MESON Chess Problem Database

Problem Display
PID: 141496 (4R3/2Nk4/7R/5K2/3p4/2ppp3/2BpQ2B/3b4 w - - 0 1)

Grinchenko, Dmitry

Probleemblad, 1976

4R3/2Nk4/7R/5K2/3p4/2ppp3/2BpQ2B/3b4

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2
      • 2.Ba4#
    • 1...dxc2
      • 2.Qb5#
  • Tries
    • 1.Ke4?
      • 1...Bxc2
        • 2.Qg4#
      • 1...Bxe2
        • 2.Ba4#
      • 1...dxc2
        • 2.Qb5#
      • 1...dxe2!
    • 1.Qg4?
      • threat
        • 2.Qxd4#
        • 2.Qg7#
      • 1...Bf3
        • 2.Qg7#
      • 1...Bxg4+!
    • 1.Qh5?
      • threat
        • 2.Qf7#
      • 1...Bxh5
        • 2.Ba4#
      • 1...Bg4+!
    • 1.Qg2?
      • threat
        • 2.Rh7#
        • 2.Qd5#
        • 2.Qc6#
        • 2.Qg7#
      • 1...Bf3
        • 2.Qg7#
      • 1...Bh5
        • 2.Ba4#
        • 2.Qd5#
        • 2.Qc6#
      • 1...Bg4+!
  • Keys
    • 1.Kg5!
      • 1...Bxc2
        • 2.Qg4#
      • 1...Bxe2
        • 2.Ba4#
      • 1...dxc2
        • 2.Qb5#
      • 1...dxe2
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD,XQ(B)::B(A)
    • P(d);OGATE,XB(A)::QAB(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • B(a);N_GUARD,XB(A)::QAB(B)
        • B(a);N_GUARD,XQ(B)::B(A)
        • P(d);OGATE,XB(A)::QAB(B)
      • Refutation
        • P(d);XQ(B)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR(B)
      • Refutation
        • B(a);CHECK,XQ(B)
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • B(a);N_GUARD,XQ(B)::B(A)
      • Refutation
        • B(a);CHECK
    • Try
      • Q(B);
      • Threat
        • DUALS(4)
      • Vars
        • B(a);::QAR(B)
      • Refutation
        • B(a);CHECK
  • Actual
    • K(D);P-FLIGHT
    • Vars
      • B(a);N_GUARD,XB(A)::QAB(B)
      • B(a);N_GUARD,XQ(B)::B(A)
      • P(d);OGATE,XB(A)::QAB(B)
      • P(d);OGATE,XQ(B)::B(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).