MESON Chess Problem Database
Problem Display
PID: 224502 (2bbBQ1K/2r3P1/pR3p2/Pn2kP2/2P4N/4P1pN/6B1/8 w - - 0 1)
Phelps, Francis Bradley
Toledo Daily Blade, 1887
#2
12 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Qxc5#
- 1...Ra7
- 2.Qc5#
- 1...Rb7
- 2.Qc5#
- 1...Rd7
- 2.Re6#
- 1...Re7
- 2.Qxf6#
- 1...Rf7
- 2.Qc5#
- 1...Rxg7
- 2.Qc5#
- 1...Be6
- 2.Rxe6#
- 1...Bb7
- 2.Re6#
- 1...Sa3
- 2.Qd6#
- 1...Sc3
- 2.Qd6#
- 1...Sd4
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- 1...Rc5
- Tries
- 1.Sf2?
- threat
- 2.Sd3#
- 2.Sg4#
- 1...Rxc4
- 2.Sd3#
- 1...Rxg7
- 2.Sd3#
- 2.Qc5#
- 1...Bxf5
- 2.Sf3#
- 1...Rd7
- 2.Sg4#
- 2.Re6#
- 1...gxf2!
- threat
- 1.Sf4?
- threat
- 2.Sd3#
- 2.Sfg6#
- 1...Rxg7
- 2.Sd3#
- 2.Qc5#
- 1...Rd7
- 2.Sfg6#
- 2.Re6#
- 1...Bxf5!
- threat
- 1.Bd7?
- threat
- 2.Sg6#
- 2.Re6#
- 1...Rxd7
- 2.Re6#
- 1...Rc6
- 2.Sg6#
- 1...Sd4
- 2.Sg6#
- 2.Qd6#
- 1...Sd6
- 2.Sg6#
- 2.Qxd6#
- 1...Bxd7!
- threat
- 1.Rxb5+?
- 1...Rc5
- 2.Rxc5#
- 2.Qxc5#
- 1...axb5!
- 1...Rc5
- 1.g8Q?
- threat
- 2.Qd5#
- 2.Qxg3#
- 1...Rxc4
- 2.Qd5#
- 1...Rc5
- 2.Qxc5#
- 2.Qxg3#
- 1...Rd7
- 2.Re6#
- 2.Qe6#
- 2.Qxg3#
- 1...Rf7
- 2.Qc5#
- 2.Qxg3#
- 1...Rg7
- 2.Qc5#
- 2.Qd5#
- 1...Be6
- 2.Rxe6#
- 2.Qxe6#
- 2.Qxg3#
- 1...Bb7
- 2.Re6#
- 2.Qe6#
- 2.Qxg3#
- 1...Sc3
- 2.Qd6#
- 2.Qxg3#
- 1...Rh7+!
- threat
- 1.Sf2?
- Keys
- 1.Sg5!
- 1...Rxc4
- 2.Sf7#
- 1...Rxg7
- 2.Qc5#
- 1...Bxf5
- 2.Shf3#
- 1...fxg5
- 2.Sg6#
- 1...Rc5
- 2.Sf7#
- 2.Qxc5#
- 1...Rc6
- 2.Sf7#
- 1...Ra7
- 2.Qc5#
- 1...Rb7
- 2.Qc5#
- 1...Rd7
- 2.Re6#
- 1...Re7
- 2.Qxf6#
- 1...Rf7
- 2.Sxf7#
- 2.Qc5#
- 1...Be6
- 2.Rxe6#
- 1...Bb7
- 2.Re6#
- 1...Bd7
- 2.Sf7#
- 1...Be7
- 2.Sf7#
- 1...Sa3
- 2.Qd6#
- 1...Sc3
- 2.Qd6#
- 1...Sd4
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- 1...Rxc4
- 1.Sg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- R(f);N_GUARD::QAR2(K),XR(f)
- R(f);N_GUARD::QAR2(K)
- R(f);S_CUTB(g)::R1(H)
- R(f);S_CUTB(h)::QAB1(K),XP(e)
- R(f);N_GUARD,XP(I)::QAR2(K)
- B(g);N_GUARD::R1(H),XB(g)
- B(g);N_GUARD::R1(H)
- S(b);N_GUARD::QAB1(K)
- S(b);N_GUARD::QAB1(K),XS(b)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(f);XP(D)::S(C)
- B(g);SBLOCK,XP(G)::S(E)
- Refutation
- P(a);XS(C)
- Try
- S(C);
- Threat
- DUALS(2)
- Refutation
- B(g);XP(G)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- R(f);XB(J)::R1(H)
- R(f);::S(E)
- Refutation
- B(g);XB(J)
- Try
- R(H);CHECK,XS(b)
- Refutation
- P(d);XR(H)
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- R(f);XP(D)::QAR1(I)
- Refutation
- R(f);CHECK
- Try
- Actual
- S(C);
- Vars
- R(f);N_GUARD,XP(D)::S(C)
- R(f);N_GUARD,XP(I)::QAR2(K)
- B(g);SBLOCK,XP(G)::S(E)
- P(e);XS(C)::S(E)
- R(f);N_GUARD::S(C)
- R(f);N_GUARD::QAR2(K)
- R(f);S_CUTB(g)::R1(H)
- R(f);S_CUTB(h)::QAB1(K),XP(e)
- B(g);N_GUARD::R1(H),XB(g)
- B(g);N_GUARD::R1(H)
- B(g);S_CUTR(f)::S(C)
- B(h);S_CUTR(f)::S(C)
- S(b);N_GUARD::QAB1(K)
- S(b);N_GUARD::QAB1(K),XS(b)
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).