MESON Chess Problem Database
Problem Display
PID: 199798 (8/1K1p4/1P1B4/RN1k1P2/5p2/5P2/2P1q3/5B1Q w - - 0 1)
Karstedt, Max AKS
Haagsche Courant, 1898
#2
10 + 4
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.c4#
- 1...Qxf3
- 2.Qxf3#
- 1...Qe1
- 2.c4#
- 1...Qd2
- 2.c4#
- 1...Qf2
- 2.c4#
- 1...Qg2
- 2.c4#
- 1...Qh2
- 2.c4#
- 1...Qe3
- 2.c4#
- 1...Qe4
- 2.fxe4#
- 1...Qe5
- 2.c4#
- 1...Qe6
- 2.c4#
- 1...Qe7
- 2.c4#
- 1...Qe8
- 2.c4#
- 1...Qd1
- Tries
- 1.Qg1?
- threat
- 2.Qd4#
- 2.Qc5#
- 1...Kc4
- 2.Qd4#
- 2.Qc5#
- 2.Qg8#
- 1...Qxf3
- 2.Qd4#
- 1...Qxc2
- 2.Qd4#
- 2.Qg8#
- 1...Qd1
- 2.Qc5#
- 2.Qg8#
- 2.c4#
- 1...Qd3
- 2.Qc5#
- 2.Qg8#
- 1...Qc4
- 2.Qg8#
- 1...Qd2
- 2.Qc5#
- 2.Qg8#
- 2.c4#
- 1...Qf2
- 2.Qg8#
- 2.c4#
- 1...Qe3
- 2.c4#
- 1...Qe4
- 2.Qc5#
- 1...Qe5
- 2.Qc5#
- 2.c4#
- 1...Qxb5!
- threat
- 1.Qh8?
- threat
- 2.Qd4#
- 1...Kc4
- 2.Sa3#
- 2.Qd4#
- 2.Qg8#
- 1...Qxb5
- 2.Qe5#
- 1...Qd1
- 2.Qe5#
- 2.Qg8#
- 2.c4#
- 1...Qd3
- 2.Qg8#
- 1...Qc4
- 2.Qe5#
- 2.Qg8#
- 1...Qd2
- 2.Qe5#
- 2.Qg8#
- 2.c4#
- 1...Qf2
- 2.Qe5#
- 2.Qg8#
- 2.c4#
- 1...Qe3
- 2.c4#
- 1...Qe5
- 2.Qxe5#
- 2.c4#
- 1...Qe4!
- threat
- 1.Qg1?
- Keys
- 1.Qg2!
- 1...Kc4
- 2.Qg8#
- 1...Qxf1
- 2.Qg8#
- 1...Qxf3
- 2.Qxf3#
- 1...Qxb5
- 2.Qd2#
- 1...Qxc2
- 2.Qg8#
- 1...Qxg2
- 2.c4#
- 1...Qd1
- 2.Qg8#
- 2.c4#
- 1...Qd3
- 2.Qg8#
- 1...Qc4
- 2.Qg8#
- 1...Qe1
- 2.c4#
- 1...Qd2
- 2.Qxd2#
- 2.Qg8#
- 2.c4#
- 1...Qf2
- 2.Qg8#
- 2.c4#
- 1...Qe3
- 2.c4#
- 1...Qe4
- 2.fxe4#
- 1...Qe5
- 2.c4#
- 1...Qe6
- 2.Qd2#
- 2.c4#
- 1...Qe7
- 2.Qd2#
- 2.c4#
- 1...Qe8
- 2.Qd2#
- 2.c4#
- 1...Kc4
- 1.Qg2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD::P(C)
- Q(a);OGATE,P_SPINQ(a),XP(D)::QAB(B),XQ(a)
- Q(a);OGATE::P(D),XQ(a)
- Tries
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(D)::QAR1(B)
- Q(a);N_GUARD::QAB(B)
- Q(a);N_GUARD::P(C)
- Q(a);::QAR1(B)
- Refutation
- Q(a);P_PINP(H),P_SPINQ(a),XS(F)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- Q(a);N_GUARD,P_PINP(H),P_SPINQ(a),XS(F)::QAR1(B)
- Q(a);N_GUARD::QAB(B)
- Q(a);N_GUARD::P(C)
- Refutation
- Q(a);
- Try
- Actual
- Q(B);
- Vars
- K(c);P_SPINQ(a),S_FLIGHT::QAB(B)
- Q(a);N_GUARD,XB(A)::QAB(B)
- Q(a);OGATE,P_SPINQ(a),XP(D)::QAB(B),XQ(a)
- Q(a);OGATE,P_PINP(H),P_SPINQ(a),XS(F)::QAR(B)
- Q(a);N_GUARD,XP(C)::QAB(B)
- Q(a);N_GUARD,XQ(B)::P(C)
- Q(a);N_GUARD::QAB(B)
- Q(a);N_GUARD::P(C)
- Q(a);OGATE::P(D),XQ(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).