MESON Chess Problem Database
Problem Display
PID: 63503 (5b1r/P2p4/7r/R1R1B2p/N3k2N/K1PpP3/B4P2/5n2 w - - 0 1)
Andrade, Barry Jack da Costa
Chess, 1945
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Bg7
- 2.Rc4#
- 1...Sxe3
- 2.f3#
- 1...d2
- 2.Bb1#
- 1...d6
- 2.Rc4#
- 1...Bg7
- Tries
- 1.Bg3?
- threat
- 2.Bd5#
- 1...Bxc5+
- 2.Sxc5#
- 1...Sxe3
- 2.f3#
- 1...d2
- 2.Bb1#
- 1...Rd6
- 2.Re5#
- 1...d5
- 2.Bxd5#
- 1...Sxg3!
- threat
- 1.Bd4?
- threat
- 2.Bd5#
- 2.f3#
- 1...Bxc5+
- 2.Sxc5#
- 1...d2
- 2.Bb1#
- 1...Rd6
- 2.Re5#
- 2.f3#
- 1...Rf6
- 2.Bd5#
- 1...Sd2
- 2.Bd5#
- 1...Sh2
- 2.Bd5#
- 1...d5
- 2.Bxd5#
- 2.f3#
- 1...Sxe3!
- threat
- 1.Bf4?
- threat
- 2.Bd5#
- 2.f3#
- 1...Bxc5+
- 2.Sxc5#
- 1...d2
- 2.Bb1#
- 1...Rd6
- 2.Re5#
- 2.f3#
- 1...Sd2
- 2.Bd5#
- 1...Sh2
- 2.Bd5#
- 1...d5
- 2.Bxd5#
- 2.f3#
- 1...Sxe3!
- threat
- 1.Bd6?
- threat
- 2.Bd5#
- 2.Rc4#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Rxd6
- 2.Re5#
- 1...Sxe3
- 2.f3#
- 1...d2
- 2.Bb1#
- 1...Re6
- 2.Bd5#
- 2.Rc4#
- 2.a8Q#
- 2.a8B#
- 1...Rf6
- 2.Bd5#
- 2.Rc4#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Rg6
- 2.Bd5#
- 2.Rc4#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...R6h7
- 2.Bd5#
- 2.Rc4#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...R8h7
- 2.Bd5#
- 2.Rc4#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Rg8
- 2.Bd5#
- 2.Rc4#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Be7
- 2.Bd5#
- 2.Rc4#
- 2.Re5#
- 1...Bg7
- 2.Bd5#
- 1...Sd2
- 2.Bd5#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Sh2
- 2.Bd5#
- 2.Rc4#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Sg3
- 2.Bd5#
- 2.Rc4#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...Bxd6!
- threat
- 1.Bc7?
- threat
- 2.Bd5#
- 1...Bxc5+
- 2.Sxc5#
- 1...Sxe3
- 2.f3#
- 1...d2
- 2.Bb1#
- 1...Rd6
- 2.Re5#
- 1...d5
- 2.Bxd5#
- 1...d6
- 2.Rc4#
- 1...Bd6!
- threat
- 1.a8Q+?
- 1...d5
- 2.Qxd5#
- 1...Rc6!
- 1...d5
- 1.Bg3?
- Keys
- 1.Bb8!
- threat
- 2.Bd5#
- 1...Bxc5+
- 2.Sxc5#
- 1...Sxe3
- 2.f3#
- 1...d2
- 2.Bb1#
- 1...Rd6
- 2.Re5#
- 1...Bd6
- 2.a8Q#
- 2.a8B#
- 1...d5
- 2.Bxd5#
- 1...d6
- 2.Rc4#
- threat
- 1.Bb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- B(g);N_PINR(I)::R(I)
- S(a);SBLOCK,XP(E)::P(B)
- P(b);OGATEB::B(A)
- P(f);N_PINR(I)::R(I)
- Tries
- Try
- B(J);
- Threat
- B(A)
- Vars
- B(g);CHECK,XR(I)::S(F),XB(g)
- S(a);SBLOCK,XP(E)::P(B)
- P(b);OGATEB::B(A)
- R(e);N_PINR(I)::R1(I)
- P(f);::B(A),XP(f)
- Refutation
- S(a);XB(J)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,XR(I)::S(F),XB(g)
- P(b);OGATEB::B(A)
- R(e);::B(A)
- S(a);::B(A)
- Refutation
- S(a);XP(E)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,XR(I)::S(F),XB(g)
- P(b);OGATEB::B(A)
- S(a);::B(A)
- Refutation
- S(a);XP(E)
- Try
- B(J);N_SPINR(I)
- Threat
- DUALS(5)
- Vars
- R(e);XB(J)::R1(I)
- S(a);SBLOCK,XP(E)::P(B)
- P(b);OGATEB::B(A)
- B(g);::B(A)
- Refutation
- B(g);P_PINR(I),XB(J)
- Try
- B(J);
- Threat
- B(A)
- Vars
- B(g);CHECK,XR(I)::S(F),XB(g)
- S(a);SBLOCK,XP(E)::P(B)
- P(b);OGATEB::B(A)
- R(e);N_PINR(I)::R1(I)
- P(f);::B(A),XP(f)
- P(f);N_PINR(I)::R(I)
- Refutation
- B(g);
- Try
- P(K);CHECK
- Vars
- P(f);P_SPINP(f)::QAB1(K),XP(f)
- Refutation
- R(e);P_SPINR(e)
- Try
- Actual
- B(J);
- Threat
- B(A)
- Vars
- B(g);CHECK,XR(I)::S(F),XB(g)
- S(a);SBLOCK,XP(E)::P(B)
- P(b);OGATEB::B(A)
- R(e);N_PINR(I)::R1(I)
- B(g);S_CUTP(f),S_CUTR(e)::P=Q
- P(f);::B(A),XP(f)
- P(f);N_PINR(I)::R(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).