MESON Chess Problem Database
Problem Display
PID: 272255 (2b5/b1P1p2K/2B1N3/1p1PB2Q/1Rn1k1Nn/2P4R/1p2P3/1q1r4 w - - 0 1)
Simoni, Francesco
Comm., L'Italia Scacchistica, 1991
#2
12 + 10
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.d6#
- 1...Re1
- 2.d6#
- 1...Rf1
- 2.d6#
- 1...Rg1
- 2.d6#
- 1...Rh1
- 2.d6#
- 1...Rd4
- 2.Sf2#
- 1...Bf2
- 2.Sxf2#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.d6#
- 1...Bc5
- 2.Sxc5#
- 1...Bb8
- 2.Sf2#
- 2.Sc5#
- 2.Re3#
- 1...Sg2
- 2.Qg6#
- 1...Sf3
- 2.Qg6#
- 1...Sf5
- 2.Sg5#
- 1...Sg6
- 2.Qxg6#
- 1...Rc1
- Tries
- 1.Sd4?
- threat
- 2.Sf2#
- 2.d6#
- 1...Rxd4
- 2.Sf2#
- 1...Bxd4
- 2.d6#
- 1...Bxg4
- 2.d6#
- 1...Sxe5
- 2.Qxe5#
- 1...Rf1
- 2.d6#
- 1...Be6
- 2.Sf2#
- 2.dxe6#
- 1...Bb7
- 2.Sf2#
- 1...Bd7
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 2.Rxe3#
- 1...Sa5
- 2.Sf2#
- 2.Re3#
- 1...Sb6
- 2.Sf2#
- 2.Re3#
- 1...Sd6
- 2.Sf2#
- 2.Re3#
- 1...Sf3
- 2.d6#
- 1...Sf5
- 2.d6#
- 1...Bf5+!
- threat
- 1.Bg3?
- threat
- 2.Qe5#
- 1...Bd4
- 2.d6#
- 1...Sf3
- 2.Qg6#
- 1...Sf5
- 2.Sg5#
- 1...Sg6
- 2.Qxg6#
- 1...Rd4!
- threat
- 1.Bd4?
- threat
- 2.Sf2#
- 2.d6#
- 1...Rxd4
- 2.Sf2#
- 1...Bxd4
- 2.d6#
- 1...Rf1
- 2.d6#
- 1...Bb7
- 2.Sf2#
- 1...Bd7
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 2.Rxe3#
- 2.Qe5#
- 1...Sa5
- 2.Sf2#
- 2.Re3#
- 2.Qe5#
- 1...Se5
- 2.Sf2#
- 2.Re3#
- 2.Qxe5#
- 1...Sb6
- 2.Sf2#
- 2.Re3#
- 2.Qe5#
- 1...Sd6
- 2.Sf2#
- 2.Re3#
- 2.Qe5#
- 1...Bxe6!
- threat
- 1.Bf4?
- threat
- 2.Qe5#
- 1...Rd4
- 2.Sf2#
- 1...Bd4
- 2.d6#
- 1...Sf3
- 2.Qg6#
- 1...Sg6
- 2.Qxg6#
- 1...Sf5!
- threat
- 1.Bd6?
- threat
- 2.Qe5#
- 1...exd6
- 2.Sf6#
- 1...Rd4
- 2.Sf2#
- 1...Sf3
- 2.Qg6#
- 1...Sf5
- 2.Sg5#
- 1...Sg6
- 2.Qxg6#
- 1...Bd4!
- threat
- 1.Bf6?
- threat
- 2.Qe5#
- 1...exf6
- 2.Sxf6#
- 1...Rd4
- 2.Sf2#
- 1...Bd4
- 2.d6#
- 1...Sf3
- 2.Qg6#
- 1...Sg6
- 2.Qxg6#
- 1...Sf5!
- threat
- 1.Bg7?
- threat
- 2.Qe5#
- 1...Rd4
- 2.Sf2#
- 1...Bd4
- 2.d6#
- 1...Sf3
- 2.Qg6#
- 1...Sg6
- 2.Qxg6#
- 1...Sf5!
- threat
- 1.Bh8?
- threat
- 2.Qe5#
- 1...Rd4
- 2.Sf2#
- 1...Bd4
- 2.d6#
- 1...Sf3
- 2.Qg6#
- 1...Sg6
- 2.Qxg6#
- 1...Sf5!
- threat
- 1.Rf3?
- threat
- 2.Sg5#
- 2.Rf4#
- 1...Bxe6
- 2.Rf4#
- 1...Sxf3
- 2.Qg6#
- 1...Rf1
- 2.Sg5#
- 2.d6#
- 1...Be3
- 2.Rxe3#
- 1...Sg2
- 2.Sg5#
- 2.Qg6#
- 2.Qf5#
- 1...Sg6
- 2.Sg5#
- 2.Qxg6#
- 2.Qf5#
- 1...Qc1!
- threat
- 1.Rxh4?
- threat
- 2.Qg6#
- 1...Rf1
- 2.d6#
- 1...Bxe6!
- threat
- 1.Rxc4+?
- 1...Rd4
- 2.Sf2#
- 2.Re3#
- 2.d6#
- 1...Bd4
- 2.Sf2#
- 2.Sc5#
- 2.Re3#
- 2.d6#
- 1...bxc4!
- 1...Rd4
- 1.Qg6+?
- 1...Sf5
- 2.Sg5#
- 1...Sxg6!
- 1...Sf5
- 1.Qf7?
- threat
- 2.Sg5#
- 2.Qf4#
- 1...Bxe6
- 2.Qf4#
- 1...Sf5
- 2.Sg5#
- 1...Rf1
- 2.Sg5#
- 2.d6#
- 1...Be3
- 2.Rxe3#
- 1...Sg2
- 2.Sg5#
- 2.Qg6#
- 2.Qf3#
- 1...Sf3
- 2.Qg6#
- 2.Qxf3#
- 2.Qf4#
- 1...Sg6
- 2.Sg5#
- 2.Qxg6#
- 2.Qf3#
- 1...Qc1!
- threat
- 1.Qf5+?
- 1...Sxf5
- 2.Sg5#
- 1...Kxf5!
- 1...Sxf5
- 1.Qg5?
- threat
- 2.Qf4#
- 1...Rf1
- 2.d6#
- 1...Be3
- 2.Rxe3#
- 1...Sg2
- 2.Qg6#
- 1...Sg6
- 2.Qxg6#
- 1...Qc1!
- threat
- 1.Sd4?
- Keys
- 1.Bh2!
- threat
- 2.Qe5#
- 1...Rd4
- 2.Sf2#
- 1...Bd4
- 2.d6#
- 1...Sf3
- 2.Qg6#
- 1...Sf5
- 2.Sg5#
- 1...Sg6
- 2.Qxg6#
- threat
- 1.Bh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- R(b);N_GUARD::B(I)+P(F)
- R(b);N_SPINS(d),S_CUTB(h)::S(E)
- B(h);N_GUARD::S(E),XB(h)
- B(h);N_GUARD::R1(C),XB(h)
- B(h);N_SPINS(d),S_CUTR(b)::B(I)+P(F)
- B(h);N_GUARD::S(J),XB(h)
- S(f);N_GUARD::QAB(H)
- S(f);SBLOCK::S(J)
- S(f);N_GUARD::QAB(H),XS(f)
- Tries
- Try
- S(J);N_PINS(d)
- Threat
- DUALS(2)
- Vars
- R(b);XS(J)::S(E)
- B(h);XS(J)::B(I)+P(F)
- B(j);XS(E)::B(I)+P(F)
- S(d);OGATE,XB(G)::QAR1(H),XS(d)
- R(b);::B(I)+P(F)
- B(j);::S(E)
- S(f);::B(I)+P(F)
- Refutation
- B(j);CHECK
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- B(h);N_SPINS(d),S_CUTR(b)::B(I)+P(F)
- S(f);N_GUARD::QAB(H)
- S(f);SBLOCK::S(J)
- S(f);N_GUARD::QAB(H),XS(f)
- Refutation
- R(b);N_SPINS(d)
- Try
- B(G);N_PINS(d)
- Threat
- DUALS(2)
- Vars
- R(b);XB(G)::S(E)
- B(h);XB(G)::B(I)+P(F)
- R(b);::B(I)+P(F)
- B(j);::S(E)
- Refutation
- B(j);XS(J)
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- R(b);N_SPINS(d),S_CUTB(h)::S(E)
- B(h);N_SPINS(d),S_CUTR(b)::B(I)+P(F)
- S(f);N_GUARD::QAB(H)
- S(f);N_GUARD::QAB(H),XS(f)
- Refutation
- S(f);
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- P(i);N_GUARD,XB(G)::S(E)
- R(b);N_SPINS(d),S_CUTB(h)::S(E)
- S(f);N_GUARD::QAB(H)
- S(f);SBLOCK::S(J)
- S(f);N_GUARD::QAB(H),XS(f)
- Refutation
- B(h);N_SPINS(d)
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- P(i);XB(G)::S(E),XP(i)
- R(b);N_SPINS(d),S_CUTB(h)::S(E)
- B(h);N_SPINS(d),S_CUTR(b)::B(I)+P(F)
- S(f);N_GUARD::QAB(H)
- S(f);N_GUARD::QAB(H),XS(f)
- Refutation
- S(f);
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- R(b);N_SPINS(d),S_CUTB(h)::S(E)
- B(h);N_SPINS(d),S_CUTR(b)::B(I)+P(F)
- S(f);N_GUARD::QAB(H)
- S(f);N_GUARD::QAB(H),XS(f)
- Refutation
- S(f);
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- R(b);N_SPINS(d),S_CUTB(h)::S(E)
- B(h);N_SPINS(d),S_CUTR(b)::B(I)+P(F)
- S(f);N_GUARD::QAB(H)
- S(f);N_GUARD::QAB(H),XS(f)
- Refutation
- S(f);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- B(j);XS(J)::R1(C)
- S(f);N_GUARD,XR(C)::QAB(H)
- B(h);N_GUARD::R1(C),XB(h)
- Refutation
- Q(a);
- Try
- R(C);XS(f)
- Threat
- QAB(H)
- Vars
- R(b);N_GUARD::B(I)+P(F)
- Refutation
- B(j);XS(J)
- Try
- R(D);CHECK,XS(d)
- Refutation
- P(g);XR(D)
- Try
- Q(H);CHECK
- Vars
- S(f);::S(J)
- Refutation
- S(f);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- B(j);XS(J)::QAR1(H)
- S(f);::S(J)
- B(h);N_GUARD::R1(C),XB(h)
- Refutation
- Q(a);
- Try
- Q(H);CHECK
- Vars
- S(f);SBLOCK,XQ(H)::S(J)
- Refutation
- K(e);N_SPINS(d),S_FLIGHT,XQ(H)
- Try
- Q(H);
- Threat
- QAR1(H)
- Vars
- R(b);N_GUARD::B(I)+P(F)
- B(h);N_GUARD::R1(C),XB(h)
- S(f);N_GUARD::QAB(H)
- S(f);N_GUARD::QAB(H),XS(f)
- Refutation
- Q(a);
- Try
- Actual
- B(G);
- Threat
- QAR1(H)
- Vars
- R(b);N_SPINS(d),S_CUTB(h)::S(E)
- B(h);N_SPINS(d),S_CUTR(b)::B(I)+P(F)
- S(f);N_GUARD::QAB(H)
- S(f);SBLOCK::S(J)
- S(f);N_GUARD::QAB(H),XS(f)
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).