MESON Chess Problem Database

Problem Display
PID: 163851 (8/B1N1p1Q1/3k4/4N3/7p/7B/8/2K5 w - - 0 1)

Chernikh, Vassily

Zadachi i Etyudi, 2014

8/B1N1p1Q1/3k4/4N3/7p/7B/8/2K5

#2

6 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc7
      • 2.Qxe7#
  • Tries
    • 1.Kb1?
      • 1...Kxc7
        • 2.Qxe7#
      • 1...e6!
    • 1.Kd1?
      • 1...Kxc7
        • 2.Qxe7#
      • 1...e6!
    • 1.Kb2?
      • 1...Kxc7
        • 2.Qxe7#
      • 1...e6!
    • 1.Kc2?
      • 1...Kxc7
        • 2.Qxe7#
      • 1...e6!
    • 1.Kd2?
      • 1...Kxc7
        • 2.Qxe7#
      • 1...e6!
    • 1.Be6?
      • 1...Kxc7
        • 2.Qxe7#
      • 1...h3!
    • 1.Bd4?
      • 1...e6
        • 2.Qd7#
      • 1...Kxc7!
    • 1.Qf8?
      • 1...Kxc7
        • 2.Qxe7#
        • 2.Qb8#
      • 1...Kxe5!
    • 1.Qh8?
      • 1...Kxc7
        • 2.Qb8#
      • 1...e6!
    • 1.Qg4?
      • 1...Kxe5
        • 2.Qd4#
      • 1...Kxc7
        • 2.Qd7#
      • 1...e6!
    • 1.Qg5?
      • 1...Kxc7
        • 2.Qxe7#
      • 1...e6!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qc5#
      • 1...Kxe5
        • 2.Qd4#
      • 1...Kxc7
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINP(c),S_FLIGHT,XS(E)::QAR2(F),XP(c)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT,XS(E)::QAR2(F),XP(c)
      • Refutation
        • P(c);
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT,XS(E)::QAR2(F),XP(c)
      • Refutation
        • P(c);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT,XS(E)::QAR2(F),XP(c)
      • Refutation
        • P(c);
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT,XS(E)::QAR2(F),XP(c)
      • Refutation
        • P(c);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT,XS(E)::QAR2(F),XP(c)
      • Refutation
        • P(c);
    • Try
      • B(B);
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT,XS(E)::QAR2(F),XP(c)
      • Refutation
        • P(a);
    • Try
      • B(D);
      • Vars
        • P(c);OGATE::QAR1(F)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT,XS(E)
    • Try
      • Q(F);P_PINP(c)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(F)
      • Refutation
        • P(c);
    • Try
      • Q(F);
      • Vars
        • K(b);S_FLIGHT,XS(C)::QAB1(F)
        • K(b);S_FLIGHT,XS(E)::QAR1(F)
      • Refutation
        • P(c);
    • Try
      • Q(F);
      • Vars
        • K(b);S_FLIGHT,XS(E)::QAR2(F),XP(c)
      • Refutation
        • P(c);
  • Actual
    • Q(F);
    • Threat
      • QAB1(F)
    • Vars
      • K(b);S_FLIGHT,XS(C)::QAB1(F)
      • K(b);S_FLIGHT,XS(E)::QAB1(F)
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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).