MESON Chess Problem Database
Problem Display
PID: 214746 (3Q4/3p3n/4b3/B7/1p1R3N/4k2r/1K1R3p/7B w - - 0 1)
Anonymous
Detroit Free Press, 1877
#2
7 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rf3
- 2.Sg2#
- 1...Ba2
- 2.Sf5#
- 1...Bb3
- 2.Sf5#
- 1...Bc4
- 2.Sf5#
- 1...Bd5
- 2.Sf5#
- 1...Bf5
- 2.Sxf5#
- 1...Bf7
- 2.Sf5#
- 1...Bg8
- 2.Sf5#
- 1...Sg5
- 2.Qxg5#
- 1...Sf8
- 2.Qg5#
- 1...b3
- 2.Re4#
- 1...Rf3
- Tries
- 1.Bc7?
- threat
- 2.Bf4#
- 2.R4d3#
- 1...Rxh4
- 2.R4d3#
- 1...Rf3
- 2.Sg2#
- 1...Bc4
- 2.Sf5#
- 2.Bf4#
- 1...Bf5
- 2.Sxf5#
- 2.Bf4#
- 1...d6!
- threat
- 1.Qf6?
- threat
- 2.Sg2#
- 2.R4d3#
- 2.Qe5#
- 2.Qf2#
- 2.Qf4#
- 1...Rxh4
- 2.R4d3#
- 2.Qf2#
- 2.Qf3#
- 1...Rg3
- 2.R4d3#
- 2.Qe5#
- 2.Qf2#
- 2.Qf4#
- 1...Rf3
- 2.Sg2#
- 2.Qe5#
- 2.Qxf3#
- 1...Bc4
- 2.Sg2#
- 2.Sf5#
- 2.Qe5#
- 2.Qf2#
- 2.Qf4#
- 1...Bd5
- 2.Sf5#
- 2.R4d3#
- 2.Qf2#
- 2.Qf4#
- 1...Bf5
- 2.Sxf5#
- 1...Sg5
- 2.Sg2#
- 2.R4d3#
- 2.Qxg5#
- 2.Qf2#
- 2.Qf4#
- 1...d6
- 2.Sg2#
- 2.R4d3#
- 2.Qf2#
- 2.Qf4#
- 2.Qxe6#
- 1...Sxf6!
- threat
- 1.Qc7?
- threat
- 2.R4d3#
- 2.Qf4#
- 2.Qe5#
- 1...Rxh4
- 2.R4d3#
- 2.Qg3#
- 1...Rf3
- 2.Sg2#
- 2.Qe5#
- 1...Bc4
- 2.Sf5#
- 2.Qf4#
- 2.Qe5#
- 1...Bd5
- 2.Sf5#
- 2.R4d3#
- 2.Qf4#
- 1...Bf5
- 2.Sxf5#
- 2.Qf4#
- 1...Sg5
- 2.R4d3#
- 2.Qf4#
- 1...Sf6
- 2.R4d3#
- 2.Qf4#
- 1...d6!
- threat
- 1.Qe7?
- threat
- 2.Sf5#
- 1...Rf3
- 2.Sg2#
- 1...Rxh4!
- threat
- 1.Qa8?
- threat
- 2.Sg2#
- 2.Qe4#
- 1...Rxh4
- 2.Qf3#
- 1...Rg3
- 2.Qe4#
- 1...Bd5
- 2.Sf5#
- 1...Bf5
- 2.Sg2#
- 2.Sxf5#
- 1...Sg5
- 2.Sg2#
- 1...Sf6
- 2.Sg2#
- 1...d5!
- threat
- 1.Qb8?
- threat
- 2.R4d3#
- 2.Qf4#
- 2.Qe5#
- 1...Rxh4
- 2.R4d3#
- 2.Qg3#
- 1...Rf3
- 2.Sg2#
- 2.Qe5#
- 1...Bc4
- 2.Sf5#
- 2.Qf4#
- 2.Qe5#
- 1...Bd5
- 2.Sf5#
- 2.R4d3#
- 2.Qf4#
- 1...Bf5
- 2.Sxf5#
- 2.Qf4#
- 1...Sg5
- 2.R4d3#
- 2.Qf4#
- 1...Sf6
- 2.R4d3#
- 2.Qf4#
- 1...d6!
- threat
- 1.Qe8?
- threat
- 2.Sf5#
- 1...Rf3
- 2.Sg2#
- 1...Rxh4!
- threat
- 1.Qf8?
- threat
- 2.Sg2#
- 2.R4d3#
- 2.Qf2#
- 2.Qf4#
- 1...Rxh4
- 2.R4d3#
- 2.Qf2#
- 2.Qf3#
- 1...Rg3
- 2.R4d3#
- 2.Qf2#
- 2.Qf4#
- 1...Rf3
- 2.Sg2#
- 2.Qxf3#
- 1...Bc4
- 2.Sg2#
- 2.Sf5#
- 2.Qf2#
- 2.Qf4#
- 1...Bd5
- 2.Sf5#
- 2.R4d3#
- 2.Qf2#
- 2.Qf4#
- 1...Bf5
- 2.Sxf5#
- 1...Bf7
- 2.Sf5#
- 1...Sf6
- 2.Qh6#
- 1...Sxf8!
- threat
- 1.Bc7?
- Keys
- 1.Qg8!
- 1...Rxh4
- 2.Qg3#
- 1...Bxg8
- 2.Sf5#
- 1...Rg3
- 2.Qxg3#
- 1...Rf3
- 2.Sg2#
- 1...Ba2
- 2.Sf5#
- 1...Bb3
- 2.Sf5#
- 2.Qxb3#
- 1...Bc4
- 2.Sf5#
- 1...Bg4
- 2.Qb3#
- 1...Bd5
- 2.Sf5#
- 1...Bf5
- 2.Sxf5#
- 1...Bf7
- 2.Sf5#
- 1...Sg5
- 2.Qxg5#
- 1...Sf6
- 2.Qg5#
- 1...Sf8
- 2.Qg5#
- 1...b3
- 2.Re4#
- 1...d5
- 2.Qxe6#
- 1...d6
- 2.Qxe6#
- 1...Rxh4
- 1.Qg8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- R(c);SBLOCK::S(E)
- B(e);N_GUARD::S(E)
- B(e);N_GUARD::S(E),XB(e)
- S(g);N_GUARD::QAB(G),XS(g)
- S(g);N_GUARD::QAB(G)
- P(d);::R1(D)
- Tries
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(c);XS(E)::R1(D)
- R(c);SBLOCK::S(E)
- Refutation
- P(f);
- Try
- Q(G);
- Threat
- DUALS(5)
- Vars
- B(e);N_GUARD::S(E),XB(e)
- Refutation
- S(g);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(3)
- Refutation
- P(f);
- Try
- Q(G);P_PINB(e)
- Threat
- S(E)
- Vars
- R(c);SBLOCK::S(E)
- Refutation
- R(c);XS(E)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,XS(E)::QAR1(G)
- R(c);::QAR1(G)
- B(e);N_GUARD::S(E)
- S(g);::S(E)
- Refutation
- P(f);
- Try
- Q(G);
- Threat
- DUALS(3)
- Refutation
- P(f);
- Try
- Q(G);P_PINB(e)
- Threat
- S(E)
- Vars
- R(c);SBLOCK::S(E)
- Refutation
- R(c);XS(E)
- Try
- Q(G);
- Threat
- DUALS(4)
- Vars
- B(e);N_GUARD::S(E),XB(e)
- B(e);N_GUARD::S(E)
- S(g);N_GUARD::QAB(G)
- Refutation
- S(g);XQ(G)
- Try
- Actual
- Q(G);
- Vars
- R(c);N_GUARD,XS(E)::QAR2(G)
- B(e);N_GUARD,XQ(G)::S(E)
- R(c);N_GUARD::QAR2(G),XR(c)
- R(c);SBLOCK::S(E)
- B(e);N_GUARD::S(E)
- B(e);OGATE::QAR(G)
- B(e);N_GUARD::S(E),XB(e)
- S(g);N_GUARD::QAB(G),XS(g)
- S(g);N_GUARD::QAB(G)
- P(d);::R1(D)
- P(f);N_GUARD::QAR(G),XB(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).