MESON Chess Problem Database
Problem Display
PID: 142111 (b3r3/2P5/Q5P1/KR5N/3Bk1P1/5p1B/N2R4/1n6 w - - 0 1)
Mackenzie, Arthur Ford
British Chess Magazine 06. Ty., 1890
#2
11 + 5
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Rxe5#
- 1...Re6
- 2.Qxe6#
- 1...Re7
- 2.Qxa8#
- 1...Rb8
- 2.Re5#
- 2.Qe6#
- 1...Rc8
- 2.Re5#
- 2.Qe6#
- 1...Rd8
- 2.Re5#
- 2.Qe6#
- 1...Rf8
- 2.Re5#
- 2.Qe6#
- 1...Rg8
- 2.Re5#
- 2.Qe6#
- 1...Rh8
- 2.Re5#
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...f2
- 2.Bg2#
- 1...Re5
- Tries
- 1.Rxb1?
- threat
- 2.Sc3#
- 1...Kd5
- 2.Sc3#
- 2.Sf6#
- 1...f2
- 2.Bg2#
- 1...Re5+!
- threat
- 1.Rf5?
- threat
- 2.Sg3#
- 2.Sf6#
- 2.Qd3#
- 1...Re5+
- 2.Rxe5#
- 1...Re6
- 2.Sg3#
- 2.Qd3#
- 2.Qxe6#
- 1...Rf8
- 2.Sg3#
- 2.Re5#
- 2.Qd3#
- 2.Qe6#
- 1...Sxd2!
- threat
- 1.Rg5?
- threat
- 2.Qd3#
- 1...Re5+
- 2.Rxe5#
- 1...Sxd2!
- threat
- 1.Qc8?
- threat
- 2.Qf5#
- 2.Qxe8#
- 1...Rxc8
- 2.Re5#
- 1...f2
- 2.Bg2#
- 2.Qf5#
- 1...Bd5
- 2.Qf5#
- 1...Re5
- 2.Rxe5#
- 1...Re6
- 2.Qxe6#
- 1...Re7
- 2.Qf5#
- 2.Qxa8#
- 1...Rd8
- 2.Re5#
- 2.Qf5#
- 2.Qe6#
- 1...Rf8
- 2.Re5#
- 2.Qe6#
- 1...Rg8
- 2.Re5#
- 2.Qf5#
- 2.Qe6#
- 1...Rh8
- 2.Re5#
- 2.Qf5#
- 2.Qe6#
- 1...Bc6
- 2.Qf5#
- 1...Sxd2!
- threat
- 1.Qd6?
- threat
- 2.Sg3#
- 2.Sf6#
- 2.Qf4#
- 1...f2
- 2.Bg2#
- 2.Qf4#
- 1...Re5
- 2.Rxe5#
- 2.Qxe5#
- 1...Re6
- 2.Sg3#
- 2.Qf4#
- 2.Qxe6#
- 1...Rf8
- 2.Sg3#
- 2.Re5#
- 2.Qe5#
- 2.Qe7#
- 2.Qe6#
- 1...Sxd2!
- threat
- 1.Qf6?
- threat
- 2.Sg3#
- 2.Qf4#
- 2.Qf5#
- 1...Re5
- 2.Sg3#
- 2.Rxe5#
- 2.Qxe5#
- 2.Qf4#
- 1...Rf8
- 2.Sg3#
- 2.Re5#
- 2.Qe5#
- 2.Qe7#
- 2.Qe6#
- 1...Sxd2!
- threat
- 1.g7?
- threat
- 2.Qg6#
- 1...f2
- 2.Bg2#
- 1...Re5
- 2.Rxe5#
- 1...Re6
- 2.Qxe6#
- 1...Rf8
- 2.Re5#
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 1...Sxd2!
- threat
- 1.c8Q?
- threat
- 2.Qf5#
- 2.Qaxa8#
- 2.Qc2#
- 2.Qxe8#
- 1...Rxc8
- 2.Re5#
- 2.Qe6#
- 1...f2
- 2.Bg2#
- 2.Qf5#
- 2.Qaxa8#
- 1...Bd5
- 2.Qf5#
- 2.Qc2#
- 1...Re5
- 2.Rxe5#
- 2.Qc2#
- 1...Re6
- 2.Qcxe6#
- 2.Qaxe6#
- 2.Qc2#
- 1...Re7
- 2.Qf5#
- 2.Qc2#
- 1...Rd8
- 2.Re5#
- 2.Qf5#
- 2.Qce6#
- 2.Qae6#
- 2.Qc2#
- 1...Rf8
- 2.Re5#
- 2.Qce6#
- 2.Qae6#
- 2.Qaxa8#
- 2.Qc2#
- 1...Rg8
- 2.Re5#
- 2.Qf5#
- 2.Qce6#
- 2.Qae6#
- 2.Qaxa8#
- 2.Qc2#
- 1...Rh8
- 2.Re5#
- 2.Qf5#
- 2.Qce6#
- 2.Qae6#
- 2.Qaxa8#
- 2.Qc2#
- 1...Bc6
- 2.Qf5#
- 2.Qaxc6#
- 2.Qcxc6#
- 1...Bb7
- 2.Qaxb7#
- 2.Qf5#
- 2.Qcxb7#
- 2.Qc2#
- 2.Qxe8#
- 1...Sa3
- 2.Sc3#
- 2.Qf5#
- 2.Qaxa8#
- 2.Qxe8#
- 1...Sc3
- 2.Sxc3#
- 2.Qf5#
- 2.Qxe8#
- 1...Sxd2!
- threat
- 1.c8S?
- threat
- 2.Sd6#
- 2.Qxa8#
- 1...Rxc8
- 2.Re5#
- 2.Qe6#
- 1...f2
- 2.Bg2#
- 2.Qxa8#
- 1...Bd5
- 2.Sd6#
- 1...Re5
- 2.Sd6#
- 2.Rxe5#
- 1...Re6
- 2.Qxe6#
- 1...Re7
- 2.Sd6#
- 1...Rd8
- 2.Re5#
- 2.Qe6#
- 1...Bc6
- 2.Sd6#
- 2.Qxc6#
- 1...Bb7
- 2.Sd6#
- 2.Qxb7#
- 1...Sc3
- 2.Sxc3#
- 2.Sd6#
- 1...Sxd2!
- threat
- 1.c8B?
- threat
- 2.Bf5#
- 2.Qxa8#
- 1...Rxc8
- 2.Re5#
- 2.Qe6#
- 1...f2
- 2.Bg2#
- 2.Qxa8#
- 1...Bd5
- 2.Bf5#
- 1...Re5
- 2.Rxe5#
- 1...Re6
- 2.Qxe6#
- 1...Re7
- 2.Bf5#
- 1...Rd8
- 2.Bf5#
- 2.Re5#
- 2.Qe6#
- 1...Rf8
- 2.Re5#
- 2.Qe6#
- 2.Qxa8#
- 1...Bc6
- 2.Bf5#
- 2.Qxc6#
- 1...Bb7
- 2.Bf5#
- 2.Bxb7#
- 2.Qxb7#
- 1...Sc3
- 2.Sxc3#
- 2.Bf5#
- 1...Sxd2!
- threat
- 1.Rxb1?
- Keys
- 1.Rb4!
- 1...Re5+
- 2.Bc5#
- 1...Kd5
- 2.Sf6#
- 1...Sxd2
- 2.Sc3#
- 1...f2
- 2.Bg2#
- 1...Bd5
- 2.Qd3#
- 1...Re6
- 2.Qxe6#
- 1...Re7
- 2.Qxa8#
- 1...Rb8
- 2.Qe6#
- 1...Rc8
- 2.Qe6#
- 1...Rd8
- 2.Qe6#
- 1...Rf8
- 2.Qe6#
- 1...Rg8
- 2.Qe6#
- 1...Rh8
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Re5+
- 1.Rb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD,P_PINR(G)::R1(G),XR(e)
- R(e);N_GUARD::QAR2(I),XR(e)
- R(e);N_GUARD::QAB(I),XB(d)
- B(d);N_GUARD::QAB(I),XB(d)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(b);OGATEB::B(C)
- Tries
- Try
- R(G);XS(a)
- Threat
- S(A)
- Vars
- P(b);OGATEB::B(C)
- Refutation
- R(e);CHECK
- Try
- R(G);
- Threat
- DUALS(3)
- Vars
- R(e);CHECK,N_GUARD::R1(G),XR(e)
- Refutation
- S(a);XR(B)
- Try
- R(G);
- Threat
- QAB1(I)
- Vars
- R(e);CHECK,N_GUARD::R1(G),XR(e)
- Refutation
- S(a);XR(B)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD,XQ(I)::R1(G)
- B(d);::QAB1(I)
- R(e);N_GUARD,P_PINR(G)::R1(G),XR(e)
- R(e);N_GUARD::QAR2(I),XR(e)
- Refutation
- S(a);XR(B)
- Try
- Q(I);
- Threat
- DUALS(3)
- Refutation
- S(a);XR(B)
- Try
- Q(I);
- Threat
- DUALS(3)
- Refutation
- S(a);XR(B)
- Try
- P(J);
- Threat
- QAB(I)
- Vars
- P(b);OGATEB::B(C)
- R(e);N_GUARD,P_PINR(G)::R1(G),XR(e)
- R(e);N_GUARD::QAR2(I),XR(e)
- B(d);N_GUARD::QAB(I),XB(d)
- Refutation
- S(a);XR(B)
- Try
- P(K);
- Threat
- DUALS(4)
- Refutation
- S(a);XR(B)
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- B(d);::S(K)
- R(e);N_GUARD::QAR2(I),XR(e)
- R(e);::S(K)
- Refutation
- S(a);XR(B)
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- B(d);::B(K)
- R(e);N_GUARD,P_PINR(G)::R1(G),XR(e)
- R(e);N_GUARD::QAR2(I),XR(e)
- R(e);::B(K)
- Refutation
- S(a);XR(B)
- Try
- Actual
- R(G);
- Vars
- R(e);CHECK,SBLOCK::R(G)+B(D)
- K(c);S_FLIGHT::S(H)
- S(a);N_GUARD,XR(B)::S(A)
- P(b);OGATEB::B(C)
- B(d);SBLOCK::QAB1(I)
- R(e);N_GUARD::QAR2(I),XR(e)
- R(e);N_GUARD::QAB(I),XB(d)
- R(e);N_GUARD::QAR2(I)
- B(d);N_GUARD::QAB(I),XB(d)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
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).