MESON Chess Problem Database
Problem Display
PID: 194355 (3q4/3Q4/1B2N3/1b6/8/2k1nn1R/8/1RK2B2 w - - 0 1)
Popa, Nicolae
Sachmatija, 2019
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Qg5
- 2.Ba5#
- 1...Qf6
- 2.Ba5#
- 1...Qxd7
- 2.Ba5#
- 1...Qb8
- 2.Ba5#
- 1...Qc8
- 2.Ba5#
- 1...Qe8
- 2.Ba5#
- 1...Qg8
- 2.Ba5#
- 1...Qh8
- 2.Ba5#
- 1...Sd1
- 2.Bd4#
- 1...Sg2
- 2.Bd4#
- 1...Sc4
- 2.Bd4#
- 1...Sg4
- 2.Bd4#
- 1...Sd5
- 2.Bd4#
- 1...Se1
- 2.Bd4#
- 1...Sg1
- 2.Bd4#
- 1...Sd2
- 2.Bd4#
- 1...Sh2
- 2.Bd4#
- 1...Sd4
- 2.Bxd4#
- 1...Sh4
- 2.Bd4#
- 1...Se5
- 2.Bd4#
- 1...Sg5
- 2.Bd4#
- 1...Qg5
- Tries
- 1.Bxb5?
- 1...Qxb6
- 2.Qd3#
- 1...Qxd7
- 2.Ba5#
- 1...Qh4
- 2.Qd3#
- 1...Qg5
- 2.Ba5#
- 2.Qd3#
- 1...Qf6
- 2.Ba5#
- 2.Qd3#
- 1...Qc7
- 2.Qd3#
- 1...Qe7
- 2.Qd3#
- 1...Qa8
- 2.Qd3#
- 1...Qb8
- 2.Ba5#
- 2.Qd3#
- 1...Qc8
- 2.Ba5#
- 2.Qd3#
- 1...Qe8
- 2.Ba5#
- 2.Qd3#
- 1...Qf8
- 2.Qd3#
- 1...Qg8
- 2.Ba5#
- 2.Qd3#
- 1...Qh8
- 2.Ba5#
- 2.Qd3#
- 1...Sd1
- 2.Bd4#
- 2.Qc6#
- 1...Sf1
- 2.Bd4#
- 2.Qc6#
- 1...Sc2
- 2.Qc6#
- 1...Sg2
- 2.Bd4#
- 2.Qc6#
- 1...Sg4
- 2.Bd4#
- 2.Qc6#
- 1...Sd5
- 2.Bd4#
- 2.Qc6#
- 1...Sf5
- 2.Qc6#
- 1...Se1
- 2.Bd4#
- 2.Qc6#
- 1...Sg1
- 2.Bd4#
- 2.Rxe3#
- 2.Qc6#
- 1...Sd2
- 2.Bd4#
- 2.Rxe3#
- 1...Sh2
- 2.Bd4#
- 2.Rxe3#
- 2.Qc6#
- 1...Sd4
- 2.Bxd4#
- 2.Rxe3#
- 1...Sh4
- 2.Bd4#
- 2.Rxe3#
- 2.Qc6#
- 1...Se5
- 2.Bd4#
- 1...Sg5
- 2.Bd4#
- 2.Rxe3#
- 2.Qc6#
- 1...Sc4!
- 1...Qxb6
- 1.Rxb5?
- 1...Qxb6
- 2.Qd3#
- 1...Qxd7
- 2.Ba5#
- 1...Qh4
- 2.Qd3#
- 1...Qg5
- 2.Ba5#
- 2.Qd3#
- 1...Qf6
- 2.Ba5#
- 2.Qd3#
- 1...Qc7
- 2.Qd3#
- 1...Qe7
- 2.Qd3#
- 1...Qa8
- 2.Qd3#
- 1...Qb8
- 2.Ba5#
- 2.Qd3#
- 1...Qc8
- 2.Ba5#
- 2.Qd3#
- 1...Qe8
- 2.Ba5#
- 2.Qd3#
- 1...Qf8
- 2.Qd3#
- 1...Qg8
- 2.Ba5#
- 2.Qd3#
- 1...Qh8
- 2.Ba5#
- 2.Qd3#
- 1...Sd1
- 2.Bd4#
- 2.Qc6#
- 1...Sc2
- 2.Qc6#
- 1...Sg2
- 2.Bd4#
- 2.Qc6#
- 1...Sc4
- 2.Bd4#
- 1...Sg4
- 2.Bd4#
- 2.Qc6#
- 1...Sd5
- 2.Bd4#
- 2.Qc6#
- 1...Sf5
- 2.Qc6#
- 1...Se1
- 2.Bd4#
- 2.Qc6#
- 1...Sg1
- 2.Bd4#
- 2.Rxe3#
- 2.Qc6#
- 1...Sd2
- 2.Bd4#
- 2.Rxe3#
- 1...Sh2
- 2.Bd4#
- 2.Rxe3#
- 2.Qc6#
- 1...Sd4
- 2.Bxd4#
- 2.Rxe3#
- 1...Sh4
- 2.Bd4#
- 2.Rxe3#
- 2.Qc6#
- 1...Se5
- 2.Bd4#
- 1...Sg5
- 2.Bd4#
- 2.Rxe3#
- 2.Qc6#
- 1...Sxf1!
- 1...Qxb6
- 1.Qc7+?
- 1...Bc4
- 2.Ba5#
- 1...Bc6
- 2.Ba5#
- 1...Sc4
- 2.Ba5#
- 1...Qxc7!
- 1...Bc4
- 1.Bxb5?
- Keys
- 1.Qd5!
- threat
- 2.Rb3#
- 2.Qb3#
- 1...Qxd5
- 2.Ba5#
- 1...Sxd5
- 2.Bd4#
- 1...Bc4
- 2.Qa5#
- 1...Ba4
- 2.Qa5#
- 1...Sc4
- 2.Bd4#
- 1...Sd2
- 2.Bd4#
- 1...Sd4
- 2.Bxd4#
- threat
- 1.Qd5!
This is a version of 163550
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 17
- Sets
- Q(e);N_GUARD::B(E)
- Q(e);N_GUARD,XQ(G)::B(E)
- S(b);P_SPINS(c)::B(E)
- S(c);N_GUARD,P_SPINS(b)::B(E)
- S(c);N_GUARD,P_SPINS(b)::B(E),XS(c)
- Tries
- Try
- B(C);XB(d)
- Vars
- Q(e);N_GUARD,XB(E)::QAR1(G)
- Q(e);N_GUARD,XQ(G)::B(E)
- Q(e);N_GUARD::QAR1(G)
- S(b);N_GUARD,P_SPINS(c)::QAR(G)
- S(c);N_GUARD,P_SPINS(b)::B(E)
- Refutation
- S(b);P_SPINS(c)
- Try
- R(A);XB(d)
- Vars
- Q(e);N_GUARD,XB(E)::QAR1(G)
- Q(e);N_GUARD,XQ(G)::B(E)
- Q(e);N_GUARD::QAR1(G)
- S(b);N_GUARD,P_SPINS(c)::QAR(G)
- S(b);P_SPINS(c)::B(E)
- S(c);N_GUARD,P_SPINS(b)::B(E)
- Refutation
- S(b);P_SPINS(c),XB(C)
- Try
- Q(G);CHECK
- Vars
- B(d);P_SPINB(d)::B(E)
- S(b);P_SPINS(c)::B(E)
- Refutation
- Q(e);XQ(G)
- Try
- Actual
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(e);N_GUARD,XQ(G)::B(E)
- S(b);P_SPINS(c),XQ(G)::B(E)
- B(d);OGATE::QAB(G)
- S(b);P_SPINS(c)::B(E)
- S(c);N_GUARD,P_SPINS(b)::B(E)
- S(c);N_GUARD,P_SPINS(b)::B(E),XS(c)
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).