MESON Chess Problem Database

Problem Display
PID: 62465 (6K1/8/5NQ1/4pp2/4P2B/3P1rP1/5kp1/3R2N1 w - - 0 1)

Kouwenhoven, JT

Tijdschrift vd NSB, 1896

6K1/8/5NQ1/4pp2/4P2B/3P1rP1/5kp1/3R2N1

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg3
      • 2.Qxg3#
    • 1...fxe4
      • 2.Sg4#
    • 1...f4
      • 2.Sg4#
  • Tries
    • 1.Qxf5?
      • threat
        • 2.Sg4#
        • 2.Qxf3#
      • 1...Rxf5
        • 2.Sg4#
      • 1...Rf4
        • 2.Sg4#
      • 1...Ke3!
  • Keys
    • 1.Qf7!
      • 1...Rxg3+
        • 2.Sg4#
      • 1...Ke3
        • 2.Qa7#
      • 1...Rxd3
        • 2.Sg4#
      • 1...fxe4
        • 2.Sg4#
      • 1...Re3
        • 2.Sg4#
      • 1...Rf4
        • 2.Qa7#
      • 1...f4
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE,P_PINQ(H),P_SPINR(c),XP(D)::QAB1(H),XR(c)
    • P(e);N_GUARD,XP(E)::S(G)
    • P(e);N_GUARD::S(G)
  • Tries
    • Try
      • Q(H);P_PINR(c),XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • R(c);N_SPINR(c),XQ(H)::S(G)
        • R(c);::S(G)
      • Refutation
        • K(a);N_SPINR(c),S_FLIGHT
  • Actual
    • Q(H);
    • Vars
      • R(c);CHECK,P_SPINR(c),S_CUTP(e),XP(D)::S(G)
      • K(a);S_FLIGHT::QAB(H)
      • R(c);S_CUTP(e),XP(C)::S(G)
      • P(e);N_GUARD,XP(E)::S(G)
      • R(c);S_CUTP(e)::S(G)
      • R(c);N_GUARD::QAB(H)
      • P(e);N_GUARD::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).