MESON Chess Problem Database

Problem Display
PID: 4536 (8/8/1p1Qp2N/1p6/1N1Pkp2/8/4pP2/4K3 w - - 0 1)

Dobrusky, Jan

Humoristicke listy, 1876

8/8/1p1Qp2N/1p6/1N1Pkp2/8/4pP2/4K3

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qc6#
    • 1...f3
      • 2.Qe5#
    • 1...e5
      • 2.Qd5#
  • Tries
    • 1.Kxe2?
      • threat
        • 2.Qe5#
        • 2.f3#
      • 1...e5
        • 2.Qxe5#
        • 2.Qd5#
        • 2.f3#
      • 1...f3+!
    • 1.Qc5?
      • 1...Kf3
        • 2.Qc6#
      • 1...f3
        • 2.Qe5#
      • 1...e5
        • 2.Qd5#
      • 1...bxc5!
    • 1.Qxe6+?
      • 1...Kf3
        • 2.Qd5#
        • 2.Qc6#
      • 1...Kxd4!
    • 1.Qd7?
      • 1...Kf3
        • 2.Qc6#
        • 2.Qb7#
      • 1...e5
        • 2.Qd5#
      • 1...f3!
  • Keys
    • 1.Qd8!
      • 1...Kf3
        • 2.Qa8#
      • 1...f3
        • 2.Qh4#
      • 1...e5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB(E)
    • P(c);SBLOCK::QAR1(E)
    • P(f);N_GUARD::QAB1(E)
  • Tries
    • Try
      • K(A);P-FLIGHT,XP(a)
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);CHECK
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAB(E)
        • P(c);SBLOCK::QAR1(E)
        • P(f);N_GUARD::QAB1(E)
      • Refutation
        • P(e);XQ(E)
    • Try
      • Q(E);CHECK,XP(f)
      • Refutation
        • K(b);P-FLIGHT,XP(D)
    • Try
      • Q(E);
      • Vars
        • P(f);N_GUARD::QAB1(E)
      • Refutation
        • P(c);
  • Actual
    • Q(E);
    • Vars
      • K(b);S_FLIGHT::QAB(E)
      • P(c);OGATEB,SBLOCK::QAR(E)
      • P(f);N_GUARD::QAB1(E)
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).