MESON Chess Problem Database

Problem Display
PID: 245195 (1K6/8/1ppkPP2/3q3R/Pb3PQ1/4N3/B3R3/6B1 w - - 0 1)

Segers, Marcel

Schackvarlden, 1932

1K6/8/1ppkPP2/3q3R/Pb3PQ1/4N3/B3R3/6B1

#2

11 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Sc4#
    • 1...Qh1
      • 2.Sc4#
      • 2.Sf5#
    • 1...Qg2
      • 2.Sc4#
      • 2.Sf5#
    • 1...Qf3
      • 2.Sc4#
      • 2.Sf5#
    • 1...Qc4
      • 2.Sxc4#
    • 1...Qxe6
      • 2.Qxe6#
    • 1...Qd1
      • 2.Sc4#
      • 2.Sf5#
    • 1...Qd2
      • 2.Sc4#
      • 2.Sf5#
    • 1...Qa5
      • 2.Sc4#
    • 1...Qf5
      • 2.Sxf5#
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qe7#
      • 1...Kc5
        • 2.Sc4#
      • 1...Kxe6
        • 2.Sf5#
      • 1...Qxe6
        • 2.Qc7#
      • 1...c5
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • K(e);P_SPINQ(b),S_FLIGHT::B(A)+S(D)
    • Q(b);N_GUARD::S(D),XQ(b)
    • Q(b);OGATE,XP(I)::QAR1(G),XQ(b)
    • Q(b);N_GUARD::S(D)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • K(e);P_SPINQ(b),S_FLIGHT::B(A)+S(D)
      • K(e);P-FLIGHT,P_SPINQ(b),XP(I)::R(C)+S(D)
      • Q(b);XP(I)::QAB1(G)
      • P(d);SBLOCK::QAR1(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).