MESON Chess Problem Database

Problem Display
PID: 158617 (K1k5/1p1pQ3/p2p4/8/7r/2B5/2B5/2R3r1 w - - 0 1)

Alaikov, Venelin

Themes-64, 1965

K1k5/1p1pQ3/p2p4/8/7r/2B5/2B5/2R3r1

#2

5 + 7

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Ba5?
      • threat
        • 2.Qd8#
        • 2.Qf8#
        • 2.Qe8#
      • 1...Re1
        • 2.Qd8#
      • 1...Rf1
        • 2.Qd8#
        • 2.Qe8#
      • 1...Rg8
        • 2.Be4#
      • 1...Re4
        • 2.Qd8#
      • 1...Rf4
        • 2.Qd8#
        • 2.Qe8#
      • 1...Rh8
        • 2.Bd1#
      • 1...b6!
    • 1.Bf6?
      • threat
        • 2.Qd8#
      • 1...Rg8
        • 2.Be4#
      • 1...Rh8
        • 2.Bd1#
      • 1...Kc7!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Qxd7#
      • 1...Kc7
        • 2.Ba5#
      • 1...Rg7
        • 2.Bd4#
      • 1...Rh7
        • 2.Be1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Threat
        • DUALS(3)
      • Vars
        • R(a);::QAR1(D)
        • R(a);N_GUARD::R(A)+B(B)
        • R(b);::QAR1(D)
        • R(b);N_GUARD::R(A)+B(B)
      • Refutation
        • P(e);
    • Try
      • B(C);
      • Threat
        • QAR1(D)
      • Vars
        • R(a);N_GUARD::R(A)+B(B)
        • R(b);N_GUARD::R(A)+B(B)
      • Refutation
        • K(g);P-FLIGHT,P_SPINP(f)
  • Actual
    • B(B);P_PINP(f)
    • Threat
      • QAB1(D),XP(f)
    • Vars
      • K(g);P-FLIGHT::R(A)+B(C),DCHECK
      • R(a);N_GUARD::R(A)+B(C)
      • R(b);N_GUARD::R(A)+B(C)
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).