MESON Chess Problem Database
Problem Display
PID: 261185 (1qN5/2r3pK/p5R1/3k4/rb3P2/3P1n2/2P2B2/3N2Q1 w - - 0 1)
Benedek, Attila
Neue Zurcher Zeitung, 1977
#2
9 + 8
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qb6
- 2.Sxb6#
- 1...Qa8
- 2.Sb6#
- 1...Rc5
- 2.Se7#
- 1...Ra7
- 2.c4#
- 1...Rb7
- 2.c4#
- 1...Rd7
- 2.c4#
- 1...Re7
- 2.c4#
- 1...Rf7
- 2.c4#
- 1...Be1
- 2.Rd6#
- 1...Bd2
- 2.Rd6#
- 1...Bc3
- 2.Rd6#
- 1...Ba5
- 2.Rd6#
- 1...Bc5
- 2.Sc3#
- 1...Bd6
- 2.Rxd6#
- 1...Se1
- 2.Qg5#
- 1...Sd2
- 2.Qg5#
- 1...Sh2
- 2.Qg5#
- 1...Sg5+
- 2.Qxg5#
- 1...Qb6
- Tries
- 1.Sc3+?
- 1...Bxc3
- 2.Rd6#
- 1...Rxc3!
- 1...Bxc3
- 1.Se7+?
- 1...Rxe7
- 2.c4#
- 1...Bxe7!
- 1...Rxe7
- 1.Bc5?
- threat
- 2.Rd6#
- 2.c4#
- 1...Sg5+
- 2.Qxg5#
- 1...Rxc5
- 2.Se7#
- 1...Rxc8
- 2.c4#
- 1...Bxc5
- 2.Sc3#
- 1...Sd4
- 2.Qxd4#
- 1...Qb5
- 2.Rd6#
- 1...Qb6
- 2.Sxb6#
- 2.c4#
- 1...Rc6
- 2.Se7#
- 2.c4#
- 1...Ra7
- 2.c4#
- 1...Rb7
- 2.c4#
- 1...Rd7
- 2.c4#
- 1...Re7
- 2.Sxe7#
- 2.c4#
- 1...Rf7
- 2.c4#
- 1...Be1
- 2.Rd6#
- 1...Bd2
- 2.Rd6#
- 1...Ba3
- 2.Sc3#
- 2.Rd6#
- 1...Bc3
- 2.Sxc3#
- 2.Rd6#
- 1...Ba5
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 2.Qd4#
- 2.Qg5#
- 1...Se5
- 2.Rd6#
- 2.Qd4#
- 1...Sxg1!
- threat
- 1.Ba7?
- threat
- 2.Se3#
- 1...Sg5+
- 2.Qxg5#
- 1...Rxa7
- 2.c4#
- 1...Bd6
- 2.Rxd6#
- 1...Qb6
- 2.Sxb6#
- 1...Rc5
- 2.Se7#
- 1...Re7
- 2.c4#
- 1...Bd2
- 2.Rd6#
- 1...Bc5
- 2.Sc3#
- 1...Qxa7!
- threat
- 1.Qg4?
- threat
- 2.Qxf3#
- 2.Qe6#
- 1...Sg5+
- 2.Qxg5#
- 1...Qxc8
- 2.Qxf3#
- 1...Bd6
- 2.Rxd6#
- 1...Rc4
- 2.Qe6#
- 1...Qb6
- 2.Sxb6#
- 2.Qxf3#
- 1...Rc6
- 2.Qxf3#
- 1...Re7
- 2.c4#
- 1...Be1
- 2.Rd6#
- 2.Qe6#
- 1...Bd2
- 2.Rd6#
- 2.Qe6#
- 1...Ba3
- 2.Qe6#
- 1...Bc3
- 2.Rd6#
- 2.Qe6#
- 1...Ba5
- 2.Rd6#
- 2.Qe6#
- 1...Bc5
- 2.Sc3#
- 2.Qe6#
- 1...Be7
- 2.Qe6#
- 1...Bf8
- 2.Qe6#
- 1...Se1
- 2.Qf5#
- 2.Qh5#
- 2.Qe6#
- 2.Qg5#
- 1...Sg1
- 2.Qf5#
- 2.Qh5#
- 2.Qe6#
- 2.Qg5#
- 1...Sd2
- 2.Qf5#
- 2.Qh5#
- 2.Qe6#
- 2.Qg5#
- 1...Sh2
- 2.Qf5#
- 2.Qh5#
- 2.Qe6#
- 2.Qg5#
- 1...Sh4
- 2.Qe6#
- 1...Se5
- 2.Qe6#
- 1...Sd4!
- threat
- 1.Qg5+?
- 1...Se5
- 2.Qxe5#
- 1...Sxg5+!
- 1...Se5
- 1.Sc3+?
- Keys
- 1.Bb6!
- threat
- 2.Se3#
- 1...Sg5+
- 2.Qxg5#
- 1...Qxb6
- 2.Sxb6#
- 1...Bd6
- 2.Rxd6#
- 1...Rc5
- 2.Se7#
- 1...Re7
- 2.c4#
- 1...Bd2
- 2.Rd6#
- 1...Bc5
- 2.Sc3#
- threat
- 1.Bb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 11
- Sets
- Q(h);N_GUARD::S(I),XQ(h)
- Q(h);N_GUARD::S(I)
- R(f);N_GUARD,S_CUTB(c)::S(I)
- R(f);N_GUARD::P(C)
- B(c);N_GUARD::R1(G)
- B(c);N_GUARD,S_CUTR(f)::S(A)
- B(c);N_GUARD::R1(G),XB(c)
- S(a);N_GUARD::QAR(B)
- S(a);CHECK,N_GUARD::QAR(B),XS(a)
- Tries
- Try
- S(A);CHECK
- Vars
- B(c);XS(A)::R1(G)
- Refutation
- R(f);XS(A)
- Try
- S(I);CHECK
- Vars
- R(f);XS(I)::P(C)
- Refutation
- B(c);XS(I)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::QAR(B),XS(a)
- R(f);N_GUARD,XB(D)::S(I)
- R(f);XS(I)::P(C)
- B(c);N_GUARD,XB(D)::S(A)
- S(a);N_GUARD::QAR1(B),XS(a)
- Q(h);::R1(G)
- R(f);::P(C)
- B(c);::R1(G)
- Refutation
- S(a);XQ(B)
- Try
- B(D);
- Threat
- S(A)
- Vars
- S(a);CHECK,N_GUARD::QAR(B),XS(a)
- R(f);N_GUARD,XB(D)::P(C)
- B(c);N_GUARD::R1(G),XB(c)
- Q(h);N_GUARD::S(I),XQ(h)
- R(f);N_GUARD,S_CUTB(c)::S(I)
- R(f);N_GUARD::P(C)
- B(c);N_GUARD::R1(G)
- B(c);N_GUARD,S_CUTR(f)::S(A)
- Refutation
- Q(h);XB(D)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::QAR(B),XS(a)
- Q(h);XS(I)::QAB(B),XS(a)
- B(c);N_GUARD::R1(G),XB(c)
- R(f);::QAB1(B)
- R(f);::QAB(B),XS(a)
- R(f);N_GUARD::P(C)
- B(c);::QAB1(B)
- S(a);::QAB1(B)
- Refutation
- S(a);
- Try
- Q(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR1(B),XS(a)
- Refutation
- S(a);CHECK,XQ(B)
- Try
- Actual
- B(D);
- Threat
- S(A)
- Vars
- S(a);CHECK,N_GUARD::QAR(B),XS(a)
- Q(h);XB(D)::S(I),XQ(h)
- B(c);N_GUARD::R1(G),XB(c)
- R(f);N_GUARD,S_CUTB(c)::S(I)
- R(f);N_GUARD::P(C)
- B(c);N_GUARD::R1(G)
- B(c);N_GUARD,S_CUTR(f)::S(A)
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).