MESON Chess Problem Database
Problem Display
PID: 41417 (k6q/BpP1pp2/1R6/1N6/1Kp5/1Ppp4/8/Q6r w - - 0 1)
Barnes, Barry Peter
2nd Comm., Main-Post, 1963
#2
7 + 9
| 4199 | Barnes about Chess Problems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.c8Q#
- 2.c8R#
- 1...Qf6
- 2.c8Q#
- 2.c8R#
- 1...Qg7
- 2.c8Q#
- 2.c8R#
- 1...Qh4
- 2.c8Q#
- 2.c8R#
- 1...Qh5
- 2.c8Q#
- 2.c8R#
- 1...Qh6
- 2.c8Q#
- 2.c8R#
- 1...Qh7
- 2.c8Q#
- 2.c8R#
- 1...Qb8
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qd8
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rh3
- 2.Bb8#
- 1...Rh4
- 2.Bb8#
- 1...Rh5
- 2.Bb8#
- 1...Rh6
- 2.Bb8#
- 1...Rh7
- 2.Bb8#
- 1...Qd4
- Tries
- 1.Qxh1?
- threat
- 2.Qxb7#
- 2.Qxh8#
- 1...Qxh1
- 2.c8Q#
- 2.c8R#
- 1...Qd4
- 2.Qxb7#
- 2.c8Q#
- 2.c8R#
- 1...Qe5
- 2.Qxb7#
- 1...Qf6
- 2.Qxb7#
- 2.c8Q#
- 2.c8R#
- 1...Qg7
- 2.Qxb7#
- 2.c8Q#
- 2.c8R#
- 1...Qh2
- 2.Qxb7#
- 1...Qh3
- 2.Qxb7#
- 1...Qh4
- 2.Qxb7#
- 2.c8Q#
- 2.c8R#
- 1...Qh5
- 2.Qxb7#
- 2.c8Q#
- 2.c8R#
- 1...Qh6
- 2.Qxb7#
- 2.c8Q#
- 2.c8R#
- 1...Qh7
- 2.Qxb7#
- 2.c8Q#
- 2.c8R#
- 1...Qb8
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qd8
- 2.Qxb7#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Qe8
- 2.Qxb7#
- 1...Qf8
- 2.Qxb7#
- 1...Qg8
- 2.Qxb7#
- 1...Qc8!
- threat
- 1.Qa3?
- threat
- 2.Bb8#
- 1...Qb8
- 2.Bxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Ra1!
- threat
- 1.Qa4?
- threat
- 2.Bb8#
- 1...Qb8
- 2.Bxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Ra1!
- threat
- 1.Qa5?
- threat
- 2.Bb8#
- 1...Qb8
- 2.Bxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Ra1!
- threat
- 1.c8B?
- threat
- 2.Sc7#
- 2.Bxb7#
- 1...Rxa1
- 2.Bxb7#
- 1...Qe5
- 2.Bxb7#
- 1...Qh2
- 2.Bxb7#
- 1...Qd8
- 2.Bxb7#
- 1...Qxc8!
- threat
- 1.Qxh1?
- Keys
- 1.Rh6!
- threat
- 2.Bg1#
- 1...Qxh6
- 2.c8Q#
- 2.c8R#
- 1...Rxa1
- 2.Rxh8#
- 1...Rxh6
- 2.Bb6#
- 1...b6
- 2.Qxh1#
- 1...Qd4
- 2.c8Q#
- 2.c8R#
- 1...Qf6
- 2.c8Q#
- 2.c8R#
- 1...Qb8
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rb1
- 2.Rxh8#
- 1...Rc1
- 2.Rxh8#
- 1...Rd1
- 2.Rxh8#
- 1...Re1
- 2.Rxh8#
- 1...Rf1
- 2.Rxh8#
- 1...Rg1
- 2.Bxg1#
- 1...Rh2
- 2.Bf2#
- 1...c2
- 2.Qxh8#
- threat
- 1.Rh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 10
- REMOVED MATES = 4
- Sets
- Q(i);N_GUARD::P=Q
- Q(i);N_GUARD,SBLOCK::P=Q
- Q(i);OGATE::PXQ(i)=Q
- R(a);N_GUARD::QAR(A)+B(F)
- R(a);N_GUARD,SBLOCK::QAR(A)+B(F)
- Tries
- Try
- Q(A);P_PINP(e),XR(a)
- Threat
- DUALS(2)
- Vars
- Q(i);N_GUARD,N_SPINP(e),XQ(A)::P=Q
- Q(i);::QAB1(A),XP(e)
- Q(i);OGATE::PXQ(i)=Q
- Refutation
- Q(i);
- Try
- Q(A);
- Threat
- QAR(A)+B(F)
- Refutation
- R(a);
- Try
- Q(A);
- Threat
- QAR(A)+B(F)
- Refutation
- R(a);
- Try
- Q(A);
- Threat
- QAR(A)+B(F)
- Refutation
- R(a);
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- R(a);XQ(A)::B(G),XP(e)
- Q(i);::B(G),XP(e)
- Refutation
- Q(i);XB(G)
- Try
- Actual
- R(E);
- Threat
- QAR(A)+B(F)
- Vars
- Q(i);N_GUARD,SBLOCK,XR(E)::P=Q
- R(a);N_GUARD,XQ(A)::R(E),XQ(i)
- R(a);N_GUARD,SBLOCK,XR(E)::QAR(A)+B(F)
- P(e);OGATEB::QAB(A),XR(a)
- Q(i);N_GUARD::P=Q
- Q(i);OGATE::PXQ(i)=Q
- R(a);N_GUARD,P_PINP(B)::R(E),XQ(i)
- R(a);N_GUARD::R(E),XQ(i)
- R(a);::QAR(A)+B(F),XR(a)
- R(a);N_GUARD::QAR(A)+B(F)
- P(b);OGATE::QAB1(A),XQ(i)
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).