MESON Chess Problem Database
Problem Display
PID: 264815 (8/1NPb1B1N/2p4r/rpR1B2n/4k1pb/R2pP3/1P1P4/1K2nQ2 w - - 0 1)
Simoni, Francesco
L'Italia Scacchistica, 1977
#2
12 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Sxd6#
- 1...Rxh7
- 2.Sd6#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 1...Bf6
- 2.Sd6#
- 1...Be6
- 2.Sd6#
- 1...Sf3
- 2.Qxd3#
- 1...Sg3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sf6
- 2.Sd6#
- 2.Qf4#
- 1...Sg7
- 2.Qf4#
- 1...Rd6
- Tries
- 1.Sf6+?
- 1...Bxf6
- 2.Sd6#
- 1...Sxf6
- 2.Sd6#
- 2.Qf4#
- 1...Rxf6!
- 1...Bxf6
- 1.Bh2?
- threat
- 2.Re5#
- 1...Bf2
- 2.Sg5#
- 1...Re6
- 2.Qf5#
- 1...Bg3
- 2.Sg5#
- 1...Bf6
- 2.Sd6#
- 1...Sf3
- 2.Qxd3#
- 1...Sg3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...b4
- 2.Rc4#
- 1...g3!
- threat
- 1.Bc3?
- threat
- 2.Re5#
- 1...Bf2
- 2.Sg5#
- 1...Re6
- 2.Qf5#
- 1...Bg3
- 2.Sg5#
- 1...Bf6
- 2.Sd6#
- 1...b4
- 2.Rc4#
- 1...Sf3!
- threat
- 1.Bd4?
- threat
- 2.Re5#
- 1...Bf2
- 2.Sg5#
- 1...Re6
- 2.Qf5#
- 1...Bg3
- 2.Sg5#
- 1...Bf6
- 2.Sd6#
- 1...Sf3
- 2.Qxd3#
- 1...b4!
- threat
- 1.Bd6?
- threat
- 2.Re5#
- 1...Rxd6
- 2.Sxd6#
- 1...Bf2
- 2.Sg5#
- 1...b4
- 2.Rc4#
- 1...Re6
- 2.Qf5#
- 1...Bg3
- 2.Sg5#
- 1...Sf3
- 2.Qxd3#
- 1...Bf6!
- threat
- 1.Bf6?
- threat
- 2.Sd6#
- 2.Re5#
- 1...Bxf6
- 2.Sd6#
- 1...Sxf6
- 2.Sd6#
- 2.Qf4#
- 1...Bf2
- 2.Sg5#
- 1...b4
- 2.Sd6#
- 2.Rc4#
- 1...Bg3
- 2.Sg5#
- 1...Sf3
- 2.Sd6#
- 2.Qxd3#
- 1...Rxf6!
- threat
- 1.Bg7?
- threat
- 2.Re5#
- 1...Sxg7
- 2.Qf4#
- 1...Bf2
- 2.Sg5#
- 1...b4
- 2.Rc4#
- 1...Re6
- 2.Qf5#
- 1...Bg3
- 2.Sg5#
- 1...Bf6
- 2.Sd6#
- 1...Sf3
- 2.Qxd3#
- 1...Sf6
- 2.Sd6#
- 2.Qf4#
- 1...Rf6!
- threat
- 1.Bh8?
- threat
- 2.Re5#
- 1...Bf2
- 2.Sg5#
- 1...b4
- 2.Rc4#
- 1...Re6
- 2.Qf5#
- 1...Bg3
- 2.Sg5#
- 1...Bf6
- 2.Sd6#
- 1...Sf3
- 2.Qxd3#
- 1...Sf6
- 2.Sd6#
- 2.Qf4#
- 1...Sg7
- 2.Qf4#
- 1...Rf6!
- threat
- 1.Be6?
- threat
- 2.Sd6#
- 2.Qf5#
- 1...Bxe6
- 2.Sd6#
- 1...Bf2
- 2.Sg5#
- 1...Rf6
- 2.Sd6#
- 1...Be7
- 2.Qf5#
- 1...Sf3
- 2.Sd6#
- 2.Qxd3#
- 1...Sg3
- 2.Sd6#
- 2.Qf4#
- 1...Sf4
- 2.Sd6#
- 2.Qxf4#
- 1...Sg7
- 2.Sd6#
- 2.Qf4#
- 1...Rxe6!
- threat
- 1.Bg6+?
- 1...Bf5
- 2.Sd6#
- 2.Bxf5#
- 2.Qxf5#
- 1...Rxg6!
- 1...Bf5
- 1.Sf6+?
- Keys
- 1.Bg3!
- threat
- 2.Re5#
- 1...Bxg3
- 2.Sg5#
- 1...Sxg3
- 2.Qf4#
- 1...Re6
- 2.Qf5#
- 1...Bf6
- 2.Sd6#
- 1...Sf3
- 2.Qxd3#
- 1...Sf4
- 2.Qxf4#
- 1...b4
- 2.Rc4#
- threat
- 1.Bg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(j);N_GUARD::S(I),XR(j)
- R(j);N_GUARD,XS(L)::S(I)
- B(e);N_GUARD::S(L)
- B(e);N_GUARD::S(L),XB(e)
- B(e);S_CUTR(j)::S(I)
- B(k);S_CUTR(j)::S(I)
- S(a);N_GUARD,SBLOCK::QAB1(B),XP(b)
- S(h);N_GUARD::QAR1(B)
- S(h);N_GUARD::QAR1(B),XS(h)
- Tries
- Try
- S(L);CHECK
- Vars
- B(e);XS(L)::S(I)
- Refutation
- R(j);XS(L)
- Try
- B(H);
- Threat
- R1(G)
- Vars
- B(e);N_GUARD::S(L)
- R(j);S_CUTB(k)::QAB1(B)
- B(e);S_CUTR(j)::S(I)
- S(a);N_GUARD,SBLOCK::QAB1(B),XP(b)
- S(h);N_GUARD::QAR1(B)
- S(h);N_GUARD::QAR1(B),XS(h)
- P(g);N_GUARD::R(G)
- Refutation
- P(d);
- Try
- B(H);
- Threat
- R1(G)
- Vars
- B(e);N_GUARD::S(L)
- R(j);S_CUTB(k)::QAB1(B)
- B(e);S_CUTR(j)::S(I)
- P(g);N_GUARD::R(G)
- Refutation
- S(a);
- Try
- B(H);
- Threat
- R1(G)
- Vars
- B(e);N_GUARD::S(L)
- R(j);S_CUTB(k)::QAB1(B)
- B(e);S_CUTR(j)::S(I)
- S(a);N_GUARD,SBLOCK::QAB1(B),XP(b)
- Refutation
- P(g);
- Try
- B(H);
- Threat
- R1(G)
- Vars
- R(j);XB(H)::S(I),XR(j)
- B(e);N_GUARD::S(L)
- P(g);N_GUARD::R(G)
- R(j);S_CUTB(k)::QAB1(B)
- S(a);N_GUARD,SBLOCK::QAB1(B),XP(b)
- Refutation
- B(e);
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- B(e);XB(H)::S(I)
- B(e);N_GUARD::S(L)
- Refutation
- R(j);XB(H)
- Try
- B(H);
- Threat
- R1(G)
- Vars
- S(h);N_GUARD,XB(H)::QAR1(B)
- B(e);N_GUARD::S(L)
- P(g);N_GUARD::R(G)
- R(j);S_CUTB(k)::QAB1(B)
- B(e);S_CUTR(j)::S(I)
- S(a);N_GUARD,SBLOCK::QAB1(B),XP(b)
- Refutation
- R(j);
- Try
- B(H);
- Threat
- R1(G)
- Vars
- B(e);N_GUARD::S(L)
- P(g);N_GUARD::R(G)
- R(j);S_CUTB(k)::QAB1(B)
- B(e);S_CUTR(j)::S(I)
- S(a);N_GUARD,SBLOCK::QAB1(B),XP(b)
- S(h);N_GUARD::QAR1(B)
- Refutation
- R(j);
- Try
- B(K);
- Threat
- DUALS(2)
- Vars
- B(k);XB(K)::S(I)
- B(e);N_GUARD::S(L)
- R(j);::S(I)
- B(e);::QAB1(B)
- Refutation
- R(j);XB(K)
- Try
- B(K);CHECK
- Refutation
- R(j);XB(K)
- Try
- Actual
- B(H);
- Threat
- R1(G)
- Vars
- B(e);N_GUARD,XB(H)::S(L)
- S(h);N_GUARD,XB(H)::QAR1(B)
- R(j);S_CUTB(k)::QAB1(B)
- B(e);S_CUTR(j)::S(I)
- S(a);N_GUARD,SBLOCK::QAB1(B),XP(b)
- S(h);N_GUARD::QAR1(B),XS(h)
- P(g);N_GUARD::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).