MESON Chess Problem Database
Problem Display
PID: 51645 (8/8/8/1Q6/K1p5/3N4/k1N5/q7 w - - 0 1)
Morse, Christopher Jeremy
The Problemist, 2003
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Qxb2#
- 1...Qc3
- 2.Sc1#
- 1...Qd4
- 2.Sc1#
- 1...Qe5
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg7
- 2.Sc1#
- 1...Qh8
- 2.Sc1#
- 1...Qc1
- 2.Sxc1#
- 1...Qd1
- 2.Qb2#
- 1...Qe1
- 2.Qb2#
- 1...Qf1
- 2.Qb2#
- 1...Qg1
- 2.Qb2#
- 1...Qh1
- 2.Qb2#
- 1...cxd3
- 2.Qb3#
- 1...c3
- 2.Qb3#
- 1...Qb2
- Tries
- 1.Qb6?
- 1...cxd3
- 2.Qb3#
- 1...Qb2
- 2.Qxb2#
- 1...Qc3
- 2.Sc1#
- 1...Qd4
- 2.Sc1#
- 1...Qe5
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg7
- 2.Sc1#
- 1...Qh8
- 2.Sc1#
- 1...Qc1
- 2.Sxc1#
- 1...Qd1
- 2.Qb2#
- 1...Qe1
- 2.Qb2#
- 1...Qf1
- 2.Qb2#
- 1...Qg1
- 2.Qb2#
- 1...Qh1
- 2.Qb2#
- 1...c3
- 2.Qb3#
- 1...Qb1!
- 1...cxd3
- 1.Qb7?
- 1...cxd3
- 2.Qb3#
- 1...Qb2
- 2.Qxb2#
- 1...Qc3
- 2.Sc1#
- 1...Qd4
- 2.Sc1#
- 1...Qe5
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg7
- 2.Sc1#
- 1...Qh8
- 2.Sc1#
- 1...Qc1
- 2.Sxc1#
- 1...Qd1
- 2.Qb2#
- 1...Qe1
- 2.Qb2#
- 1...Qf1
- 2.Qb2#
- 1...Qg1
- 2.Qb2#
- 1...Qh1
- 2.Qb2#
- 1...c3
- 2.Qb3#
- 1...Qb1!
- 1...cxd3
- 1.Qb8?
- 1...cxd3
- 2.Qb3#
- 1...Qb2
- 2.Qxb2#
- 1...Qc3
- 2.Sc1#
- 1...Qd4
- 2.Sc1#
- 1...Qe5
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg7
- 2.Sc1#
- 1...Qh8
- 2.Sc1#
- 1...Qc1
- 2.Sxc1#
- 1...Qd1
- 2.Qb2#
- 1...Qe1
- 2.Qb2#
- 1...Qf1
- 2.Qb2#
- 1...Qg1
- 2.Qb2#
- 1...Qh1
- 2.Qb2#
- 1...c3
- 2.Qb3#
- 1...Qb1!
- 1...cxd3
- 1.Qb6?
- Keys
- 1.Qb4!
- 1...cxd3
- 2.Qb3#
- 1...Qb2
- 2.Qxb2#
- 1...Qc3
- 2.Sc1#
- 1...Qd4
- 2.Sc1#
- 1...Qe5
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg7
- 2.Sc1#
- 1...Qh8
- 2.Sc1#
- 1...Qb1
- 2.Qa3#
- 1...Qc1
- 2.Sxc1#
- 1...Qd1
- 2.Qb2#
- 1...Qe1
- 2.Qb2#
- 1...Qf1
- 2.Qb2#
- 1...Qg1
- 2.Qb2#
- 1...Qh1
- 2.Qb2#
- 1...c3
- 2.Qb3#
- 1...cxd3
- 1.Qb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(a);N_GUARD::QAR1(D),XQ(a)
- Q(a);N_GUARD::S(B)
- Q(a);N_GUARD::S(B),XQ(a)
- Q(a);N_GUARD,P_PINS(A)::QAR1(D)
- Q(a);N_GUARD::QAR1(D)
- Q(a);N_GUARD,SBLOCK::QAR1(D)
- P(c);N_GUARD,XS(B)::QAB1(D)
- P(c);N_GUARD::QAB1(D)
- Tries
- Try
- Q(D);
- Vars
- P(c);N_GUARD,XS(B)::QAB1(D)
- Q(a);N_GUARD::QAR1(D),XQ(a)
- Q(a);N_GUARD::S(B)
- Q(a);N_GUARD::S(B),XQ(a)
- Q(a);N_GUARD,P_PINS(A)::QAR1(D)
- Q(a);N_GUARD::QAR1(D)
- Q(a);N_GUARD,SBLOCK::QAR1(D)
- P(c);N_GUARD::QAB1(D)
- Refutation
- Q(a);
- Try
- Q(D);
- Vars
- P(c);N_GUARD,XS(B)::QAB1(D)
- Q(a);N_GUARD::QAR1(D),XQ(a)
- Q(a);N_GUARD::S(B)
- Q(a);N_GUARD::S(B),XQ(a)
- Q(a);N_GUARD,P_PINS(A)::QAR1(D)
- Q(a);N_GUARD::QAR1(D)
- Q(a);N_GUARD,SBLOCK::QAR1(D)
- P(c);N_GUARD::QAB1(D)
- Refutation
- Q(a);
- Try
- Q(D);
- Vars
- P(c);N_GUARD,XS(B)::QAB1(D)
- Q(a);N_GUARD::QAR1(D),XQ(a)
- Q(a);N_GUARD::S(B)
- Q(a);N_GUARD::S(B),XQ(a)
- Q(a);N_GUARD,P_PINS(A)::QAR1(D)
- Q(a);N_GUARD::QAR1(D)
- Q(a);N_GUARD,SBLOCK::QAR1(D)
- P(c);N_GUARD::QAB1(D)
- Refutation
- Q(a);
- Try
- Actual
- Q(D);
- Vars
- P(c);N_GUARD,XS(B)::QAB1(D)
- Q(a);N_GUARD::QAR1(D),XQ(a)
- Q(a);N_GUARD::S(B)
- Q(a);SBLOCK::QAR1(D)
- Q(a);N_GUARD::S(B),XQ(a)
- Q(a);N_GUARD,P_PINS(A)::QAR1(D)
- Q(a);N_GUARD::QAR1(D)
- Q(a);N_GUARD,SBLOCK::QAR1(D)
- P(c);N_GUARD::QAB1(D)
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).