MESON Chess Problem Database
Problem Display
PID: 239758 (5B2/3pK3/3P1p1N/1Q1pk1P1/2p3R1/Rb3n2/1nr2r2/1B2N3 w - - 0 1)
Armeni, Alberto
Variantim, 2009
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sf7#
- 2.Re4#
- 1...Rcd2
- 2.Sf7#
- 2.Re4#
- 1...Rce2
- 2.Sf7#
- 1...Rc3
- 2.Sf7#
- 2.Re4#
- 1...Rfd2
- 2.Sxf3#
- 1...Rfe2
- 2.Sxf3#
- 1...Rg2
- 2.Sxf3#
- 1...Rh2
- 2.Sxf3#
- 1...Ba2
- 2.Re3#
- 1...Ba4
- 2.Re3#
- 1...fxg5
- 2.Bg7#
- 1...f5
- 2.Sf7#
- 2.Bg7#
- 1...Rc1
- Tries
- 1.Ra5?
- threat
- 2.Qxd5#
- 1...Rcd2
- 2.Sf7#
- 2.Re4#
- 1...Rfd2
- 2.Sxf3#
- 1...c3!
- threat
- 1.Qxd7?
- threat
- 2.Sf7#
- 2.Qf5#
- 2.Qe6#
- 1...Sxe1
- 2.Sf7#
- 2.Qe6#
- 1...d4
- 2.Ra5#
- 2.Qb5#
- 2.Qf5#
- 2.Qe6#
- 1...Sg1
- 2.Sf7#
- 2.Qe6#
- 1...Sd2
- 2.Sf7#
- 2.Qe6#
- 1...Sh2
- 2.Sf7#
- 2.Qe6#
- 1...Sd4
- 2.Sf7#
- 1...Sh4
- 2.Sf7#
- 2.Qe6#
- 1...f5
- 2.Sf7#
- 2.Bg7#
- 2.Qxf5#
- 2.Qe6#
- 1...Sxg5!
- threat
- 1.Qc5?
- threat
- 2.Qe3#
- 1...Sxg5
- 2.Qd4#
- 1...Rce2
- 2.Sf7#
- 1...Rc3
- 2.Sf7#
- 2.Re4#
- 1...Rfe2
- 2.Sxf3#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sd1!
- threat
- 1.Qb6?
- threat
- 2.Qe3#
- 1...Sxg5
- 2.Qd4#
- 1...d4
- 2.Ra5#
- 2.Qa5#
- 2.Qc5#
- 2.Qb5#
- 1...Rce2
- 2.Sf7#
- 1...Rc3
- 2.Sf7#
- 1...Rfe2
- 2.Sxf3#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sd1!
- threat
- 1.Ra5?
- Keys
- 1.Qxc4!
- threat
- 2.Qf4#
- 1...Rxc4
- 2.Sf7#
- 1...Bxc4
- 2.Re3#
- 1...Sxc4
- 2.Sd3#
- 1...Sxe1
- 2.Qd4#
- 1...Sxg5
- 2.Qd4#
- 1...dxc4
- 2.Ra5#
- 1...fxg5
- 2.Bg7#
- 1...Sd3
- 2.Sxd3#
- 1...Sg1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sh2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sh4
- 2.Qd4#
- 1...d4
- 2.Ra5#
- threat
- 1.Qxc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 7
- Sets
- R(b);::S(H)
- R(c);N_GUARD::S(B),XS(e)
- B(d);OGATE::R(C)
- P(i);OGATEB,XP(F)::B(J)
- Tries
- Try
- R(C);
- Threat
- QAR1(E),XP(g)
- Vars
- R(c);N_GUARD::S(B),XS(e)
- Refutation
- P(f);
- Try
- Q(E);N_PINP(g),XP(j)
- Threat
- DUALS(3)
- Vars
- S(e);::S(H)
- Refutation
- S(e);XP(F)
- Try
- Q(E);
- Threat
- QAR2(E)
- Vars
- S(e);N_GUARD,XP(F)::QAB1(E)
- R(b);::S(H)
- R(c);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- Refutation
- S(a);
- Try
- Q(E);N_PINP(g)
- Threat
- QAR2(E)
- Vars
- S(e);N_GUARD,XP(F)::QAB1(E)
- R(b);::S(H)
- R(c);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- Refutation
- S(a);
- Try
- Actual
- Q(E);N_PINP(g),XP(f)
- Threat
- QAB1(E)
- Vars
- R(b);XQ(E)::S(H)
- B(d);OGATE,XQ(E)::R(C)
- S(a);N_GUARD,XQ(E)::S(B)
- S(e);N_GUARD,XS(B)::QAB1(E)
- S(e);N_GUARD,XP(F)::QAB1(E)
- P(g);OGATEB,XQ(E)::R(C)
- P(i);OGATEB,XP(F)::B(J)
- S(a);N_GUARD::S(B),XS(a)
- S(e);N_GUARD::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- P(g);OGATEB::R(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).