MESON Chess Problem Database
Problem Display
PID: 109899 (1q6/2NNn3/2pkP3/B1pP2p1/2P3K1/6b1/8/Q7 w - - 0 1)
Silvestre, A
Caissa, 1980
#2
8 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qa7
- 2.Se8#
- 1...Qb1
- 2.Se8#
- 1...Qb2
- 2.Se8#
- 1...Qb3
- 2.Se8#
- 1...Qb4
- 2.Se8#
- 1...Qb5
- 2.Se8#
- 1...Qb6
- 2.Se8#
- 1...Qb7
- 2.Se8#
- 1...Qe8
- 2.Sxe8#
- 1...Be1
- 2.Qe5#
- 1...Bf2
- 2.Qe5#
- 1...Bh4
- 2.Qe5#
- 1...Be5
- 2.Qxe5#
- 1...Qa7
- Tries
- 1.Qg1?
- threat
- 2.Qxc5#
- 2.Qxg3#
- 1...Sxd5
- 2.Qxc5#
- 1...cxd5
- 2.Qxc5#
- 1...Qb6
- 2.Se8#
- 2.Qxg3#
- 1...Sf5
- 2.Qxc5#
- 1...Sg6
- 2.Qxc5#
- 1...Sc8
- 2.Qxc5#
- 1...Sg8
- 2.Qxc5#
- 1...Qa7
- 2.Se8#
- 2.Qxg3#
- 1...Qb2
- 2.Se8#
- 2.Qxc5#
- 1...Qb3
- 2.Se8#
- 2.Qxc5#
- 1...Qb4
- 2.Se8#
- 2.Qxg3#
- 1...Qb5
- 2.Se8#
- 2.Qxg3#
- 1...Qf8
- 2.Qxc5#
- 1...Qh8
- 2.Qxc5#
- 1...Be1
- 2.Qxc5#
- 1...Bh2
- 2.Qxh2#
- 2.Qxc5#
- 1...Bf4
- 2.Qxc5#
- 1...Bh4
- 2.Qxc5#
- 1...Be5
- 2.Qxc5#
- 1...Bf2!
- threat
- 1.Qa3?
- threat
- 2.Qxc5#
- 2.Qxg3#
- 1...Sxd5
- 2.Qxc5#
- 1...cxd5
- 2.Qxc5#
- 1...Qb6
- 2.Se8#
- 2.Qxg3#
- 1...Sf5
- 2.Qxc5#
- 1...Sg6
- 2.Qxc5#
- 1...Sc8
- 2.Qxc5#
- 1...Sg8
- 2.Qxc5#
- 1...Qa7
- 2.Se8#
- 2.Qxg3#
- 1...Qb2
- 2.Se8#
- 2.Qxc5#
- 1...Qb3
- 2.Se8#
- 2.Qxc5#
- 1...Qb4
- 2.Se8#
- 2.Qxg3#
- 1...Qb5
- 2.Se8#
- 2.Qxg3#
- 1...Qf8
- 2.Qxc5#
- 1...Qh8
- 2.Qxc5#
- 1...Be1
- 2.Qxc5#
- 1...Bh2
- 2.Qxc5#
- 1...Bf4
- 2.Qxc5#
- 1...Bh4
- 2.Qxc5#
- 1...Be5
- 2.Qxc5#
- 1...Bf2!
- threat
- 1.Qg1?
- Keys
- 1.Qd4!
- threat
- 2.Qxc5#
- 1...cxd4
- 2.c5#
- 1...Qb6
- 2.Se8#
- 1...Qa7
- 2.Se8#
- 1...Qb4
- 2.Se8#
- 1...Qb5
- 2.Se8#
- 1...Bf2
- 2.Qe5#
- threat
- 1.Qd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(g);N_GUARD::S(G)
- Q(g);N_GUARD,P_PINP(B)::S(G)
- Q(g);N_GUARD::S(G),XQ(g)
- B(a);N_GUARD::QAB1(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- Tries
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(f);XP(E)::QAB1(A),XP(b)
- P(d);XP(E)::QAB1(A),XP(b)
- S(f);::QAB1(A),XP(b)
- Q(g);::QAB1(A),XP(b)
- B(a);::QAB1(A),XP(b)
- Refutation
- B(a);
- Try
- Q(A);P_PINP(b)
- Threat
- DUALS(2)
- Vars
- S(f);XP(E)::QAB1(A),XP(b)
- P(d);XP(E)::QAB1(A),XP(b)
- S(f);::QAB1(A),XP(b)
- Q(g);::QAB1(A),XP(b)
- B(a);::QAB1(A),XP(b)
- Refutation
- B(a);
- Try
- Actual
- Q(A);
- Threat
- QAB1(A),XP(b)
- Vars
- P(b);OGATE,XQ(A)::P(B)
- Q(g);N_GUARD::S(G)
- B(a);N_GUARD::QAB1(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).