MESON Chess Problem Database
Problem Display
PID: 214906 (2B5/4r3/8/2bb2Q1/N2kp3/8/1N1P4/6K1 w - - 0 1)
Deming, Mary J
St. Louis Globe Democrat, 1879
#2
6 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Qe3#
- 1...Ra7
- 2.Qf6#
- 1...Rb7
- 2.Qf6#
- 1...Rc7
- 2.Qf6#
- 1...Rd7
- 2.Qf6#
- 1...Rg7
- 2.Qxg7#
- 1...Rh7
- 2.Qf6#
- 1...Ba2
- 2.Qxc5#
- 1...Bb3
- 2.Qxc5#
- 1...Bc4
- 2.Qxc5#
- 1...Bc6
- 2.Qxc5#
- 1...Be6
- 2.Qxc5#
- 1...Bb7
- 2.Qxc5#
- 1...Bf7
- 2.Qxc5#
- 1...Ba8
- 2.Qxc5#
- 1...Bg8
- 2.Qxc5#
- 1...Re5
- Tries
- 1.Sc3?
- threat
- 2.Se2#
- 2.Sb5#
- 2.Qxd5#
- 1...Ba3
- 2.Qxd5#
- 1...Bb4
- 2.Qxd5#
- 1...Bb6
- 2.Qxd5#
- 1...Bd6
- 2.Qxd5#
- 1...Ba7
- 2.Qxd5#
- 1...Re5
- 2.Se2#
- 2.Sb5#
- 2.Qe3#
- 1...Rb7
- 2.Se2#
- 2.Qf6#
- 2.Qxd5#
- 1...Rd7
- 2.Se2#
- 2.Sb5#
- 2.Qf6#
- 1...Rg7
- 2.Se2#
- 2.Sb5#
- 2.Qxg7#
- 1...Ba2
- 2.Se2#
- 2.Sb5#
- 1...Bb3
- 2.Se2#
- 2.Sb5#
- 1...Bc6
- 2.Se2#
- 1...Be6
- 2.Se2#
- 2.Sb5#
- 2.Qf6#
- 1...Bb7
- 2.Se2#
- 2.Sb5#
- 1...Bf7
- 2.Se2#
- 2.Sb5#
- 1...Ba8
- 2.Se2#
- 2.Sb5#
- 1...Bg8
- 2.Se2#
- 2.Sb5#
- 1...e3
- 2.Qxd5#
- 1...Bc4!
- threat
- 1.Be6?
- threat
- 2.Qf6#
- 2.Qxd5#
- 1...Bxe6
- 2.Qxc5#
- 1...e3
- 2.Qxe3#
- 2.Qxd5#
- 1...Rd7
- 2.Qf6#
- 1...Rf7
- 2.Qxd5#
- 1...Rg7
- 2.Qxg7#
- 1...Bd6
- 2.Qxd5#
- 1...Ba2
- 2.Qf6#
- 2.Qxc5#
- 1...Bb3
- 2.Qf6#
- 2.Qxc5#
- 1...Bc4
- 2.Qf6#
- 2.Qxc5#
- 1...Bc6
- 2.Qf6#
- 2.Qxc5#
- 1...Bb7
- 2.Qf6#
- 2.Qxc5#
- 1...Ba8
- 2.Qf6#
- 2.Qxc5#
- 1...Rxe6!
- threat
- 1.Sc3?
- Keys
- 1.Bb7!
- threat
- 2.Qxd5#
- 1...Rxb7
- 2.Qf6#
- 1...Bxb7
- 2.Qxc5#
- 1...Re5
- 2.Qe3#
- 1...Rd7
- 2.Qf6#
- 1...Rg7
- 2.Qxg7#
- 1...Ba2
- 2.Qxc5#
- 1...Bb3
- 2.Qxc5#
- 1...Bc4
- 2.Qxc5#
- 1...Bc6
- 2.Qxc5#
- 1...Be6
- 2.Qf6#
- 2.Qxc5#
- 1...Bf7
- 2.Qxc5#
- 1...Bg8
- 2.Qxc5#
- threat
- 1.Bb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- R(e);SBLOCK::QAB1(E)
- R(e);N_GUARD::QAB(E)
- R(e);N_GUARD,P_PINQ(E)::QAB(E),XR(e)
- B(d);OGATE::QAB1(E),XB(c)
- Tries
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- B(c);::QAR1(E),XB(d)
- B(d);::S(D)
- P(b);::QAR1(E),XB(d)
- Refutation
- B(d);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- B(d);OGATE,XB(F)::QAB1(E),XB(c)
- R(e);::QAB(E)
- R(e);::QAR1(E),XB(d)
- R(e);N_GUARD,P_PINQ(E)::QAB(E),XR(e)
- B(c);::QAR1(E),XB(d)
- Refutation
- R(e);XB(F)
- Try
- Actual
- B(F);
- Threat
- QAR1(E),XB(d)
- Vars
- R(e);N_GUARD,XB(F)::QAB(E)
- B(d);OGATE,XB(F)::QAB1(E),XB(c)
- R(e);SBLOCK::QAB1(E)
- R(e);N_GUARD::QAB(E)
- R(e);N_GUARD,P_PINQ(E)::QAB(E),XR(e)
- B(d);OGATE::QAB1(E),XB(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).