MESON Chess Problem Database

Problem Display
PID: 180802 (Q7/1p6/1P4B1/4K3/7N/2P1k3/4p3/7R w - - 0 1)

Akimov, Nikolai Nikolaevich

Sachmatija, 2017

Q7/1p6/1P4B1/4K3/7N/2P1k3/4p3/7R

#2

7 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qa2?
      • 1...e1Q
        • 2.Rxe1#
      • 1...e1S
        • 2.Rxe1#
      • 1...e1B
        • 2.Rxe1#
      • 1...e1R
        • 2.Rxe1#
        • 2.Rh3#
      • 1...Kf2!
  • Keys
    • 1.Qa1!
      • 1...Kd2
        • 2.Qc1#
      • 1...Kf2
        • 2.Qg1#
      • 1...e1Q
        • 2.Qxe1#
      • 1...e1S
        • 2.Qxe1#
      • 1...e1B
        • 2.Qxe1#
      • 1...e1R
        • 2.Qxe1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Vars
        • P(a);OGATEB::R(A),XQ(a)
        • P(a);OGATEB::R(A),XS(a)
        • P(a);OGATEB::R(A),XB(a)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(b);S_FLIGHT::QAB1(G)
      • P(a);OGATEB::QAR2(G),XQ(a)
      • P(a);OGATEB::QAR2(G),XS(a)
      • P(a);OGATEB::QAR2(G),XB(a)
      • P(a);OGATEB::QAR2(G),XR(a)
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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).