MESON Chess Problem Database

Problem Display
PID: 137028 (2K5/2p1P3/2P1p3/P1k1N3/2P1Rb2/6p1/8/3QBBq1 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Kopyl, Valery Volodimirovich

7th HM., The Problemist, 2010

2K5/2p1P3/2P1p3/P1k1N3/2P1Rb2/6p1/8/3QBBq1

#2

10 + 6

56 The Problemist 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Qd4#
    • 1...Qd4
      • 2.Qxd4#
    • 1...Qxf1
      • 2.Qd4#
    • 1...Qh1
      • 2.Qd4#
    • 1...Qg2
      • 2.Qd4#
  • Tries
    • 1.Kb7?
      • threat
        • 2.Sd7#
      • 1...Bxe5
        • 2.Rxe5#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Bd2!
    • 1.Kd7?
      • threat
        • 2.Sd3#
      • 1...Qd4+
        • 2.Qxd4#
      • 1...Qxf1
        • 2.Qd4#
      • 1...Bxe5
        • 2.Rxe5#
      • 1...Qe3!
    • 1.Qd7?
      • threat
        • 2.Sd3#
      • 1...Qxf1
        • 2.Qd4#
      • 1...Bxe5
        • 2.Rxe5#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Qe3!
    • 1.e8Q?
      • threat
        • 2.Qe7#
        • 2.Qf8#
      • 1...Bxe5
        • 2.Rxe5#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Bh6
        • 2.Qe7#
      • 1...Bg5!
  • Keys
    • 1.Kxc7!
      • threat
        • 2.Qd6#
      • 1...Bxe5+
        • 2.Rxe5#
      • 1...Bd2
        • 2.Sd3#
      • 1...Qd4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(a);N_GUARD::QAB1(A)
    • Q(a);N_GUARD::QAB1(A),XQ(a)
    • Q(a);N_GUARD,XB(C)::QAB1(A)
  • Tries
    • Try
      • K(J);S_FLIGHT
      • Threat
        • S(G)
      • Vars
        • B(c);OGATE,XS(G)::R(E),XB(c)
        • Q(a);N_GUARD::QAB1(A),XQ(a)
      • Refutation
        • B(c);
    • Try
      • K(J);S_FLIGHT
      • Threat
        • S(G)
      • Vars
        • Q(a);CHECK,N_GUARD::QAB1(A),XQ(a)
        • Q(a);N_GUARD,XB(C)::QAB1(A)
        • B(c);OGATE,XS(G)::R(E),XB(c)
      • Refutation
        • Q(a);
    • Try
      • Q(A);
      • Threat
        • S(G)
      • Vars
        • Q(a);N_GUARD,XB(C)::QAB1(A)
        • B(c);OGATE,XS(G)::R(E),XB(c)
        • Q(a);N_GUARD::QAB1(A),XQ(a)
      • Refutation
        • Q(a);
    • Try
      • P(I);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);OGATE,XS(G)::R(E),XB(c)
        • Q(a);N_GUARD::QAB1(A),XQ(a)
        • B(c);::QAB(I)
      • Refutation
        • B(c);
  • Actual
    • K(J);P-FLIGHT,P_SPINS(G),XP(f)
    • Threat
      • QAB1(A)
    • Vars
      • B(c);CHECK,OGATE,XS(G)::R(E),XB(c)
      • B(c);N_PINS(G)::S(G)
      • Q(a);N_GUARD::QAB1(A),XQ(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).