MESON Chess Problem Database

Problem Display
PID: 51426 (8/1Np5/1n1QN3/R2p1pP1/4kBn1/1p2b3/5pK1/5B2 w - - 0 1)

Morra, Juan Carlos

The Guardian, 1960

8/1Np5/1n1QN3/R2p1pP1/4kBn1/1p2b3/5pK1/5B2

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sbc5#
    • 1...Bd2
      • 2.Sbc5#
    • 1...Bxf4
      • 2.Qxf4#
    • 1...Bc5
      • 2.Sbxc5#
    • 1...Sh2
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sf6
      • 2.Qe5#
    • 1...Sh6
      • 2.Qe5#
    • 1...Sa4
      • 2.Qxd5#
    • 1...Sc4
      • 2.Qxd5#
    • 1...Sd7
      • 2.Qxd5#
    • 1...Sa8
      • 2.Qxd5#
    • 1...Sc8
      • 2.Qxd5#
    • 1...d4
      • 2.Sec5#
      • 2.Sbc5#
    • 1...cxd6
      • 2.Sxd6#
  • Keys
    • 1.Qc5!
      • 1...Bxf4
        • 2.Qd4#
      • 1...Bxc5
        • 2.Sbxc5#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bc1
        • 2.Qd4#
      • 1...Bd2
        • 2.Qd4#
      • 1...Sh2
        • 2.Qxe3#
      • 1...Se5
        • 2.Qxe3#
      • 1...Sf6
        • 2.Qxe3#
      • 1...Sh6
        • 2.Qxe3#
      • 1...Sa4
        • 2.Qxd5#
      • 1...Sc4
        • 2.Qxd5#
      • 1...Sd7
        • 2.Qxd5#
      • 1...Sa8
        • 2.Qxd5#
      • 1...Sc8
        • 2.Qxd5#
      • 1...b2
        • 2.Qc2#
      • 1...d4
        • 2.Qxf5#
      • 1...c6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 7
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(c);N_GUARD::S(H)
    • B(c);OGATE,XB(C)::QAR1(F),XB(c)
    • B(c);N_GUARD::S(H),XB(c)
    • S(e);N_GUARD::QAR1(F)
    • S(e);N_GUARD::QAR1(F),XS(e)
    • S(h);N_GUARD::QAB1(F),XP(f)
    • P(i);XQ(F)::S(H),XP(i)
  • Actual
    • Q(F);
    • Vars
      • B(c);N_GUARD,XB(C)::QAR1(F)
      • B(c);XQ(F)::S(H),XB(c)
      • B(c);N_GUARD::QAR1(F),XB(c)
      • B(c);N_GUARD::QAR1(F)
      • S(e);N_GUARD::QAR1(F),XB(c)
      • S(h);N_GUARD::QAB1(F),XP(f)
      • P(b);N_GUARD::QAB(F)
      • P(f);OGATE::QAB1(F),XP(g)
      • P(i);N_GUARD::S(H)
HTML5 logo

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).