MESON Chess Problem Database

Problem Display
PID: 141178 (8/3QN3/2p1p3/2P1p3/2p1kp1P/2P5/3P4/3B2K1 w - - 0 1)

Kolodnas, Zelikas

Reich, 1915

8/3QN3/2p1p3/2P1p3/2p1kp1P/2P5/3P4/3B2K1

#2

8 + 6

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Sg6?
      • 1...f3
        • 2.Bc2#
      • 1...Kf5!
    • 1.Sg8?
      • 1...Kf5
        • 2.Qh7#
      • 1...f3!
    • 1.Qxe6?
      • threat
        • 2.Qxc4#
        • 2.Qf5#
        • 2.Qg6#
      • 1...f3
        • 2.Qxc4#
        • 2.Qf5#
      • 1...Kd3!
  • Keys
    • 1.Sd5!
      • 1...Kd3
        • 2.Sf6#
      • 1...Kf5
        • 2.Qh7#
      • 1...cxd5
        • 2.Qh7#
      • 1...exd5
        • 2.Qh7#
      • 1...f3
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);
      • Vars
        • P(c);SBLOCK::B(A)
      • Refutation
        • K(b);P_SPINP(f),S_FLIGHT
    • Try
      • S(H);
      • Vars
        • K(b);P_SPINP(f),S_FLIGHT::QAB(G)
      • Refutation
        • P(c);
    • Try
      • Q(G);P_PINP(d),XP(f)
      • Threat
        • DUALS(3)
      • Refutation
        • K(b);N_SPINP(d),S_FLIGHT
  • Actual
    • S(H);
    • Vars
      • K(b);S_FLIGHT::QAR(G)+S(H)
      • K(b);P_SPINP(f),S_FLIGHT::QAB(G)
      • P(e);SBLOCK,XS(H)::QAB(G)
      • P(f);SBLOCK,XS(H)::QAB(G)
      • P(c);SBLOCK::B(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).