MESON Chess Problem Database

Problem Display
PID: 172367 (8/8/3p4/4n3/4k3/2K3R1/7R/5Q2 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1997

8/8/3p4/4n3/4k3/2K3R1/7R/5Q2

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Re2#
  • Tries
    • 1.Re3+?
      • 1...Kxe3
        • 2.Re2#
      • 1...Kd5!
  • Keys
    • 1.Rh5!
      • 1...Kd5
        • 2.Qc4#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sd3
        • 2.Qf3#
        • 2.Qf5#
      • 1...Sc4
        • 2.Qxc4#
        • 2.Qf3#
        • 2.Qf5#
      • 1...Sg4
        • 2.Qc4#
        • 2.Qf3#
        • 2.Qf5#
      • 1...Sc6
        • 2.Qf3#
        • 2.Qf5#
      • 1...Sg6
        • 2.Qc4#
        • 2.Qf3#
        • 2.Qf5#
      • 1...Sd7
        • 2.Qc4#
        • 2.Qf3#
        • 2.Qf5#
      • 1...Sf7
        • 2.Qc4#
        • 2.Qf3#
        • 2.Qf5#
      • 1...d5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::R(B)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(a);P-FLIGHT,XR(D)::R1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(a);P_SPINS(b),S_FLIGHT::QAB1(A)
      • S(b);N_GUARD::QAB1(A),XS(b)
      • P(c);SBLOCK::QAB1(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).