MESON Chess Problem Database

Problem Display
PID: 121523 (Q7/8/1K3p2/2PBkp2/7P/1P2p3/4P3/8 w - - 0 1)

Drnek, Josef

Nove parizske mody, 1900

Q7/8/1K3p2/2PBkp2/7P/1P2p3/4P3/8

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bh1?
      • 1...Kd4
        • 2.Qa1#
      • 1...Ke6
        • 2.Qe8#
      • 1...f4
        • 2.Qe4#
        • 2.Qd5#
      • 1...Kf4!
    • 1.Bg2?
      • 1...Kd4
        • 2.Qa1#
      • 1...Ke6
        • 2.Qe8#
      • 1...f4
        • 2.Qe4#
        • 2.Qd5#
      • 1...Kf4!
    • 1.Qa4?
      • 1...f4
        • 2.Qe4#
      • 1...Kxd5!
  • Keys
    • 1.Bf3!
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf4
        • 2.Qb8#
      • 1...Ke6
        • 2.Qe8#
      • 1...f4
        • 2.Qe4#
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);
      • Vars
        • K(b);S_FLIGHT::QAB(G)
        • K(b);P-FLIGHT::QAR2(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);S_FLIGHT::QAB(G)
        • K(b);P-FLIGHT::QAR2(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • P(c);N_GUARD::QAR1(G)
      • Refutation
        • K(b);P-FLIGHT,XB(E)
  • Actual
    • B(E);
    • Vars
      • K(b);S_FLIGHT::QAB(G)
      • K(b);P-FLIGHT::QAR2(G)
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).