MESON Chess Problem Database
Problem Display
PID: 153764 (5N2/8/3p1n1N/1R1Pk2r/3p1n2/5P2/7P/5KQ1 w - - 0 1)
Mackenzie, Arthur Ford
Western Daily Mercury, 1904
#2
8 + 6
| 133 | The Problemist Supplement | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Rxh2
- 2.Qg5#
- 1...Rh3
- 2.Qg5#
- 1...Rh4
- 2.Qg5#
- 1...Rf5
- 2.Sf7#
- 1...Rg5
- 2.Qxg5#
- 1...Rxh6
- 2.Qg5#
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...S4xd5
- 2.Qg3#
- 1...Se6
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...S6xd5
- 2.Qg7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Se8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Rxh2
- Tries
- 1.Ra5?
- 1...Rxh2
- 2.Qg5#
- 1...Rxh6
- 2.Qg5#
- 1...S4xd5
- 2.Qg3#
- 1...S6xd5
- 2.Qg7#
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Se6
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Se8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Rh3
- 2.Qg5#
- 1...Rh4
- 2.Qg5#
- 1...Rf5
- 2.Sf7#
- 1...Rg5
- 2.Qxg5#
- 1...d3!
- 1...Rxh2
- 1.Qe3+?
- 1...Se4
- 2.Sd7#
- 1...dxe3!
- 1...Se4
- 1.Qg3?
- threat
- 2.Sg6#
- 1...Rxh6
- 2.Qg5#
- 1...Sxd5
- 2.Qg7#
- 1...Se4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Se8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Rg5
- 2.Qxg5#
- 1...d3!
- threat
- 1.Qg4?
- threat
- 2.Sf7#
- 1...Rxh6
- 2.Qg5#
- 1...Sxg4
- 2.Sd7#
- 1...S6xd5
- 2.Sd7#
- 2.Qg7#
- 1...Se4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Se8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...d3!
- threat
- 1.Qg7?
- threat
- 2.Sd7#
- 1...Rxh6
- 2.Qg5#
- 1...Sxd5
- 2.Qg3#
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Se6
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...d3!
- threat
- 1.Qg8?
- 1...Rxh2
- 2.Qg5#
- 1...Rxh6
- 2.Qg5#
- 1...S4xd5
- 2.Sg6#
- 2.Qg3#
- 1...S6xd5
- 2.Sd7#
- 2.Qg7#
- 2.Qh8#
- 1...Sxg8
- 2.Sd7#
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Se6
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Se8
- 2.Sd7#
- 1...Rh3
- 2.Qg5#
- 1...Rh4
- 2.Qg5#
- 1...Rf5
- 2.Sf7#
- 1...Rg5
- 2.Qxg5#
- 1...d3!
- 1...Rxh2
- 1.h3?
- 1...Rxh3
- 2.Qg5#
- 1...Rxh6
- 2.Qg5#
- 1...Sxh3
- 2.Sg6#
- 1...S4xd5
- 2.Qh2#
- 2.Qg3#
- 1...S6xd5
- 2.Qg7#
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Se6
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Se8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Rh4
- 2.Qg5#
- 1...Rf5
- 2.Sf7#
- 1...Rg5
- 2.Qxg5#
- 1...d3!
- 1...Rxh3
- 1.h4?
- 1...Rxh4
- 2.Qg5#
- 1...Rxh6
- 2.Qg5#
- 1...S4xd5
- 2.Qh2#
- 2.Qg3#
- 1...S6xd5
- 2.Qg7#
- 1...Se2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Se6
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Se8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Rf5
- 2.Sf7#
- 1...Rg5
- 2.Qxg5#
- 1...d3!
- 1...Rxh4
- 1.Ra5?
- Keys
- 1.Qg2!
- 1...Rxh2
- 2.Qg5#
- 1...Rxh6
- 2.Qg5#
- 1...Sxg2
- 2.Sg6#
- 1...S4xd5
- 2.Qg3#
- 1...S6xd5
- 2.Qg7#
- 1...Se2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Se6
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Se8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...d3
- 2.Qb2#
- 1...Rh3
- 2.Qg5#
- 1...Rh4
- 2.Qg5#
- 1...Rf5
- 2.Sf7#
- 1...Rg5
- 2.Qxg5#
- 1...Rxh2
- 1.Qg2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD,XP(C)::QAR2(B)
- R(d);N_GUARD::QAR2(B)
- R(d);SBLOCK::S(G)
- R(d);N_GUARD::QAR2(B),XR(d)
- R(d);N_GUARD,XS(G)::QAR2(B)
- S(b);N_GUARD::S(H)
- S(b);OGATEB,P_SPINS(b),XP(F)::QAB(B)
- S(b);N_GUARD::S(H),XS(b)
- S(f);N_GUARD::S(H)
- S(f);OGATEB,P_SPINS(f),XP(F)::QAB(B)
- S(f);N_GUARD::S(H),XS(f)
- Tries
- Try
- R(E);
- Vars
- R(d);N_GUARD,XP(C)::QAR2(B)
- R(d);N_GUARD,XS(G)::QAR2(B)
- S(b);OGATEB,P_SPINS(b),XP(F)::QAB(B)
- S(f);OGATEB,P_SPINS(f),XP(F)::QAB(B)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- R(d);N_GUARD::QAR2(B)
- R(d);SBLOCK::S(G)
- R(d);N_GUARD::QAR2(B),XR(d)
- Refutation
- P(a);
- Try
- Q(B);CHECK
- Vars
- S(f);P_SPINS(f)::S(H)
- Refutation
- P(a);XQ(B)
- Try
- Q(B);P_PINS(b)
- Threat
- S(H)
- Vars
- R(d);N_GUARD,XS(G)::QAR2(B)
- S(f);OGATEB,XP(F)::QAB(B)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- R(d);N_GUARD::QAR2(B),XR(d)
- Refutation
- P(a);
- Try
- Q(B);
- Threat
- S(G)
- Vars
- R(d);N_GUARD,XS(G)::QAR2(B)
- S(f);N_GUARD,XQ(B)::S(H)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- Refutation
- P(a);
- Try
- Q(B);P_PINS(f)
- Threat
- S(H)
- Vars
- R(d);N_GUARD,XS(G)::QAR2(B)
- S(b);N_SPINS(f),OGATEB,P_SPINS(b),XP(F)::QAB(B)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- Refutation
- P(a);
- Try
- Q(B);
- Vars
- R(d);N_GUARD,XP(C)::QAR2(B)
- R(d);N_GUARD,XS(G)::QAR2(B)
- S(f);N_GUARD,XQ(B)::S(H)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- R(d);N_GUARD::QAR2(B)
- R(d);SBLOCK::S(G)
- R(d);N_GUARD::QAR2(B),XR(d)
- Refutation
- P(a);
- Try
- P(C);
- Vars
- R(d);N_GUARD,XP(C)::QAR2(B)
- R(d);N_GUARD,XS(G)::QAR2(B)
- S(b);N_GUARD,XP(C)::S(H)
- S(f);OGATEB,P_SPINS(f),XP(F)::QAB(B)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- R(d);N_GUARD::QAR2(B)
- R(d);SBLOCK::S(G)
- R(d);N_GUARD::QAR2(B),XR(d)
- Refutation
- P(a);
- Try
- P(C);
- Vars
- R(d);N_GUARD,XP(C)::QAR2(B)
- R(d);N_GUARD,XS(G)::QAR2(B)
- S(f);OGATEB,P_SPINS(f),XP(F)::QAB(B)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- R(d);SBLOCK::S(G)
- R(d);N_GUARD::QAR2(B),XR(d)
- Refutation
- P(a);
- Try
- Actual
- Q(B);
- Vars
- R(d);N_GUARD,XP(C)::QAR2(B)
- R(d);N_GUARD,XS(G)::QAR2(B)
- S(b);N_GUARD,XQ(B)::S(H)
- S(b);OGATEB,P_SPINS(b),XP(F)::QAB(B)
- S(f);OGATEB,P_SPINS(f),XP(F)::QAB(B)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- P(a);OGATEB::QAB(B)
- R(d);N_GUARD::QAR2(B)
- R(d);SBLOCK::S(G)
- R(d);N_GUARD::QAR2(B),XR(d)
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).