MESON Chess Problem Database
Problem Display
PID: 175499 (8/2K5/3p4/2pk4/6Q1/2BN4/N1P4p/3n3q w - - 0 1)
McAllister, George W
Philadelphia Times, 1899
#2
6 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sxc3
- 2.Sxc3#
- 1...c4
- 2.Sab4#
- 2.Qf5#
- 1...Sxc3
- Tries
- 1.Sf4+?
- 1...Kc4
- 2.Qe2#
- 1...Ke4!
- 1...Kc4
- 1.Ba1?
- threat
- 2.c4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...c4
- 2.Sab4#
- 2.Qf5#
- 1...Qe4!
- threat
- 1.Be1?
- threat
- 2.c4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...c4
- 2.Sab4#
- 1...Qe4!
- threat
- 1.Bb2?
- threat
- 2.c4#
- 1...Sxb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...c4
- 2.Sab4#
- 2.Qf5#
- 1...Qe4!
- threat
- 1.Bd2?
- threat
- 2.c4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...c4
- 2.Sab4#
- 1...Qe4!
- threat
- 1.Ba5?
- threat
- 2.c4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...c4
- 2.Sab4#
- 1...Qe4!
- threat
- 1.Bf6?
- threat
- 2.c4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...c4
- 2.Sab4#
- 2.Qf5#
- 1...Qe4!
- threat
- 1.Bg7?
- threat
- 2.c4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...c4
- 2.Sab4#
- 2.Qf5#
- 1...Qe4!
- threat
- 1.Bh8?
- threat
- 2.c4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...c4
- 2.Sab4#
- 2.Qf5#
- 1...Qe4!
- threat
- 1.Sf4+?
- Keys
- 1.Be5!
- threat
- 2.c4#
- 1...Qe4
- 2.Qg8#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...c4
- 2.Sab4#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(a);XB(C)::S(A),XS(a)
- Tries
- Try
- S(D);CHECK
- Vars
- K(e);S_FLIGHT::QAB(E)
- Refutation
- K(e);S_FLIGHT
- Try
- B(C);
- Threat
- P(B)
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- Q(b);
- Try
- B(C);
- Threat
- P(B)
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(A)
- Refutation
- Q(b);
- Try
- B(C);
- Threat
- P(B)
- Vars
- S(a);N_GUARD,XB(C)::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(a);N_GUARD::S(A)
- Refutation
- Q(b);
- Try
- B(C);
- Threat
- P(B)
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(A)
- Refutation
- Q(b);
- Try
- B(C);
- Threat
- P(B)
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(A)
- Refutation
- Q(b);
- Try
- B(C);
- Threat
- P(B)
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- Q(b);
- Try
- B(C);
- Threat
- P(B)
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- Q(b);
- Try
- B(C);
- Threat
- P(B)
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- Q(b);
- Try
- Actual
- B(C);
- Threat
- P(B)
- Vars
- Q(b);SBLOCK::QAB(E)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(d);N_GUARD::S(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).