MESON Chess Problem Database
Problem Display
PID: 243542 (8/BpKB2p1/7p/3k3N/2nP3Q/1Pp5/2q4n/3N4 w - - 0 1)
Burda, Josef
idee & form, 2010
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Sxc3#
- 1...Qe4
- 2.Sxc3#
- 1...Qf5
- 2.Sxc3#
- 1...Qg6
- 2.Sxc3#
- 1...Qh7
- 2.Sxc3#
- 1...Qa2
- 2.Sxc3#
- 1...Qe2
- 2.Sxc3#
- 1...Qf2
- 2.Sxc3#
- 1...Qg2
- 2.Sxc3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Qb1
- Tries
- 1.Sxg7?
- threat
- 2.Be6#
- 1...Qe4
- 2.Sxc3#
- 1...Qf5
- 2.Sxc3#
- 1...Qg6
- 2.Sxc3#
- 1...Qe2
- 2.Sxc3#
- 1...Sg4!
- threat
- 1.Qg5+?
- 1...Ke4
- 2.Qf5#
- 1...Qf5
- 2.Sxc3#
- 1...Se5
- 2.Qxe5#
- 1...hxg5!
- 1...Ke4
- 1.Qe7?
- threat
- 2.Sf4#
- 2.Qe6#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Qe4
- 2.Sxc3#
- 2.Qc5#
- 1...Qf5
- 2.Sxc3#
- 1...Qg6
- 2.Sxc3#
- 2.Sf4#
- 1...Qc1
- 2.Qe6#
- 1...Qd2
- 2.Qe6#
- 1...Qe2
- 2.Sxc3#
- 2.Sf4#
- 1...Qf2
- 2.Sxc3#
- 2.Qe6#
- 1...g5
- 2.Sf6#
- 2.Qe6#
- 1...b6!
- threat
- 1.Qe4+?
- 1...Qxe4
- 2.Sxc3#
- 1...Kxe4!
- 1...Qxe4
- 1.Qg4?
- threat
- 2.Be6#
- 2.Qe6#
- 1...Qe4
- 2.Sxc3#
- 1...Qf5
- 2.Sxc3#
- 1...Qg6
- 2.Sxc3#
- 1...Qe2
- 2.Sxc3#
- 1...Se5
- 2.Se3#
- 2.Be6#
- 1...Sb6
- 2.Se3#
- 2.Be6#
- 1...b6
- 2.Bc6#
- 2.Be6#
- 1...Sxg4!
- threat
- 1.Sxg7?
- Keys
- 1.Qf6!
- threat
- 2.Qe6#
- 1...Ke4
- 2.Qf5#
- 1...gxf6
- 2.Sxf6#
- 1...Qe4
- 2.Sxc3#
- 1...Qf5
- 2.Sxc3#
- 1...Qg6
- 2.Sxc3#
- 1...Qe2
- 2.Sxc3#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...b6
- 2.Bc6#
- threat
- 1.Qf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 13
- Sets
- Q(a);N_GUARD::S(A),XP(c)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD::S(A),XS(d)
- P(h);N_GUARD::S(E)
- Tries
- Try
- S(E);XP(h)
- Threat
- B(H)
- Vars
- Q(a);N_GUARD::S(A),XP(c)
- Refutation
- S(b);
- Try
- Q(D);CHECK
- Vars
- K(e);S_FLIGHT::QAB1(D)
- Q(a);P_SPINQ(a)::S(A),XP(c)
- S(d);N_GUARD,P_SPINS(d)::QAR1(D),XS(d)
- Refutation
- P(f);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD::QAR1(D),XS(d)
- S(d);N_GUARD::QAR1(D)
- Q(a);N_GUARD::S(A),XP(c)
- Q(a);::QAB1(D)
- Refutation
- P(g);
- Try
- Q(D);CHECK
- Vars
- Q(a);XQ(D)::S(A),XP(c)
- Refutation
- K(e);S_FLIGHT,XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD::S(A),XP(c)
- Refutation
- S(b);XQ(D)
- Try
- Actual
- Q(D);
- Threat
- QAB1(D)
- Vars
- K(e);S_FLIGHT::QAB1(D)
- P(h);XQ(D)::S(E),XP(h)
- Q(a);N_GUARD::S(A),XP(c)
- S(d);N_GUARD::QAR1(D),XS(d)
- S(d);N_GUARD::QAR1(D)
- P(g);N_GUARD::B(H)
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).