MESON Chess Problem Database

Problem Display
PID: 164452 (8/p1N5/8/8/pkp5/4Q3/8/1K6 w - - 0 1)

Romanovskis, Vladimirs

Sachmatija, 2007

8/p1N5/8/8/pkp5/4Q3/8/1K6

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Qc5#
  • Tries
    • 1.Qa3+?
      • 1...Ka5
        • 2.Qc5#
      • 1...Kxa3!
  • Keys
    • 1.Kb2!
      • 1...a3+
        • 2.Qxa3#
      • 1...c3+
        • 2.Qxc3#
      • 1...Ka5
        • 2.Qc5#
      • 1...a5
        • 2.Qb6#
        • 2.Qa3#
        • 2.Qe7#
      • 1...a6
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR2(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,P_SPINP(a),S_FLIGHT::QAR2(B)
      • Refutation
        • K(b);S_FLIGHT,XQ(B)
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • P(a);CHECK::QAB1(B),XP(a)
      • P(c);CHECK::QAB1(B),XP(c)
      • K(b);S_FLIGHT::QAR2(B)
      • P(d);N_GUARD::QAR2(B)
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).