MESON Chess Problem Database
Problem Display
PID: 222475 (1B2k3/Rn2PN2/p2P3P/p1pn4/P1B3N1/8/8/4KQ2 w - - 0 1)
Whitner, HK
Philadelphia Times, 1883
#2
11 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sc3
- 2.Sf6#
- 1...Se3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sxd6
- 2.Sxd6#
- 1...Sd8
- 2.exd8Q#
- 2.exd8R#
- 1...Sc3
- Tries
- 1.Sf6+?
- 1...Kxf7
- 2.e8Q#
- 1...Sxf6!
- 1...Kxf7
- 1.Sfe5?
- threat
- 2.Qf7#
- 2.Qf8#
- 1...Sxd6
- 2.Qf8#
- 1...Sf4
- 2.Sf6#
- 2.Bf7#
- 1...Sf6
- 2.Sxf6#
- 2.Bf7#
- 1...Sd8
- 2.Qf8#
- 1...Sxe7!
- threat
- 1.Bxd5?
- threat
- 2.Sf6#
- 2.Bc6#
- 1...Sd8
- 2.Sf6#
- 2.exd8Q#
- 2.exd8R#
- 1...Kd7!
- threat
- 1.Rxb7?
- 1...Sc7
- 2.Sf6#
- 1...Sc3
- 2.Sf6#
- 1...Se3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sxe7!
- 1...Sc7
- 1.Qf5?
- 1...Sxd6
- 2.Sxd6#
- 1...Sc3
- 2.Sf6#
- 1...Se3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sd8
- 2.exd8Q#
- 2.exd8R#
- 1...Sxe7!
- 1...Sxd6
- 1.Sf6+?
- Keys
- 1.Qe2!
- 1...Kd7
- 2.e8Q#
- 1...Kxf7
- 2.e8Q#
- 1...Sxe7
- 2.Qxe7#
- 1...Sxd6
- 2.Sxd6#
- 1...Sc3
- 2.Sf6#
- 1...Se3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sd8
- 2.exd8Q#
- 2.exd8R#
- 1...Kd7
- 1.Qe2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- S(e);XP(F)::S(J),XS(e)
- S(e);OGATE::PXS(e)=Q
- Tries
- Try
- S(E);CHECK
- Vars
- K(f);OGATE,P_SPINS(c),S_FLIGHT,XS(J)::P=Q
- Refutation
- S(c);XS(E)
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- S(e);XP(F)::QAR1(B)
- S(e);::QAR1(B)
- Refutation
- S(c);XP(I)
- Try
- B(D);XS(c)
- Threat
- DUALS(2)
- Refutation
- K(f);P_SPINS(e),S_FLIGHT
- Try
- R(H);XS(e)
- Vars
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- Refutation
- S(c);XP(I)
- Try
- Q(B);
- Vars
- S(e);XP(F)::S(J),XS(e)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- S(e);OGATE::PXS(e)=Q
- Refutation
- S(c);XP(I)
- Try
- Actual
- Q(B);
- Vars
- K(f);OGATE,P_SPINS(e),S_FLIGHT::P=Q
- K(f);OGATE,P_SPINS(c),S_FLIGHT,XS(J)::P=Q
- S(c);OGATE,P_SPINS(c),XP(I)::QAR1(B),XS(c)
- S(e);XP(F)::S(J),XS(e)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- S(e);OGATE::PXS(e)=Q
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).