MESON Chess Problem Database
Problem Display
PID: 138436 (6r1/PK2p3/3kPN1n/R2PR3/1pPB1N2/r7/2q4Q/7b w - - 0 1)
Tinebra, Vincenzo
British Chess Magazine, 1979
#2
11 + 8
| 14744 | Nuova Antologia dei Problemisti Italiani | 1992 |
| 1101 | BCSC Final | 2015-2016 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.c5#
- 1...Qd1
- 2.c5#
- 1...Qb3
- 2.c5#
- 1...Qd3
- 2.c5#
- 1...Qa4
- 2.c5#
- 1...Qe4
- 2.c5#
- 1...Qf5
- 2.c5#
- 1...Qg6
- 2.c5#
- 1...Qh7
- 2.c5#
- 1...Qa2
- 2.c5#
- 1...Qb2
- 2.c5#
- 1...Qd2
- 2.c5#
- 1...Qe2
- 2.c5#
- 1...Qf2
- 2.c5#
- 1...Qg2
- 2.c5#
- 1...Qxh2
- 2.c5#
- 1...Rb3
- 2.Ra6#
- 1...Rc3
- 2.Ra6#
- 1...Rd3
- 2.Ra6#
- 1...Re3
- 2.Ra6#
- 1...Rf3
- 2.Ra6#
- 1...Rag3
- 2.Ra6#
- 1...Rh3
- 2.Ra6#
- 1...Rg1
- 2.Se8#
- 1...Rg2
- 2.Se8#
- 1...Rgg3
- 2.Se8#
- 1...Rg4
- 2.Se8#
- 1...Rg5
- 2.Se8#
- 1...Rg6
- 2.Se8#
- 1...Rg7
- 2.Se8#
- 1...Rb8+
- 2.axb8Q#
- 2.axb8B#
- 1...Re8
- 2.Sxe8#
- 1...Bxd5+
- 2.Raxd5#
- 2.Rexd5#
- 1...Qb1
- Tries
- 1.Se2?
- threat
- 2.Bc5#
- 1...Rb8+
- 2.axb8Q#
- 2.axb8B#
- 1...Bxd5+
- 2.Raxd5#
- 1...Rxa5
- 2.Rg5#
- 1...Rag3
- 2.Ra6#
- 1...Rgg3
- 2.Se8#
- 1...Rc8
- 2.Re3#
- 1...Qxc4!
- threat
- 1.Sd3?
- threat
- 2.Bc5#
- 1...Rb8+
- 2.axb8Q#
- 2.axb8B#
- 1...Bxd5+
- 2.Raxd5#
- 1...Qxc4
- 2.Rg5#
- 1...Qf2
- 2.c5#
- 1...Rc8
- 2.Re2#
- 1...Rxa5!
- threat
- 1.Sg6?
- threat
- 2.Bc5#
- 1...Rb8+
- 2.axb8Q#
- 2.axb8B#
- 1...Bxd5+
- 2.Raxd5#
- 1...Qxc4
- 2.Re3#
- 1...Rxa5
- 2.Re2#
- 1...Qf2
- 2.c5#
- 1...Rc8!
- threat
- 1.Se4+?
- 1...Qxe4
- 2.c5#
- 1...Bxe4!
- 1...Qxe4
- 1.Re2?
- threat
- 2.Bc5#
- 2.Be5#
- 1...Rb8+
- 2.axb8Q#
- 2.axb8B#
- 1...Bxd5+
- 2.Rxd5#
- 1...Qxe2
- 2.c5#
- 1...Qxc4
- 2.Be5#
- 1...Rxa5
- 2.Sg6#
- 1...exf6
- 2.Bc5#
- 1...Qe4
- 2.c5#
- 1...Qf5
- 2.Bc5#
- 2.c5#
- 1...Qb2
- 2.Bc5#
- 2.c5#
- 1...Qc3
- 2.Bc5#
- 1...Re3
- 2.Ra6#
- 1...Rg5
- 2.Se8#
- 2.Bc5#
- 1...Rc8
- 2.Sd3#
- 2.Be5#
- 1...Sg4
- 2.Bc5#
- 1...Sf7
- 2.Bc5#
- 1...Be4!
- threat
- 1.Rg5?
- threat
- 2.Bc5#
- 2.Be5#
- 1...Rb8+
- 2.axb8Q#
- 2.axb8B#
- 1...Bxd5+
- 2.Raxd5#
- 2.Rgxd5#
- 1...Qxc4
- 2.Sd3#
- 2.Be5#
- 1...Rxa5
- 2.Se2#
- 2.Sg2#
- 1...Rxg5
- 2.Se8#
- 1...exf6
- 2.Bc5#
- 1...Qe4
- 2.Bc5#
- 2.c5#
- 1...Qf5
- 2.c5#
- 1...Qb2
- 2.Bc5#
- 2.c5#
- 1...Qe2
- 2.Bc5#
- 2.c5#
- 1...Qf2
- 2.Be5#
- 2.c5#
- 1...Qc3
- 2.Sd3#
- 2.Bc5#
- 1...Re3
- 2.Bc5#
- 2.Ra6#
- 1...Rc8
- 2.Be5#
- 1...Sg4
- 2.Bc5#
- 1...Sf7
- 2.Bc5#
- 1...Sf5!
- threat
- 1.Se2?
- Keys
- 1.Sg2!
- threat
- 2.Bc5#
- 1...Rb8+
- 2.axb8Q#
- 2.axb8B#
- 1...Qxc4
- 2.Se4#
- 1...Rxa5
- 2.Rg5#
- 1...Qf2
- 2.Se4#
- 2.c5#
- 1...Rag3
- 2.Ra6#
- 1...Rgg3
- 2.Se8#
- 1...Rc8
- 2.Re3#
- threat
- 1.Sg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 29
- Sets
- Q(b);N_GUARD::P(B)
- Q(b);N_GUARD,XQ(A)::P(B)
- R(c);N_GUARD::R(E)
- R(c);N_GUARD,N_PINP(F)::R(E)
- R(h);N_GUARD::S(I)
- R(h);N_GUARD,N_PINP(F)::S(I)
- R(h);CHECK,OGATE::PXR(h)=Q
- R(h);N_GUARD::S(I),XR(h)
- Tries
- Try
- S(D);
- Threat
- B(C)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- B(a);CHECK,OGATE,XP(F)::R1(E),XB(a)
- R(c);N_GUARD,XR(E)::QAB(A)+R(G)
- R(c);N_GUARD::R(E)
- R(h);N_GUARD::S(I)
- R(h);N_GUARD::QAB(A)+R(G)
- Refutation
- Q(b);XP(B)
- Try
- S(D);
- Threat
- B(C)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- B(a);CHECK,OGATE,XP(F)::R1(E),XB(a)
- Q(b);N_GUARD,XP(B)::QAB(A)+R(G)
- Q(b);N_GUARD::P(B)
- R(h);N_GUARD::QAB(A)+R(G)
- Refutation
- R(c);XR(E)
- Try
- S(D);
- Threat
- B(C)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- B(a);CHECK,OGATE,XP(F)::R1(E),XB(a)
- Q(b);N_GUARD,XP(B)::QAB(A)+R(G)
- R(c);N_GUARD,XR(E)::QAB(A)+R(G)
- Q(b);N_GUARD::P(B)
- Refutation
- R(h);
- Try
- S(I);CHECK,N_SPINP(F)
- Vars
- Q(b);P_PINP(F),XS(I)::P(B)
- Refutation
- B(a);P_PINP(F),XS(I)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- B(a);CHECK,OGATE,XP(F)::R1(E),XB(a)
- Q(b);N_GUARD,XR(G)::P(B)
- Q(b);XP(B)::B(C)
- R(c);N_GUARD,XR(E)::QAB(A)+S(D)
- P(g);XS(I)::B(C)
- Q(b);N_GUARD::P(B)
- Q(b);::B(C)
- R(c);N_GUARD::R(E)
- S(f);::B(C)
- Refutation
- B(a);
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- R(h);N_GUARD,XR(G)::S(I)
- P(g);XS(I)::B(C)
- Q(b);N_GUARD::P(B)
- R(h);::B(C)
- S(f);::B(C)
- Refutation
- S(f);
- Try
- Actual
- S(D);N_SPINP(F)
- Threat
- B(C)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- Q(b);N_GUARD,XP(B)::S(I)
- R(c);N_GUARD,XR(E)::QAB(A)+R(G)
- R(c);N_GUARD::R(E)
- R(h);N_GUARD::S(I)
- R(h);N_GUARD::QAB(A)+R(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).