MESON Chess Problem Database
Problem Display
PID: 145115 (7r/1Pk1P3/P1N5/2P1N1P1/B7/4p2p/r5pB/3n2K1 w - - 0 1)
Stevenson, Edward
Source?, 0000
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Rh4
- 2.b8Q#
- 2.e8S#
- 1...Rh5
- 2.b8Q#
- 2.e8S#
- 1...Rh6
- 2.b8Q#
- 2.e8S#
- 1...Rh7
- 2.b8Q#
- 2.e8S#
- 1...Rd8
- 2.exd8Q#
- 2.exd8B#
- 1...Rh4
- Tries
- 1.Sb4?
- threat
- 2.Sed3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Kb8
- 2.Sec6#
- 1...Rd2
- 2.Sed3#
- 1...Rf2
- 2.Sf3#
- 1...Rh4
- 2.Sg4#
- 1...Rh6
- 2.Sg6#
- 1...Rd8
- 2.Sd7#
- 1...Rf8
- 2.Sf7#
- 1...Rxa4!
- threat
- 1.Sd4?
- threat
- 2.Sd3#
- 2.Sef3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Kb8
- 2.Sec6#
- 1...Rf2
- 2.Sef3#
- 1...Rh4
- 2.Sg4#
- 1...Rh6
- 2.Sg6#
- 1...Rd8
- 2.Sd7#
- 1...Rf8
- 2.Sf7#
- 1...Rxa4!
- threat
- 1.Sa5?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sec4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Kb8
- 2.Sec6#
- 1...Rd2
- 2.Sd3#
- 1...Rf2
- 2.Sf3#
- 1...Rh4
- 2.Sg4#
- 1...Rh6
- 2.Sg6#
- 1...Rd8
- 2.Sd7#
- 1...Rf8
- 2.Sf7#
- 1...Rxa4!
- threat
- 1.Sa7?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Kb8
- 2.Sec6#
- 1...Rd2
- 2.Sd3#
- 1...Rf2
- 2.Sf3#
- 1...Rh4
- 2.Sg4#
- 1...Rh6
- 2.Sg6#
- 1...Rd8
- 2.Sd7#
- 1...Rf8
- 2.Sf7#
- 1...Rxa4!
- threat
- 1.Sd8?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sef7#
- 1...Kb8
- 2.Sec6#
- 1...Rxd8
- 2.Sd7#
- 1...Rd2
- 2.Sd3#
- 1...Rf2
- 2.Sf3#
- 1...Rh4
- 2.Sg4#
- 1...Rh6
- 2.Sg6#
- 1...Rf8
- 2.Sef7#
- 1...Rxa4!
- threat
- 1.e8Q?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Rxa4
- 2.Sc4#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Ra1
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Rb2
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 1...Rc2
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Rd2
- 2.Sd3#
- 2.b8Q#
- 2.b8B#
- 1...Re2
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Rf2
- 2.Sf3#
- 2.Qd7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Ra3
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Rh4
- 2.Sg4#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.Qb8#
- 2.Qc8#
- 2.Qd8#
- 2.b8Q#
- 2.b8B#
- 1...Rh5
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.Qb8#
- 2.Qc8#
- 2.Qd8#
- 2.b8Q#
- 2.b8B#
- 1...Rh6
- 2.Sg6#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.Qb8#
- 2.Qc8#
- 2.Qd8#
- 2.b8Q#
- 2.b8B#
- 1...Rh7
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qb8#
- 2.Qc8#
- 2.Qd8#
- 2.b8Q#
- 2.b8B#
- 1...Rf8
- 2.Sf7#
- 2.Qd7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Rg8
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Sb2
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Sf2
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Sc3
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...e2
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qe7#
- 2.b8Q#
- 2.b8B#
- 1...Rxe8!
- threat
- 1.e8B?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.b8Q#
- 1...Rxa4
- 2.Sc4#
- 2.b8Q#
- 1...Rb2
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Rd2
- 2.Sd3#
- 2.b8Q#
- 1...Rf2
- 2.Sf3#
- 2.b8Q#
- 1...Rh4
- 2.Sg4#
- 2.b8Q#
- 1...Rh6
- 2.Sg6#
- 2.b8Q#
- 1...Rf8
- 2.Sf7#
- 2.b8Q#
- 1...Rxe8!
- threat
- 1.e8R?
- threat
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Rxa4
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Ra1
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Rb2
- 2.Re7#
- 1...Rc2
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Rd2
- 2.b8Q#
- 2.b8B#
- 1...Re2
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Rf2
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Ra3
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Rh4
- 2.Re7#
- 2.Rc8#
- 2.b8Q#
- 2.b8B#
- 1...Rh5
- 2.Re7#
- 2.Rc8#
- 2.b8Q#
- 2.b8B#
- 1...Rh6
- 2.Re7#
- 2.Rc8#
- 2.b8Q#
- 2.b8B#
- 1...Rh7
- 2.Rc8#
- 2.b8Q#
- 2.b8B#
- 1...Rf8
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Rg8
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Sb2
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Sf2
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Sc3
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...e2
- 2.Re7#
- 2.b8Q#
- 2.b8B#
- 1...Rxe8!
- threat
- 1.Sb4?
- Keys
- 1.Sb8!
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sec6#
- 2.Sg6#
- 2.Sed7#
- 2.Sf7#
- 1...Kxb8
- 2.Sc6#
- 1...Rxa4
- 2.Sc4#
- 1...Rxb8
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Rd2
- 2.Sd3#
- 1...Rf2
- 2.Sf3#
- 1...Rh4
- 2.Sg4#
- 1...Rh6
- 2.Sg6#
- 1...Rd8
- 2.Sed7#
- 1...Rf8
- 2.Sf7#
- threat
- 1.Sb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- R(g);OGATE::PXR(g)=Q
- Tries
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- K(f);S_FLIGHT::B(B)+S(E),DCHECK
- R(b);::B(B)+S(E)
- R(g);::B(B)+S(E)
- Refutation
- R(b);XB(C)
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- K(f);S_FLIGHT::B(B)+S(E),DCHECK
- R(b);::B(B)+S(E)
- R(g);::B(B)+S(E)
- Refutation
- R(b);XB(C)
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- K(f);S_FLIGHT::B(B)+S(E),DCHECK
- R(b);::B(B)+S(E)
- R(g);::B(B)+S(E)
- Refutation
- R(b);XB(C)
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- K(f);S_FLIGHT::B(B)+S(E),DCHECK
- R(b);::B(B)+S(E)
- R(g);::B(B)+S(E)
- Refutation
- R(b);XB(C)
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- K(f);S_FLIGHT::B(B)+S(E),DCHECK
- R(g);XS(H)::B(B)+S(E)
- R(b);::B(B)+S(E)
- R(g);::B(B)+S(E)
- Refutation
- R(b);XB(C)
- Try
- P(J);
- Threat
- DUALS(12)
- Refutation
- R(g);XQ(J)
- Try
- P(J);
- Threat
- DUALS(8)
- Refutation
- R(g);XB(J)
- Try
- P(J);
- Threat
- DUALS(3)
- Vars
- R(b);::R(J)
- R(b);::P=Q
- Refutation
- R(g);XR(J)
- Try
- Actual
- S(H);
- Threat
- DUALS(8)
- Vars
- K(f);S_FLIGHT,XS(H)::B(B)+S(E),DCHECK
- R(b);XB(C)::B(B)+S(E)
- R(b);::B(B)+S(E)
- R(g);::B(B)+S(E)
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).