MESON Chess Problem Database

Problem Display
PID: 53949 (K7/8/3N4/R3p3/3k1n1Q/pP6/2Ppp2p/2BN3n w - - 0 1)

Projector, Murray

The Chess Review, 1935

K7/8/3N4/R3p3/3k1n1Q/pP6/2Ppp2p/2BN3n

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Qxf2#
    • 1...a2
      • 2.Bb2#
    • 1...e4
      • 2.Sf5#
      • 2.Qf6#
      • 2.Qh8#
  • Tries
    • 1.Qxf4+?
      • 1...e4
        • 2.Sf5#
        • 2.Qxd2#
        • 2.Qe3#
        • 2.Qe5#
        • 2.Qxe4#
        • 2.Qf6#
      • 1...exf4!
  • Keys
    • 1.Qe1!
      • 1...dxc1Q
        • 2.Qc3#
        • 2.Qb4#
      • 1...dxc1S
        • 2.Qc3#
        • 2.Qb4#
      • 1...dxc1B
        • 2.Qc3#
        • 2.Qb4#
      • 1...dxc1R
        • 2.Qc3#
        • 2.Qb4#
      • 1...dxe1Q
        • 2.Be3#
      • 1...dxe1S
        • 2.Be3#
      • 1...dxe1B
        • 2.Be3#
      • 1...dxe1R
        • 2.Be3#
      • 1...exd1Q
        • 2.Qxe5#
      • 1...exd1S
        • 2.Qxe5#
      • 1...exd1B
        • 2.Qxe5#
      • 1...exd1R
        • 2.Qxe5#
      • 1...Sf2
        • 2.Qxf2#
      • 1...Sg3
        • 2.Qf2#
      • 1...Sg2
        • 2.Qxd2#
      • 1...Sd3
        • 2.c3#
      • 1...Sh3
        • 2.Qxd2#
      • 1...Sd5
        • 2.Qxd2#
      • 1...Sh5
        • 2.Qxd2#
      • 1...Se6
        • 2.Qxd2#
      • 1...Sg6
        • 2.Qxd2#
      • 1...a2
        • 2.Bb2#
      • 1...e4
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 17
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB(E),XS(a)
    • P(e);N_GUARD::B(A)
  • Tries
    • Try
      • Q(E);CHECK,XS(g)
      • Refutation
        • P(h);XQ(E)
  • Actual
    • Q(E);N_PINS(g)
    • Vars
      • P(b);OGATE,XQ(E)::B(A)
      • P(c);OGATE,XS(B)::QAB1(E),XP(h)
      • S(a);N_GUARD::QAB(E),XS(a)
      • S(a);N_GUARD::QAB(E)
      • S(g);N_GUARD::QAR2(E),XP(b)
      • S(g);SBLOCK::P(C)
      • P(e);N_GUARD::B(A)
      • P(h);SBLOCK::S(G)
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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).