MESON Chess Problem Database
Problem Display
PID: 78816 (2N3N1/1n4q1/1P6/3k1P2/3P4/p2P2pp/K1R1R1r1/6BB w - - 0 1)
Andrade, Barry Jack da Costa
The Tablet, 1960
(First published on Sat Jul 2 1960)
#2
11 + 7
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qxd4
- 2.Sge7#
- 1...Qe5
- 2.Rxe5#
- 1...Qf6
- 2.Sxf6#
- 1...Qh6
- 2.Sge7#
- 2.Re5#
- 1...Qf8
- 2.Re5#
- 1...Qh8
- 2.Sge7#
- 1...Qg4
- 2.Sf6#
- 2.Sge7#
- 2.Re5#
- 1...Qg5
- 2.Re5#
- 1...Qg6
- 2.Sge7#
- 2.Re5#
- 1...Qc7
- 2.Sf6#
- 1...Qd7
- 2.Sf6#
- 2.Re5#
- 1...Qe7
- 2.Sgxe7#
- 1...Qf7
- 2.Re5#
- 1...Qh7
- 2.Sf6#
- 2.Re5#
- 1...Qxg8
- 2.Re5#
- 1...Sa5
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...Sd6
- 2.Rc5#
- 1...Sd8
- 2.Rc5#
- 1...h2
- 2.Bxg2#
- 1...Qxd4
- Tries
- 1.Kb1?
- 1...Qxd4
- 2.Sge7#
- 1...Qxg8
- 2.Re5#
- 1...Sc5
- 2.Rxc5#
- 1...Qe5
- 2.Rxe5#
- 1...Qf6
- 2.Sxf6#
- 1...Qh6
- 2.Sge7#
- 2.Re5#
- 1...Qf8
- 2.Re5#
- 1...Qh8
- 2.Sge7#
- 1...Qg4
- 2.Sf6#
- 2.Sge7#
- 2.Re5#
- 1...Qg5
- 2.Re5#
- 1...Qg6
- 2.Sge7#
- 2.Re5#
- 1...Qc7
- 2.Sf6#
- 1...Qd7
- 2.Sf6#
- 2.Re5#
- 1...Qe7
- 2.Sgxe7#
- 1...Qf7
- 2.Re5#
- 1...Qh7
- 2.Sf6#
- 2.Re5#
- 1...Sa5
- 2.Rc5#
- 1...Sd6
- 2.Rc5#
- 1...Sd8
- 2.Rc5#
- 1...h2
- 2.Bxg2#
- 1...a2+!
- 1...Qxd4
- 1.Kxa3?
- 1...Qe7+
- 2.Sgxe7#
- 1...Qxd4
- 2.Sge7#
- 1...Qxg8
- 2.Re5#
- 1...Sc5
- 2.Rxc5#
- 1...Qe5
- 2.Rxe5#
- 1...Qf6
- 2.Sxf6#
- 1...Qh6
- 2.Sge7#
- 2.Re5#
- 1...Qh8
- 2.Sge7#
- 1...Qg4
- 2.Sf6#
- 2.Sge7#
- 2.Re5#
- 1...Qg5
- 2.Re5#
- 1...Qg6
- 2.Sge7#
- 2.Re5#
- 1...Qc7
- 2.Sf6#
- 1...Qd7
- 2.Sf6#
- 2.Re5#
- 1...Qf7
- 2.Re5#
- 1...Qh7
- 2.Sf6#
- 2.Re5#
- 1...Sa5
- 2.Rc5#
- 1...Sd6
- 2.Rc5#
- 1...Sd8
- 2.Rc5#
- 1...h2
- 2.Bxg2#
- 1...Qf8+!
- 1...Qe7+
- 1.Bf2?
- 1...Qxd4
- 2.Sge7#
- 1...Qxg8
- 2.Re5#
- 1...Sc5
- 2.Rxc5#
- 1...Qe5
- 2.Rxe5#
- 1...Qf6
- 2.Sxf6#
- 1...Qh6
- 2.Sge7#
- 2.Re5#
- 1...Qf8
- 2.Re5#
- 1...Qh8
- 2.Sge7#
- 1...Qg4
- 2.Sf6#
- 2.Sge7#
- 2.Re5#
- 1...Qg5
- 2.Re5#
- 1...Qg6
- 2.Sge7#
- 2.Re5#
- 1...Qc7
- 2.Sf6#
- 1...Qd7
- 2.Sf6#
- 2.Re5#
- 1...Qe7
- 2.Sgxe7#
- 1...Qf7
- 2.Re5#
- 1...Qh7
- 2.Sf6#
- 2.Re5#
- 1...Sa5
- 2.Rc5#
- 1...Sd6
- 2.Rc5#
- 1...Sd8
- 2.Rc5#
- 1...h2
- 2.Bxg2#
- 1...gxf2!
- 1...Qxd4
- 1.f6?
- threat
- 2.Re5#
- 1...Qxf6
- 2.Sxf6#
- 1...Sc5
- 2.Rxc5#
- 1...Qg5
- 2.Sge7#
- 1...Qe7
- 2.Sgxe7#
- 1...Qc7!
- threat
- 1.Kb1?
- Keys
- 1.Re6!
- 1...Qxd4
- 2.Sce7#
- 2.Sge7#
- 1...Qxg8
- 2.Se7#
- 2.Re5#
- 1...Qe5
- 2.Sce7#
- 2.Sge7#
- 2.Rxe5#
- 1...Qf6
- 2.Sxf6#
- 1...Qh6
- 2.Sce7#
- 2.Sge7#
- 2.Re5#
- 1...Qf8
- 2.Re5#
- 1...Qh8
- 2.Sce7#
- 2.Sge7#
- 1...Qg4
- 2.Sce7#
- 2.Sf6#
- 2.Sge7#
- 2.Re5#
- 1...Qg5
- 2.Re5#
- 1...Qg6
- 2.Sce7#
- 2.Sge7#
- 2.Re5#
- 1...Qc7
- 2.Sf6#
- 1...Qd7
- 2.Sf6#
- 2.Re5#
- 1...Qe7
- 2.Scxe7#
- 2.Sgxe7#
- 1...Qf7
- 2.Re5#
- 1...Qh7
- 2.Sf6#
- 2.Re5#
- 1...Sa5
- 2.Rd6#
- 1...Sc5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sd8
- 2.Rd6#
- 1...h2
- 2.Bxg2#
- 1...Qxd4
- 1.Re6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(g);N_GUARD,XP(G)::S(K)
- Q(g);N_GUARD::R1(E),XQ(g)
- Q(g);N_GUARD::S(K),XQ(g)
- Q(g);N_GUARD::R1(E)
- Q(g);N_GUARD::S(K)
- Q(g);N_GUARD,XS(K)::R1(E)
- S(f);N_GUARD::R1(D)
- S(f);N_GUARD::R1(D),XS(f)
- P(d);N_GUARD::B(B),XR(a)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- Q(g);N_GUARD,XP(G)::S(K)
- Q(g);N_GUARD,XS(K)::R1(E)
- S(f);N_GUARD::R1(D),XS(f)
- Q(g);N_GUARD::R1(E),XQ(g)
- Q(g);N_GUARD::S(K),XQ(g)
- Q(g);N_GUARD::R1(E)
- Q(g);N_GUARD::S(K)
- S(f);N_GUARD::R1(D)
- P(d);N_GUARD::B(B),XR(a)
- Refutation
- P(b);CHECK
- Try
- K(C);P-FLIGHT,XP(b)
- Vars
- Q(g);CHECK,N_GUARD::S(K),XQ(g)
- Q(g);N_GUARD,XP(G)::S(K)
- Q(g);N_GUARD,XS(K)::R1(E)
- S(f);N_GUARD::R1(D),XS(f)
- Q(g);N_GUARD::R1(E),XQ(g)
- Q(g);N_GUARD::S(K),XQ(g)
- Q(g);N_GUARD::S(K)
- Q(g);N_GUARD::R1(E)
- S(f);N_GUARD::R1(D)
- P(d);N_GUARD::B(B),XR(a)
- Refutation
- Q(g);CHECK
- Try
- B(A);
- Vars
- Q(g);N_GUARD,XP(G)::S(K)
- Q(g);N_GUARD,XS(K)::R1(E)
- S(f);N_GUARD::R1(D),XS(f)
- Q(g);N_GUARD::R1(E),XQ(g)
- Q(g);N_GUARD::S(K),XQ(g)
- Q(g);N_GUARD::R1(E)
- Q(g);N_GUARD::S(K)
- S(f);N_GUARD::R1(D)
- P(d);N_GUARD::B(B),XR(a)
- Refutation
- P(c);XB(A)
- Try
- P(H);
- Threat
- R1(E)
- Vars
- Q(g);XP(H)::S(K),XQ(g)
- S(f);N_GUARD::R1(D),XS(f)
- Q(g);N_GUARD::S(K)
- Q(g);N_GUARD::S(K),XQ(g)
- Refutation
- Q(g);
- Try
- Actual
- R(E);P_SPINR(D)
- Vars
- Q(g);N_GUARD::S(K),XQ(g)
- Q(g);N_GUARD::R1(E)
- Q(g);N_GUARD::S(K)
- S(f);N_GUARD::R1(E)
- S(f);N_GUARD::R1(E),XS(f)
- P(d);N_GUARD::B(B),XR(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).