MESON Chess Problem Database
Problem Display
PID: 98218 (6b1/4R3/1r6/1p6/2p5/8/2PkB3/1K1Nb2Q w - - 0 1)
Lincoln, Robert A
US Problem Bulletin, 1990
#2
6 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rh6
- 2.Qxh6#
- 1...Rb7
- 2.Qh6#
- 1...Rb8
- 2.Qh6#
- 1...Bd5
- 2.Qxd5#
- 1...Rh6
- Tries
- 1.Bf3?
- threat
- 2.Qxe1#
- 1...Bf2
- 2.Re2#
- 1...Bg3
- 2.Re2#
- 1...Bh4
- 2.Re2#
- 1...Be6
- 2.Qh6#
- 1...Re6!
- threat
- 1.Bh5?
- threat
- 2.Qxe1#
- 1...Re6
- 2.Qd5#
- 1...Bf2
- 2.Re2#
- 1...Bg3
- 2.Re2#
- 1...Bh4
- 2.Re2#
- 1...Be6!
- threat
- 1.Qf3?
- threat
- 2.Qc3#
- 2.Qe3#
- 2.Qf4#
- 1...Bf2
- 2.Qc3#
- 1...Bg3
- 2.Qc3#
- 1...Bh4
- 2.Qc3#
- 1...Rf6
- 2.Qc3#
- 2.Qe3#
- 1...Be6
- 2.Qe3#
- 1...c3
- 2.Qxc3#
- 2.Qd3#
- 2.Qe3#
- 2.Qf4#
- 1...b4
- 2.Qe3#
- 2.Qf4#
- 1...Re6!
- threat
- 1.Bf3?
- Keys
- 1.Bg4!
- threat
- 2.Qxe1#
- 1...Re6
- 2.Qd5#
- 1...Bf2
- 2.Re2#
- 1...Bg3
- 2.Re2#
- 1...Bh4
- 2.Re2#
- 1...Be6
- 2.Qh6#
- threat
- 1.Bg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- R(e);N_GUARD::QAB(C),XR(e)
- R(e);N_GUARD::QAB(C)
- B(f);N_GUARD::QAR(C),XB(f)
- Tries
- Try
- B(E);
- Threat
- QAB1(C),XB(a)
- Vars
- B(a);::R1(F)
- B(f);S_CUTR(e)::QAB(C)
- Refutation
- R(e);
- Try
- B(E);
- Threat
- QAB1(C),XB(a)
- Vars
- R(e);S_CUTB(f)::QAR(C)
- B(a);::R1(F)
- Refutation
- B(f);
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- B(a);::QAB1(C)
- B(f);::QAB1(C)
- Refutation
- R(e);
- Try
- Actual
- B(E);
- Threat
- QAB1(C),XB(a)
- Vars
- R(e);S_CUTB(f)::QAR(C)
- B(a);::R1(F)
- B(f);S_CUTR(e)::QAB(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).