb1
- 2.Qe4#
- 1...Sf1
- 2.Qe4#
- 1...Sb3
- 2.Qe4#
- 1...Sc4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Kxe2
- 1.Re2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD,XP(B)::QAB1(E)
- R(f);N_GUARD::QAB1(E)
- R(f);N_GUARD::QAB1(E),XR(f)
- S(b);N_GUARD::QAB1(E),XS(b)
- Tries
- Try
- R(C);CHECK
- Vars
- K(d);P-FLIGHT,XR(C)::QAR1(E)
- Refutation
- P(e);XR(C)
- Try
- Actual
- R(C);
- Vars
- K(d);S_FLIGHT,XR(C)::QAB1(E)
- R(f);N_GUARD,XP(B)::QAB1(E)
- R(f);N_GUARD::QAB1(E),XR(f)
- P(c);::QAR2(E)
- P(c);::QAB1(E)
- R(f);N_GUARD::QAB1(E)
- S(b);N_GUARD::QAB1(E)
- S(b);N_GUARD::QAB1(E),XS(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).