MESON Chess Problem Database
Problem Display
PID: 157365 (B7/2b3N1/1pp1qp2/1PPk4/N1pB2p1/K1P2P2/8/6Q1 w - - 0 1)
Placanico, Pietro L
Best Problems, 2008
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Bxc6#
- 1...Qf7
- 2.Bxc6#
- 1...Qc8
- 2.Bxc6#
- 1...Qg8
- 2.Bxc6#
- 1...Qe1
- 2.Bxc6#
- 1...Qe2
- 2.Bxc6#
- 1...Qe3
- 2.Bxc6#
- 1...Qe4
- 2.Bxc6#
- 1...Qe5
- 2.Bxc6#
- 1...Qe7
- 2.Bxc6#
- 1...Bh2
- 2.Sxb6#
- 1...Bg3
- 2.Sxb6#
- 1...Bf4
- 2.Sxb6#
- 1...Be5
- 2.Sxb6#
- 1...Bd6
- 2.Sxb6#
- 2.Bxc6#
- 1...Bb8
- 2.Sxb6#
- 1...Qf5
- Tries
- 1.Bxf6?
- threat
- 2.Qd4#
- 2.Qd1#
- 1...gxf3
- 2.Qd4#
- 1...bxc5
- 2.Qxc5#
- 2.Qd1#
- 1...Qf5
- 2.Bxc6#
- 2.Qd4#
- 1...Qe1
- 2.Bxc6#
- 2.Qd4#
- 1...Qe2
- 2.Bxc6#
- 2.Qd4#
- 1...Qe3
- 2.Bxc6#
- 1...Qe4
- 2.Bxc6#
- 1...Qe5
- 2.Bxc6#
- 1...Bf4
- 2.Sxb6#
- 2.Qd4#
- 1...Be5
- 2.Sxb6#
- 1...Qxf6!
- threat
- 1.Qe3?
- threat
- 2.Qxe6#
- 1...Qxe3
- 2.Bxc6#
- 1...Qf5
- 2.Bxc6#
- 1...Qd7
- 2.Qe4#
- 1...Qf7
- 2.Bxc6#
- 2.Qe4#
- 1...Qc8
- 2.Bxc6#
- 2.Qe4#
- 1...Qg8
- 2.Bxc6#
- 2.Qe4#
- 1...Qe4
- 2.Bxc6#
- 2.Qxe4#
- 2.fxe4#
- 1...Qe5
- 2.Bxc6#
- 1...Qd6
- 2.Qe4#
- 1...Qe7
- 2.Bxc6#
- 1...Be5
- 2.Sxb6#
- 2.Qe4#
- 1...Qe8!
- threat
- 1.Qd1?
- threat
- 2.Bxf6#
- 1...Qf5
- 2.Bxc6#
- 1...Qe1
- 2.Bxc6#
- 1...Qe2
- 2.Bxc6#
- 1...Qe3
- 2.Bxc6#
- 1...Qe4
- 2.Bxc6#
- 1...Qe5
- 2.Bxc6#
- 1...Bf4
- 2.Sxb6#
- 1...Be5
- 2.Sxb6#
- 1...f5
- 2.Bf6#
- 1...gxf3!
- threat
- 1.Qe1?
- threat
- 2.Qxe6#
- 1...Qxe1
- 2.Bxc6#
- 1...Qf5
- 2.Bxc6#
- 1...Qd7
- 2.Qe4#
- 1...Qf7
- 2.Bxc6#
- 2.Qe4#
- 1...Qc8
- 2.Bxc6#
- 2.Qe4#
- 1...Qg8
- 2.Bxc6#
- 2.Qe4#
- 1...Qe2
- 2.Bxc6#
- 1...Qe3
- 2.Bxc6#
- 1...Qe4
- 2.Bxc6#
- 2.Qxe4#
- 2.fxe4#
- 1...Qe5
- 2.Bxc6#
- 1...Qd6
- 2.Qe4#
- 1...Qe7
- 2.Bxc6#
- 1...Be5
- 2.Sxb6#
- 2.Qe4#
- 1...Qe8!
- threat
- 1.Bxf6?
- Keys
- 1.Be5!
- threat
- 2.Qd4#
- 1...Kxe5
- 2.Qd4#
- 1...Qxe5
- 2.Bxc6#
- 1...Bxe5
- 2.Sxb6#
- 1...bxc5
- 2.Qxc5#
- 1...fxe5
- 2.Qd1#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 13
- Sets
- Q(f);N_GUARD::B(J),XP(e)
- Q(f);N_GUARD,P_PINP(C)::B(J),XP(e)
- Q(f);N_GUARD,P_PINP(H)::B(J),XP(e)
- B(h);N_GUARD::S(E),XP(d)
- Tries
- Try
- B(F);XP(g)
- Threat
- DUALS(2)
- Vars
- P(b);XP(D)::QAR1(A)
- Q(f);N_GUARD,P_PINP(C)::B(J),XP(e)
- Q(f);N_GUARD::B(J),XP(e)
- B(h);N_GUARD::S(E),XP(d)
- Refutation
- Q(f);XB(F)
- Try
- Q(A);
- Threat
- QAB1(A),XQ(f)
- Vars
- Q(f);N_GUARD,P_PINP(C),XQ(A)::B(J),XP(e)
- Q(f);N_GUARD::B(J),XP(e)
- Q(f);N_GUARD::QAB1(A)
- Q(f);N_GUARD,P_PINP(H)::QAB1(A)
- Q(f);N_GUARD,P_PINP(H)::B(J),XP(e)
- Refutation
- Q(f);
- Try
- Q(A);
- Threat
- QAR(A)+B(F),XP(g)
- Vars
- Q(f);N_GUARD::B(J),XP(e)
- Q(f);N_GUARD,P_PINP(C)::B(J),XP(e)
- B(h);N_GUARD::S(E),XP(d)
- P(g);::QAR(A)+B(F)
- Refutation
- P(b);XP(D)
- Try
- Q(A);
- Threat
- QAB1(A),XQ(f)
- Vars
- Q(f);N_GUARD,XQ(A)::B(J),XP(e)
- Q(f);N_GUARD::B(J),XP(e)
- Q(f);N_GUARD::QAB1(A)
- Q(f);N_GUARD,P_PINP(C)::B(J),XP(e)
- Q(f);N_GUARD,P_PINP(H)::QAB1(A)
- Q(f);N_GUARD,P_PINP(H)::B(J),XP(e)
- Refutation
- Q(f);
- Try
- Actual
- B(F);
- Threat
- QAR1(A)
- Vars
- K(c);N_SPINP(e),P-FLIGHT,XB(F)::QAB1(A)
- Q(f);N_GUARD,SBLOCK,XB(F)::B(J),XP(e)
- B(h);N_GUARD,SBLOCK,XB(F)::S(E),XP(d)
- P(d);OGATE,XP(H)::QAR1(A),XP(d)
- P(g);SBLOCK,XB(F)::QAR(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).