MESON Chess Problem Database

Problem Display
PID: 248611 (8/6p1/2Q5/3N1kp1/3P3P/1K3NrP/1pPp1RpB/1B1q4 w - - 0 1)

Malpas, Louis

British Chess Magazine, 1932

8/6p1/2Q5/3N1kp1/3P3P/1K3NrP/1pPp1RpB/1B1q4

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qe6#
    • 1...Qxc2+
      • 2.Bxc2#
    • 1...Qxf3+
      • 2.c3#
    • 1...Rxf3+
      • 2.Se3#
    • 1...Rxh3
      • 2.Se3#
    • 1...Rg4
      • 2.Se3#
      • 2.Se7#
  • Tries
    • 1.Qd7+?
      • 1...Ke4
        • 2.Qe6#
      • 1...Kg6!
    • 1.Qf6+?
      • 1...Ke4
        • 2.Qe5#
        • 2.Qe6#
      • 1...gxf6!
    • 1.Qc8+?
      • 1...Ke4
        • 2.Qe6#
      • 1...Kg6!
  • Keys
    • 1.h5!
      • threat
        • 2.Qg6#
      • 1...Qxc2+
        • 2.Bxc2#
      • 1...Qxf3+
        • 2.c3#
      • 1...Rxf3+
        • 2.Se3#
      • 1...Ke4
        • 2.Qe6#
      • 1...Rxh3
        • 2.Se3#
      • 1...g6
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(f);S_FLIGHT::QAR2(K)
    • Q(a);CHECK,OGATE,P_SPINQ(a),XP(B)::B(A),XQ(a)
    • Q(a);CHECK,N_PINP(B),P_SPINQ(a),XS(F)::B(A)+P(B)
    • R(e);CHECK,P_SPINR(e),XS(F)::S(J)
    • R(e);XP(G)::S(J)
  • Tries
    • Try
      • Q(K);CHECK
      • Vars
        • K(f);S_FLIGHT::QAR2(K)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(K);CHECK
      • Refutation
        • P(h);XQ(K)
    • Try
      • Q(K);CHECK
      • Vars
        • K(f);S_FLIGHT::QAR2(K)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • P(I);
    • Threat
      • QAB1(K)
    • Vars
      • Q(a);CHECK,OGATE,P_SPINQ(a),XP(B)::B(A),XQ(a)
      • Q(a);CHECK,N_PINP(B),P_SPINQ(a),XS(F)::B(A)+P(B)
      • R(e);CHECK,P_SPINR(e),XS(F)::S(J)
      • K(f);S_FLIGHT::QAR2(K)
      • R(e);XP(G)::S(J)
      • P(h);::QAB1(K),XP(h)
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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).