MESON Chess Problem Database
Problem Display
PID: 100922 (8/kP2N3/1Rn5/8/K2P4/8/Q7/5B2 w - - 0 1)
Everts, AWL
Good Companions, 1921
#2
7 + 2
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb4
- 2.b8Q#
- 1...Sxd4
- 2.b8Q#
- 1...Sa5
- 2.b8Q#
- 1...Se5
- 2.b8Q#
- 1...Sxe7
- 2.b8Q#
- 1...Sb8
- 2.Sc8#
- 1...Sd8
- 2.b8Q#
- 1...Sb4
- Tries
- 1.Kb5+?
- 1...Sa5
- 2.Sc6#
- 2.b8Q#
- 1...Kb8!
- 1...Sa5
- 1.Qb1?
- threat
- 2.Sxc6#
- 1...Sxd4
- 2.b8Q#
- 1...Sxe7
- 2.b8Q#
- 1...Sb4
- 2.b8Q#
- 1...Sa5
- 2.b8Q#
- 1...Se5
- 2.b8Q#
- 1...Sb8
- 2.Sc8#
- 1...Sd8
- 2.b8Q#
- 1...Kb8!
- threat
- 1.Qb3?
- threat
- 2.Sxc6#
- 1...Sxd4
- 2.b8Q#
- 1...Sxe7
- 2.b8Q#
- 1...Sb4
- 2.b8Q#
- 1...Sa5
- 2.b8Q#
- 1...Se5
- 2.b8Q#
- 1...Sb8
- 2.Sc8#
- 1...Sd8
- 2.b8Q#
- 1...Kb8!
- threat
- 1.Qe6?
- 1...Kxb6
- 2.b8Q#
- 1...Sxd4
- 2.b8Q#
- 1...Sxe7
- 2.b8Q#
- 1...Sb4
- 2.b8Q#
- 1...Sa5
- 2.b8Q#
- 1...Se5
- 2.b8Q#
- 1...Sb8
- 2.Sc8#
- 1...Sd8
- 2.b8Q#
- 1...Kb8!
- 1...Kxb6
- 1.Qg8?
- 1...Sxd4
- 2.b8Q#
- 1...Sxe7
- 2.b8Q#
- 1...Sd8
- 2.b8Q#
- 1...Sb4
- 2.b8Q#
- 1...Sa5
- 2.b8Q#
- 1...Se5
- 2.b8Q#
- 1...Sb8
- 2.Sc8#
- 1...Kxb6!
- 1...Sxd4
- 1.Qb2?
- threat
- 2.Sxc6#
- 1...Sxd4
- 2.b8Q#
- 1...Sxe7
- 2.b8Q#
- 1...Sb4
- 2.b8Q#
- 1...Sa5
- 2.b8Q#
- 1...Se5
- 2.b8Q#
- 1...Sb8
- 2.Sc8#
- 1...Sd8
- 2.b8Q#
- 1...Kb8!
- threat
- 1.Qh2?
- threat
- 2.Sc8#
- 1...Sxe7
- 2.b8Q#
- 1...Se5
- 2.b8Q#
- 1...Kxb6!
- threat
- 1.b8R?
- threat
- 2.Sxc6#
- 2.Sc8#
- 2.R6b7#
- 1...Sxd4
- 2.Kb4#
- 2.Sc8#
- 2.R6b7#
- 1...Sxe7
- 2.Kb3#
- 2.Kb4#
- 2.Kb5#
- 2.R6b7#
- 1...Sb4
- 2.Kxb4#
- 2.Sc8#
- 2.R6b7#
- 1...Sa5
- 2.Sc8#
- 1...Se5
- 2.Kb3#
- 2.Kb4#
- 2.Kb5#
- 2.Sc8#
- 2.R6b7#
- 1...Sd8
- 2.Kb3#
- 2.Kb4#
- 2.Kb5#
- 2.Sc8#
- 1...Sxb8!
- threat
- 1.Kb5+?
- Keys
- 1.Qf7!
- 1...Kxb6
- 2.Sc8#
- 1...Kb8
- 2.Sxc6#
- 1...Sxd4
- 2.b8Q#
- 1...Sxe7
- 2.b8Q#
- 1...Sb4
- 2.b8Q#
- 1...Sa5
- 2.b8Q#
- 1...Se5
- 2.b8Q#
- 1...Sb8
- 2.Sc8#
- 1...Sd8
- 2.b8Q#
- 1...Kxb6
- 1.Qf7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::P=Q
- S(a);N_GUARD,XP(D)::P=Q
- S(a);N_GUARD,XS(G)::P=Q
- S(a);SBLOCK::S(G)
- Tries
- Try
- K(C);CHECK,S_FLIGHT
- Refutation
- K(b);S_FLIGHT
- Try
- Q(B);
- Threat
- S(G),XS(a)
- Vars
- S(a);N_GUARD,XP(D)::P=Q
- S(a);N_GUARD,XS(G)::P=Q
- S(a);N_GUARD::P=Q
- S(a);SBLOCK::S(G)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(B);
- Threat
- S(G),XS(a)
- Vars
- S(a);N_GUARD,XP(D)::P=Q
- S(a);N_GUARD,XS(G)::P=Q
- S(a);N_GUARD::P=Q
- S(a);SBLOCK::S(G)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(B);
- Vars
- K(b);P_SPINS(a),S_FLIGHT,XR(E)::P=Q
- S(a);N_GUARD,XP(D)::P=Q
- S(a);N_GUARD,XS(G)::P=Q
- S(a);N_GUARD::P=Q
- S(a);SBLOCK::S(G)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(B);
- Vars
- S(a);N_GUARD,XP(D)::P=Q
- S(a);N_GUARD,XS(G)::P=Q
- S(a);N_GUARD::P=Q
- S(a);SBLOCK::S(G)
- Refutation
- K(b);S_FLIGHT,XR(E)
- Try
- Q(B);
- Threat
- S(G),XS(a)
- Vars
- S(a);N_GUARD,XP(D)::P=Q
- S(a);N_GUARD,XS(G)::P=Q
- S(a);N_GUARD::P=Q
- S(a);SBLOCK::S(G)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(B);
- Threat
- S(G)
- Vars
- S(a);N_GUARD,XS(G)::P=Q
- S(a);N_GUARD::P=Q
- Refutation
- K(b);S_FLIGHT,XR(E)
- Try
- P(F);
- Threat
- DUALS(3)
- Vars
- S(a);::S(G)
- Refutation
- S(a);XR(F)
- Try
- Actual
- Q(B);
- Vars
- K(b);S_FLIGHT,XR(E)::S(G)
- K(b);S_FLIGHT::S(G),XS(a)
- S(a);N_GUARD,XP(D)::P=Q
- S(a);N_GUARD,XS(G)::P=Q
- S(a);N_GUARD::P=Q
- S(a);SBLOCK::S(G)
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).