MESON Chess Problem Database
Problem Display
PID: 209316 (5R2/8/2P1k3/2Q5/5Kn1/8/8/8 w - - 0 1)
Lewis, Robert Tony
The Problemist, 1984
#2
4 + 2
SOLUTION
- SOUND
- Sets
- 1...Sf2
- 2.Qe5#
- 1...Sh2
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sf6
- 2.Qe5#
- 1...Sh6
- 2.Qe5#
- 1...Sf2
- Tries
- 1.Rf5?
- 1...Sf2
- 2.Qe5#
- 1...Sh2
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sh6
- 2.Qe5#
- 1...Sf6!
- 1...Sf2
- 1.Qd4?
- threat
- 2.Qd7#
- 1...Se5
- 2.Qxe5#
- 1...Sf6
- 2.Qe5#
- 1...Ke7!
- threat
- 1.Qg5?
- 1...Se5
- 2.Qxe5#
- 1...Sf6
- 2.Qe5#
- 1...Sf2
- 2.Qe5#
- 1...Sh2
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Sh6
- 2.Qe5#
- 1...Kd6!
- 1...Se5
- 1.Rf5?
- Keys
- 1.Kg5!
- 1...Sf2
- 2.Rf6#
- 1...Sh2
- 2.Rf6#
- 1...Se3
- 2.Rf6#
- 1...Se5
- 2.Rf6#
- 1...Sf6
- 2.Rxf6#
- 1...Sh6
- 2.Rf6#
- 1...Sf2
- 1.Kg5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- Tries
- Try
- R(D);
- Vars
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- Refutation
- S(a);
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(B);
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- S(a);N_GUARD::QAR1(B)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- K(A);S_FLIGHT
- Vars
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
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).