MESON Chess Problem Database
Problem Display
PID: 260823 (3b3r/1N4Rp/4kP1K/1R1q3N/1n1Pn1P1/1B6/6Q1/4r3 w - - 0 1)
de Barbieri, Vittorio
L'Italia Scacchistica, 1933
#2
10 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qxb3
- 2.Re5#
- 1...Qc4
- 2.Re5#
- 1...Ra1
- 2.Qxe4#
- 1...Rb1
- 2.Qxe4#
- 1...Rc1
- 2.Qxe4#
- 1...Rd1
- 2.Qxe4#
- 1...Rf1
- 2.Qxe4#
- 1...Rg1
- 2.Qxe4#
- 1...Rh1
- 2.Qxe4#
- 1...Ba5
- 2.Re7#
- 1...Bb6
- 2.Re7#
- 1...Bxf6
- 2.Sf4#
- 1...Bc7
- 2.Re7#
- 1...Be7
- 2.Rxe7#
- 1...Sa2
- 2.Bxd5#
- 1...Sc2
- 2.Bxd5#
- 1...Sd3
- 2.Bxd5#
- 1...Sa6
- 2.Bxd5#
- 1...Sc6
- 2.Bxd5#
- 1...Sd6
- 2.Sc5#
- 1...Sxf6
- 2.Sf4#
- 1...Qxb3
- Tries
- 1.Rxd5?
- threat
- 2.Re5#
- 2.Rd6#
- 1...Be7
- 2.Rd6#
- 2.Rxe7#
- 1...Sd6
- 2.Sc5#
- 2.Re5#
- 2.Rxd6#
- 1...Sxd5!
- threat
- 1.Rb6+?
- 1...Bxb6
- 2.Re7#
- 1...Sd6
- 2.Sc5#
- 2.Rxd6#
- 1...Sc6!
- 1...Bxb6
- 1.Qf3?
- threat
- 2.Qf5#
- 1...Rf1
- 2.Qxe4#
- 1...Sd6
- 2.Sc5#
- 1...Sg3!
- threat
- 1.Qh2?
- threat
- 2.Qe5#
- 1...Bxf6
- 2.Sf4#
- 1...Sxf6
- 2.Sf4#
- 2.Sc5#
- 2.Qd6#
- 1...Be7
- 2.Rxe7#
- 1...Bc7
- 2.Re7#
- 1...Sd3
- 2.Bxd5#
- 1...Sc6
- 2.Bxd5#
- 1...Sd2
- 2.Sc5#
- 2.Qd6#
- 1...Sf2
- 2.Sc5#
- 2.Qd6#
- 1...Sc3
- 2.Sc5#
- 2.Qd6#
- 1...Sc5
- 2.Sxc5#
- 2.Qd6#
- 1...Sg5
- 2.Sc5#
- 2.Qd6#
- 1...Sd6
- 2.Sc5#
- 2.Qxd6#
- 1...Sg3!
- threat
- 1.Qg3?
- threat
- 2.Qe5#
- 1...Bxf6
- 2.Sf4#
- 1...Sxf6
- 2.Sf4#
- 2.Sc5#
- 2.Qd6#
- 1...Be7
- 2.Rxe7#
- 1...Bc7
- 2.Re7#
- 1...Sd3
- 2.Bxd5#
- 1...Sc6
- 2.Bxd5#
- 1...Sd2
- 2.Sc5#
- 2.Qd6#
- 1...Sf2
- 2.Sc5#
- 2.Qd6#
- 1...Sc3
- 2.Sc5#
- 2.Qd6#
- 1...Sc5
- 2.Sxc5#
- 2.Qd6#
- 1...Sg5
- 2.Sc5#
- 2.Qd6#
- 1...Sd6
- 2.Sc5#
- 2.Qxd6#
- 1...Sxg3!
- threat
- 1.Rxd5?
- Keys
- 1.Qc2!
- threat
- 2.Qc8#
- 1...Bxf6
- 2.Sf4#
- 1...Sxc2
- 2.Bxd5#
- 1...Sxf6
- 2.Sf4#
- 2.Qf5#
- 1...Be7
- 2.Rxe7#
- 1...Qc4
- 2.Re5#
- 1...Rc1
- 2.Qxe4#
- 1...Ba5
- 2.Re7#
- 1...Bb6
- 2.Re7#
- 1...Bc7
- 2.Re7#
- 1...Sc6
- 2.Bxd5#
- 1...Sc3
- 2.Qf5#
- 1...Sc5
- 2.Qf5#
- 1...Sd6
- 2.Sc5#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(d);N_SPINQ(d),OGATE,XB(B)::R1(E)
- Q(d);OGATE::R1(E)
- R(a);N_GUARD::QAR2(A),XS(c)
- R(a);N_GUARD,P_PINS(F)::QAR2(A),XS(c)
- B(g);N_GUARD::R1(J)
- B(g);SBLOCK,XP(G)::S(F)
- B(g);N_GUARD::R1(J),XB(g)
- S(b);N_GUARD::B(B),XQ(d)
- S(c);N_GUARD,SBLOCK::S(I)
- S(c);SBLOCK,XP(G)::S(F)
- Tries
- Try
- R(E);XQ(d)
- Threat
- DUALS(2)
- Refutation
- S(b);P_SPINS(b),XR(E)
- Try
- R(E);CHECK
- Vars
- B(g);XR(E)::R1(J)
- Refutation
- S(b);P_SPINS(b)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(a);N_GUARD::QAR2(A),XS(c)
- S(c);N_GUARD,SBLOCK::S(I)
- Refutation
- S(c);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- B(g);SBLOCK,XP(G)::S(F)
- B(g);N_GUARD::R1(J),XB(g)
- B(g);N_GUARD::R1(J)
- S(b);N_GUARD::B(B),XQ(d)
- Refutation
- S(c);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- B(g);SBLOCK,XP(G)::S(F)
- B(g);N_GUARD::R1(J),XB(g)
- B(g);N_GUARD::R1(J)
- S(b);N_GUARD::B(B),XQ(d)
- Refutation
- S(c);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAB(A)
- Vars
- B(g);SBLOCK,XP(G)::S(F)
- S(b);N_GUARD,XQ(A)::B(B),XQ(d)
- B(g);N_GUARD::R1(J),XB(g)
- Q(d);OGATE::R1(E)
- R(a);N_GUARD::QAR2(A),XS(c)
- B(g);N_GUARD::R1(J)
- S(b);N_GUARD::B(B),XQ(d)
- S(c);OGATE::QAB1(A)
- S(c);N_GUARD,SBLOCK::S(I)
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).