MESON Chess Problem Database
Problem Display
PID: 219451 (2B5/4B3/3n4/4k3/Q7/3P4/4K3/8 w - - 0 1)
Barclay, William L
Schach-Report, 1989
#2
5 + 2
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sf5
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...Sxc8
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Se4
- Tries
- 1.Qb5+?
- 1...Kd4
- 2.Bf6#
- 1...Kf4
- 2.Bxd6#
- 2.Qg5#
- 1...Sxb5!
- 1...Kd4
- 1.Qb4?
- threat
- 2.Qxd6#
- 1...Kd5
- 2.Qxd6#
- 1...Sxc8
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sf5
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Sc4!
- threat
- 1.Qc4?
- 1...Sxc8
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sf5
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Sxc4!
- 1...Sxc8
- 1.Qf4+?
- 1...Kd5
- 2.Qxd6#
- 1...Kxf4!
- 1...Kd5
- 1.Qg4?
- 1...Sxc8
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sc4
- 2.Qe4#
- 1...Sb5
- 2.Qe4#
- 1...Sf5
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Kd5!
- 1...Sxc8
- 1.Qh4?
- 1...Sxc8
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sc4
- 2.Qe4#
- 1...Sb5
- 2.Qe4#
- 1...Sf5
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Kd5!
- 1...Sxc8
- 1.Qa5+?
- 1...Kd4
- 2.Bf6#
- 1...Kf4
- 2.Bxd6#
- 2.Qg5#
- 1...Sb5!
- 1...Kd4
- 1.Qb5+?
- Keys
- 1.Qc6!
- threat
- 2.Qxd6#
- 1...Kd4
- 2.Bf6#
- 1...Kf4
- 2.Qxd6#
- 1...Sxc8
- 2.Qe4#
- 1...Sc4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sf5
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- threat
- 1.Qc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::QAR1(C),XS(b)
- S(b);N_GUARD::QAR1(C)
- S(b);N_GUARD,XB(E)::QAR1(C)
- Tries
- Try
- Q(C);CHECK
- Vars
- K(a);S_FLIGHT::B(D)
- Refutation
- S(b);XQ(C)
- Try
- Q(C);
- Threat
- QAB1(C),XS(b)
- Vars
- K(a);P-FLIGHT::QAR1(C),XS(b)
- S(b);N_GUARD,XB(E)::QAR1(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- S(b);N_GUARD::QAR1(C)
- Refutation
- S(b);
- Try
- Q(C);
- Vars
- S(b);N_GUARD,XB(E)::QAR1(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- S(b);N_GUARD::QAR1(C)
- Refutation
- S(b);XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(a);OGATE,P-FLIGHT::QAR1(C),XS(b)
- Refutation
- K(a);S_FLIGHT,XQ(C)
- Try
- Q(C);
- Vars
- S(b);N_GUARD,XB(E)::QAR1(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- S(b);N_GUARD::QAR1(C)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(C);
- Vars
- S(b);N_GUARD,XB(E)::QAR1(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- S(b);N_GUARD::QAR1(C)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(C);CHECK
- Vars
- K(a);S_FLIGHT::B(D)
- Refutation
- S(b);P_SPINS(b)
- Try
- Actual
- Q(C);
- Threat
- QAB1(C),XS(b)
- Vars
- K(a);S_FLIGHT::B(D)
- K(a);S_FLIGHT::QAB(C),XS(b)
- S(b);N_GUARD,XB(E)::QAR1(C)
- S(b);N_GUARD::QAR1(C)
- S(b);N_GUARD::QAR1(C),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).