MESON Chess Problem Database
Problem Display
PID: 232855 (8/2p1K2Q/2k1p2p/nR2RN1r/P7/3N2pb/5b2/4q3 w - - 0 1)
Morra, Juan Carlos
Il Due Mosse, 1953
#2
7 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Rxe6#
- 1...Qc3
- 2.Rxe6#
- 1...Qb4+
- 2.Sxb4#
- 1...Qa1
- 2.Sb4#
- 2.Rxe6#
- 1...Qb1
- 2.Rxe6#
- 1...Qc1
- 2.Sb4#
- 2.Rxe6#
- 1...Qd1
- 2.Sb4#
- 2.Rxe6#
- 1...Qf1
- 2.Sb4#
- 2.Rxe6#
- 1...Qg1
- 2.Sb4#
- 2.Rxe6#
- 1...Qh1
- 2.Sb4#
- 2.Rxe6#
- 1...Qe2
- 2.Sb4#
- 1...Qe3
- 2.Sb4#
- 1...Qxe5
- 2.Sb4#
- 2.Sxe5#
- 1...Be3
- 2.Rxe6#
- 1...Bd4
- 2.Sxd4#
- 1...Bc5+
- 2.Rexc5#
- 1...exf5
- 2.Qg6#
- 1...Qd2
- Tries
- 1.Re3?
- threat
- 2.Se5#
- 2.Sd4#
- 1...Qb4+
- 2.Sxb4#
- 1...Qxe3
- 2.Sb4#
- 1...Bxe3
- 2.Se5#
- 1...Bxf5
- 2.Se5#
- 1...exf5
- 2.Se5#
- 2.Qg6#
- 1...Qc3
- 2.Rxe6#
- 1...Qa1
- 2.Sb4#
- 2.Rxe6#
- 1...Rh4
- 2.Se5#
- 1...Sb3
- 2.Se5#
- 1...Sc4
- 2.Sd4#
- 1...e5
- 2.Sxe5#
- 2.Qg6#
- 1...Rxf5!
- threat
- 1.Qg6?
- threat
- 2.Qe8#
- 2.Qxe6#
- 1...Qb4+
- 2.Sxb4#
- 1...Bc5+
- 2.Rexc5#
- 1...Qxe5
- 2.Sb4#
- 2.Sxe5#
- 2.Qe8#
- 1...Bxf5
- 2.Qe8#
- 1...Sc4
- 2.Qe8#
- 1...Sb7
- 2.Qe8#
- 1...Bb6!
- threat
- 1.Qg8?
- threat
- 2.Qxe6#
- 2.Qe8#
- 1...Qb4+
- 2.Sxb4#
- 1...Bc5+
- 2.Rexc5#
- 1...Qxe5
- 2.Sb4#
- 2.Sxe5#
- 2.Qe8#
- 1...Bxf5
- 2.Qe8#
- 1...exf5
- 2.Qd5#
- 2.Qe6#
- 2.Qg6#
- 2.Qe8#
- 1...Sc4
- 2.Qa8#
- 2.Qe8#
- 1...Sb7
- 2.Qe8#
- 1...Bb6!
- threat
- 1.Qf7?
- threat
- 2.Qxe6#
- 2.Qe8#
- 1...Qb4+
- 2.Sxb4#
- 1...Bc5+
- 2.Rexc5#
- 1...Qxe5
- 2.Sb4#
- 2.Sxe5#
- 2.Qe8#
- 1...Bxf5
- 2.Qe8#
- 1...exf5
- 2.Qd5#
- 2.Qe6#
- 2.Qg6#
- 2.Qe8#
- 2.Qf6#
- 1...Sc4
- 2.Qe8#
- 1...Sb7
- 2.Qe8#
- 1...Bb6!
- threat
- 1.Qh8?
- threat
- 2.Qe8#
- 1...Qb4+
- 2.Sxb4#
- 1...Bc5+
- 2.Rexc5#
- 1...Bb6!
- threat
- 1.Re3?
- Keys
- 1.Se3!
- threat
- 2.Qe4#
- 1...Qb4+
- 2.Sxb4#
- 1...Qxe3
- 2.Sb4#
- 1...Rxe5
- 2.Sxe5#
- 1...Qh1
- 2.Sb4#
- 1...Rh4
- 2.Rec5#
- 1...Rf5
- 2.Rxe6#
- 1...Bg2
- 2.Rxe6#
- 1...Bf5
- 2.Rec5#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 8
- Sets
- Q(a);N_GUARD::R(D),XP(h)
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- Q(a);N_GUARD::S(A)
- B(b);S_CUTQ(a)::R(D),XP(h)
- B(b);N_GUARD::S(E),XB(b)
- B(b);CHECK,N_GUARD::R1(D),XB(b)
- P(h);OGATEB,P_PINR(D),XS(E)::QAR(G)
- Tries
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- Q(a);N_GUARD,XR(D)::S(A)
- B(b);XR(D)::S(A)
- B(d);XS(E)::S(A)
- Q(a);N_GUARD::R(D),XP(h)
- R(f);::S(A)
- S(e);::S(A)
- S(e);::S(E)
- Refutation
- R(f);XS(E)
- Try
- Q(G);P_PINP(h)
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- B(b);CHECK,N_GUARD::R1(D),XB(b)
- B(d);XS(E)::QAB(G)
- S(e);::QAB(G)
- Refutation
- B(b);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- B(b);CHECK,N_GUARD::R1(D),XB(b)
- B(d);XS(E)::QAB(G)
- S(e);::QAB(G)
- Refutation
- B(b);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- B(b);CHECK,N_GUARD::R1(D),XB(b)
- B(d);XS(E)::QAB(G)
- S(e);::QAB(G)
- Refutation
- B(b);
- Try
- Q(G);
- Threat
- QAB(G)
- Vars
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- B(b);CHECK,N_GUARD::R1(D),XB(b)
- Refutation
- B(b);
- Try
- Actual
- S(E);
- Threat
- QAB(G)
- Vars
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- Q(a);N_GUARD,XS(E)::S(A)
- R(f);XR(D)::S(A),XR(f)
- Q(a);N_GUARD::S(A)
- R(f);N_GUARD::R1(D)
- R(f);S_CUTB(d)::R(D),XP(h)
- B(d);N_GUARD::R(D),XP(h)
- B(d);S_CUTR(f)::R1(D)
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).