MESON Chess Problem Database
Problem Display
PID: 87686 (5qrb/3NnBn1/4N3/p1r2Rp1/4k3/KQ2Bp2/1p6/1b1R4 w - - 0 1)
Musante, Horacio Luis
American Chess Problemist, 1951
#2
8 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Re5#
- 1...Rc2
- 2.Re5#
- 2.Qd3#
- 1...Rc3
- 2.Re5#
- 1...Rc4
- 2.Re5#
- 1...Re5
- 2.Rxe5#
- 1...Rxf5
- 2.Rd4#
- 1...Rc6
- 2.Re5#
- 1...Rc7
- 2.Re5#
- 1...Rc8
- 2.Re5#
- 1...Ba2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Sd5
- 2.Re5#
- 1...Sexf5
- 2.Sxg5#
- 1...Sgxf5
- 2.Sexc5#
- 1...g4
- 2.Rf4#
- 1...Rc1
- Tries
- 1.Bxc5?
- threat
- 2.Re5#
- 2.Qxf3#
- 1...Kxf5
- 2.Qxf3#
- 1...Sexf5
- 2.Qd5#
- 2.Qb7#
- 1...Sxe6
- 2.Qxf3#
- 1...Qb8
- 2.Qxf3#
- 1...Bd3
- 2.Re5#
- 2.Qxd3#
- 1...Sc6
- 2.Qd5#
- 2.Qxf3#
- 1...Sg6
- 2.Qd5#
- 2.Qxf3#
- 1...Sh5
- 2.Qxf3#
- 1...Se8
- 2.Qxf3#
- 1...f2
- 2.Re5#
- 2.Qf3#
- 1...g4
- 2.Rf4#
- 2.Re5#
- 1...Sgxf5!
- threat
- 1.Bxg5?
- threat
- 2.Rf4#
- 2.Qxf3#
- 1...Kxf5
- 2.Qxf3#
- 1...Qxf7
- 2.Qxf3#
- 1...Rxf5
- 2.Re1#
- 2.Rd4#
- 2.Qa4#
- 2.Qc4#
- 2.Qe3#
- 1...Sgxf5
- 2.Sexc5#
- 1...Sxe6
- 2.Qxf3#
- 1...Qb8
- 2.Qxf3#
- 1...Rc3
- 2.Re5#
- 1...Bd3
- 2.Qxd3#
- 1...Sd5
- 2.Re5#
- 2.Qxf3#
- 1...Sg6
- 2.Qxf3#
- 1...Sh5
- 2.Qxf3#
- 1...f2
- 2.Rf4#
- 2.Qf3#
- 1...Sexf5!
- threat
- 1.Bg6?
- threat
- 2.Sexc5#
- 2.Sxg5#
- 2.Sdxc5#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Qxf5
- 2.Sexc5#
- 2.Sxg5#
- 2.Rd4#
- 1...Rxf5
- 2.Sec5#
- 2.Sxg5#
- 2.Rd4#
- 1...Sexf5
- 2.Sxg5#
- 2.Rd4#
- 1...Sgxf5
- 2.Sexc5#
- 2.Sxg5#
- 1...Sxe6
- 2.Rf4#
- 2.Re5#
- 1...Rc3
- 2.Re5#
- 1...Bd3
- 2.Re5#
- 2.Qxd3#
- 1...Qf6
- 2.Sexc5#
- 2.Sdxc5#
- 2.Sxf6#
- 2.Rf4#
- 2.Re5#
- 1...Qc8
- 2.Sxg5#
- 2.Sf6#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Rc1
- 2.Sxg5#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Rc2
- 2.Sxg5#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 2.Qd3#
- 1...Rc4
- 2.Sxg5#
- 2.Rf4#
- 2.Re5#
- 1...Rb5
- 2.Sxg5#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Rd5
- 2.Sxg5#
- 2.Rf4#
- 2.Re5#
- 1...Re5
- 2.Sxg5#
- 2.Rd4#
- 2.Rf4#
- 2.Rxe5#
- 1...Rc6
- 2.Sxg5#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Rc7
- 2.Sxg5#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Rc8
- 2.Sxg5#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Sd5
- 2.Sxg5#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Sc6
- 2.Sxg5#
- 2.Rf4#
- 2.Re5#
- 1...Sc8
- 2.Sxg5#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Sh5
- 2.Sexc5#
- 2.Sxg5#
- 2.Sdxc5#
- 2.Rf4#
- 2.Re5#
- 1...Se8
- 2.Sexc5#
- 2.Sxg5#
- 2.Sdxc5#
- 2.Rf4#
- 2.Re5#
- 1...f2
- 2.Sexc5#
- 2.Sxg5#
- 2.Sdxc5#
- 2.Rd4#
- 2.Rf4#
- 1...g4
- 2.Sexc5#
- 2.Sg5#
- 2.Sdxc5#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Sxg6!
- threat
- 1.Qc2+?
- 1...Kxe3
- 2.Re1#
- 1...Rxc2
- 2.Re5#
- 1...Bxc2!
- 1...Kxe3
- 1.Qd5+?
- 1...Kxe3
- 2.Qxf3#
- 1...Sxd5
- 2.Re5#
- 1...Rxd5!
- 1...Kxe3
- 1.Qb7+?
- 1...Kxe3
- 2.Qxf3#
- 1...Kxf5
- 2.Qxf3#
- 1...Rd5
- 2.Re5#
- 1...Rc6
- 2.Re5#
- 1...Sd5
- 2.Re5#
- 1...Sc6!
- 1...Kxe3
- 1.Bxc5?
- Keys
- 1.Bd4!
- threat
- 2.Qxf3#
- 1...Kxf5
- 2.Qxf3#
- 1...Rxf5
- 2.Re1#
- 1...Sexf5
- 2.Sf6#
- 1...Sgxf5
- 2.Sdxc5#
- 1...Rc3
- 2.Re5#
- 1...Bd3
- 2.Qxd3#
- 1...f2
- 2.Qf3#
- 1...g4
- 2.Rf4#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(f);N_GUARD::R1(E)
- R(f);N_GUARD,P_PINQ(C)::R1(E)
- R(f);N_GUARD::R1(E),XR(f)
- R(f);SBLOCK,XR(E)::R1(A)
- B(a);N_GUARD::QAB1(C)
- B(a);N_GUARD::QAB1(C),XB(a)
- S(h);S_CUTR(f)::R1(E)
- S(h);SBLOCK,XR(E)::S(F),XP(g)
- S(i);SBLOCK,XR(E)::S(F),XR(f)
- P(g);N_GUARD::R1(E)
- Tries
- Try
- B(D);XR(f)
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT,XR(E)::QAR2(C),XP(c)
- S(i);XS(F)::QAB1(C),XP(c)
- Q(j);::QAB1(C),XP(c)
- S(i);::QAB1(C),XP(c)
- Refutation
- S(i);XR(E)
- Try
- B(D);XP(g)
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT,XR(E)::QAR2(C),XP(c)
- Q(j);XB(H)::QAB1(C),XP(c)
- S(i);SBLOCK,XR(E)::S(F),XR(f)
- S(i);XS(F)::QAB1(C),XP(c)
- Q(j);::QAB1(C),XP(c)
- R(f);N_GUARD,P_PINQ(C)::R1(E)
- B(a);N_GUARD::QAB1(C),XB(a)
- S(h);::QAB1(C),XP(c)
- S(i);::QAB1(C),XP(c)
- Refutation
- S(h);XR(E)
- Try
- B(H);
- Threat
- DUALS(6)
- Vars
- R(f);P_PINQ(C)::B(H)+R(E),DCHECK
- Refutation
- S(h);XB(H)
- Try
- Q(C);CHECK
- Vars
- K(d);P-FLIGHT,XB(D)::R(A)
- R(f);XQ(C)::R1(E)
- Refutation
- B(a);XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(d);OGATE,P-FLIGHT,XB(D)::QAR1(C),XP(c)
- S(h);XQ(C)::R1(E)
- Refutation
- R(f);XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(d);OGATE,P-FLIGHT,XB(D)::QAR1(C),XP(c)
- K(d);OGATE,S_FLIGHT,XR(E)::QAR2(C),XP(c)
- R(f);P_SPINR(f)::R1(E)
- S(h);P_SPINS(h)::R1(E)
- Refutation
- S(h);P_SPINS(h)
- Try
- Actual
- B(D);
- Threat
- QAB1(C),XP(c)
- Vars
- K(d);S_FLIGHT,XR(E)::QAR2(C),XP(c)
- R(f);SBLOCK,XR(E)::R(A)
- S(h);SBLOCK,XR(E)::S(G)
- S(i);SBLOCK,XR(E)::S(G),XR(f)
- R(f);N_GUARD,P_PINQ(C)::R1(E)
- B(a);N_GUARD::QAB1(C),XB(a)
- P(c);::QAB1(C)
- P(g);N_GUARD::R1(E)
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).