MESON Chess Problem Database
Problem Display
PID: 101123 (6bb/6n1/8/1Np2p2/Kpk1B3/3NR3/1Q5q/2n4r w - - 0 1)
Moller, Herbert
Good Companions, 1919
#2
6 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Se5#
- 2.Sd6#
- 2.Qc2#
- 1...Qg3
- 2.Qc2#
- 1...Qf4
- 2.Qc2#
- 1...Qe5
- 2.Sxe5#
- 1...Qd6
- 2.Sxd6#
- 2.Qc2#
- 1...Qc7
- 2.Qc2#
- 1...Qb8
- 2.Qc2#
- 1...Qxb2
- 2.Sxb2#
- 1...Qc2+
- 2.Qxc2#
- 1...Qd2
- 2.Se5#
- 2.Sd6#
- 1...Qe2
- 2.Se5#
- 2.Sd6#
- 1...Qf2
- 2.Se5#
- 2.Sd6#
- 1...Qg2
- 2.Se5#
- 2.Sd6#
- 1...Qh3
- 2.Se5#
- 2.Sd6#
- 2.Qc2#
- 1...Qh4
- 2.Se5#
- 2.Sd6#
- 2.Qc2#
- 1...Qh5
- 2.Se5#
- 2.Sd6#
- 2.Qc2#
- 1...Qh6
- 2.Se5#
- 2.Qc2#
- 1...Qh7
- 2.Se5#
- 2.Sd6#
- 2.Qc2#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sxd3
- 2.Qb3#
- 1...b3
- 2.Sa3#
- 2.Qc3#
- 1...f4
- 2.Se5#
- 2.Sd6#
- 1...Qg1
- Tries
- 1.Sxc1?
- threat
- 2.Qb3#
- 1...Qc2+
- 2.Qxc2#
- 1...b3
- 2.Sa3#
- 2.Rc3#
- 2.Qc3#
- 2.Qxb3#
- 1...Qxb2!
- threat
- 1.Sxb4?
- threat
- 2.Sa3#
- 2.Rc3#
- 2.Qc3#
- 1...Qc2+
- 2.Qxc2#
- 1...cxb4
- 2.Qd4#
- 2.Qxb4#
- 1...Qg3
- 2.Sa3#
- 2.Qc3#
- 2.Qc2#
- 1...Qe5
- 2.Sa3#
- 1...Qd2
- 2.Sa3#
- 1...Qh3
- 2.Sa3#
- 2.Sd6#
- 2.Qc3#
- 2.Qc2#
- 1...Sa2
- 2.Sa3#
- 2.Bd3#
- 2.Qb3#
- 1...Se2
- 2.Sa3#
- 2.Bd3#
- 2.Qa2#
- 2.Qb3#
- 1...Sd3
- 2.Sa3#
- 2.Bxd3#
- 2.Qc3#
- 2.Qb3#
- 1...Sh5
- 2.Sa3#
- 1...Se6
- 2.Sa3#
- 2.Bd5#
- 1...Se8
- 2.Sa3#
- 1...Qxb2!
- threat
- 1.Qxc1+?
- 1...Qc2+
- 2.Qxc2#
- 1...Rxc1!
- 1...Qc2+
- 1.Qe2?
- threat
- 2.Sb2#
- 2.Se5#
- 1...Qxe2
- 2.Se5#
- 1...Sxe2
- 2.Sb2#
- 1...Sxd3
- 2.Qxd3#
- 1...Qe5
- 2.Sxc1#
- 2.Sb2#
- 2.Sxe5#
- 1...fxe4!
- threat
- 1.Sxc1?
- Keys
- 1.Qg2!
- threat
- 2.Sb2#
- 1...Qxg2
- 2.Se5#
- 1...Sxd3
- 2.Bxd3#
- 1...fxe4
- 2.Qxe4#
- 1...Qe5
- 2.Sxe5#
- 1...Sh5
- 2.Qxg8#
- 1...Se6
- 2.Bd5#
- 1...Se8
- 2.Qxg8#
- threat
- 1.Qg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 9
- Sets
- Q(c);N_GUARD::QAR2(A)
- Q(c);N_GUARD::S(B),XQ(c)
- Q(c);XQ(A)::S(B),XQ(c)
- Q(c);CHECK,N_GUARD::QAR2(A),XQ(c)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- S(a);N_GUARD,XS(B)::QAB1(A)
- Tries
- Try
- S(B);XS(a)
- Threat
- QAB1(A)
- Vars
- Q(c);CHECK,N_GUARD::QAR2(A),XQ(c)
- Refutation
- Q(c);XQ(A)
- Try
- S(B);XP(d)
- Threat
- DUALS(3)
- Vars
- Q(c);CHECK,N_GUARD::QAR2(A),XQ(c)
- Q(c);::S(F)
- S(h);::S(F)
- Refutation
- Q(c);XQ(A)
- Try
- Q(A);CHECK,XS(a)
- Vars
- Q(c);CHECK,N_GUARD,P_SPINQ(c)::QAR2(A),XQ(c)
- Refutation
- R(b);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(c);XQ(A)::S(B)
- S(a);XQ(A)::S(B)
- S(a);OGATE,P_SPINS(a),XS(B)::QAB1(A),XS(a)
- Refutation
- P(g);XB(E)
- Try
- Actual
- Q(A);
- Threat
- S(B)
- Vars
- Q(c);N_GUARD,XQ(A)::S(B)
- S(a);OGATE,XS(B)::B(E),XS(a)
- P(g);OGATE,XB(E)::QAR2(A),XP(g)
- Q(c);N_GUARD::S(B),XQ(c)
- S(h);OGATE::QAB(A),XB(i)
- S(h);S_CUTB(i)::B(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).