MESON Chess Problem Database
Problem Display
PID: 180580 (8/1BB2p2/4q1NQ/n7/2PkN1p1/2RppP2/2R5/6K1 w - - 0 1)
Popa, Nicolae
Sachmatija, 2016
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Qxc4
- 2.Be5#
- 1...Qd7
- 2.Be5#
- 2.Bb6#
- 1...Qc8
- 2.Be5#
- 1...Qxe4
- 2.Bb6#
- 1...Qe5
- 2.Bxe5#
- 1...Qa6
- 2.Be5#
- 1...Qb6
- 2.Be5#
- 2.Bxb6#
- 1...Qc6
- 2.Be5#
- 1...Qe8
- 2.Bb6#
- 1...Sc6
- 2.Bb6#
- 1...dxc2
- 2.Qxe3#
- 1...d2
- 2.Qxe3#
- 1...Qxc4
- Tries
- 1.Qg7+?
- 1...Qe5
- 2.Bxe5#
- 2.Bb6#
- 2.Qxe5#
- 1...Qf6
- 2.Bb6#
- 2.Qxf6#
- 1...f6!
- 1...Qe5
- 1.Qh8+?
- 1...Qe5
- 2.Bxe5#
- 2.Bb6#
- 2.Qxe5#
- 1...Qf6
- 2.Bb6#
- 2.Qxf6#
- 1...f6!
- 1...Qe5
- 1.Qg7+?
- Keys
- 1.Sf4!
- threat
- 2.Rxd3#
- 1...Qxc4
- 2.Qf6#
- 1...Qxe4
- 2.Qb6#
- 1...dxc2
- 2.Se2#
- 1...Qd6
- 2.Qxd6#
- 1...d2
- 2.Se2#
- 2.Rd3#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(f);N_GUARD,XP(E)::B(J)
- Q(f);N_GUARD::B(J)
- Q(f);N_GUARD,XS(F)::B(J)
- Q(f);N_GUARD::B(J),XQ(f)
- S(e);S_CUTQ(f)::B(J)
- P(a);XR(B)::QAB1(H),XP(b)
- P(a);::QAB1(H),XP(b)
- Tries
- Try
- Q(H);CHECK
- Refutation
- P(g);P_SPINP(g)
- Try
- Q(H);CHECK
- Refutation
- P(g);P_SPINP(g)
- Try
- Actual
- S(G);
- Threat
- R1(C),XP(a)
- Vars
- Q(f);N_GUARD,XP(E)::QAB(H)
- Q(f);OGATE,XS(F)::QAB(H)
- P(a);N_GUARD,XR(B)::S(G)
- Q(f);OGATE::QAR2(H),XQ(f)
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).