MESON Chess Problem Database
Problem Display
PID: 62285 (1N3R2/4p3/rRq1k3/2P4B/2P5/5r2/6Qp/Bb4nK w - - 0 1)
Macleod, Norman Alasdair
British Chess Magazine, 1951
#2
9 + 8
| 45 | Schach | 1952 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Qd5#
- 2.Qxc6#
- 1...Rf2
- 2.Qd5#
- 2.Qxc6#
- 1...Rfa3
- 2.Qd5#
- 2.Qxc6#
- 1...Rb3
- 2.Qd5#
- 2.Qxc6#
- 1...Rc3
- 2.Qd5#
- 1...Rd3
- 2.Bg4#
- 2.Qe4#
- 1...Re3
- 2.Qd5#
- 2.Qxc6#
- 1...Rg3
- 2.Qd5#
- 2.Qxc6#
- 1...Rh3
- 2.Qd5#
- 2.Qxc6#
- 1...Rf4
- 2.Qd5#
- 2.Qxc6#
- 1...Rf5
- 2.Qxc6#
- 1...Rf6
- 2.Qd5#
- 1...Rf7
- 2.Qd5#
- 1...Rxf8
- 2.Qd5#
- 1...Ra2
- 2.Rxc6#
- 1...Raa3
- 2.Rxc6#
- 1...Ra4
- 2.Rxc6#
- 1...Ra5
- 2.Rxc6#
- 1...Ra7
- 2.Rxc6#
- 1...Ra8
- 2.Rxc6#
- 1...Bf5
- 2.Bf7#
- 2.Qg8#
- 1...Rf1
- Tries
- 1.Bxf3?
- threat
- 2.Bd5#
- 2.Qg8#
- 1...Rxb6
- 2.Qg8#
- 1...Sxf3
- 2.Qg8#
- 1...Be4
- 2.Qg8#
- 1...Bg6
- 2.Bd5#
- 2.Qxg6#
- 1...Bh7
- 2.Bd5#
- 1...Rxa1!
- threat
- 1.Bg4+?
- 1...Rf5
- 2.Qd5#
- 2.Qxc6#
- 1...Bf5!
- 1...Rf5
- 1.Bf7+?
- 1...Rxf7
- 2.Qd5#
- 1...Kf5!
- 1...Rxf7
- 1.Rf4?
- threat
- 2.Bf7#
- 2.Qg8#
- 1...Rxf4
- 2.Qd5#
- 1...Rc3
- 2.Qd5#
- 1...Rf1
- 2.Bf7#
- 2.Qd5#
- 2.Qxc6#
- 1...Rf2
- 2.Bf7#
- 2.Qd5#
- 2.Qxc6#
- 1...Rfa3
- 2.Bf7#
- 2.Qd5#
- 2.Qxc6#
- 1...Rb3
- 2.Bf7#
- 2.Qd5#
- 2.Qxc6#
- 1...Rd3
- 2.Bg4#
- 2.Bf7#
- 2.Qe4#
- 1...Re3
- 2.Bf7#
- 2.Qd5#
- 2.Qxc6#
- 1...Rg3
- 2.Bf7#
- 2.Qd5#
- 2.Qxc6#
- 1...Rh3
- 2.Bf7#
- 2.Qd5#
- 2.Qxc6#
- 1...Bf5
- 2.Qg8#
- 1...Bg6
- 2.Qxg6#
- 1...Bh7
- 2.Bf7#
- 1...Rxa1!
- threat
- 1.Rf6+?
- 1...Rxf6
- 2.Qd5#
- 1...exf6!
- 1...Rxf6
- 1.Qxf3?
- threat
- 2.Bf7#
- 2.Qd5#
- 2.Qxc6#
- 1...Qxb6
- 2.Bf7#
- 2.Qd5#
- 2.Qf7#
- 1...Rxa1
- 2.Qd5#
- 1...Rxb6
- 2.Bf7#
- 1...Qd6
- 2.Bf7#
- 2.Qd5#
- 2.Qf7#
- 1...Be4
- 2.Bf7#
- 2.Qxe4#
- 1...Bg6
- 2.Qd5#
- 2.Qxc6#
- 1...Sxf3!
- threat
- 1.Qg4+?
- 1...Bf5
- 2.Bf7#
- 2.Qg8#
- 1...Rf5+!
- 1...Bf5
- 1.Bxf3?
- Keys
- 1.Rf5!
- threat
- 2.Qg6#
- 1...Kxf5
- 2.Qg4#
- 1...Rxf5
- 2.Qxc6#
- 1...Bxf5
- 2.Qg8#
- 1...Rf1
- 2.Qd5#
- 1...Rf2
- 2.Qd5#
- 1...Rfa3
- 2.Qd5#
- 1...Rb3
- 2.Qd5#
- 1...Rc3
- 2.Qd5#
- 1...Rd3
- 2.Qe4#
- 1...Re3
- 2.Qd5#
- 1...Rg3
- 2.Qd5#
- 1...Rh3
- 2.Qd5#
- 1...Rf4
- 2.Qd5#
- threat
- 1.Rf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 9
- Sets
- R(d);OGATE,P_PINQ(C)::QAB1(C)
- R(d);OGATE,P_PINQ(C)::QAR2(C),XQ(f)
- R(d);OGATE,P_PINQ(C),XR(I)::QAB1(C)
- R(e);N_GUARD::R(G),XQ(f)
- Tries
- Try
- B(F);XR(d)
- Threat
- DUALS(2)
- Vars
- R(e);N_SPINQ(f),XR(G)::QAB(C)
- S(b);XB(F)::QAB(C)
- B(a);::QAB(C)
- B(a);::B(F)
- Refutation
- R(e);XB(A)
- Try
- B(F);CHECK
- Refutation
- B(a);P_SPINB(a)
- Try
- B(F);CHECK
- Vars
- R(d);OGATE,P_PINQ(C),XB(F)::QAB1(C)
- Refutation
- K(g);N_SPINQ(f),S_FLIGHT
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(d);OGATE,P_PINQ(C),XR(I)::QAB1(C)
- R(d);OGATE,P_PINQ(C)::QAB1(C)
- B(a);::QAB(C)
- B(a);N_GUARD::QAR2(C),XB(a)
- B(a);::B(F)
- Refutation
- R(e);XB(A)
- Try
- R(I);CHECK
- Vars
- R(d);OGATE,P_PINQ(C),XR(I)::QAB1(C)
- Refutation
- P(h);XR(I)
- Try
- Q(C);P_SPINQ(C),XR(d)
- Threat
- DUALS(3)
- Vars
- R(e);XB(A)::QAB1(C)
- R(e);N_SPINQ(f),XR(G)::B(F)
- Refutation
- S(b);XQ(C)
- Try
- Q(C);CHECK
- Refutation
- R(d);CHECK,P_SPINR(d)
- Try
- Actual
- R(I);
- Threat
- QAR2(C)
- Vars
- K(g);N_SPINQ(f),OGATEB,S_FLIGHT,XR(I)::QAB1(C)
- R(d);OGATE,P_PINQ(C),SBLOCK,XR(I)::QAR2(C),XQ(f)
- B(a);SBLOCK,XR(I)::QAB(C)
- R(d);OGATE,P_PINQ(C)::QAB1(C)
- R(d);OGATE,P_PINQ(C)::QAR2(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).