MESON Chess Problem Database
Problem Display
PID: 8206 (8/n7/Q7/1pPppp1N/1p2k2p/4p1q1/4B1p1/1K1R2N1 w - - 0 1)
van Dijk, Nils Gustav Gerard
The Problemist, 1995
#2
7 + 11
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Bf3#
- 1...Qh2
- 2.Bf3#
- 1...Qf4
- 2.Sf6#
- 1...Qf3
- 2.Bxf3#
- 1...Qg5
- 2.Bf3#
- 1...Qg6
- 2.Bf3#
- 1...Qg7
- 2.Bf3#
- 1...Qg8
- 2.Bf3#
- 1...Qe1
- Tries
- 1.Qa2?
- threat
- 2.Qxd5#
- 2.Qc2#
- 1...f4
- 2.Qc2#
- 1...Qg8
- 2.Bf3#
- 2.Qc2#
- 1...d4
- 2.Bd3#
- 1...b3!
- threat
- 1.Qd6?
- threat
- 2.Qxd5#
- 1...Qg8
- 2.Bf3#
- 1...d4
- 2.Bd3#
- 1...f4!
- threat
- 1.Qh6?
- threat
- 2.Sf6#
- 1...Qg5
- 2.Bf3#
- 1...Qg6
- 2.Bf3#
- 1...Qg7
- 2.Bf3#
- 1...f4!
- threat
- 1.Qa2?
- Keys
- 1.Qe6!
- threat
- 2.Qxd5#
- 1...Qg8
- 2.Bf3#
- 1...d4
- 2.Bd3#
- 1...f4
- 2.Sf6#
- threat
- 1.Qe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- Q(c);N_GUARD,P_PINR(B)::B(D)
- Q(c);N_GUARD::B(D)
- Q(c);SBLOCK::S(F)
- Q(c);N_GUARD::B(D),XQ(c)
- Tries
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- P(j);::QAB(G)
- P(h);SBLOCK::B(D)
- Refutation
- P(d);
- Try
- Q(G);
- Threat
- QAB1(G),XP(h)
- Vars
- Q(c);N_GUARD::B(D)
- P(h);::B(D)
- Refutation
- P(j);
- Try
- Q(G);
- Threat
- S(F)
- Vars
- Q(c);N_GUARD::B(D)
- Refutation
- P(j);
- Try
- Actual
- Q(G);P_PINP(i)
- Threat
- QAB1(G),XP(h)
- Vars
- Q(c);N_GUARD::B(D)
- P(h);SBLOCK::B(D)
- P(j);SBLOCK::S(F)
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).