MESON Chess Problem Database
Problem Display
PID: 29934 (8/pP3Q2/Rn1N1p2/2B1k1P1/1R3pqN/4p1rB/5n2/Kb6 w - - 0 1)
Prete, Rodolfo
1st Prize, Sinfonie Scacchistiche, 1976
#2
10 + 10
| 14744 | Nuova Antologia dei Problemisti Italiani | 1992 |
| 3335 | Cyclone | 2000 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Qe6#
- 1...Qe2
- 2.Qe6#
- 1...Qf3
- 2.Qe6#
- 1...Qh5
- 2.Qe6#
- 1...Qe6
- 2.Qxe6#
- 1...Qxh4
- 2.Qe6#
- 1...Qxg5
- 2.Qe6#
- 1...Ba2
- 2.Sg6#
- 1...Bg6
- 2.Sxg6#
- 1...Sd3
- 2.Sg6#
- 2.Re4#
- 1...Se4
- 2.Sg6#
- 1...Sa4
- 2.Bd4#
- 1...Sd5
- 2.Bd4#
- 1...Sd7
- 2.Bd4#
- 1...Sa8
- 2.Bd4#
- 1...Sc8
- 2.Bd4#
- 1...f5
- 2.Sg6#
- 1...Qd1
- Tries
- 1.Sf3+?
- 1...Qxf3
- 2.Qe6#
- 1...Rxf3!
- 1...Qxf3
- 1.Rxb1?
- threat
- 2.Sg6#
- 1...Qxh4
- 2.Qe6#
- 1...Qxg5
- 2.Qe6#
- 1...Qe6
- 2.Qxe6#
- 1...Qh5
- 2.Qe6#
- 1...Qf5!
- threat
- 1.Re4+?
- 1...Sxe4
- 2.Sg6#
- 1...Bxe4!
- 1...Sxe4
- 1.Qd5+?
- 1...Sxd5
- 2.Sf7#
- 1...Kxd5!
- 1...Sxd5
- 1.Qe8+?
- 1...Qe6
- 2.Qxe6#
- 1...Kd5!
- 1...Qe6
- 1.Qe7+?
- 1...Qe6
- 2.Qxe6#
- 1...Kd5!
- 1...Qe6
- 1.b8Q?
- threat
- 2.Se4#
- 2.Sb5#
- 2.Sdf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 2.Bd4#
- 1...Qe6
- 2.Qxe6#
- 1...Qd7
- 2.Bd4#
- 1...Qd1
- 2.Qe6#
- 2.Qbe8#
- 1...Qf5
- 2.Se4#
- 2.Sb5#
- 2.Sdxf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 2.Bd4#
- 1...Qc8
- 2.Sxc8#
- 2.Bd4#
- 1...Be4
- 2.Sc4#
- 2.Sxe4#
- 2.Sb5#
- 2.Sdf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 2.Bd4#
- 1...Bf5
- 2.Se4#
- 2.Sb5#
- 2.Sdxf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 2.Bd4#
- 1...Se4
- 2.Sg6#
- 2.Sc4#
- 2.Sxe4#
- 2.Bd4#
- 1...Sd5
- 2.Bd4#
- 1...Sd7
- 2.Bd4#
- 1...Sa8
- 2.Bd4#
- 1...Sc8
- 2.Sxc8#
- 2.Bd4#
- 1...f3
- 2.Se4#
- 2.Sb5#
- 2.Sdf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 1...f5
- 2.Sg6#
- 2.Se4#
- 2.Sb5#
- 2.Sdxf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 2.Bd4#
- 2.Qbe8#
- 2.Qh8#
- 1...Sc4!
- threat
- 1.b8B?
- threat
- 2.Se4#
- 2.Sb5#
- 2.Sdf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 2.Bd4#
- 1...Qe6
- 2.Qxe6#
- 1...Qd7
- 2.Bd4#
- 1...Qd1
- 2.Qe6#
- 1...Qf5
- 2.Se4#
- 2.Sb5#
- 2.Sdxf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 2.Bd4#
- 1...Qc8
- 2.Sxc8#
- 2.Bd4#
- 1...Be4
- 2.Sc4#
- 2.Sxe4#
- 2.Sb5#
- 2.Sdf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 2.Bd4#
- 1...Bf5
- 2.Se4#
- 2.Sb5#
- 2.Sdxf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 2.Bd4#
- 1...Se4
- 2.Sg6#
- 2.Sc4#
- 2.Sxe4#
- 2.Bd4#
- 1...Sd5
- 2.Bd4#
- 1...Sd7
- 2.Bd4#
- 1...Sa8
- 2.Bd4#
- 1...Sc8
- 2.Sxc8#
- 2.Bd4#
- 1...f3
- 2.Se4#
- 2.Sb5#
- 2.Sdf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 1...f5
- 2.Sg6#
- 2.Se4#
- 2.Sb5#
- 2.Sdxf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 2.Bd4#
- 1...Sc4!
- threat
- 1.Sf3+?
- Keys
- 1.Sdf5!
- threat
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Qxh3
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Qxf5
- 2.b8Q#
- 2.b8B#
- 1...Qxh4
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Qxg5
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Rxh3
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Bxf5
- 2.b8Q#
- 2.b8B#
- 1...Sxh3
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...fxg5
- 2.Sg6#
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Sc4
- 2.Qe6#
- 1...Qd1
- 2.Sg6#
- 1...Qe2
- 2.Sg6#
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Qf3
- 2.Sg6#
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Qh5
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Rg1
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Rg2
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Rf3
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Ba2
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Bc2
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Bd3
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Be4
- 2.Bd4#
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Sd1
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Sh1
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Sd3
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...Se4
- 2.Bd4#
- 1...Sa4
- 2.Bd6#
- 2.Qe6#
- 2.b8Q#
- 2.b8B#
- 1...Sd5
- 2.Bd6#
- 2.Re6#
- 2.Qe6#
- 1...Sd7
- 2.Bd6#
- 2.Qe6#
- 1...Sa8
- 2.Bd6#
- 2.Qe6#
- 1...Sc8
- 2.Qe6#
- 1...e2
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- 1...f3
- 2.Bd6#
- 2.b8Q#
- 2.b8B#
- threat
- 1.Sdf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 13
- Sets
- Q(f);N_GUARD::QAR1(J)
- Q(f);N_GUARD::QAR1(J),XQ(f)
- Q(f);N_GUARD,XS(D)::QAR1(J)
- Q(f);N_GUARD,XP(F)::QAR1(J)
- B(a);N_GUARD::S(D)
- B(a);N_GUARD::S(D),XB(a)
- S(b);S_CUTB(a)::S(D)
- S(h);::B(E)
- P(i);S_CUTB(a)::S(D)
- Tries
- Try
- S(D);CHECK
- Vars
- Q(f);XS(D)::QAR1(J)
- Refutation
- R(d);XS(D)
- Try
- R(C);XB(a)
- Threat
- S(D)
- Vars
- Q(f);N_GUARD,XS(D)::QAR1(J)
- Q(f);N_GUARD,XP(F)::QAR1(J)
- Q(f);N_GUARD::QAR1(J),XQ(f)
- Q(f);N_GUARD::QAR1(J)
- Refutation
- Q(f);
- Try
- R(C);CHECK
- Vars
- S(b);XR(C)::S(D)
- Refutation
- B(a);XR(C)
- Try
- Q(J);CHECK
- Vars
- S(h);SBLOCK,XQ(J)::S(H)
- Refutation
- K(g);P-FLIGHT,XQ(J)
- Try
- Q(J);CHECK
- Vars
- Q(f);N_GUARD,P_SPINQ(f)::QAR1(J),XQ(f)
- Refutation
- K(g);P-FLIGHT
- Try
- Q(J);CHECK
- Vars
- Q(f);N_GUARD,P_SPINQ(f)::QAR1(J),XQ(f)
- Refutation
- K(g);P-FLIGHT
- Try
- P(I);
- Threat
- DUALS(7)
- Vars
- Q(f);N_GUARD::QAR1(J),XQ(f)
- Q(f);::B(E)
- S(h);::B(E)
- Refutation
- S(h);
- Try
- P(I);
- Threat
- DUALS(7)
- Vars
- Q(f);N_GUARD::QAR1(J),XQ(f)
- Q(f);::B(E)
- Q(f);N_GUARD::QAR1(J)
- S(h);::B(E)
- Refutation
- S(h);
- Try
- Actual
- S(H);
- Threat
- DUALS(3)
- Vars
- Q(f);XS(H)::P=Q
- B(a);XS(H)::P=Q
- S(h);::QAR1(J)
- Q(f);::S(D)
- S(b);SBLOCK::B(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).