MESON Chess Problem Database
Problem Display
PID: 33186 (3k2K1/5B2/2R1P3/2n5/8/Q7/8/8 w - - 0 1)
Oudot, Jean
British Chess Magazine, 1967
#2
5 + 2
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Qd6#
- 2.Qf8#
- 1...Sd3
- 2.Qd6#
- 2.Qf8#
- 1...Sa4
- 2.Qd6#
- 2.Qf8#
- 1...Se4
- 2.Qf8#
- 1...Sa6
- 2.Qd6#
- 2.Qf8#
- 1...Sxe6
- 2.Qd6#
- 1...Sb7
- 2.Qf8#
- 1...Sd7
- 2.e7#
- 1...Sb3
- Tries
- 1.Kh7?
- 1...Sxe6
- 2.Qd6#
- 1...Sb3
- 2.Qd6#
- 2.Qf8#
- 1...Sd3
- 2.Qd6#
- 2.Qf8#
- 1...Sa4
- 2.Qd6#
- 2.Qf8#
- 1...Se4
- 2.Qf8#
- 1...Sa6
- 2.Qd6#
- 2.Qf8#
- 1...Sb7
- 2.Qf8#
- 1...Sd7
- 2.e7#
- 1...Ke7!
- 1...Sxe6
- 1.Kh8?
- 1...Sxe6
- 2.Qd6#
- 1...Sb3
- 2.Qd6#
- 2.Qf8#
- 1...Sd3
- 2.Qd6#
- 2.Qf8#
- 1...Sa4
- 2.Qd6#
- 2.Qf8#
- 1...Se4
- 2.Qf8#
- 1...Sa6
- 2.Qd6#
- 2.Qf8#
- 1...Sb7
- 2.Qf8#
- 1...Sd7
- 2.e7#
- 1...Ke7!
- 1...Sxe6
- 1.Bh5?
- 1...Sxe6
- 2.Qd6#
- 1...Sb3
- 2.Qd6#
- 2.Qf8#
- 1...Sd3
- 2.Qd6#
- 2.Qf8#
- 1...Sa4
- 2.Qd6#
- 2.Qf8#
- 1...Se4
- 2.Qf8#
- 1...Sa6
- 2.Qd6#
- 2.Qf8#
- 1...Sb7
- 2.Qf8#
- 1...Sd7
- 2.e7#
- 1...Ke7!
- 1...Sxe6
- 1.Bg6?
- 1...Sxe6
- 2.Qd6#
- 1...Sb3
- 2.Qd6#
- 2.Qf8#
- 1...Sd3
- 2.Qd6#
- 2.Qf8#
- 1...Sa4
- 2.Qd6#
- 2.Qf8#
- 1...Se4
- 2.Qf8#
- 1...Sa6
- 2.Qd6#
- 2.Qf8#
- 1...Sb7
- 2.Qf8#
- 1...Sd7
- 2.e7#
- 1...Ke7!
- 1...Sxe6
- 1.Qg3?
- threat
- 2.Qh4#
- 2.Qc7#
- 2.Qg5#
- 1...Ke7
- 2.Qh4#
- 2.Qg5#
- 1...Sxe6
- 2.Qd6#
- 1...Se4
- 2.Qc7#
- 1...Sa6
- 2.Qh4#
- 2.Qd6#
- 2.Qg5#
- 1...Sd7!
- threat
- 1.e7+?
- 1...Kd7
- 2.e8Q#
- 1...Kxe7!
- 1...Kd7
- 1.Kh7?
- Keys
- 1.Qb4!
- threat
- 2.Qh4#
- 1...Ke7
- 2.Qh4#
- 1...Sxe6
- 2.Qd6#
- 1...Se4
- 2.Qf8#
- 1...Sd7
- 2.e7#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- S(a);OGATE::QAR2(A)
- S(a);OGATE,XP(C)::QAR2(A)
- S(a);SBLOCK::P(C)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- S(a);OGATE,XP(C)::QAR2(A)
- S(a);OGATE::QAR2(A)
- S(a);SBLOCK::P(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT
- Try
- K(E);P-FLIGHT
- Vars
- S(a);OGATE,XP(C)::QAR2(A)
- S(a);OGATE::QAR2(A)
- S(a);SBLOCK::P(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT
- Try
- B(D);
- Vars
- S(a);OGATE,XP(C)::QAR2(A)
- S(a);OGATE::QAR2(A)
- S(a);SBLOCK::P(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT
- Try
- B(D);
- Vars
- S(a);OGATE,XP(C)::QAR2(A)
- S(a);OGATE::QAR2(A)
- S(a);SBLOCK::P(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(a);N_GUARD,XP(C)::QAR2(A)
- S(a);::QAB1(A)
- Refutation
- S(a);
- Try
- P(C);CHECK
- Vars
- K(b);P-FLIGHT::P=Q
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XP(C)
- Try
- Actual
- Q(A);
- Threat
- QAB(A)
- Vars
- K(b);P_SPINS(a),S_FLIGHT::QAB(A)
- S(a);OGATE,XP(C)::QAR2(A)
- S(a);OGATE::QAR2(A)
- S(a);SBLOCK::P(C)
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).