MESON Chess Problem Database
Problem Display
PID: 67699 (8/1B1n4/2NQ4/p1p3p1/4k1P1/Rq5R/b1Pb2Pp/2rrnN1K w - - 0 1)
Musante, Horacio Luis
Chess, 1948
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Qxc2
- 2.Sg3#
- 1...Qa4
- 2.Sg3#
- 1...Qc4
- 2.Sg3#
- 1...Qd5
- 2.Sg3#
- 1...Qe6
- 2.Sg3#
- 1...Qf7
- 2.Sg3#
- 1...Qg8
- 2.Sg3#
- 1...Qb1
- 2.Sg3#
- 1...Qb2
- 2.Sg3#
- 1...Qg3
- 2.Sxg3#
- 1...Qb4
- 2.Sg3#
- 1...Qb5
- 2.Sg3#
- 1...Qb6
- 2.Sg3#
- 1...Qxb7
- 2.Sg3#
- 1...Bc3
- 2.Re3#
- 1...Be3
- 2.Sg3#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...c4
- 2.Sb4#
- 2.Qd4#
- 1...Qxc2
- Tries
- 1.Sd4+?
- 1...Qxb7
- 2.Sg3#
- 1...Qd5!
- 1...Qxb7
- 1.Sxa5+?
- 1...Qxb7
- 2.Sg3#
- 1...Qd5!
- 1...Qxb7
- 1.Sa7+?
- 1...Qxb7
- 2.Sg3#
- 1...Qd5!
- 1...Qxb7
- 1.Se7+?
- 1...Qxb7
- 2.Sg3#
- 1...Qd5!
- 1...Qxb7
- 1.Sb8+?
- 1...Qxb7
- 2.Sg3#
- 1...Qd5!
- 1...Qxb7
- 1.Sd8+?
- 1...Qxb7
- 2.Sg3#
- 1...Qd5!
- 1...Qxb7
- 1.Raxb3?
- threat
- 2.Sg3#
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Sxc2
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Sxg2
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Se5
- 2.Qxe5#
- 1...Bc3
- 2.Sd4#
- 2.Re3#
- 1...Be3
- 2.Sg3#
- 2.Sd4#
- 2.Rbxe3#
- 2.Rhxe3#
- 1...Bb4
- 2.Sg3#
- 2.Sd4#
- 2.Rbe3#
- 2.Rhe3#
- 1...Bf4
- 2.Sd4#
- 1...Sd3
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 2.cxd3#
- 1...Sf3
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 2.gxf3#
- 1...Sb6
- 2.Sg3#
- 2.Qe5#
- 1...Sf6
- 2.Sg3#
- 2.Qe5#
- 1...Sb8
- 2.Sg3#
- 2.Sxb8#
- 2.Qe5#
- 1...a4
- 2.Sg3#
- 2.Sb4#
- 2.Sd4#
- 2.Sa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Bxb3!
- threat
- 1.Rhxb3?
- threat
- 2.Sg3#
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Sxc2
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Sxg2
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Se5
- 2.Qxe5#
- 1...Bc3
- 2.Sd4#
- 1...Be3
- 2.Sg3#
- 2.Sd4#
- 2.Rxe3#
- 1...Bb4
- 2.Sg3#
- 2.Sd4#
- 2.Re3#
- 1...Bf4
- 2.Sd4#
- 1...Sd3
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 2.cxd3#
- 1...Sf3
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 2.gxf3#
- 1...Sb6
- 2.Sg3#
- 2.Qe5#
- 1...Sf6
- 2.Sg3#
- 2.Qe5#
- 1...Sb8
- 2.Sg3#
- 2.Sxb8#
- 2.Qe5#
- 1...a4
- 2.Sg3#
- 2.Sb4#
- 2.Sd4#
- 2.Sa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Bxb3!
- threat
- 1.Re3+?
- 1...Bxe3
- 2.Sg3#
- 1...Qxe3!
- 1...Bxe3
- 1.Qe6+?
- 1...Kf4
- 2.Qf5#
- 1...Se5
- 2.Qxe5#
- 1...Qxe6!
- 1...Kf4
- 1.Qg6+?
- 1...Kf4
- 2.Qf5#
- 1...Kd5!
- 1...Kf4
- 1.cxb3?
- threat
- 2.Sb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Se5
- 2.Qxe5#
- 1...Bc3
- 2.Sd4#
- 2.Re3#
- 1...Be3
- 2.Sg3#
- 2.Rxe3#
- 1...Bb4
- 2.Sd4#
- 2.Re3#
- 1...Bf4
- 2.Sd4#
- 1...Sf3
- 2.Sb4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 2.gxf3#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Sxb8#
- 2.Qe5#
- 1...a4
- 2.Sb4#
- 2.Sd4#
- 2.Sa5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Bxb3!
- threat
- 1.Sd4+?
- Keys
- 1.c4!
- threat
- 2.Sb4#
- 1...Qxc4
- 2.Sg3#
- 1...Qxb7
- 2.Sg3#
- 1...Se5
- 2.Qxe5#
- 1...Qa4
- 2.Sg3#
- 1...Qd3
- 2.Sd4#
- 1...Qb4
- 2.Sg3#
- 2.Sxb4#
- 1...Qb5
- 2.Sg3#
- 1...Qb6
- 2.Sg3#
- 1...Bc3
- 2.Re3#
- 1...Be3
- 2.Sg3#
- 1...Bb4
- 2.Sd4#
- 1...Bf4
- 2.Qg6#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- Q(g);N_GUARD,XP(C)::S(A)
- Q(g);N_GUARD::S(A)
- Q(g);N_GUARD::S(A),XQ(g)
- Q(g);N_GUARD,XB(J)::S(A)
- B(e);N_GUARD,S_CUTQ(g)::R1(F)
- B(e);SBLOCK,S_CUTQ(g)::S(A)
- S(l);N_GUARD::QAR1(I),XS(l)
- S(l);N_GUARD::QAR1(I)
- Tries
- Try
- S(H);CHECK
- Vars
- Q(g);XB(J)::S(A)
- Refutation
- Q(g);P_SPINQ(g)
- Try
- S(H);CHECK,XP(i)
- Vars
- Q(g);XB(J)::S(A)
- Refutation
- Q(g);P_SPINQ(g)
- Try
- S(H);CHECK
- Vars
- Q(g);XB(J)::S(A)
- Refutation
- Q(g);P_SPINQ(g)
- Try
- S(H);CHECK
- Vars
- Q(g);XB(J)::S(A)
- Refutation
- Q(g);P_SPINQ(g)
- Try
- S(H);CHECK
- Vars
- Q(g);XB(J)::S(A)
- Refutation
- Q(g);P_SPINQ(g)
- Try
- S(H);CHECK
- Vars
- Q(g);XB(J)::S(A)
- Refutation
- Q(g);P_SPINQ(g)
- Try
- R(E);XQ(g)
- Threat
- DUALS(8)
- Vars
- S(l);N_GUARD::QAR1(I),XS(l)
- B(e);::B(J)+S(H)
- Refutation
- B(d);XR(E)
- Try
- R(F);XQ(g)
- Threat
- DUALS(8)
- Vars
- S(l);N_GUARD::QAR1(I),XS(l)
- B(e);::B(J)+S(H)
- Refutation
- B(d);XR(F)
- Try
- R(F);CHECK
- Vars
- B(e);SBLOCK,XR(F)::S(A)
- Refutation
- Q(g);XR(F)
- Try
- Q(I);CHECK
- Vars
- K(h);P-FLIGHT::QAR1(I)
- S(l);N_GUARD,P_SPINS(l)::QAR1(I),XS(l)
- Refutation
- Q(g);XQ(I)
- Try
- Q(I);CHECK
- Vars
- K(h);P-FLIGHT::QAR1(I)
- Refutation
- K(h);S_FLIGHT
- Try
- P(C);XQ(g)
- Threat
- DUALS(7)
- Vars
- S(l);N_GUARD::QAR1(I),XS(l)
- B(e);::B(J)+S(H)
- S(l);N_GUARD::QAR1(I)
- Refutation
- B(d);XP(C)
- Try
- Actual
- P(C);
- Threat
- B(J)+S(H)
- Vars
- Q(g);N_GUARD,XP(C)::S(A)
- Q(g);N_GUARD,XB(J)::S(A)
- S(l);N_GUARD::QAR1(I),XS(l)
- Q(g);N_GUARD::S(A)
- Q(g);N_GUARD::B(J)+S(H)
- B(e);N_GUARD,S_CUTQ(g)::R1(F)
- B(e);SBLOCK,S_CUTQ(g)::S(A)
- B(e);S_CUTQ(g)::B(J)+S(H)
- B(e);SBLOCK::QAB(I)
- S(l);N_GUARD::QAR1(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).