MESON Chess Problem Database
Problem Display
PID: 9431 (B4r2/4r3/8/3R1R1N/2P1k2p/4ppPK/6p1/B1n3Q1 w - - 0 1)
Mackenzie, Arthur Ford
1st Prize, Brighton and Hove Society, 1903-1904
(First published on Sat Dec 5 1903)
#2
9 + 8
| 2794 | Terms & Themes of Chess Problems | 1907 |
| 133 | The Problemist Supplement | 2014 |
| 14868 | Pirnie Collection | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Rfxe5#
- 1...Ra7
- 2.Rfe5#
- 1...Rb7
- 2.Rfe5#
- 1...Rc7
- 2.Rfe5#
- 1...Rd7
- 2.Rfe5#
- 1...Ref7
- 2.Rfe5#
- 1...Rg7
- 2.Rfe5#
- 1...Rh7
- 2.Rfe5#
- 1...Rf6
- 2.Sxf6#
- 1...Rxa8
- 2.Sf6#
- 2.Rf4#
- 1...Rb8
- 2.Sf6#
- 2.Rf4#
- 1...Rc8
- 2.Sf6#
- 2.Rf4#
- 1...Rd8
- 2.Sf6#
- 2.Rf4#
- 1...Re8
- 2.Sf6#
- 2.Rf4#
- 1...Rg8
- 2.Sf6#
- 2.Rf4#
- 1...Rh8
- 2.Sf6#
- 2.Rf4#
- 1...Sa2
- 2.Qb1#
- 1...Se2
- 2.Qb1#
- 1...Sb3
- 2.Qb1#
- 1...Sd3
- 2.Rde5#
- 1...e2
- 2.Qd4#
- 1...f2
- 2.Qxg2#
- 1...hxg3
- 2.Sxg3#
- 1...Re5
- Tries
- 1.Sf4?
- threat
- 2.Rde5#
- 1...Re5
- 2.Rdxe5#
- 2.Rfxe5#
- 1...Rxa8!
- threat
- 1.Sg7?
- threat
- 2.Rd4#
- 1...Rxg7
- 2.Rfe5#
- 1...Rxf5!
- threat
- 1.Bf6?
- threat
- 2.Rf4#
- 1...Rxf6
- 2.Sxf6#
- 1...Se2
- 2.Qb1#
- 1...Sd3!
- threat
- 1.Rd1+?
- 1...Rb7
- 2.Re5#
- 1...Rxa8
- 2.Rf4#
- 1...Kxf5!
- 1...Rb7
- 1.Rd2+?
- 1...Rb7
- 2.Re5#
- 1...Rxa8
- 2.Rf4#
- 1...Kxf5!
- 1...Rb7
- 1.Rd6+?
- 1...Rb7
- 2.Re5#
- 1...Rxa8
- 2.Rf4#
- 1...Kxf5!
- 1...Rb7
- 1.Rd7+?
- 1...Rxa8
- 2.Rf4#
- 1...Kxf5!
- 1...Rxa8
- 1.Rd8+?
- 1...Rb7
- 2.Re5#
- 1...Kxf5!
- 1...Rb7
- 1.Rxf3?
- threat
- 2.Rxe3#
- 2.Qxe3#
- 1...Kxf3
- 2.Qxg2#
- 1...Re5
- 2.Rd4#
- 2.Qxe3#
- 1...e2
- 2.Re3#
- 2.Re5#
- 2.Qe3#
- 1...Rxf3!
- threat
- 1.Rxf8?
- threat
- 2.Sf6#
- 2.Rd7#
- 2.Rf4#
- 1...hxg3
- 2.Sxg3#
- 2.Rd7#
- 2.Rf4#
- 1...Re6
- 2.Rd6#
- 2.Rf4#
- 1...Re5
- 2.Rd4#
- 2.Rf4#
- 1...Ra7
- 2.Sf6#
- 2.Rf4#
- 1...Rb7
- 2.Sf6#
- 2.Rf4#
- 1...Rc7
- 2.Sf6#
- 2.Rf4#
- 1...Rd7
- 2.Sf6#
- 2.Rxd7#
- 2.Rf4#
- 1...Re8
- 2.Sf6#
- 2.Rd8#
- 2.Rf4#
- 2.Rxe8#
- 1...Se2
- 2.Sf6#
- 2.Rd7#
- 2.Qb1#
- 1...Sd3
- 2.Sf6#
- 2.Re5#
- 2.Rd7#
- 1...f2
- 2.Rd7#
- 2.Rf4#
- 2.Qxg2#
- 1...Rf7!
- threat
- 1.Qxc1?
- threat
- 2.Qb1#
- 2.Qc2#
- 1...g1Q
- 2.Qc2#
- 1...g1R
- 2.Qc2#
- 1...Rb7
- 2.Rfe5#
- 2.Qc2#
- 1...Rb8
- 2.Sf6#
- 2.Rf4#
- 2.Qc2#
- 1...e2
- 2.Qf4#
- 1...g1S+!
- threat
- 1.Qd1?
- threat
- 2.Rde5#
- 2.Qxf3#
- 2.Qd4#
- 1...Rxf5
- 2.Re5#
- 2.Qd4#
- 1...Rxa8
- 2.Sf6#
- 2.Rf4#
- 2.Qxf3#
- 2.Qd4#
- 1...Re5
- 2.Rdxe5#
- 2.Rfxe5#
- 2.Qxf3#
- 1...e2
- 2.Rde5#
- 2.Qd4#
- 1...Se2
- 2.Rde5#
- 2.Qc2#
- 2.Qb1#
- 2.Qd3#
- 1...Sb3
- 2.Rde5#
- 2.Qc2#
- 2.Qxf3#
- 2.Qb1#
- 2.Qd3#
- 1...Sd3
- 2.Rde5#
- 2.Qxf3#
- 2.Qxd3#
- 1...f2
- 2.Rde5#
- 2.Qf3#
- 2.Qg4#
- 2.Qd4#
- 1...g1S+!
- threat
- 1.gxh4?
- threat
- 2.Sg3#
- 1...Rg7
- 2.Rfe5#
- 1...Rg8
- 2.Sf6#
- 2.Rf4#
- 1...Se2
- 2.Qb1#
- 1...Rxf5!
- threat
- 1.Sf4?
- Keys
- 1.Rf6!
- 1...Rxf6
- 2.Sxf6#
- 1...Rxa8
- 2.Rf4#
- 1...hxg3
- 2.Sxg3#
- 1...Re6
- 2.Rxe6#
- 1...Re5
- 2.Rd4#
- 1...Ra7
- 2.Re6#
- 1...Rb7
- 2.Re6#
- 1...Rc7
- 2.Re6#
- 1...Rd7
- 2.Re6#
- 1...Ref7
- 2.Re6#
- 1...Rg7
- 2.Re6#
- 1...Rh7
- 2.Re6#
- 1...Ree8
- 2.Rd8#
- 1...Rff7
- 2.Rd7#
- 1...Rb8
- 2.Rf4#
- 1...Rc8
- 2.Rf4#
- 1...Rd8
- 2.Rf4#
- 1...Rfe8
- 2.Rf4#
- 1...Rg8
- 2.Rf4#
- 1...Rh8
- 2.Rf4#
- 1...Sa2
- 2.Qb1#
- 1...Se2
- 2.Qb1#
- 1...Sb3
- 2.Qb1#
- 1...Sd3
- 2.Re5#
- 1...e2
- 2.Qd4#
- 1...f2
- 2.Qxg2#
- 1...Rxf6
- 1.Rf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- R(g);N_GUARD::R1(G),XR(g)
- R(g);N_GUARD::R1(G)
- R(h);N_GUARD::S(H),XR(h)
- S(a);OGATE::QAB(B)
- S(a);SBLOCK::B(I)+R(F),DCHECK
- P(c);OGATE::QAR1(B)
- P(d);OGATEB::QAB(B),XP(b)
- P(f);XP(C)::S(H),XP(f)
- Tries
- Try
- S(H);
- Threat
- B(I)+R(F),DCHECK
- Refutation
- R(h);XB(I)
- Try
- S(H);
- Threat
- B(I)+R(F),DCHECK
- Vars
- R(g);N_GUARD,XS(H)::R1(G)
- Refutation
- R(h);XR(G)
- Try
- B(A);
- Threat
- R1(G)
- Vars
- R(h);XB(A)::S(H),XR(h)
- S(a);OGATE::QAB(B)
- Refutation
- S(a);
- Try
- R(F);CHECK
- Vars
- R(g);P_SPINR(g)::R1(G)
- R(h);XB(I)::R1(G)
- Refutation
- K(e);S_FLIGHT,XR(G)
- Try
- R(F);CHECK
- Vars
- R(g);P_SPINR(g)::R1(G)
- R(h);XB(I)::R1(G)
- Refutation
- K(e);S_FLIGHT,XR(G)
- Try
- R(F);CHECK
- Vars
- R(g);P_SPINR(g)::R1(G)
- R(h);XB(I)::R1(G)
- Refutation
- K(e);S_FLIGHT,XR(G)
- Try
- R(F);CHECK
- Vars
- R(h);XB(I)::R1(G)
- Refutation
- K(e);S_FLIGHT,XR(G)
- Try
- R(F);CHECK
- Vars
- R(g);P_SPINR(g)::R1(G)
- Refutation
- K(e);S_FLIGHT,XR(G)
- Try
- R(G);XP(d)
- Threat
- DUALS(2)
- Vars
- K(e);OGATEB,S_FLIGHT,XR(G)::QAB1(B),XP(b)
- Refutation
- R(h);P_PINP(C),XR(G)
- Try
- R(G);XR(h)
- Threat
- DUALS(3)
- Refutation
- R(g);
- Try
- Q(B);XS(a)
- Threat
- DUALS(2)
- Vars
- P(b);::QAB(B)
- P(c);OGATE::QAR1(B)
- Refutation
- P(b);CHECK
- Try
- Q(B);
- Threat
- DUALS(3)
- Refutation
- P(b);CHECK
- Try
- P(C);XP(f)
- Threat
- S(H)
- Vars
- R(g);N_GUARD::R1(G)
- S(a);OGATE::QAB(B)
- Refutation
- R(h);XR(G)
- Try
- Actual
- R(G);
- Vars
- R(h);XR(G)::S(H),XR(h)
- R(h);N_GUARD,XB(I)::R1(G)
- P(f);XP(C)::S(H),XP(f)
- R(g);N_GUARD::R(G),XR(g)
- R(g);SBLOCK::B(I)+R(F),DCHECK
- R(g);N_GUARD::R(G)
- R(g);N_GUARD::B(I)+R(F)
- R(h);N_GUARD::B(I)+R(F)
- R(h);N_GUARD::R1(G)
- S(a);OGATE::QAB(B)
- S(a);SBLOCK::B(I)+R(F),DCHECK
- P(c);OGATE::QAR1(B)
- P(d);OGATEB::QAB(B),XP(b)
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).