MESON Chess Problem Database

Problem Display
PID: 160381 (8/8/3K4/5b2/3k4/8/4Q1B1/1N6 w - - 0 1)

Abdullayev, Suleyman

Moscow Ty., 2012

8/8/3K4/5b2/3k4/8/4Q1B1/1N6

#2

4 + 2

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.Qe4#
    • 1...Be4
      • 2.Qxe4#
    • 1...Bg4
      • 2.Qe4#
    • 1...Be6
      • 2.Qe4#
    • 1...Bd7
      • 2.Qe4#
    • 1...Bc8
      • 2.Qe4#
  • Tries
    • 1.Sa3?
      • threat
        • 2.Sb5#
      • 1...Bd3
        • 2.Qe5#
      • 1...Bd7
        • 2.Qd2#
      • 1...Kc3!
    • 1.Qc2?
      • threat
        • 2.Qc3#
      • 1...Ke3
        • 2.Qd2#
      • 1...Bd3
        • 2.Qc5#
      • 1...Bxc2!
  • Keys
    • 1.Bf1!
      • threat
        • 2.Qe5#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Be4
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(b);N_GUARD::QAR1(B)
    • B(b);N_GUARD::QAR1(B),XB(b)
  • Tries
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • B(b);SBLOCK::QAB1(B)
        • B(b);N_GUARD::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • B(b);SBLOCK::QAB1(B)
      • Refutation
        • B(b);XQ(B)
  • Actual
    • B(C);
    • Threat
      • QAB1(B)
    • Vars
      • B(b);N_GUARD::QAR1(B),XB(b)
      • B(b);SBLOCK::QAB(B)
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).