MESON Chess Problem Database

Problem Display
PID: 33690 (1K3Q2/3k4/1p1N4/3p4/8/8/8/6B1 w - - 0 1)

Bantysh, Nikolai Ivanovich

The Problemist, 2001

1K3Q2/3k4/1p1N4/3p4/8/8/8/6B1

#2

4 + 3

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qc8#
      • 1...Kc6
        • 2.Qe8#
      • 1...Ke6!
    • 1.Qe7+?
      • 1...Kc6
        • 2.Qc7#
      • 1...Kxe7!
    • 1.Qf7+?
      • 1...Kc6
        • 2.Qc7#
      • 1...Kd8
        • 2.Sb7#
        • 2.Bxb6#
        • 2.Qe8#
        • 2.Qc7#
      • 1...Kxd6!
  • Keys
    • 1.Bh2!
      • threat
        • 2.Qe8#
      • 1...Kc6
        • 2.Qc8#
      • 1...Ke6
        • 2.Qf7#

Anticipated by 107900(1900)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(D)
      • Vars
        • K(c);S_FLIGHT::QAB(D)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(D)
      • Refutation
        • K(c);P-FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(D)
      • Refutation
        • K(c);P-FLIGHT,XS(B)
  • Actual
    • B(A);
    • Threat
      • QAB1(D)
    • Vars
      • K(c);S_FLIGHT::QAR2(D)
      • K(c);S_FLIGHT::QAB1(D)
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).