MESON Chess Problem Database

Problem Display
PID: 239238 (5R2/8/Q4B2/2q2k1K/8/8/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Schach, 2009

5R2/8/Q4B2/2q2k1K/8/8/8/8

#2

4 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Qe2!
      • threat
        • 2.Be7#
        • 2.Qg4#
      • 1...Kf4+
        • 2.Be5#
      • 1...Qxf8
        • 2.Qe5#
      • 1...Qe3
        • 2.Qg4#
      • 1...Qe5
        • 2.Qg4#
        • 2.Qxe5#
      • 1...Qg1
        • 2.Ba1#
        • 2.Bb2#
        • 2.Bc3#
        • 2.Bd4#
        • 2.Bh4#
        • 2.Bg5#
        • 2.Be7#
        • 2.Bg7#
        • 2.Bd8#
        • 2.Bh8#
        • 2.Qe5#
      • 1...Qb4
        • 2.Be7#
        • 2.Qe5#
      • 1...Qd4
        • 2.Bxd4#
      • 1...Qb6
        • 2.Qg4#
        • 2.Qe5#
      • 1...Qd6
        • 2.Qg4#
      • 1...Qe7
        • 2.Bxe7#
        • 2.Qg4#
      • 1...Qc3
        • 2.Bxc3#
        • 2.Bd4#
        • 2.Qg4#
      • 1...Qc4
        • 2.Qe5#
      • 1...Qd5
        • 2.Qg4#
      • 1...Qc6
        • 2.Qg4#
        • 2.Qe5#
      • 1...Qc8
        • 2.Bd8#
        • 2.Qg4#
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);CHECK,P-FLIGHT::R(D)+B(C),DCHECK
      • Q(a);N_GUARD,XR(D)::QAR1(B)
      • Q(a);::QAB1(B)
      • Q(a);N_GUARD::R(D)+B(C),XQ(a)
      • Q(a);N_GUARD::QAR1(B)
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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).