MESON Chess Problem Database
Problem Display
PID: 144372 (8/n2K2p1/1P6/2pkp1B1/Q1NqN3/8/4P3/1B6 w - - 0 1)
Lemon, Courtenay
British Chess Magazine, 1898
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Se3#
- 1...Qb2
- 2.Se3#
- 1...Qe3
- 2.Sxe3#
- 1...Qd1
- 2.Se3#
- 1...g6
- 2.Sf6#
- 1...Qa1
- Tries
- 1.bxa7?
- threat
- 2.Sb6#
- 2.a8Q#
- 2.a8B#
- 1...Qxe4
- 2.Sb6#
- 1...Qa1
- 2.Se3#
- 2.Sb6#
- 1...Qg1
- 2.Sb6#
- 1...Qb2
- 2.Se3#
- 1...Qf2
- 2.Sb6#
- 1...Qc3
- 2.Sb6#
- 1...Qe3
- 2.Sxe3#
- 2.Sb6#
- 1...Qd1
- 2.Se3#
- 2.Sb6#
- 1...Qd2
- 2.Sb6#
- 1...Qd3
- 2.Sb6#
- 1...g6
- 2.Sb6#
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Qxc4!
- threat
- 1.bxa7?
- Keys
- 1.Ba2!
- 1...Kxe4+
- 2.Sd6#
- 1...Qxc4
- 2.Qxc4#
- 1...Qxe4
- 2.Se3#
- 1...Qa1
- 2.Se3#
- 1...Qg1
- 2.Se3#
- 1...Qb2
- 2.Se3#
- 1...Qf2
- 2.Se3#
- 1...Qc3
- 2.Se3#
- 1...Qe3
- 2.Sxe3#
- 1...Qd1
- 2.Se3#
- 1...Qd2
- 2.Se3#
- 1...Qd3
- 2.Se3#
- 1...Sb5
- 2.Qa8#
- 1...Sc6
- 2.Qxc6#
- 1...Sc8
- 2.Qc6#
- 2.Qa8#
- 1...g6
- 2.Sf6#
- 1...Kxe4+
- 1.Ba2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- Q(a);N_GUARD::S(D)
- Q(a);N_GUARD::S(D),XQ(a)
- P(f);N_GUARD::S(E)
- Tries
- Try
- P(G);XS(e)
- Threat
- DUALS(3)
- Vars
- Q(a);XS(E)::S(D)
- Q(a);::S(D)
- Q(a);N_GUARD::S(D)
- Refutation
- Q(a);XS(D)
- Try
- Actual
- B(A);
- Vars
- K(c);CHECK,S_FLIGHT,XS(E)::S(D)
- Q(a);OGATE,P_SPINQ(a),XS(D)::QAB1(C),XQ(a)
- Q(a);XS(E)::B(A)+S(D),DCHECK
- Q(a);::B(A)+S(D),DCHECK
- Q(a);::B(A)+S(D),DCHECK,XQ(a)
- S(e);OGATE::QAB(C)
- S(e);N_GUARD::QAB1(C),XS(e)
- P(f);N_GUARD::S(E)
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).