MESON Chess Problem Database
Problem Display
PID: 214572 (4NR2/2pB4/6q1/4p1p1/4k3/6K1/3Q4/b7 w - - 0 1)
Lenau, John W
Newark Sunday Call, 1877
#2
5 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Bxf5#
- 2.Bc6#
- 1...Qh5
- 2.Sf6#
- 2.Bf5#
- 2.Bc6#
- 1...Qh7
- 2.Sf6#
- 2.Bc6#
- 1...Qxe8
- 2.Bf5#
- 1...Qa6
- 2.Bf5#
- 1...Qb6
- 2.Bf5#
- 1...Qc6
- 2.Bf5#
- 2.Bxc6#
- 1...Qd6
- 2.Bf5#
- 1...Qf6
- 2.Sxf6#
- 1...Qh6
- 2.Bf5#
- 1...Qg7
- 2.Bf5#
- 2.Bc6#
- 1...Qg8
- 2.Sf6#
- 2.Bf5#
- 1...Qf5
- Tries
- 1.Sd6+?
- 1...Qxd6
- 2.Bf5#
- 1...cxd6!
- 1...Qxd6
- 1.Bh3?
- threat
- 2.Bg2#
- 1...Qf5
- 2.Bxf5#
- 1...Qh5
- 2.Sf6#
- 2.Bf5#
- 1...Qf6
- 2.Sxf6#
- 1...Qf7!
- threat
- 1.Bg4?
- threat
- 2.Bf3#
- 1...Qf5
- 2.Bxf5#
- 1...Qh5
- 2.Sf6#
- 2.Bf5#
- 1...Qf6
- 2.Sxf6#
- 1...Qf7!
- threat
- 1.Rf3?
- threat
- 2.Re3#
- 2.Qd3#
- 1...Qa6
- 2.Bf5#
- 2.Re3#
- 1...Qb6
- 2.Bf5#
- 2.Qd3#
- 1...Qd6
- 2.Bf5#
- 2.Re3#
- 1...Qe6
- 2.Qd3#
- 1...Bd4!
- threat
- 1.Sd6+?
- Keys
- 1.Rf6!
- threat
- 2.Bc6#
- 1...Qxe8
- 2.Bf5#
- 1...Qxf6
- 2.Sxf6#
- 1...Qf7
- 2.Bf5#
- 1...Qg8
- 2.Bf5#
- 1...c6
- 2.Sd6#
- 2.Bxc6#
- threat
- 1.Rf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- Q(e);N_GUARD,XS(D)::B(C)
- Q(e);N_GUARD::B(C)
- Q(e);N_GUARD::S(D),XQ(e)
- Tries
- Try
- S(D);CHECK
- Vars
- Q(e);XS(D)::B(C)
- Refutation
- P(f);XS(D)
- Try
- B(C);
- Threat
- B(C)
- Vars
- Q(e);N_GUARD::B(C),XQ(e)
- Q(e);N_GUARD::S(D),XQ(e)
- Refutation
- Q(e);
- Try
- B(C);
- Threat
- B(C)
- Vars
- Q(e);N_GUARD::B(C),XQ(e)
- Q(e);N_GUARD::S(D),XQ(e)
- Refutation
- Q(e);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- Q(e);::QAB1(A)
- Refutation
- B(a);
- Try
- Actual
- R(E);
- Threat
- B(C)
- Vars
- Q(e);N_GUARD,XS(D)::B(C)
- Q(e);XR(E)::S(D),XQ(e)
- Q(e);N_GUARD::B(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).