MESON Chess Problem Database
Problem Display
PID: 15904 (8/p2q4/k1N4Q/8/K7/1R6/8/8 w - - 0 1)
Burbach, Johannes Jacob
Deutsche Schachzeitung, 1989
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Qh3
- 2.Sb8#
- 1...Qf5
- 2.Sb8#
- 1...Qxc6+
- 2.Qxc6#
- 1...Qe6
- 2.Sb8#
- 1...Qc8
- 2.Sb8#
- 1...Qd1
- 2.Sd4#
- 2.Sb8#
- 1...Qd2
- 2.Sb8#
- 1...Qd3
- 2.Sb8#
- 1...Qd4+
- 2.Sxd4#
- 1...Qd5
- 2.Sb8#
- 1...Qd6
- 2.Sb8#
- 1...Qb7
- 2.Sb4#
- 2.Sb8#
- 1...Qc7
- 2.Sb8#
- 1...Qe7
- 2.Sxe7#
- 2.Sb8#
- 1...Qf7
- 2.Sb8#
- 1...Qg7
- 2.Sb8#
- 1...Qh7
- 2.Sb8#
- 1...Qd8
- 2.Sb8#
- 2.Sxd8#
- 1...Qh3
- Tries
- 1.Rb5?
- threat
- 2.Sb4#
- 2.Sb8#
- 1...Qg4+
- 2.Sb4#
- 1...Qd4+
- 2.Sb4#
- 2.Sxd4#
- 1...Qxc6
- 2.Qxc6#
- 1...Qd1+!
- threat
- 1.Qd6?
- 1...Qg4+
- 2.Sd4#
- 1...Qxc6+
- 2.Qxc6#
- 1...Qe8
- 2.Qd3#
- 1...Qh3
- 2.Sd4#
- 2.Sa5#
- 2.Se5#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Qf5
- 2.Sd4#
- 2.Sa5#
- 2.Se5#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Qe6
- 2.Sb8#
- 1...Qc8
- 2.Sb8#
- 2.Qd3#
- 1...Qb7
- 2.Sb4#
- 2.Sb8#
- 1...Qc7
- 2.Sb8#
- 2.Qd3#
- 1...Qe7
- 2.Sxe7#
- 2.Sb8#
- 2.Qd3#
- 1...Qf7
- 2.Sd4#
- 2.Sa5#
- 2.Se5#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Qg7
- 2.Sd4#
- 2.Sa5#
- 2.Se5#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 2.Qd3#
- 1...Qh7
- 2.Sd4#
- 2.Sa5#
- 2.Se5#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Qd8
- 2.Sb8#
- 2.Sxd8#
- 1...Qxd6!
- 1...Qg4+
- 1.Qg6?
- 1...Qxc6+
- 2.Qxc6#
- 1...Qd4+
- 2.Sxd4#
- 1...Qe8
- 2.Qd3#
- 1...Qh3
- 2.Sb8#
- 1...Qf5
- 2.Sb8#
- 1...Qe6
- 2.Sb8#
- 1...Qc8
- 2.Sb8#
- 2.Qd3#
- 1...Qd1
- 2.Sd4#
- 2.Sb8#
- 1...Qd2
- 2.Sd4#
- 2.Sb8#
- 1...Qd3
- 2.Sb8#
- 2.Qxd3#
- 1...Qd5
- 2.Sb8#
- 1...Qd6
- 2.Sb8#
- 1...Qb7
- 2.Sb4#
- 2.Sb8#
- 1...Qc7
- 2.Sb8#
- 2.Qd3#
- 1...Qe7
- 2.Sxe7#
- 2.Sb8#
- 2.Qd3#
- 1...Qf7
- 2.Sb8#
- 1...Qg7
- 2.Sb8#
- 2.Qd3#
- 1...Qh7
- 2.Sb8#
- 1...Qd8
- 2.Sb8#
- 2.Sxd8#
- 1...Qg4+!
- 1...Qxc6+
- 1.Rb5?
- Keys
- 1.Qe6!
- threat
- 2.Qc4#
- 1...Qxc6+
- 2.Qxc6#
- 1...Qd4+
- 2.Sxd4#
- 1...Qxe6
- 2.Sb8#
- 1...Qd3
- 2.Sd4#
- 2.Sb8#
- 2.Qc8#
- 1...Qd5
- 2.Sb8#
- 2.Qc8#
- 1...Qb7
- 2.Sb4#
- 2.Sb8#
- 1...Qf7
- 2.Sb8#
- threat
- 1.Qe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- Q(c);N_PINS(C)::QAR(D)+S(C),DCHECK
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR2(D),XQ(c)
- Q(c);N_PINS(C)::S(C)
- Q(c);CHECK,N_PINS(C)::QAR(D)+S(C),XQ(c)
- Tries
- Try
- R(A);N_SPINS(C)
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK::QAR(D)+S(C),DCHECK
- Q(c);OGATE,P_PINR(A),P_SPINQ(c),XS(C)::QAR2(D),XQ(c)
- Refutation
- Q(c);CHECK
- Try
- Q(D);
- Vars
- Q(c);CHECK,N_PINS(C)::QAR(D)+S(C)
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR2(D),XQ(c)
- Q(c);N_GUARD::QAB(D)
- Q(c);N_PINS(C)::QAR(D)+S(C),DCHECK
- Refutation
- Q(c);N_PINS(C),XQ(D)
- Try
- Q(D);
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR2(D),XQ(c)
- Q(c);CHECK,N_PINS(C)::QAR(D)+S(C),XQ(c)
- Q(c);N_GUARD::QAB(D)
- Q(c);N_PINS(C)::QAR(D)+S(C),DCHECK
- Q(c);N_PINS(C)::S(C)
- Refutation
- Q(c);CHECK,N_PINS(C)
- Try
- Actual
- Q(D);
- Threat
- QAB(D)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR2(D),XQ(c)
- Q(c);CHECK,N_PINS(C)::QAR(D)+S(C),XQ(c)
- Q(c);N_PINS(C),XQ(D)::S(C)
- Q(c);N_PINS(C)::QAR(D)+S(C),DCHECK
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).