MESON Chess Problem Database
Problem Display
PID: 56357 (1K6/2p2Np1/8/1R5B/4Pk1B/Q6b/3bR3/5rr1 w - - 0 1)
Brogi, Giuseppe
Il Due Mosse, 1959
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qf3#
- 1...Rb1
- 2.Qf3#
- 1...Rc1
- 2.Qf3#
- 1...Rd1
- 2.Qf3#
- 1...Re1
- 2.Qf3#
- 1...Rf3
- 2.Qxf3#
- 1...Rh1
- 2.Bg3#
- 2.Bg5#
- 2.Qg3#
- 1...Rg3
- 2.Bxg3#
- 2.Qxg3#
- 1...Rg4
- 2.Rf5#
- 1...Rg5
- 2.Bxg5#
- 1...Be1
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Bb4
- 2.Qe3#
- 1...Ba5
- 2.Qe3#
- 1...Bg2
- 2.Bg3#
- 2.Bg5#
- 2.Rf5#
- 2.Qg3#
- 1...Bg4
- 2.Bg5#
- 1...Bf5
- 2.Rxf5#
- 1...c6
- 2.Qd6#
- 1...Ra1
- Tries
- 1.Be1?
- threat
- 2.Bxd2#
- 1...Rxe1
- 2.Qf3#
- 1...Bxe1
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Rf3
- 2.Qxf3#
- 1...Rg3
- 2.Bxg3#
- 2.Qxg3#
- 1...Bc1
- 2.Qxc1#
- 1...Bb4
- 2.Qe3#
- 1...Ba5
- 2.Qe3#
- 1...Bc3!
- threat
- 1.Qc5?
- threat
- 2.Qe5#
- 2.Qxc7#
- 1...Rg4
- 2.Qf5#
- 1...Be3
- 2.Qxe3#
- 2.Qe5#
- 1...Rc1
- 2.Qf2#
- 2.Qe5#
- 1...Rg5
- 2.Qxg5#
- 1...Rg6
- 2.Qe5#
- 1...Bc3
- 2.Qe3#
- 1...Bb4
- 2.Qe3#
- 2.Qe5#
- 1...Ba5
- 2.Qe3#
- 2.Qe5#
- 1...c6
- 2.Qd6#
- 2.Qe5#
- 1...Bg4!
- threat
- 1.Qc3?
- threat
- 2.Qxd2#
- 2.Qe5#
- 2.Qxc7#
- 1...Be3
- 2.Qe5#
- 2.Qxe3#
- 1...Rc1
- 2.Qxd2#
- 2.Qe5#
- 2.Qf3#
- 1...Rd1
- 2.Qe5#
- 2.Qf3#
- 2.Qxc7#
- 1...Rf3
- 2.Qe5#
- 2.Qxf3#
- 2.Qxc7#
- 1...Rg3
- 2.Bxg3#
- 2.Qe5#
- 2.Qxg3#
- 2.Qxc7#
- 1...Rg4
- 2.Rf5#
- 1...Rg5
- 2.Bxg5#
- 2.Qxd2#
- 1...Rg6
- 2.Qxd2#
- 2.Qe5#
- 1...Bc1
- 2.Qe5#
- 2.Qxc7#
- 1...Be1
- 2.Qe5#
- 2.Qe3#
- 2.Qxc7#
- 1...Bg4
- 2.Bg5#
- 1...c5
- 2.Qxd2#
- 2.Qe5#
- 1...c6
- 2.Qxd2#
- 2.Qe5#
- 1...Bxc3!
- threat
- 1.Qd3?
- threat
- 2.Qxd2#
- 1...Rd1
- 2.Rf2#
- 2.Qf3#
- 1...Rf3
- 2.Qxf3#
- 1...Rg3
- 2.Bxg3#
- 2.Qxg3#
- 1...Rg4
- 2.Rf5#
- 1...Be1
- 2.Qe3#
- 1...Bc3
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Bb4
- 2.Qe3#
- 1...Ba5
- 2.Qe3#
- 1...Bg4
- 2.Bg5#
- 1...Bc1!
- threat
- 1.Qxh3?
- threat
- 2.Rf5#
- 2.Qf5#
- 1...Be3
- 2.Qf5#
- 2.Qxe3#
- 1...Rb1
- 2.Qf5#
- 2.Qf3#
- 1...Rg4
- 2.Rf5#
- 2.Qxf1#
- 2.Qxg4#
- 1...Rg5
- 2.Bxg5#
- 2.Qxf1#
- 1...c5
- 2.Qf5#
- 1...g6!
- threat
- 1.Be1?
- Keys
- 1.Se5!
- threat
- 2.Sd3#
- 1...Be3
- 2.Qxe3#
- 1...Rf3
- 2.Qxf3#
- 1...Rg3
- 2.Qxg3#
- 1...Rg4
- 2.Qf8#
- 1...Bg4
- 2.Sg6#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- R(a);N_GUARD::QAR1(B)
- R(a);N_GUARD,P_PINR(E)::QAR1(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- R(b);S_CUTB(d)::R1(E)
- R(b);N_GUARD::B(D),XR(b)
- B(c);N_GUARD::QAB1(B)
- B(c);N_GUARD::QAB1(B),XB(c)
- B(d);S_CUTR(b)::B(D)
- B(d);N_GUARD::R1(E),XB(d)
- P(f);N_GUARD::QAB(B)
- Tries
- Try
- B(D);
- Threat
- B(D),XB(c)
- Vars
- R(a);N_GUARD,XB(D)::QAR1(B)
- B(c);N_GUARD,XB(D)::QAB1(B)
- B(c);N_GUARD::QAB1(B),XB(c)
- R(a);N_GUARD::QAR1(B),XR(a)
- B(c);OGATEB::QAB(B),XB(c)
- B(c);N_GUARD::QAB1(B)
- Refutation
- B(c);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(b);S_CUTB(d)::QAR1(B)
- R(b);N_GUARD::QAB1(B),XR(b)
- R(b);::QAB1(B)
- B(c);N_GUARD::QAB1(B)
- Refutation
- B(d);
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- R(b);S_CUTB(d)::R1(E)
- B(d);S_CUTR(b)::B(D)
- Refutation
- B(c);XQ(B)
- Try
- Q(B);
- Threat
- QAB(B),XB(c)
- Vars
- R(a);N_GUARD::QAR1(B),XR(a)
- R(b);S_CUTB(d)::R1(E)
- B(c);N_GUARD::QAB1(B)
- B(c);N_GUARD::QAB1(B),XB(c)
- B(d);S_CUTR(b)::B(D)
- Refutation
- B(c);
- Try
- Q(B);XB(d)
- Threat
- DUALS(2)
- Vars
- P(f);::QAR1(B)
- Refutation
- P(g);
- Try
- Actual
- S(G);
- Threat
- S(G)
- Vars
- B(c);N_GUARD::QAB1(B),XB(c)
- R(a);N_GUARD::QAR1(B),XR(a)
- R(b);N_GUARD::QAB1(B),XR(b)
- R(b);S_CUTB(d)::QAR(B)
- B(d);S_CUTR(b)::S(G)
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).