MESON Chess Problem Database

Problem Display
PID: 50086 (8/8/2p2K2/8/8/8/QnrPNNpk/8 w - - 0 1)

Hansen, Erik

Skakbladet, 2003

8/8/2p2K2/8/8/8/QnrPNNpk/8

#2

5 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qg8?
      • threat
        • 2.Qh7#
        • 2.Qg3#
        • 2.Qb8#
        • 2.Qh8#
      • 1...Rxd2
        • 2.Qh7#
        • 2.Qg3#
        • 2.Qh8#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
        • 2.Qg3#
      • 1...g1B
        • 2.Qxg1#
        • 2.Qg3#
      • 1...g1R
        • 2.Qxg1#
      • 1...Rc4
        • 2.Qg3#
      • 1...Rc5
        • 2.Qg3#
      • 1...Sd3
        • 2.Qh7#
        • 2.Qg3#
        • 2.Qh8#
      • 1...Sc4
        • 2.Qh7#
        • 2.Qg3#
        • 2.Qh8#
      • 1...Rc3!
    • 1.Qa1?
      • threat
        • 2.Qg1#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...Sd1
        • 2.Qe5#
      • 1...Rc1!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qg1#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...Rc1
        • 2.Qh7#
      • 1...Sd1
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(4)
      • Vars
        • P(c);OGATE::QAB1(A),XQ(c)
        • P(c);OGATE::QAB1(A),XR(c)
        • R(b);::QAB1(A)
      • Refutation
        • R(b);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(c);::QAB1(A),XQ(c)
        • P(c);::QAB1(A),XS(c)
        • P(c);::QAB1(A),XB(c)
        • P(c);::QAB1(A),XR(c)
        • S(a);OGATE::QAB(A)
      • Refutation
        • R(b);
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • P(c);::QAB1(A),XQ(c)
      • P(c);::QAB1(A),XS(c)
      • P(c);::QAB1(A),XB(c)
      • P(c);::QAB1(A),XR(c)
      • R(b);OGATE::QAR(A)
      • S(a);OGATE::QAB(A)
HTML5 logo

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).