MESON Chess Problem Database
Problem Display
PID: 2661 (5R2/2B2B2/7p/4bk1b/K1N1N1Rp/8/2n5/4n1Q1 w - - 0 1)
Santiago, Joao Baptista
Source?, 0000
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Rf4#
- 1...Bb2
- 2.Rf4#
- 1...Bc3
- 2.Rf4#
- 1...Bd4
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Bf6
- 2.Sed6#
- 2.Rf4#
- 1...Bg7
- 2.Rf4#
- 1...Bh8
- 2.Rf4#
- 1...Sa1
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sb4
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...Ba1
- Tries
- 1.Sed6+?
- 1...Kf6
- 2.Bd8#
- 1...Bxd6!
- 1...Kf6
- 1.Bd5+?
- 1...Bf6
- 2.Sed6#
- 2.Rf4#
- 2.Rxf6#
- 1...Bf7!
- 1...Bf6
- 1.Bxh5+?
- 1...Bf6
- 2.Rxf6#
- 1...Ke6!
- 1...Bf6
- 1.Be8+?
- 1...Bf6
- 2.Bd7#
- 2.Rxf6#
- 1...Bf7
- 2.Bd7#
- 1...Ke6!
- 1...Bf6
- 1.Bg8+?
- 1...Bf6
- 2.Sed6#
- 2.Rf4#
- 2.Rxf6#
- 1...Bf7!
- 1...Bf6
- 1.Rf4+?
- 1...Kxf4
- 2.Bg6#
- 1...Bxf4!
- 1...Kxf4
- 1.Re8?
- threat
- 2.Be6#
- 2.Rxe5#
- 1...Bxc7
- 2.Be6#
- 1...Bxf7
- 2.Rxe5#
- 1...Bg3
- 2.Be6#
- 1...Sg2
- 2.Be6#
- 1...Ba1
- 2.Scd6#
- 2.Be6#
- 2.Rf4#
- 1...Bb2
- 2.Scd6#
- 2.Be6#
- 2.Rf4#
- 1...Bh2
- 2.Be6#
- 1...Bc3
- 2.Scd6#
- 2.Be6#
- 2.Rf4#
- 1...Bd4
- 2.Scd6#
- 2.Be6#
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Bd6
- 2.Scxd6#
- 2.Be6#
- 1...Bf6
- 2.Scd6#
- 2.Sed6#
- 2.Be6#
- 2.Rf4#
- 1...Bg7
- 2.Scd6#
- 2.Be6#
- 2.Rf4#
- 1...Bh8
- 2.Scd6#
- 2.Be6#
- 2.Rf4#
- 1...Sd3
- 2.Be6#
- 1...Sf3
- 2.Be6#
- 1...Sd4
- 2.Se3#
- 2.Rxe5#
- 1...Bxg4!
- threat
- 1.Qf2+?
- 1...Kxg4
- 2.Be6#
- 1...Bf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Sf3!
- 1...Kxg4
- 1.Qb6?
- threat
- 2.Be6#
- 2.Qe6#
- 1...Kxg4
- 2.Be6#
- 1...Bxg4
- 2.Bg6#
- 1...Bxf7
- 2.Qg6#
- 1...Bf4
- 2.Rxf4#
- 2.Qe6#
- 1...Sd4
- 2.Se3#
- 2.Be6#
- 1...Bd6!
- threat
- 1.Qf1+?
- 1...Kxg4
- 2.Sxe5#
- 2.Be6#
- 1...Bf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Sf3!
- 1...Kxg4
- 1.Sed6+?
- Keys
- 1.Qd4!
- threat
- 2.Qd7#
- 1...Kxg4
- 2.Be6#
- 1...Bxd4
- 2.Rf4#
- 1...Bxg4
- 2.Qxe5#
- 1...Sxd4
- 2.Se3#
- 1...Bf4
- 2.Rxf4#
- 1...Bd6
- 2.Sexd6#
- threat
- 1.Qd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- B(d);N_GUARD::R1(E)
- B(d);N_GUARD::R1(E),XB(d)
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- Tries
- Try
- S(D);CHECK
- Vars
- K(e);P-FLIGHT::B(F)
- Refutation
- B(d);XS(D)
- Try
- B(G);CHECK
- Refutation
- B(f);P_SPINB(f)
- Try
- B(G);CHECK,XB(f)
- Vars
- B(d);N_GUARD,P_SPINB(d)::R1(H),XB(d)
- Refutation
- K(e);S_FLIGHT
- Try
- B(G);CHECK
- Vars
- B(f);P_SPINB(f)::B(G)
- Refutation
- K(e);S_FLIGHT
- Try
- B(G);CHECK
- Refutation
- B(f);P_SPINB(f)
- Try
- R(E);CHECK
- Vars
- K(e);P-FLIGHT,P_SPINB(d),XR(E)::R(H)+B(G)
- Refutation
- B(d);XR(E)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- B(d);XB(F)::B(G)
- B(f);XB(G)::R1(H),XB(d)
- B(d);::B(G)
- S(a);::B(G)
- B(d);N_GUARD::R1(E),XB(d)
- Refutation
- B(f);XR(E)
- Try
- Q(A);CHECK
- Vars
- K(e);S_FLIGHT,XR(E)::B(G)
- Refutation
- S(a);P_SPINS(a)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(e);S_FLIGHT,XR(E)::B(G)
- B(f);SBLOCK,XR(E)::R(H)+B(G),DCHECK
- B(f);N_GUARD,P_SPINB(f),XB(G)::QAB1(A)
- Refutation
- B(d);
- Try
- Q(A);CHECK
- Refutation
- S(a);P_SPINS(a)
- Try
- Actual
- Q(A);
- Threat
- QAB(A)
- Vars
- K(e);S_FLIGHT,XR(E)::B(G)
- B(d);N_GUARD,XQ(A)::R1(E)
- B(f);SBLOCK,XR(E)::QAR1(A),XB(d)
- S(b);N_GUARD,XQ(A)::S(C)
- B(d);N_GUARD::R1(E),XB(d)
- B(d);N_GUARD::S(D),XB(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).