MESON Chess Problem Database

Problem Display
PID: 17469 (1nr4R/7p/2pPk1pR/p3N1P1/N5P1/PK6/BB6/1Q6 w - - 0 1)

Visserman, Eeltje

3rd Prize, van Dijk/van Beek Ty., 1946

1nr4R/7p/2pPk1pR/p3N1P1/N5P1/PK6/BB6/1Q6

#2

12 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Rxg6+?
      • 1...Kd5
        • 2.Qd3#
        • 2.Qh1#
      • 1...hxg6!
    • 1.Qd3?
      • threat
        • 2.Kc2#
        • 2.Sc5#
      • 1...Sa6
        • 2.Kc2#
      • 1...Sd7
        • 2.Kc2#
      • 1...c5!
    • 1.Qxg6+?
      • 1...Kd5
        • 2.Kc2#
        • 2.Qd3#
      • 1...hxg6!
    • 1.Qd1?
      • threat
        • 2.Kc2#
        • 2.Sc5#
      • 1...Sa6
        • 2.Kc2#
      • 1...Sd7
        • 2.Kc2#
      • 1...c5!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Qf5#
      • 1...Kd5
        • 2.Kc3#
      • 1...Kd7
        • 2.Sc5#
      • 1...Kxf7
        • 2.Kc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(K);CHECK,XP(d)
      • Refutation
        • P(e);XR(K)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);::B(B)+K(E)
      • Refutation
        • P(b);
    • Try
      • Q(A);CHECK,XP(d)
      • Refutation
        • P(e);P_SPINP(e),XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);::B(B)+K(E)
      • Refutation
        • P(b);
  • Actual
    • S(H);
    • Threat
      • QAB1(A)
    • Vars
      • K(c);N_SPINP(d),S_FLIGHT::B(B)+K(E)
      • K(c);N_SPINP(d),S_FLIGHT::S(F)
      • K(c);N_SPINP(d),S_FLIGHT,XS(H)::B(B)+K(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).