MESON Chess Problem Database
Problem Display
PID: 214508 (7B/qN5n/7b/1P1k1P1N/3p1p2/2pK2n1/8/2Q5 w - - 0 1)
Norton, Frank
Brownson's Chess Journal, 1877
#2
7 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bf8
- 2.Sxf4#
- 1...Sg5
- 2.Sxf4#
- 1...Bf8
- Tries
- 1.Qe1?
- threat
- 2.Qe5#
- 2.Qe6#
- 1...Qxb7
- 2.Qe5#
- 1...Sxf5
- 2.Qe4#
- 2.Qe5#
- 1...Qb6
- 2.Qe5#
- 1...Qb8
- 2.Qe6#
- 1...Qa6
- 2.Qe5#
- 1...Bg7
- 2.Sxf4#
- 2.Qe6#
- 1...Se4
- 2.Qxe4#
- 1...Sg5
- 2.Sxf4#
- 2.Sf6#
- 2.Qe5#
- 1...Sf6
- 2.Sxf6#
- 2.Qe6#
- 1...Sf8
- 2.Sf6#
- 2.Qe5#
- 1...Se2!
- threat
- 1.Qe1?
- Keys
- 1.Qxf4!
- threat
- 2.Qe5#
- 2.Qd6#
- 1...Qxb7
- 2.Qe5#
- 2.Qxd4#
- 1...Bxf4
- 2.Sxf4#
- 1...Sxf5
- 2.Qe5#
- 2.Qe4#
- 2.Qxf5#
- 1...Qc5
- 2.Qe5#
- 1...Qb6
- 2.Qe5#
- 1...Qb8
- 2.Qxd4#
- 1...Qa3
- 2.Qe5#
- 2.Qxd4#
- 1...Qa6
- 2.Qe5#
- 2.Qxd4#
- 1...Bg7
- 2.Qd6#
- 1...Bf8
- 2.Qe5#
- 1...Se4
- 2.Qe5#
- 2.Qxe4#
- 1...Sf6
- 2.Sxf6#
- 2.Qd6#
- threat
- 1.Qxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- B(f);N_GUARD::S(E),XP(d)
- S(h);S_CUTB(f)::S(E),XP(d)
- Tries
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(g);XS(F)::QAR1(A)
- Q(g);::QAR1(A)
- Q(g);::QAB1(A)
- Q(g);P_PINP(C)::QAR1(A)
- S(b);N_GUARD::QAB1(A),XS(b)
- Refutation
- S(b);
- Try
- Actual
- Q(A);XP(d)
- Threat
- DUALS(2)
- Vars
- B(f);XQ(A)::S(E),XB(f)
- Q(g);::QAR1(A)
- Q(g);N_GUARD::QAR1(A),XP(c)
- B(f);::QAR1(A)
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).