MESON Chess Problem Database
Problem Display
PID: 108937 (5K1k/1R3p2/6Pn/4N3/4n3/8/8/6Q1 w - - 0 1)
Meredith, William
Checkmate, 1901
#2
5 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sg4
- 2.Sxf7#
- 1...Sf5
- 2.Sxf7#
- 1...Sg8
- 2.Sxf7#
- 1...fxg6
- 2.Sxg6#
- 1...f5
- 2.Rh7#
- 1...f6
- 2.Rh7#
- 1...Sg4
- Tries
- 1.Qf2?
- 1...fxg6
- 2.Sxg6#
- 1...Sd2
- 2.Qf6#
- 1...Sc3
- 2.Qf6#
- 1...Sg3
- 2.Qf6#
- 1...Sc5
- 2.Qf6#
- 1...Sg5
- 2.Qf6#
- 1...Sd6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sg4
- 2.Sxf7#
- 1...Sf5
- 2.Sxf7#
- 1...Sg8
- 2.Sxf7#
- 1...f5
- 2.Rh7#
- 1...f6
- 2.Rh7#
- 1...Sxf2!
- 1...fxg6
- 1.Qh2?
- threat
- 2.Sxf7#
- 2.Qxh6#
- 1...fxg6
- 2.Sxg6#
- 2.Qxh6#
- 1...Sd6
- 2.Qxh6#
- 1...Sf6
- 2.Sxf7#
- 1...f5
- 2.Sf7#
- 2.Rh7#
- 2.Qxh6#
- 1...f6
- 2.Sf7#
- 2.Rh7#
- 2.Qxh6#
- 1...Sg5!
- threat
- 1.Qd4?
- threat
- 2.Sxf7#
- 1...fxg6
- 2.Sxg6#
- 1...f5
- 2.Sf7#
- 2.Rh7#
- 1...f6
- 2.Rh7#
- 1...Sf6!
- threat
- 1.Qb6?
- 1...fxg6
- 2.Sxg6#
- 1...Sd2
- 2.Qf6#
- 1...Sf2
- 2.Qf6#
- 1...Sc3
- 2.Qf6#
- 1...Sg3
- 2.Qf6#
- 1...Sc5
- 2.Qf6#
- 1...Sg5
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sg4
- 2.Sxf7#
- 1...Sf5
- 2.Sxf7#
- 1...Sg8
- 2.Sxf7#
- 1...f5
- 2.Rh7#
- 1...f6
- 2.Rh7#
- 1...Sd6!
- 1...fxg6
- 1.Qf1?
- 1...fxg6
- 2.Sxg6#
- 1...Sd2
- 2.Qf6#
- 1...Sc3
- 2.Qf6#
- 1...Sg3
- 2.Qf6#
- 1...Sc5
- 2.Qf6#
- 1...Sg5
- 2.Qf6#
- 1...Sd6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sg4
- 2.Sxf7#
- 1...Sf5
- 2.Sxf7#
- 1...Sg8
- 2.Sxf7#
- 1...f5
- 2.Rh7#
- 1...f6
- 2.Rh7#
- 1...Sf2!
- 1...fxg6
- 1.Qh1?
- threat
- 2.Sxf7#
- 2.Qxh6#
- 1...fxg6
- 2.Sxg6#
- 2.Qxh6#
- 1...Sd6
- 2.Qxh6#
- 1...Sf6
- 2.Sxf7#
- 1...f5
- 2.Sf7#
- 2.Rh7#
- 2.Qxh6#
- 1...f6
- 2.Sf7#
- 2.Rh7#
- 2.Qxh6#
- 1...Sg5!
- threat
- 1.Qg5?
- threat
- 2.Qxh6#
- 1...Sf6
- 2.Qxf6#
- 1...Sg4
- 2.Sxf7#
- 1...Sf5
- 2.Sxf7#
- 1...Sg8
- 2.Sxf7#
- 1...Sxg5!
- threat
- 1.Qf2?
- Keys
- 1.Qb1!
- 1...fxg6
- 2.Sxg6#
- 1...Sd2
- 2.g7#
- 1...Sf2
- 2.g7#
- 1...Sc3
- 2.g7#
- 1...Sg3
- 2.g7#
- 1...Sc5
- 2.g7#
- 1...Sg5
- 2.g7#
- 1...Sd6
- 2.g7#
- 1...Sf6
- 2.g7#
- 1...Sg4
- 2.Sxf7#
- 1...Sf5
- 2.Sxf7#
- 1...Sg8
- 2.Sxf7#
- 1...f5
- 2.Rh7#
- 1...f6
- 2.Rh7#
- 1...fxg6
- 1.Qb1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::S(B),XP(c)
- P(c);XP(C)::S(B),XP(c)
- P(c);OGATE::R1(D)
- Tries
- Try
- Q(A);
- Vars
- P(c);XP(C)::S(B),XP(c)
- S(a);N_GUARD::QAB(A)
- S(a);N_GUARD::QAB(A),XS(a)
- S(b);N_GUARD::S(B),XP(c)
- P(c);OGATE::R1(D)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);P_PINS(b)
- Threat
- DUALS(2)
- Vars
- S(a);::QAR2(A),XS(b)
- S(a);::S(B),XP(c)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- QAB(A)+S(B),DCHECK,XP(c)
- Vars
- P(c);XP(C)::QAB(A)+S(B),DCHECK,XP(c)
- P(c);OGATE::R1(D)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- P(c);XP(C)::S(B),XP(c)
- S(a);N_GUARD::QAB(A)
- S(a);N_GUARD::QAB(A),XS(a)
- S(b);N_GUARD::S(B),XP(c)
- P(c);OGATE::R1(D)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- P(c);XP(C)::S(B),XP(c)
- S(a);N_GUARD::QAB(A)
- S(a);N_GUARD::QAB(A),XS(a)
- S(b);N_GUARD::S(B),XP(c)
- P(c);OGATE::R1(D)
- Refutation
- S(a);
- Try
- Q(A);P_PINS(b)
- Threat
- DUALS(2)
- Vars
- S(a);::QAR2(A),XS(b)
- S(a);::S(B),XP(c)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- QAR2(A),XS(b)
- Vars
- S(a);N_GUARD::QAB(A),XS(a)
- S(b);N_GUARD::S(B),XP(c)
- Refutation
- S(a);XQ(A)
- Try
- Actual
- Q(A);
- Vars
- P(c);XP(C)::S(B),XP(c)
- S(a);::P(C)
- S(b);N_GUARD::S(B),XP(c)
- P(c);OGATE::R1(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).