MESON Chess Problem Database
Problem Display
PID: 7267 (8/1RBq2b1/K1k1P3/2p3Q1/2P3N1/2n3p1/2B3P1/8 w - - 0 1)
Promyshlyansky, GA
Mat a dva khoda, 1999
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Be5
- 2.Sxe5#
- 1...Bh6
- 2.Se5#
- 1...Bf8
- 2.Se5#
- 1...Sb1
- 2.Ba4#
- 1...Sd1
- 2.Ba4#
- 1...Sa2
- 2.Ba4#
- 1...Se2
- 2.Ba4#
- 1...Sa4
- 2.Bxa4#
- 1...Se4
- 2.Ba4#
- 1...Sb5
- 2.cxb5#
- 1...Sd5
- 2.Ba4#
- 1...Be5
- Tries
- 1.Ba4+?
- 1...Sb5
- 2.Bxb5#
- 2.cxb5#
- 1...Sxa4!
- 1...Sb5
- 1.Qf4?
- threat
- 2.Rb6#
- 1...Qxc7
- 2.Rxc7#
- 2.Qxc7#
- 1...Qc8
- 2.Qd6#
- 1...Qd6
- 2.Qxd6#
- 1...Be5
- 2.Sxe5#
- 1...Sa4
- 2.Bxa4#
- 1...Sd5
- 2.Ba4#
- 1...Qxe6!
- threat
- 1.Qe7?
- threat
- 2.Qxd7#
- 1...Qxe6
- 2.Rb6#
- 2.Qxe6#
- 1...Qxc7
- 2.Rxc7#
- 2.Qxc7#
- 1...Qc8
- 2.Qd6#
- 1...Qe8
- 2.Rb6#
- 2.Qd6#
- 2.Qxe8#
- 1...Qd1
- 2.Rb6#
- 1...Qd2
- 2.Rb6#
- 1...Qd3
- 2.Rb6#
- 1...Qd4
- 2.Rb6#
- 1...Qd5
- 2.Rb6#
- 1...Qd6
- 2.Rb6#
- 2.Qxd6#
- 1...Qd8
- 2.Rb6#
- 1...Qxe7!
- threat
- 1.Qd8?
- threat
- 2.Rb6#
- 2.Qxd7#
- 1...Qxe6
- 2.Rb6#
- 1...Qxc7
- 2.Rxc7#
- 2.Qxc7#
- 1...Qc8
- 2.Qd6#
- 1...Qe8
- 2.Rb6#
- 2.Qd6#
- 2.Qxe8#
- 1...Qd1
- 2.Rb6#
- 1...Qd2
- 2.Rb6#
- 1...Qd3
- 2.Rb6#
- 1...Qd4
- 2.Rb6#
- 1...Qd5
- 2.Rb6#
- 1...Qd6
- 2.Rb6#
- 2.Qxd6#
- 1...Qe7
- 2.Rb6#
- 1...Qf7
- 2.Rb6#
- 2.Qd6#
- 1...Sa4
- 2.Bxa4#
- 2.Qxd7#
- 1...Sd5
- 2.Ba4#
- 2.Qxd7#
- 1...Qxd8!
- threat
- 1.Qd5+?
- 1...Sxd5
- 2.Ba4#
- 1...Qxd5!
- 1...Sxd5
- 1.Qxg7?
- threat
- 2.Se5#
- 2.Qxd7#
- 1...Qxe6
- 2.Rb6#
- 1...Qxc7
- 2.Qxc7#
- 1...Qc8
- 2.Se5#
- 1...Qe8
- 2.Se5#
- 2.Rb6#
- 1...Qd1
- 2.Se5#
- 2.Rb6#
- 1...Qd2
- 2.Se5#
- 2.Rb6#
- 1...Qd3
- 2.Se5#
- 2.Rb6#
- 1...Qd4
- 2.Rb6#
- 1...Qd5
- 2.Rb6#
- 1...Qd6
- 2.Rb6#
- 1...Qe7
- 2.Se5#
- 1...Qf7
- 2.Se5#
- 1...Qd8
- 2.Se5#
- 2.Rb6#
- 1...Qxg7!
- threat
- 1.Ba4+?
- Keys
- 1.Qe5!
- threat
- 2.Rb6#
- 1...Qxe6
- 2.Qxe6#
- 1...Qxc7
- 2.Rxc7#
- 2.Qxc7#
- 1...Bxe5
- 2.Sxe5#
- 1...Qc8
- 2.Qd6#
- 1...Qd6
- 2.Qxd6#
- 1...Sa4
- 2.Bxa4#
- 1...Sd5
- 2.Ba4#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- B(f);N_GUARD::S(D),XB(f)
- B(f);N_GUARD::S(D)
- S(a);N_GUARD::B(A)
- S(a);N_GUARD::B(A),XS(a)
- S(a);OGATE::P(C),XS(a)
- Tries
- Try
- B(A);CHECK
- Refutation
- S(a);XB(A)
- Try
- Q(E);
- Threat
- R1(H)
- Vars
- Q(e);N_GUARD,P_PINR(H)::QAR1(E)
- Q(e);N_GUARD::QAR1(E),XQ(e)
- B(f);N_GUARD::S(D),XB(f)
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- Refutation
- Q(e);XP(G)
- Try
- Q(E);
- Threat
- QAB1(E),XQ(e)
- Vars
- Q(e);N_GUARD,P_PINR(H)::QAR1(E)
- Q(e);::R1(H)
- Q(e);P_PINP(C)::R1(H)
- Refutation
- Q(e);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- Q(e);XP(G)::R1(H)
- Q(e);OGATE,P_PINR(H)::QAR1(E)
- Q(e);::R1(H)
- Q(e);P_PINP(C)::R1(H)
- Refutation
- Q(e);XQ(E)
- Try
- Q(E);CHECK
- Vars
- S(a);XQ(E)::B(A)
- Refutation
- Q(e);XQ(E)
- Try
- Q(E);XB(f)
- Threat
- DUALS(2)
- Vars
- Q(e);XP(G)::R1(H)
- Q(e);OGATE,XB(I)::QAR1(E),XQ(e)
- Q(e);P_PINR(H)::S(D)
- Q(e);::R1(H)
- Q(e);::S(D)
- Refutation
- Q(e);XQ(E)
- Try
- Actual
- Q(E);
- Threat
- R1(H)
- Vars
- Q(e);OGATE,XP(G)::QAR2(E),XQ(e)
- B(f);XQ(E)::S(D),XB(f)
- Q(e);N_GUARD,P_PINR(H)::QAR1(E)
- Q(e);N_GUARD::QAR1(E),XQ(e)
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(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).