MESON Chess Problem Database

Problem Display
PID: 49569 (Q7/p2pp3/3kN2p/5p2/1rPN1Kp1/1n2n1B1/6p1/6b1 w - - 0 1)

Gold, Samuel

Source?, 0000

Q7/p2pp3/3kN2p/5p2/1rPN1Kp1/1n2n1B1/6p1/6b1

#2

6 + 12

5166 200 Schachaufgaben 1883

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Qb8#
    • 1...Rb8
      • 2.Qxb8#
    • 1...Sa1
      • 2.c5#
    • 1...Sc1
      • 2.c5#
    • 1...Sd2
      • 2.c5#
    • 1...Sa5
      • 2.c5#
    • 1...Sd1
      • 2.Kxf5#
      • 2.Qd5#
    • 1...Sf1
      • 2.Qd5#
    • 1...Sc2
      • 2.Kxf5#
      • 2.Qd5#
    • 1...Sd5+
      • 2.Qxd5#
    • 1...dxe6
      • 2.Qc6#
  • Tries
    • 1.Sxf5+?
      • 1...Sxf5
        • 2.Kxf5#
        • 2.Qd5#
      • 1...Kxe6!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qe5#
      • 1...Sd5+
        • 2.Qxd5#
      • 1...Sxd4
        • 2.c5#
      • 1...Sxc4
        • 2.Sxf5#
      • 1...fxe4
        • 2.Kxe4#
      • 1...dxe6
        • 2.Qc6#
      • 1...Rb5
        • 2.Sxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(e);N_GUARD::QAB(F)
    • R(e);N_GUARD::QAB(F),XR(e)
    • S(c);N_GUARD::P(B)
    • S(d);N_GUARD::QAR1(F)
    • S(d);CHECK,N_GUARD::QAR1(F),XS(d)
    • P(k);N_GUARD,XS(E)::QAR1(F)
  • Tries
    • Try
      • S(C);CHECK,P_SPINP(B),XP(g)
      • Refutation
        • K(h);P-FLIGHT,XS(E)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F)
    • Vars
      • S(d);CHECK,N_GUARD::QAR1(F),XS(d)
      • S(c);N_GUARD,XS(C)::P(B)
      • S(d);N_GUARD,XP(B)::S(C),XP(g)
      • P(g);XQ(F)::B(A)+K(D),XP(g)
      • P(k);N_GUARD,XS(E)::QAR1(F)
      • R(e);N_GUARD::S(C),XR(e)
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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).