MESON Chess Problem Database
Problem Display
PID: 70676 (Q7/8/2n5/8/2P2B2/1P1k4/1K2N3/6N1 w - - 0 1)
Oudot, Jean
Themes-64, 1958
#2
7 + 2
SOLUTION
- SOUND
- Sets
- 1...Sb4
- 2.Qf3#
- 1...Sd4
- 2.Sc1#
- 1...Sa5
- 2.Qf3#
- 2.Qd5#
- 1...Se5
- 2.Qd5#
- 1...Sa7
- 2.Qf3#
- 2.Qd5#
- 1...Se7
- 2.Qf3#
- 1...Sb8
- 2.Qf3#
- 2.Qd5#
- 1...Sd8
- 2.Qf3#
- 2.Qd5#
- 1...Sb4
- Tries
- 1.Sc3?
- 1...Sd4
- 2.Qe4#
- 1...Sb4
- 2.Qe4#
- 1...Sa5
- 2.Qe4#
- 2.Qd5#
- 2.Qd8#
- 1...Se5
- 2.Qe4#
- 2.Qd5#
- 1...Sa7
- 2.Qe4#
- 2.Qd5#
- 2.Qd8#
- 1...Se7
- 2.Qe4#
- 1...Sb8
- 2.Qe4#
- 2.Qd5#
- 1...Sd8
- 2.Qe4#
- 2.Qd5#
- 2.Qxd8#
- 1...Kd4!
- 1...Sd4
- 1.Sg3?
- 1...Sd4
- 2.Qe4#
- 1...Sb4
- 2.Qe4#
- 1...Sa5
- 2.Qe4#
- 2.Qd5#
- 2.Qd8#
- 1...Se5
- 2.Qe4#
- 2.Qd5#
- 1...Sa7
- 2.Qe4#
- 2.Qd5#
- 2.Qd8#
- 1...Se7
- 2.Qe4#
- 1...Sb8
- 2.Qe4#
- 2.Qd5#
- 1...Sd8
- 2.Qe4#
- 2.Qd5#
- 2.Qxd8#
- 1...Kd4!
- 1...Sd4
- 1.Bc1?
- 1...Sd4
- 2.Sf4#
- 1...Sb4
- 2.Qf3#
- 1...Sa5
- 2.Qf3#
- 2.Qd5#
- 1...Se5
- 2.Qd5#
- 1...Sa7
- 2.Qf3#
- 2.Qd5#
- 1...Se7
- 2.Qf3#
- 1...Sb8
- 2.Qf3#
- 2.Qd5#
- 1...Sd8
- 2.Qf3#
- 2.Qd5#
- 1...Ke4!
- 1...Sd4
- 1.Bg5?
- 1...Sd4
- 2.Sc1#
- 1...Sb4
- 2.Qf3#
- 1...Sa5
- 2.Qf3#
- 2.Qd5#
- 1...Se5
- 2.Qd5#
- 1...Sa7
- 2.Qf3#
- 2.Qd5#
- 1...Se7
- 2.Qf3#
- 1...Sb8
- 2.Qf3#
- 2.Qd5#
- 1...Sd8
- 2.Qf3#
- 2.Qd5#
- 1...Ke4!
- 1...Sd4
- 1.Bh6?
- 1...Sd4
- 2.Sc1#
- 1...Sb4
- 2.Qf3#
- 1...Sa5
- 2.Qf3#
- 2.Qd5#
- 1...Se5
- 2.Qd5#
- 1...Sa7
- 2.Qf3#
- 2.Qd5#
- 1...Se7
- 2.Qf3#
- 1...Sb8
- 2.Qf3#
- 2.Qd5#
- 1...Sd8
- 2.Qf3#
- 2.Qd5#
- 1...Ke4!
- 1...Sd4
- 1.Qa7?
- threat
- 2.Qe3#
- 2.Qh7#
- 1...Ke4
- 2.Qh7#
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Qe3#
- 2.Qd4#
- 1...Se7
- 2.Qe3#
- 2.Qd4#
- 1...Sxa7!
- threat
- 1.Qd8+?
- 1...Ke4
- 2.Qd5#
- 1...Sd4
- 2.Qxd4#
- 1...Sxd8!
- 1...Ke4
- 1.Qh8?
- threat
- 2.Qh7#
- 1...Ke4
- 2.Qh7#
- 1...Sd4
- 2.Qxd4#
- 1...Se7
- 2.Qd4#
- 1...Se5!
- threat
- 1.c5?
- 1...Sd4
- 2.Sc1#
- 1...Sb4
- 2.Qf3#
- 1...Sa5
- 2.Qf3#
- 2.Qd5#
- 1...Se5
- 2.Qd5#
- 1...Sa7
- 2.Qf3#
- 2.Qd5#
- 1...Se7
- 2.Qf3#
- 1...Sb8
- 2.Qf3#
- 2.Qd5#
- 1...Sd8
- 2.Qf3#
- 2.Qd5#
- 1...Ke4!
- 1...Sd4
- 1.Sc3?
- Keys
- 1.Qb7!
- threat
- 2.Qh7#
- 1...Ke4
- 2.Qh7#
- 1...Sd4
- 2.Sc1#
- 1...Se5
- 2.Qd5#
- 1...Se7
- 2.Qf3#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- S(b);OGATE::QAR2(G)
- S(b);SBLOCK::S(C)
- Tries
- Try
- S(C);
- Vars
- S(b);OGATE::QAB1(G)
- Refutation
- K(a);P-FLIGHT
- Try
- S(C);
- Vars
- S(b);OGATE::QAB1(G)
- Refutation
- K(a);P-FLIGHT
- Try
- B(F);
- Vars
- S(b);SBLOCK::S(C)
- S(b);OGATE::QAR2(G)
- Refutation
- K(a);P_SPINS(b),S_FLIGHT
- Try
- B(F);
- Vars
- S(b);SBLOCK::S(C)
- S(b);OGATE::QAR2(G)
- Refutation
- K(a);P_SPINS(b),S_FLIGHT
- Try
- B(F);
- Vars
- S(b);SBLOCK::S(C)
- S(b);OGATE::QAR2(G)
- Refutation
- K(a);P_SPINS(b),S_FLIGHT
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- K(a);S_FLIGHT::QAB(G)
- S(b);N_GUARD::QAR1(G),XS(b)
- Refutation
- S(b);XQ(G)
- Try
- Q(G);CHECK
- Vars
- K(a);S_FLIGHT::QAB1(G)
- S(b);N_GUARD,P_SPINS(b)::QAR1(G),XS(b)
- Refutation
- S(b);XQ(G)
- Try
- Q(G);
- Threat
- QAB(G)
- Vars
- K(a);S_FLIGHT::QAB(G)
- S(b);N_GUARD::QAR1(G),XS(b)
- S(b);N_GUARD::QAR1(G)
- Refutation
- S(b);
- Try
- P(E);
- Vars
- S(b);SBLOCK::S(C)
- S(b);OGATE::QAR2(G)
- Refutation
- K(a);P_SPINS(b),S_FLIGHT
- Try
- Actual
- Q(G);
- Threat
- QAB(G)
- Vars
- K(a);P_SPINS(b),S_FLIGHT::QAB(G)
- S(b);SBLOCK::S(C)
- S(b);OGATE::QAR2(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).