MESON Chess Problem Database

Problem Display
PID: 121528 (8/8/4pN1K/6P1/5k2/2P2N2/4P3/4Q3 w - - 0 1)

Drnek, Josef

Nove parizske mody, 1904

8/8/4pN1K/6P1/5k2/2P2N2/4P3/4Q3

#2

7 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd4?
      • 1...Ke5
        • 2.Qg3#
      • 1...e5
        • 2.Qf2#
        • 2.e3#
      • 1...Ke3!
    • 1.Qd2+?
      • 1...Kf5
        • 2.e4#
      • 1...Kg3!
    • 1.Qf2?
      • 1...e5
        • 2.Se1#
        • 2.Sg1#
        • 2.Sd2#
        • 2.Sh2#
        • 2.Sd4#
        • 2.Sh4#
      • 1...Kf5!
    • 1.Qh4+?
      • 1...Kf5
        • 2.Qe4#
        • 2.Qg4#
        • 2.e4#
      • 1...Ke3!
    • 1.Qc1+?
      • 1...Kf5
        • 2.e4#
      • 1...Kg3!
    • 1.Qg1?
      • 1...Kf5
        • 2.Qg4#
      • 1...e5!
    • 1.e3+?
      • 1...Kf5
        • 2.Qb1#
      • 1...Kxf3!
  • Keys
    • 1.Sh4!
      • 1...Ke3
        • 2.Sg2#
      • 1...Ke5
        • 2.Qg3#
      • 1...e5
        • 2.Qf2#
        • 2.e3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::P(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::P(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • P(b);
    • Try
      • P(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB(A)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::S(D)
      • K(a);S_FLIGHT::QAB(A)
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).