MESON Chess Problem Database
Problem Display
PID: 234642 (4Q3/4p3/8/8/b7/8/b4K1p/7k w - - 0 1)
Lincoln, Robert A
Kudesnik, 2005
#2
2 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Tries
- 1.Qxa4?
- threat
- 2.Qd1#
- 2.Qe4#
- 1...Bb1
- 2.Qd1#
- 1...Bb3
- 2.Qe4#
- 1...Bd5
- 2.Qd1#
- 2.Qa1#
- 1...Bc4!
- threat
- 1.Qc6+?
- 1...Bd5
- 2.Qxd5#
- 1...Bxc6!
- 1...Bd5
- 1.Qxe7?
- threat
- 2.Qe1#
- 2.Qe4#
- 1...Bc4
- 2.Qe4#
- 1...Bb1
- 2.Qe1#
- 1...Bd5
- 2.Qe1#
- 1...Bd1
- 2.Qe1#
- 1...Bc2
- 2.Qe1#
- 1...Bb5
- 2.Qe4#
- 1...Bc6
- 2.Qe1#
- 1...Be6!
- threat
- 1.Qa8+?
- 1...Bd5
- 2.Qxd5#
- 1...Bc6!
- 1...Bd5
- 1.Qxa4?
- Keys
- 1.Qh5!
- threat
- 2.Qf3#
- 1...Bd5
- 2.Qxd5#
- 1...Bd1
- 2.Qxd1#
- 1...Bc6
- 2.Qd1#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(B);XB(d)
- Threat
- DUALS(2)
- Vars
- B(b);::QAR(B)
- B(b);::QAB(B)
- Refutation
- B(b);
- Try
- Q(B);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB(B),XB(b)
- Refutation
- B(d);XQ(B)
- Try
- Q(B);XP(e)
- Threat
- DUALS(2)
- Vars
- B(b);::QAB(B)
- B(b);::QAR(B)
- B(d);::QAR(B)
- B(d);::QAB(B)
- Refutation
- B(b);
- Try
- Q(B);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB(B),XB(b)
- Refutation
- B(d);P_SPINB(d)
- Try
- Actual
- Q(B);P_PINP(c)
- Threat
- QAB(B)
- Vars
- B(b);N_GUARD::QAB(B),XB(b)
- B(d);N_GUARD::QAR(B),XB(d)
- B(d);N_GUARD::QAR(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).