MESON Chess Problem Database
Problem Display
PID: 264876 (3nR3/1p2N2K/4B1R1/2B1kn1N/4p1pp/6r1/3P4/4Q3 w - - 0 1)
Brogi, Giuseppe
L'Italia Scacchistica, 1954
#2
9 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Se3
- 2.Qa1#
- 1...Sd6
- 2.d4#
- 1...Sh6
- 2.d4#
- 1...Sxe7
- 2.d4#
- 1...Sg7
- 2.d4#
- 1...Se3
- Tries
- 1.Ba2?
- threat
- 2.Sc6#
- 1...Sxe7
- 2.Rg5#
- 1...Se3
- 2.Qa1#
- 1...Sd4
- 2.Bd6#
- 1...Sd6
- 2.d4#
- 1...Sh6
- 2.d4#
- 1...Sg7
- 2.d4#
- 1...Sc6
- 2.Sxc6#
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...Rb3!
- threat
- 1.Bb3?
- threat
- 2.Sc6#
- 1...Sxe7
- 2.Rg5#
- 1...Se3
- 2.Qa1#
- 1...Sd4
- 2.Bd6#
- 1...Sd6
- 2.d4#
- 1...Sh6
- 2.d4#
- 1...Sg7
- 2.d4#
- 1...Sc6
- 2.Sxc6#
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...Rxb3!
- threat
- 1.Bxf5?
- threat
- 2.Qxe4#
- 2.d4#
- 1...Rd3
- 2.Qxe4#
- 1...Sc6
- 2.Re6#
- 2.Qxe4#
- 1...Se6
- 2.Rxe6#
- 2.Qxe4#
- 1...e3
- 2.Qa1#
- 2.d4#
- 1...Re3!
- threat
- 1.Bf7?
- threat
- 2.Sc6#
- 1...Sxe7
- 2.Rg5#
- 1...Se3
- 2.Qa1#
- 1...Sd4
- 2.Bd6#
- 1...Sd6
- 2.d4#
- 1...Sh6
- 2.d4#
- 1...Sg7
- 2.d4#
- 1...Sc6
- 2.Sxc6#
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...Sxf7!
- threat
- 1.Bg8?
- threat
- 2.Sc6#
- 1...Sxe7
- 2.Rg5#
- 1...Se3
- 2.Qa1#
- 1...Sd4
- 2.Bd6#
- 1...Sd6
- 2.d4#
- 1...Sh6
- 2.d4#
- 1...Sg7
- 2.d4#
- 1...Sc6
- 2.Sxc6#
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...Sf7!
- threat
- 1.Rf6?
- threat
- 2.Sg6#
- 1...Sxe7
- 2.d4#
- 1...Sxe6
- 2.Rxf5#
- 1...e3!
- threat
- 1.Qf2?
- threat
- 2.Qf4#
- 2.Qxf5#
- 1...Sxe7
- 2.Qd4#
- 2.Qf4#
- 2.Qf6#
- 1...Sxe6
- 2.Qxf5#
- 1...Se3
- 2.Qf4#
- 2.Qf6#
- 1...Sd4
- 2.Qxd4#
- 2.Qf4#
- 2.Qf6#
- 1...Sd6
- 2.Bd4#
- 2.Qd4#
- 2.Qf4#
- 2.Qf6#
- 1...Sh6
- 2.Qd4#
- 2.Qf4#
- 2.Qf6#
- 1...Sg7
- 2.Qd4#
- 2.Qf4#
- 2.Qf6#
- 1...Rf3!
- threat
- 1.Qa1+?
- 1...Sd4
- 2.Qxd4#
- 1...Rc3!
- 1...Sd4
- 1.Qf1?
- threat
- 2.Qf4#
- 2.Qxf5#
- 1...Sxe7
- 2.Qf4#
- 2.Qf6#
- 1...Sxe6
- 2.Qxf5#
- 1...Se3
- 2.Qa1#
- 2.Qf4#
- 2.Qf6#
- 1...Sd4
- 2.Qf4#
- 2.Qf6#
- 1...Sd6
- 2.Qf4#
- 2.Qf6#
- 1...Sh6
- 2.Qf4#
- 2.Qf6#
- 1...Sg7
- 2.Qf4#
- 2.Qf6#
- 1...Rf3!
- threat
- 1.Ba2?
- Keys
- 1.Bc4!
- threat
- 2.Sc6#
- 1...Sxe7
- 2.Rg5#
- 1...Se3
- 2.Qa1#
- 1...Sd4
- 2.Bd6#
- 1...Sd6
- 2.d4#
- 1...Sh6
- 2.d4#
- 1...Sg7
- 2.d4#
- 1...Sc6
- 2.Sxc6#
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(f);N_GUARD,N_SPINP(b),S_CUTR(a)::QAB(A)
- S(f);N_GUARD::P(B)
- S(f);N_GUARD,XS(G)::P(B)
- Tries
- Try
- B(E);
- Threat
- R(I)+S(G),DCHECK
- Vars
- S(f);OGATEB,P_SPINS(f),XS(G)::R(F)
- S(f);N_GUARD,N_SPINP(b),S_CUTR(a)::QAB(A)
- S(f);N_GUARD,SBLOCK::B(C)
- S(f);N_GUARD::P(B)
- S(h);N_GUARD::R1(F),XS(h)
- Refutation
- R(a);
- Try
- B(E);
- Threat
- R(I)+S(G),DCHECK
- Vars
- S(f);OGATEB,P_SPINS(f),XS(G)::R(F)
- S(f);N_GUARD,N_SPINP(b),S_CUTR(a)::QAB(A)
- S(f);N_GUARD,SBLOCK::B(C)
- S(f);N_GUARD::P(B)
- S(h);N_GUARD::R1(F),XS(h)
- Refutation
- R(a);XB(E)
- Try
- B(E);XS(f)
- Threat
- DUALS(2)
- Vars
- R(a);::QAR1(A),XP(b)
- Refutation
- R(a);N_SPINP(b)
- Try
- B(E);
- Threat
- R(I)+S(G),DCHECK
- Vars
- S(f);OGATEB,P_SPINS(f),XS(G)::R(F)
- S(f);N_GUARD,N_SPINP(b),S_CUTR(a)::QAB(A)
- S(f);N_GUARD,SBLOCK::B(C)
- S(f);N_GUARD::P(B)
- S(h);N_GUARD::R1(F),XS(h)
- Refutation
- S(h);XB(E)
- Try
- B(E);
- Threat
- R(I)+S(G),DCHECK
- Vars
- S(f);OGATEB,P_SPINS(f),XS(G)::R(F)
- S(f);N_GUARD,N_SPINP(b),S_CUTR(a)::QAB(A)
- S(f);N_GUARD,SBLOCK::B(C)
- S(f);N_GUARD::P(B)
- S(h);N_GUARD::R1(F),XS(h)
- Refutation
- S(h);
- Try
- R(F);
- Threat
- S(G)
- Vars
- S(f);N_GUARD,XS(G)::P(B)
- S(h);SBLOCK,XB(E)::R1(F),XS(f)
- Refutation
- P(b);
- Try
- Q(A);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- S(h);XB(E)::QAR1(A),XS(f)
- Refutation
- R(a);
- Try
- Q(A);CHECK,N_PINP(b)
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAB1(A),XS(f)
- Refutation
- R(a);P_SPINR(a)
- Try
- Q(A);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- S(h);XB(E)::QAR1(A),XS(f)
- Refutation
- R(a);
- Try
- Actual
- B(E);
- Threat
- R(I)+S(G),DCHECK
- Vars
- S(f);OGATEB,P_SPINS(f),XS(G)::R(F)
- S(f);N_GUARD,N_SPINP(b),S_CUTR(a)::QAB(A)
- S(f);N_GUARD,SBLOCK::B(C)
- S(f);N_GUARD::P(B)
- S(h);N_GUARD::R1(F),XS(h)
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).