MESON Chess Problem Database
Problem Display
PID: 2526 (K6R/6P1/p7/1p6/b2Qp3/rP6/3R2Pq/7k w - - 0 1)
Mackenzie, Arthur Ford
Norwich Mercury, 1905
#2
7 + 7
| 2794 | Terms & Themes of Chess Problems | 1907 |
SOLUTION
- SOUND
- Sets
- 1...Qh3
- 2.Rxh3#
- 1...Qh4
- 2.Rxh4#
- 1...Qh5
- 2.Rxh5#
- 1...Qh6
- 2.Rxh6#
- 1...Qh7
- 2.Rxh7#
- 1...Qxh8+
- 2.gxh8Q#
- 2.gxh8R#
- 1...Ra1
- 2.Qxa1#
- 1...Qh3
- Tries
- 1.Re2?
- threat
- 2.Qd1#
- 1...Qxh8+
- 2.gxh8Q#
- 2.gxh8R#
- 1...Qh3
- 2.Rxh3#
- 1...Qh4
- 2.Rxh4#
- 1...Qh5
- 2.Rxh5#
- 1...Qh6
- 2.Rxh6#
- 1...Qh7
- 2.Rxh7#
- 1...Ra1
- 2.Qxa1#
- 1...Bxb3!
- threat
- 1.Qf2?
- threat
- 2.Rd1#
- 2.Qe1#
- 2.Qf1#
- 1...Qxh8+
- 2.gxh8Q#
- 2.gxh8R#
- 1...Bxb3
- 2.Qe1#
- 2.Qf1#
- 1...Qh3
- 2.Rxh3#
- 1...Qh4
- 2.Rxh4#
- 1...Qh5
- 2.Rxh5#
- 1...Qh6
- 2.Rxh6#
- 1...Qh7
- 2.Rxh7#
- 1...Ra1!
- threat
- 1.Qe3?
- threat
- 2.Qe1#
- 1...Qxh8+
- 2.gxh8Q#
- 2.gxh8R#
- 1...Qh3
- 2.Rxh3#
- 1...Qh4
- 2.Rxh4#
- 1...Qh5
- 2.Rxh5#
- 1...Qh6
- 2.Rxh6#
- 1...Qh7
- 2.Rxh7#
- 1...Ra1!
- threat
- 1.g3?
- threat
- 2.Rdxh2#
- 2.Rhxh2#
- 1...Qxh8+
- 2.gxh8Q#
- 2.gxh8R#
- 1...Qh3
- 2.Rxh3#
- 1...Qh4
- 2.Rxh4#
- 1...Qh5
- 2.Rxh5#
- 1...Qh6
- 2.Rxh6#
- 1...Qh7
- 2.Rxh7#
- 1...Ra2
- 2.Rhxh2#
- 1...e3!
- threat
- 1.g4?
- threat
- 2.Rdxh2#
- 2.Rhxh2#
- 1...Qxh8+
- 2.gxh8Q#
- 2.gxh8R#
- 1...Qh3
- 2.Rxh3#
- 1...Qh4
- 2.Rxh4#
- 1...Qh5
- 2.Rxh5#
- 1...Qh6
- 2.Rxh6#
- 1...Qh7
- 2.Rxh7#
- 1...Ra2
- 2.Rhxh2#
- 1...e3!
- threat
- 1.g8Q?
- threat
- 2.Rd1#
- 1...Qxh8
- 2.Qgxh8#
- 1...Qh3
- 2.Rxh3#
- 1...Qh4
- 2.Rxh4#
- 1...Qh5
- 2.Rxh5#
- 1...Qh6
- 2.Rxh6#
- 1...Qh7
- 2.Rxh7#
- 2.Qxh7#
- 1...Ra1
- 2.Qxa1#
- 1...Bxb3!
- threat
- 1.g8R?
- threat
- 2.Rd1#
- 1...Qxh8
- 2.Rxh8#
- 1...Qh3
- 2.Rxh3#
- 1...Qh4
- 2.Rxh4#
- 1...Qh5
- 2.Rxh5#
- 1...Qh6
- 2.Rxh6#
- 1...Qh7
- 2.Rxh7#
- 1...Ra1
- 2.Qxa1#
- 1...Bxb3!
- threat
- 1.Re2?
- Keys
- 1.Rc2!
- threat
- 2.Qd1#
- 1...Qxh8+
- 2.gxh8Q#
- 2.gxh8R#
- 1...Qh3
- 2.Rxh3#
- 1...Qh4
- 2.Rxh4#
- 1...Qh5
- 2.Rxh5#
- 1...Qh6
- 2.Rxh6#
- 1...Qh7
- 2.Rxh7#
- 1...Ra1
- 2.Qxa1#
- threat
- 1.Rc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(b);OGATEB::R(G),XQ(b)
- Q(b);CHECK,N_SPINQ(b),OGATE,XR(G)::PXQ(b)=Q
- R(c);N_GUARD::QAB1(D),XR(c)
- Tries
- Try
- R(A);
- Threat
- QAR(D)
- Vars
- Q(b);CHECK,N_SPINQ(b),OGATE,XR(G)::PXQ(b)=Q
- Q(b);OGATEB::R(G),XQ(b)
- R(c);N_GUARD::QAB1(D),XR(c)
- Refutation
- B(d);XP(C)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,N_SPINQ(b),OGATE,XR(G)::PXQ(b)=Q
- Q(b);OGATEB::R(G),XQ(b)
- Refutation
- R(c);
- Try
- Q(D);
- Threat
- QAR(D)
- Vars
- Q(b);CHECK,N_SPINQ(b),OGATE,XR(G)::PXQ(b)=Q
- Q(b);OGATEB::R(G),XQ(b)
- Refutation
- R(c);
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_SPINQ(b),OGATE,XR(G)::PXQ(b)=Q
- Q(b);OGATEB::R(G),XQ(b)
- R(c);::R1(G),XQ(b)
- Refutation
- P(e);
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_SPINQ(b),OGATE,XR(G)::PXQ(b)=Q
- Q(b);OGATEB::R(G),XQ(b)
- R(c);::R1(G),XQ(b)
- Refutation
- P(e);
- Try
- P(E);
- Threat
- R(A)
- Vars
- Q(b);N_SPINQ(b),OGATE,P_PINQ(E),XR(G)::QAB(E),XQ(b)
- Q(b);OGATEB::R(G),XQ(b)
- R(c);N_GUARD::QAB1(D),XR(c)
- Refutation
- B(d);XP(C)
- Try
- P(E);
- Threat
- R(A)
- Vars
- Q(b);N_SPINQ(b),OGATE,P_PINR(E),XR(G)::R(E),XQ(b)
- Q(b);OGATEB::R(G),XQ(b)
- R(c);N_GUARD::QAB1(D),XR(c)
- Refutation
- B(d);XP(C)
- Try
- Actual
- R(A);
- Threat
- QAR(D)
- Vars
- Q(b);CHECK,N_SPINQ(b),OGATE,XR(G)::PXQ(b)=Q
- Q(b);OGATEB::R(G),XQ(b)
- R(c);N_GUARD::QAB1(D),XR(c)
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).