MESON Chess Problem Database
Problem Display
PID: 245618 (4N3/3r3q/3p1n1r/2R1B3/1p2k3/4P2Q/1K2P3/3N2bb w - - 0 1)
Musante, Horacio Luis
Parallele 50, 1950
#2
8 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rh4
- 2.Sxf6#
- 1...Rh5
- 2.Sxf6#
- 1...Ra7
- 2.Sxd6#
- 1...Rb7
- 2.Sxd6#
- 1...Rc7
- 2.Sxd6#
- 1...Re7
- 2.Sxd6#
- 1...Rf7
- 2.Sxd6#
- 1...Rg7
- 2.Sxd6#
- 1...Bf2
- 2.Sxf2#
- 1...Bh2
- 2.Sf2#
- 1...Bf3
- 2.Qxf3#
- 1...Sg4
- 2.Qxg4#
- 1...Sxe8
- 2.Qg4#
- 1...Sg8
- 2.Qg4#
- 1...b3
- 2.Sc3#
- 1...Rh4
- Tries
- 1.Bh2?
- threat
- 2.Qe6#
- 1...Rxh3
- 2.Sxf6#
- 1...Bxh2
- 2.Sf2#
- 1...Bxe3
- 2.Qxe3#
- 1...Sxe8
- 2.Qg4#
- 1...Qf5
- 2.Qxf5#
- 1...Qg8
- 2.Qf5#
- 1...Qe7
- 2.Qf5#
- 1...Qf7
- 2.Qf5#
- 1...Rh5
- 2.Sxf6#
- 1...Re7
- 2.Sxd6#
- 1...Sg4
- 2.Qxg4#
- 1...Sd5
- 2.Rc4#
- 1...Sg8
- 2.Qg4#
- 1...Sh5!
- threat
- 1.Bg3?
- threat
- 2.Qe6#
- 1...Rxh3
- 2.Sxf6#
- 1...Sxe8
- 2.Qg4#
- 1...Qf5
- 2.Qxf5#
- 1...Qg8
- 2.Qf5#
- 1...Qe7
- 2.Qf5#
- 1...Qf7
- 2.Qf5#
- 1...Rh5
- 2.Sxf6#
- 1...Re7
- 2.Sxd6#
- 1...Sg4
- 2.Qxg4#
- 1...Sd5
- 2.Rc4#
- 1...Sh5
- 2.Qxh1#
- 1...Sg8
- 2.Qg4#
- 1...Bxe3!
- threat
- 1.Bd4?
- threat
- 2.Qe6#
- 1...Rxh3
- 2.Sxf6#
- 1...Bxe3
- 2.Qxe3#
- 1...Sxe8
- 2.Qg4#
- 1...Qf5
- 2.Qxf5#
- 1...Qg8
- 2.Qf5#
- 1...Qe7
- 2.Qf5#
- 1...Qf7
- 2.Qf5#
- 1...Rh5
- 2.Sxf6#
- 1...Re7
- 2.Sxd6#
- 1...Bh2
- 2.Sf2#
- 1...Sg4
- 2.Qxg4#
- 1...Sh5
- 2.Qxh1#
- 1...Sg8
- 2.Qg4#
- 1...Sd5!
- threat
- 1.Bxd6?
- threat
- 2.Re5#
- 2.Qe6#
- 1...Rxh3
- 2.Sxf6#
- 2.Re5#
- 1...Rxd6
- 2.Sxd6#
- 1...Bxe3
- 2.Qxe3#
- 1...Sxe8
- 2.Re5#
- 2.Qg4#
- 1...Qf5
- 2.Qxf5#
- 1...Qg8
- 2.Re5#
- 2.Qf5#
- 1...Qe7
- 2.Qf5#
- 1...Qf7
- 2.Re5#
- 2.Qf5#
- 1...Rh5
- 2.Sxf6#
- 1...Bh2
- 2.Sf2#
- 1...Sg4
- 2.Qxg4#
- 1...Sd5
- 2.Rc4#
- 1...Sh5
- 2.Re5#
- 2.Qxh1#
- 1...Sg8
- 2.Re5#
- 2.Qg4#
- 1...Re7!
- threat
- 1.Bxf6?
- threat
- 2.Qg4#
- 2.Qe6#
- 1...Rxf6
- 2.Sxf6#
- 1...Bxe3
- 2.Qxe3#
- 1...dxc5
- 2.Qe6#
- 1...Qf5
- 2.Qxf5#
- 1...Qg6
- 2.Qe6#
- 1...Qg8
- 2.Qf5#
- 1...Qe7
- 2.Qg4#
- 2.Qf5#
- 1...Qf7
- 2.Qg4#
- 2.Qf5#
- 1...Qg7
- 2.Qf5#
- 2.Qe6#
- 1...Rh4
- 2.Qe6#
- 1...Rh5
- 2.Qg4#
- 1...Rg6
- 2.Qf5#
- 2.Qe6#
- 1...Re7
- 2.Sxd6#
- 2.Qg4#
- 1...Rg7
- 2.Sxd6#
- 2.Qe6#
- 1...Bh2
- 2.Sf2#
- 1...Bf3
- 2.Qe6#
- 2.Qxf3#
- 1...Rxh3!
- threat
- 1.Qe6?
- threat
- 2.Bh2#
- 2.Bc3#
- 2.Bg3#
- 2.Bd4#
- 2.Bf4#
- 2.Bxd6#
- 2.Bxf6#
- 2.Rc4#
- 1...Sxe8
- 2.Bf6#
- 2.Rc4#
- 2.Qg4#
- 1...dxc5
- 2.Bh2#
- 2.Bc3#
- 2.Bg3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bxf6#
- 2.Bc7#
- 2.Bb8#
- 1...dxe5
- 2.Rxe5#
- 2.Qxe5#
- 1...Qf5
- 2.Rc4#
- 2.Qc4#
- 1...Qg8
- 2.Rc4#
- 1...Qe7
- 2.Rc4#
- 1...Qf7
- 2.Rc4#
- 1...Rh2
- 2.Sxf6#
- 2.Bxh2#
- 2.Bc3#
- 2.Bg3#
- 2.Bd4#
- 2.Bf4#
- 2.Bxd6#
- 2.Bxf6#
- 2.Rc4#
- 1...Rh5
- 2.Sxf6#
- 2.Rc4#
- 1...Rc7
- 2.Sxd6#
- 2.Bh2#
- 2.Bc3#
- 2.Bg3#
- 2.Bd4#
- 2.Bf4#
- 2.Bxd6#
- 2.Bxf6#
- 1...Re7
- 2.Sxd6#
- 2.Rc4#
- 1...Bh2
- 2.Bxh2#
- 2.Bg3#
- 2.Bf4#
- 2.Rc4#
- 1...Sg4
- 2.Rc4#
- 2.Qxg4#
- 1...Sd5
- 2.Bf6#
- 2.Rc4#
- 1...Sh5
- 2.Bf6#
- 2.Rc4#
- 1...Sg8
- 2.Bf6#
- 2.Rc4#
- 2.Qg4#
- 1...d5
- 2.Bh2#
- 2.Bc3#
- 2.Bg3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bxf6#
- 2.Bc7#
- 2.Bb8#
- 1...Bxe3!
- threat
- 1.Bh2?
- Keys
- 1.Bc3!
- threat
- 2.Qe6#
- 1...bxc3+
- 2.Sxc3#
- 1...Rxh3
- 2.Sxf6#
- 1...Bxe3
- 2.Qxe3#
- 1...Sxe8
- 2.Qg4#
- 1...Qf5
- 2.Qxf5#
- 1...Qg8
- 2.Qf5#
- 1...Qe7
- 2.Qf5#
- 1...Qf7
- 2.Qf5#
- 1...Rh5
- 2.Sxf6#
- 1...Re7
- 2.Sxd6#
- 1...Bh2
- 2.Sf2#
- 1...Sg4
- 2.Qxg4#
- 1...Sd5
- 2.Rc4#
- 1...Sh5
- 2.Qxh1#
- 1...Sg8
- 2.Qg4#
- threat
- 1.Bc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 9
- Sets
- R(g);N_GUARD::S(H),XS(f)
- R(h);N_GUARD::S(H),XP(e)
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- B(b);N_GUARD::QAB1(E),XB(b)
- S(f);N_GUARD::QAR2(E),XS(f)
- S(f);N_GUARD,XS(H)::QAR2(E)
- S(f);N_GUARD::QAR2(E)
- P(c);N_GUARD::S(A)
- Tries
- Try
- B(G);
- Threat
- QAR2(E)
- Vars
- R(g);N_GUARD,XQ(E)::S(H),XS(f)
- B(a);N_GUARD,XB(G)::S(A)
- B(a);OGATE,XP(D)::QAR1(E),XB(a)
- S(f);N_GUARD,XS(H)::QAR2(E)
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);N_GUARD::QAB1(E)
- R(g);N_GUARD::S(H),XS(f)
- R(h);N_GUARD::S(H),XP(e)
- S(f);N_GUARD::QAR2(E),XS(f)
- S(f);SBLOCK::R(F)
- S(f);N_GUARD::QAR2(E)
- Refutation
- S(f);
- Try
- B(G);
- Threat
- QAR2(E)
- Vars
- R(g);N_GUARD,XQ(E)::S(H),XS(f)
- S(f);N_GUARD,XS(H)::QAR2(E)
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);N_GUARD::QAB1(E)
- R(g);N_GUARD::S(H),XS(f)
- R(h);N_GUARD::S(H),XP(e)
- S(f);N_GUARD::QAR2(E),XS(f)
- S(f);SBLOCK::R(F)
- S(f);S_CUTR(g)::QAB(E),XB(b)
- S(f);N_GUARD::QAR2(E)
- Refutation
- B(a);XP(D)
- Try
- B(G);
- Threat
- QAR2(E)
- Vars
- R(g);N_GUARD,XQ(E)::S(H),XS(f)
- B(a);OGATE,XP(D)::QAR1(E),XB(a)
- S(f);N_GUARD,XS(H)::QAR2(E)
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);N_GUARD::QAB1(E)
- R(g);N_GUARD::S(H),XS(f)
- R(h);N_GUARD::S(H),XP(e)
- B(a);N_GUARD::S(A)
- S(f);N_GUARD::QAR2(E),XS(f)
- S(f);S_CUTR(g)::QAB(E),XB(b)
- S(f);N_GUARD::QAR2(E)
- Refutation
- S(f);
- Try
- B(G);XP(e)
- Threat
- DUALS(2)
- Vars
- R(h);XB(G)::S(H),XR(h)
- B(a);OGATE,XP(D)::QAR1(E),XB(a)
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);N_GUARD::QAB1(E)
- R(g);N_GUARD::S(H),XS(f)
- B(a);N_GUARD::S(A)
- S(f);N_GUARD::QAR2(E),XS(f)
- S(f);SBLOCK::R(F)
- Refutation
- R(h);
- Try
- B(G);XS(f)
- Threat
- DUALS(2)
- Vars
- R(g);XB(G)::S(H),XR(g)
- B(a);OGATE,XP(D)::QAR1(E),XB(a)
- P(e);XR(F)::QAR2(E)
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);::QAR2(E)
- Q(i);N_GUARD::QAB1(E)
- R(g);::QAR2(E)
- B(a);N_GUARD::S(A)
- Refutation
- R(g);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(8)
- Vars
- Q(i);::R(F)
- Refutation
- B(a);XP(D)
- Try
- Actual
- B(G);
- Threat
- QAR2(E)
- Vars
- P(c);CHECK,XB(G)::S(A),XP(c)
- R(g);N_GUARD,XQ(E)::S(H),XS(f)
- B(a);OGATE,XP(D)::QAR1(E),XB(a)
- S(f);N_GUARD,XS(H)::QAR2(E)
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);N_GUARD::QAB1(E)
- R(g);N_GUARD::S(H),XS(f)
- R(h);N_GUARD::S(H),XP(e)
- B(a);N_GUARD::S(A)
- S(f);N_GUARD::QAR2(E),XS(f)
- S(f);SBLOCK::R(F)
- S(f);S_CUTR(g)::QAB(E),XB(b)
- S(f);N_GUARD::QAR2(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).