MESON Chess Problem Database
Problem Display
PID: 142064 (3KNR2/8/1p2k1pb/Pn1p4/4NPn1/4P3/1B6/4Q3 w - - 0 1)
Ruzoy, Duchateau A
L'Echiquier d'Aix, 1884
#2
9 + 7
| 14868 | Pirnie Collection | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Bxf4
- 2.Sg7#
- 1...Bg5+
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 2.Sxg7#
- 1...Sf2
- 2.Rf6#
- 1...Sh2
- 2.Rf6#
- 1...Sxe3
- 2.Rf6#
- 1...Se5
- 2.Rf6#
- 1...Sf6
- 2.Rxf6#
- 1...Sa3
- 2.Sc7#
- 1...Sc3
- 2.Sc7#
- 1...Sd4
- 2.Sc7#
- 1...Sd6
- 2.Sc7#
- 1...Sa7
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...bxa5
- 2.Sc5#
- 1...g5
- 2.f5#
- 1...Bxf4
- Tries
- 1.Qc3?
- threat
- 2.Qc8#
- 1...Bg5+
- 2.Sxg5#
- 1...Sxc3
- 2.Sc7#
- 1...dxe4
- 2.Qb3#
- 2.Qc4#
- 1...Sf6
- 2.Rxf6#
- 2.Qe5#
- 2.Qxf6#
- 1...d4
- 2.Qb3#
- 2.Qc4#
- 1...Se5
- 2.Rf6#
- 2.Qxe5#
- 1...Sd6
- 2.Sc7#
- 1...Sa7
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 2.Qc6#
- 1...Bxf8!
- threat
- 1.Qb4?
- threat
- 2.Qe7#
- 1...Bg5+
- 2.Sxg5#
- 1...dxe4
- 2.Qb3#
- 2.Qc4#
- 1...Sf6
- 2.Rxf6#
- 1...d4
- 2.Qb3#
- 2.Qc4#
- 1...Sd6
- 2.Sc7#
- 2.Qxd6#
- 1...Bxf8!
- threat
- 1.Qa1?
- 1...Bg5+
- 2.Sxg5#
- 1...Bxf4
- 2.Sg7#
- 1...Sxe3
- 2.Rf6#
- 1...dxe4
- 2.Qa2#
- 1...bxa5
- 2.Sc5#
- 1...Sf6
- 2.Rxf6#
- 1...d4
- 2.Qa2#
- 1...Bg7
- 2.Sg5#
- 2.Sxg7#
- 1...Sf2
- 2.Rf6#
- 1...Sh2
- 2.Rf6#
- 1...Se5
- 2.Rf6#
- 1...Sa3
- 2.Sc7#
- 1...Sc3
- 2.Sc7#
- 1...Sd4
- 2.Sc7#
- 1...Sd6
- 2.Sc7#
- 1...Sa7
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...g5
- 2.f5#
- 1...Bxf8!
- 1...Bg5+
- 1.Qc1?
- threat
- 2.Qc8#
- 1...Bg5+
- 2.Sxg5#
- 1...dxe4
- 2.Qc4#
- 1...Sf6
- 2.Rxf6#
- 1...d4
- 2.Qc4#
- 1...Se5
- 2.Rf6#
- 1...Sc3
- 2.Sc7#
- 1...Sd6
- 2.Sc7#
- 1...Sa7
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 2.Qc6#
- 1...Bxf8!
- threat
- 1.Qd1?
- threat
- 2.Qxg4#
- 1...Bg5+
- 2.Sxg5#
- 1...Sxe3
- 2.Rf6#
- 1...dxe4
- 2.Qb3#
- 2.Qd7#
- 1...Sf6
- 2.Rxf6#
- 1...d4
- 2.Qb3#
- 1...Sf2
- 2.Rf6#
- 1...Sh2
- 2.Rf6#
- 1...Se5
- 2.Rf6#
- 1...Sd4
- 2.Sc7#
- 1...Sd6
- 2.Sc7#
- 1...Bxf8!
- threat
- 1.Qf1?
- 1...Bg5+
- 2.Sxg5#
- 1...Bxf4
- 2.Sg7#
- 1...Sxe3
- 2.Rf6#
- 1...dxe4
- 2.Qc4#
- 1...bxa5
- 2.Sc5#
- 1...Sf6
- 2.Rxf6#
- 1...d4
- 2.Qc4#
- 1...Bg7
- 2.Sg5#
- 2.Sxg7#
- 1...Sf2
- 2.Rf6#
- 1...Sh2
- 2.Rf6#
- 1...Se5
- 2.Rf6#
- 1...Sa3
- 2.Sc7#
- 1...Sc3
- 2.Sc7#
- 1...Sd4
- 2.Sc7#
- 1...Sd6
- 2.Sc7#
- 1...Sa7
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...g5
- 2.f5#
- 1...Bxf8!
- 1...Bg5+
- 1.Qe2?
- threat
- 2.Qxg4#
- 1...Bg5+
- 2.Sxg5#
- 1...Sxe3
- 2.Rf6#
- 1...dxe4
- 2.Qc4#
- 1...Sf6
- 2.Rxf6#
- 1...d4
- 2.Qc4#
- 1...Sf2
- 2.Rf6#
- 1...Sh2
- 2.Rf6#
- 1...Se5
- 2.Rf6#
- 1...Sd4
- 2.Sc7#
- 1...Sd6
- 2.Sc7#
- 1...Bxf8!
- threat
- 1.Qc3?
- Keys
- 1.Qb1!
- 1...Bg5+
- 2.Sxg5#
- 1...Bxf4
- 2.Sg7#
- 1...Bxf8
- 2.Sg5#
- 1...Sxe3
- 2.Rf6#
- 1...dxe4
- 2.Qa2#
- 1...bxa5
- 2.Sc5#
- 1...Sf6
- 2.Rxf6#
- 1...d4
- 2.Qa2#
- 1...Bg7
- 2.Sg5#
- 2.Sxg7#
- 1...Sf2
- 2.Rf6#
- 1...Sh2
- 2.Rf6#
- 1...Se5
- 2.Rf6#
- 1...Sa3
- 2.Sc7#
- 1...Sc3
- 2.Sc7#
- 1...Sd4
- 2.Sc7#
- 1...Sd6
- 2.Sc7#
- 1...Sa7
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...g5
- 2.f5#
- 1...Bg5+
- 1.Qb1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD,XP(E)::S(H)
- B(g);CHECK,N_GUARD::S(D),XB(g)
- S(a);N_GUARD::R1(I)
- S(a);N_GUARD,XP(C)::R1(I)
- S(a);N_GUARD::R1(I),XS(a)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- P(d);N_GUARD,XP(F)::S(D)
- P(f);N_GUARD::P(E)
- Tries
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- B(g);CHECK,N_GUARD::S(D),XB(g)
- S(b);N_GUARD,XQ(A)::S(H)
- S(b);N_GUARD::S(H)
- Refutation
- B(g);XR(I)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- B(g);CHECK,N_GUARD::S(D),XB(g)
- S(a);N_GUARD::R1(I),XS(a)
- Refutation
- B(g);XR(I)
- Try
- Q(A);
- Vars
- B(g);CHECK,N_GUARD::S(D),XB(g)
- B(g);N_GUARD,XP(E)::S(H)
- S(a);N_GUARD,XP(C)::R1(I)
- P(c);OGATEB,XS(D)::QAB(A)
- P(d);N_GUARD,XP(F)::S(D)
- S(a);N_GUARD::R1(I),XS(a)
- P(c);OGATEB::QAB(A)
- S(a);N_GUARD::R1(I)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- P(f);N_GUARD::P(E)
- Refutation
- B(g);XR(I)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- B(g);CHECK,N_GUARD::S(D),XB(g)
- P(c);OGATEB,XS(D)::QAB(A)
- S(a);N_GUARD::R1(I),XS(a)
- P(c);OGATEB::QAB(A)
- S(a);N_GUARD::R1(I)
- S(b);N_GUARD::S(H)
- Refutation
- B(g);XR(I)
- Try
- Q(A);
- Threat
- QAB(A),XS(a)
- Vars
- B(g);CHECK,N_GUARD::S(D),XB(g)
- S(a);N_GUARD,XP(C)::R1(I)
- S(a);N_GUARD::R1(I),XS(a)
- P(c);OGATEB::QAB(A)
- S(a);N_GUARD::R1(I)
- S(b);N_GUARD::S(H)
- Refutation
- B(g);XR(I)
- Try
- Q(A);
- Vars
- B(g);CHECK,N_GUARD::S(D),XB(g)
- B(g);N_GUARD,XP(E)::S(H)
- S(a);N_GUARD,XP(C)::R1(I)
- P(c);OGATEB,XS(D)::QAB(A)
- P(d);N_GUARD,XP(F)::S(D)
- S(a);N_GUARD::R1(I),XS(a)
- P(c);OGATEB::QAB(A)
- S(a);N_GUARD::R1(I)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- P(f);N_GUARD::P(E)
- Refutation
- B(g);XR(I)
- Try
- Q(A);
- Threat
- QAB(A),XS(a)
- Vars
- B(g);CHECK,N_GUARD::S(D),XB(g)
- S(a);N_GUARD,XP(C)::R1(I)
- P(c);OGATEB,XS(D)::QAB(A)
- S(a);N_GUARD::R1(I),XS(a)
- P(c);OGATEB::QAB(A)
- S(a);N_GUARD::R1(I)
- S(b);N_GUARD::S(H)
- Refutation
- B(g);XR(I)
- Try
- Actual
- Q(A);
- Vars
- B(g);CHECK,N_GUARD::S(D),XB(g)
- B(g);N_GUARD,XP(E)::S(H)
- B(g);N_GUARD,XR(I)::S(D)
- S(a);N_GUARD,XP(C)::R1(I)
- P(c);OGATEB,XS(D)::QAB(A)
- P(d);N_GUARD,XP(F)::S(D)
- S(a);N_GUARD::R1(I),XS(a)
- P(c);OGATEB::QAB(A)
- S(a);N_GUARD::R1(I)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- P(f);N_GUARD::P(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).