MESON Chess Problem Database
Problem Display
PID: 21854 (8/8/8/Q1b5/1Pr1p3/ppB1P3/6p1/RK1k2N1 w - - 0 1)
Nield, Joshua
Hull Times, 1921
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxe3
- 2.Qh5#
- 1...Bxb4
- 2.Qh5#
- 1...Bd4
- 2.Qh5#
- 1...Bb6
- 2.Qh5#
- 1...Bd6
- 2.Qh5#
- 1...Ba7
- 2.Qh5#
- 1...Be7
- 2.Qh5#
- 1...Bf8
- 2.Qh5#
- 1...a2+
- 2.Kb2#
- 1...b2
- 2.Qa4#
- 1...Bxe3
- Tries
- 1.Qxa3?
- threat
- 2.Kb2#
- 2.Qc1#
- 2.Qxb3#
- 1...Rxb4
- 2.Kb2#
- 2.Qc1#
- 1...Bxe3
- 2.Qxb3#
- 1...b2
- 2.Kxb2#
- 2.Qb3#
- 2.Qa4#
- 1...Rxc3!
- threat
- 1.Qxa3?
- Keys
- 1.Qb5!
- 1...a2+
- 2.Kb2#
- 1...Rxc3
- 2.Qe2#
- 1...Rxb4
- 2.Qe2#
- 1...Bxe3
- 2.Qh5#
- 1...Bxb4
- 2.Qh5#
- 1...Rd4
- 2.Qe2#
- 1...Bd4
- 2.Qh5#
- 1...Bb6
- 2.Qh5#
- 1...Bd6
- 2.Qh5#
- 1...Ba7
- 2.Qh5#
- 1...Be7
- 2.Qh5#
- 1...Bf8
- 2.Qh5#
- 1...b2
- 2.Qa4#
- 1...a2+
- 1.Qb5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(g);OGATE,XP(E)::QAB(G)
- B(g);OGATE,XP(F)::QAB(G)
- B(g);OGATE::QAB(G)
- P(c);CHECK::R(A)+K(B)
- P(d);OGATEB::QAB(G)
- Tries
- Try
- Q(G);XP(c)
- Threat
- DUALS(3)
- Vars
- B(g);XP(E)::QAB(G),XP(d)
- Refutation
- R(e);XB(D)
- Try
- Actual
- Q(G);
- Vars
- P(c);CHECK::R(A)+K(B)
- R(e);OGATE,XB(D)::QAB1(G)
- R(e);OGATE,XP(F)::QAB1(G)
- B(g);OGATE,XP(E)::QAB(G)
- B(g);OGATE,XP(F)::QAB(G)
- R(e);OGATE::QAB1(G)
- B(g);OGATE::QAB(G)
- P(d);OGATEB::QAB(G)
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).