MESON Chess Problem Database
Problem Display
PID: 260851 (2R1r1b1/3B1nQp/2npR3/qN1k2p1/1P6/1r1p4/3N1B1K/8 w - - 0 1)
de Barbieri, Vittorio
Kagans Neueste Schachnachrichten, 1922
#2
9 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qxb4
- 2.Sc7#
- 1...Qc7
- 2.Sxc7#
- 1...Qa1
- 2.Sc7#
- 1...Qa2
- 2.Sc7#
- 1...Qa3
- 2.Sc7#
- 1...Qa4
- 2.Sc7#
- 1...Qa6
- 2.Sc7#
- 1...Qa8
- 2.Sc7#
- 1...Rb1
- 2.Sc3#
- 1...Rb2
- 2.Sc3#
- 1...Rc3
- 2.Sxc3#
- 1...Rxb4
- 2.Sc3#
- 1...Rxe6
- 2.Bxc6#
- 1...Sxb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Scd8
- 2.Qd4#
- 1...Se5
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Sfd8
- 2.Rxd6#
- 1...Sh8
- 2.Rxd6#
- 1...Qxb4
- Tries
- 1.Qc3?
- threat
- 2.Qxb3#
- 2.Qc4#
- 2.Qxc6#
- 1...Qxb4
- 2.Sc7#
- 2.Qxc6#
- 1...Rxc3
- 2.Sxc3#
- 1...Rxb4
- 2.Qxc6#
- 1...Rxe6
- 2.Bxc6#
- 1...Rxc8
- 2.Qxb3#
- 2.Qc4#
- 1...Sxb4
- 2.Qd4#
- 2.Qxb3#
- 2.Qc4#
- 1...Sfe5
- 2.Rxd6#
- 1...Qb6
- 2.Qxb3#
- 2.Qc4#
- 1...Qc7
- 2.Sxc7#
- 2.Qxb3#
- 2.Qc4#
- 1...Qa2
- 2.Sc7#
- 2.Qc4#
- 2.Qxc6#
- 1...Qa3
- 2.Sc7#
- 2.Qc4#
- 2.Qxc6#
- 1...Qa4
- 2.Sc7#
- 2.Qc4#
- 2.Qxc6#
- 1...Qa6
- 2.Sc7#
- 2.Qxb3#
- 2.Qc4#
- 1...Qa8
- 2.Sc7#
- 2.Qxb3#
- 2.Qc4#
- 1...Rb1
- 2.Qc4#
- 2.Qxc6#
- 1...Rb2
- 2.Qc4#
- 2.Qxc6#
- 1...Ra3
- 2.Qc4#
- 2.Qxc6#
- 1...Sd4
- 2.Qxd4#
- 2.Qc4#
- 1...Sce5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 2.Qxb3#
- 2.Qc4#
- 1...Se7
- 2.Qd4#
- 2.Qxb3#
- 2.Qc4#
- 1...Sb8
- 2.Qd4#
- 2.Qxb3#
- 2.Qc4#
- 1...Scd8
- 2.Qd4#
- 2.Qxb3#
- 2.Qc4#
- 1...Sfd8
- 2.Rxd6#
- 2.Qxb3#
- 2.Qc4#
- 1...Qxb5!
- threat
- 1.Qf6?
- threat
- 2.Bxc6#
- 2.Qf3#
- 1...Qxb4
- 2.Sc7#
- 2.Bxc6#
- 1...Qxb5
- 2.Qf3#
- 1...Rxb4
- 2.Sc3#
- 2.Bxc6#
- 1...Rxe6
- 2.Bxc6#
- 2.Bxe6#
- 2.Qxe6#
- 1...Rxc8
- 2.Qf3#
- 1...Sxb4
- 2.Qd4#
- 2.Qf3#
- 1...Sfe5
- 2.Rxd6#
- 1...Qb6
- 2.Qf3#
- 1...Qc7
- 2.Sxc7#
- 2.Qf3#
- 1...Qa6
- 2.Sc7#
- 2.Qf3#
- 1...Qa8
- 2.Sc7#
- 2.Qf3#
- 1...Rc3
- 2.Sxc3#
- 2.Qf3#
- 1...Sd4
- 2.Qxd4#
- 1...Sa7
- 2.Qd4#
- 2.Qf3#
- 1...Se7
- 2.Qd4#
- 2.Qf3#
- 1...Sb8
- 2.Qd4#
- 2.Qf3#
- 1...Scd8
- 2.Qd4#
- 2.Qf3#
- 1...Sfd8
- 2.Rxd6#
- 2.Qf3#
- 1...g4
- 2.Bxc6#
- 1...Sce5!
- threat
- 1.Qg6?
- threat
- 2.Bxc6#
- 2.Qe4#
- 1...Qxb4
- 2.Sc7#
- 2.Bxc6#
- 1...Qxb5
- 2.Qe4#
- 1...Rxb4
- 2.Sc3#
- 2.Bxc6#
- 1...Rxe6
- 2.Qxe6#
- 1...Rxc8
- 2.Qe4#
- 1...Sxb4
- 2.Qe4#
- 1...Sfe5
- 2.Rxd6#
- 2.Qe4#
- 1...Qb6
- 2.Qe4#
- 1...Qc7
- 2.Sxc7#
- 2.Qe4#
- 1...Qa6
- 2.Sc7#
- 2.Qe4#
- 1...Qa8
- 2.Sc7#
- 2.Qe4#
- 1...Rc3
- 2.Sxc3#
- 2.Qe4#
- 1...Sd4
- 2.Qe4#
- 1...Sce5
- 2.Qe4#
- 1...Sa7
- 2.Qe4#
- 1...Se7
- 2.Qe4#
- 1...Sb8
- 2.Qe4#
- 1...Scd8
- 2.Qe4#
- 1...Sfd8
- 2.Qe4#
- 1...hxg6!
- threat
- 1.Qc3?
- Keys
- 1.Qa1!
- threat
- 2.Qh1#
- 1...Qxb4
- 2.Sc7#
- 1...Qxa1
- 2.Sc7#
- 1...Rxb4
- 2.Sc3#
- 1...Rxe6
- 2.Bxc6#
- 1...Sfe5
- 2.Rxd6#
- 1...Rb1
- 2.Sc3#
- 1...Sd4
- 2.Qxd4#
- 1...Sce5
- 2.Qd4#
- threat
- 1.Qa1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 16
- Sets
- Q(c);N_GUARD,XP(D)::S(E)
- Q(c);N_GUARD::S(E),XQ(c)
- Q(c);N_GUARD::S(E)
- R(a);N_GUARD::S(E)
- R(a);N_GUARD::S(E),XR(a)
- R(a);N_GUARD,XP(D)::S(E)
- R(j);SBLOCK,XR(F)::B(G),XS(f)
- S(f);N_GUARD,XP(D)::QAR1(H)
- S(f);N_GUARD::QAR1(H),XS(f)
- S(f);N_GUARD::QAR1(H)
- S(h);N_GUARD::R1(F),XP(g)
- Tries
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- R(a);XQ(H)::S(E),XR(a)
- R(a);XP(D)::QAB1(H),XS(f)
- R(j);SBLOCK,XR(F)::B(G),XS(f)
- S(h);N_GUARD::R1(F),XP(g)
- S(f);N_GUARD::QAR1(H)
- Refutation
- Q(c);XS(E)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- Q(c);XS(E)::QAB(H)
- R(j);XR(I)::QAB(H)
- S(h);N_GUARD::R1(F),XP(g)
- Q(c);::QAB(H)
- S(f);N_GUARD::QAR1(H),XS(f)
- P(e);::B(G),XS(f)
- Refutation
- S(f);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- Q(c);XS(E)::QAB1(H)
- R(j);OGATE,XR(F)::QAB1(H),XR(j)
- R(j);XR(I)::QAB1(H)
- S(f);XP(D)::QAB1(H)
- Q(c);::QAB1(H)
- S(f);::QAB1(H)
- S(h);::QAB1(H)
- Refutation
- P(i);XQ(H)
- Try
- Actual
- Q(H);
- Threat
- QAB(H)
- Vars
- Q(c);N_GUARD,XP(D)::S(E)
- Q(c);N_GUARD,XQ(H)::S(E)
- R(a);N_GUARD,XP(D)::S(E)
- R(j);SBLOCK,XR(F)::B(G),XS(f)
- S(h);N_GUARD::R1(F),XP(g)
- R(a);N_GUARD::S(E)
- S(f);N_GUARD::QAR1(H),XS(f)
- S(f);N_GUARD::QAR1(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).